Enlarging the place of human rights and development in international trade regulation: an evaluation of the problems and prospects of incorporating a social clause in the legal framework of the World Trade Organization
- Authors: Warikandwa, Tapiwa Victor
- Date: 2012
- Subjects: Social Clause -- Development -- International Trade Regulation -- Human Rights -- World Trade Organization
- Language: English
- Type: Thesis , Doctoral , LLD
- Identifier: vital:11120 , http://hdl.handle.net/10353/d1015224
- Description: An agreement on the inclusion of a social clause in the World Trade Organization‟s (WTO) multilateral trade agreements largely depends on reassuring objecting member states that such inclusion will contribute to an improved recognition of core labour standards in trade, without altering the competitive advantage of one trading partner over another. Reassurance must be given to the effect that incorporating a social clause in the WTO legal framework would not be used as a trade restricting mechanism which might have direct, negative effects on the development of countries worldwide. Such an argument may not be won easily from a legal and economic perspective. There is an omnipresent conflict at the international level between the basic values underlying multilateral trade agreements and principles governing the protection of core labour standards. On the one hand, supporting the stance of free trade is the fundamental force of profit maximization while on the other hand, and in direct opposition to this market driven value system, are human rights-based calls for recognising core labour standards in employment matters related to trade. Increased international trade is a powerful tool for tackling poverty and social misery worldwide. It could thus be important to adopt a legal framework in the multilateral trade system to harness potential opportunities a trade-labour linkage could provide. In that case, the legal questions of whether or not there should be a tradeoff between the right to trade and compliance with core labour standards and whether a social clause in the WTO would achieve this purpose had to be addressed. However, without a compatible underpinning legal framework of universally accepted trade-labour standards, incorporating a social clause in the WTO would be a misplaced legal objective which is unachievable as it could lead to a conflict between the WTO and the International Labour Organisation (ILO) and at most could create a legal fiction whose results may not be positively measurable. Setting two international legal norms at conflict with each other is systematically studied as a conflict in which the values of the global market economy are in a supposed confrontation with those protecting core labour standards as human rights. Therefore, this study undertook a contemporary legal analysis of the possibilities and challenges of incorporating a social clause in the WTO for purposes of entrenching the protection of core labour standards. It put forward arguments and tentative proposals for a trade-labour linkage legal framework which could dispel calls for excluding a social clause in the WTO.
- Full Text:
- Authors: Warikandwa, Tapiwa Victor
- Date: 2012
- Subjects: Social Clause -- Development -- International Trade Regulation -- Human Rights -- World Trade Organization
- Language: English
- Type: Thesis , Doctoral , LLD
- Identifier: vital:11120 , http://hdl.handle.net/10353/d1015224
- Description: An agreement on the inclusion of a social clause in the World Trade Organization‟s (WTO) multilateral trade agreements largely depends on reassuring objecting member states that such inclusion will contribute to an improved recognition of core labour standards in trade, without altering the competitive advantage of one trading partner over another. Reassurance must be given to the effect that incorporating a social clause in the WTO legal framework would not be used as a trade restricting mechanism which might have direct, negative effects on the development of countries worldwide. Such an argument may not be won easily from a legal and economic perspective. There is an omnipresent conflict at the international level between the basic values underlying multilateral trade agreements and principles governing the protection of core labour standards. On the one hand, supporting the stance of free trade is the fundamental force of profit maximization while on the other hand, and in direct opposition to this market driven value system, are human rights-based calls for recognising core labour standards in employment matters related to trade. Increased international trade is a powerful tool for tackling poverty and social misery worldwide. It could thus be important to adopt a legal framework in the multilateral trade system to harness potential opportunities a trade-labour linkage could provide. In that case, the legal questions of whether or not there should be a tradeoff between the right to trade and compliance with core labour standards and whether a social clause in the WTO would achieve this purpose had to be addressed. However, without a compatible underpinning legal framework of universally accepted trade-labour standards, incorporating a social clause in the WTO would be a misplaced legal objective which is unachievable as it could lead to a conflict between the WTO and the International Labour Organisation (ILO) and at most could create a legal fiction whose results may not be positively measurable. Setting two international legal norms at conflict with each other is systematically studied as a conflict in which the values of the global market economy are in a supposed confrontation with those protecting core labour standards as human rights. Therefore, this study undertook a contemporary legal analysis of the possibilities and challenges of incorporating a social clause in the WTO for purposes of entrenching the protection of core labour standards. It put forward arguments and tentative proposals for a trade-labour linkage legal framework which could dispel calls for excluding a social clause in the WTO.
- Full Text:
Evaluation of poverty alleviation strategies implemented by non-governmental organisations (NGOs) in Zimbabwe: a case of Binga rural district
- Authors: Nyathi, Daina
- Date: 2012
- Subjects: Poverty -- Zimbabwe , Rural poor -- Zimbabwe Case studies , Non-governmental organizations -- Zimbabwe -- Evaluation , Sustainable development -- Zimbabwe
- Language: English
- Type: Thesis , Masters , M Soc Sc (Dev)
- Identifier: vital:11426 , http://hdl.handle.net/10353/507 , Poverty -- Zimbabwe , Rural poor -- Zimbabwe Case studies , Non-governmental organizations -- Zimbabwe -- Evaluation , Sustainable development -- Zimbabwe
- Description: The problem this research seeks to address is about the ineffectiveness of NGOs’ strategies implemented in the rural areas of Binga District in Zimbabwe. The research has been basically influenced by personal concerns which I believe have influenced the selection of the research problem. My main concern is the deepening of poverty in Binga District. Lack of infrastructure like roads, shortage of schools leading to high illiteracy levels, shortage of clinics and hospitals, lack of clean water, high unemployment levels are the indicators of poverty in Binga. Country wide, the district is regarded as one of the poorest districts. The purpose of this study was to evaluate the effectiveness of the poverty alleviation strategies implemented by NGOs in the rural areas of Zimbabwe specifically in Binga. Today there are more than fifteen NGOs that operate in Binga and they specialise in different areas ranging from food distribution, education, agriculture, conservation and advocacy. What matters most is that despite the number of NGOs operating in Binga, poverty is still intensifying and widening. Through the research, it was found that most NGOs’ strategies in Binga focus on relief than developmental aid. Also when addressing poverty, NGOs use the trickle down approach than the bottom up approach. Moreover, the strategies implemented in Binga do not address the needs of the poor. The political instability in Zimbabwe is also believed to be a serious stumbling block to the operation of NGOs in Binga and the rest of the country. Finally, the research recommends NGOs to use the participatory approach as well as the sustainable livelihoods approach in dealing with poverty. Again, NGOs need to monitor and evaluate their projects because most of their projects are not monitored and evaluated properly. Above all the NGOs’ strategies for alleviating poverty need to be reviewed.
- Full Text:
- Authors: Nyathi, Daina
- Date: 2012
- Subjects: Poverty -- Zimbabwe , Rural poor -- Zimbabwe Case studies , Non-governmental organizations -- Zimbabwe -- Evaluation , Sustainable development -- Zimbabwe
- Language: English
- Type: Thesis , Masters , M Soc Sc (Dev)
- Identifier: vital:11426 , http://hdl.handle.net/10353/507 , Poverty -- Zimbabwe , Rural poor -- Zimbabwe Case studies , Non-governmental organizations -- Zimbabwe -- Evaluation , Sustainable development -- Zimbabwe
- Description: The problem this research seeks to address is about the ineffectiveness of NGOs’ strategies implemented in the rural areas of Binga District in Zimbabwe. The research has been basically influenced by personal concerns which I believe have influenced the selection of the research problem. My main concern is the deepening of poverty in Binga District. Lack of infrastructure like roads, shortage of schools leading to high illiteracy levels, shortage of clinics and hospitals, lack of clean water, high unemployment levels are the indicators of poverty in Binga. Country wide, the district is regarded as one of the poorest districts. The purpose of this study was to evaluate the effectiveness of the poverty alleviation strategies implemented by NGOs in the rural areas of Zimbabwe specifically in Binga. Today there are more than fifteen NGOs that operate in Binga and they specialise in different areas ranging from food distribution, education, agriculture, conservation and advocacy. What matters most is that despite the number of NGOs operating in Binga, poverty is still intensifying and widening. Through the research, it was found that most NGOs’ strategies in Binga focus on relief than developmental aid. Also when addressing poverty, NGOs use the trickle down approach than the bottom up approach. Moreover, the strategies implemented in Binga do not address the needs of the poor. The political instability in Zimbabwe is also believed to be a serious stumbling block to the operation of NGOs in Binga and the rest of the country. Finally, the research recommends NGOs to use the participatory approach as well as the sustainable livelihoods approach in dealing with poverty. Again, NGOs need to monitor and evaluate their projects because most of their projects are not monitored and evaluated properly. Above all the NGOs’ strategies for alleviating poverty need to be reviewed.
- Full Text:
Evaluation of various proteomic techniques to identify proteins involved in cereal stress responses to aphid infestation
- Authors: Nqumla, Ntombekhaya
- Date: 2012
- Subjects: Aphids , Wheat , Plant proteomics , Rice
- Language: English
- Type: Thesis , Masters , MSc (Biochemistry)
- Identifier: vital:11270 , http://hdl.handle.net/10353/d1004572 , Aphids , Wheat , Plant proteomics , Rice
- Description: All plants are exposed to abiotic and biotic stresses and have developed intricate signalling responses to survive. They respond to cell-structure disruption caused by herbivore probing and feeding by the formation of callose. Callose is a linear homopolymer made up of β-1,3-linked glucose residues with some β-1,6-branches. Plant responses to abiotic or biotic stress share events such as phosphorylation, membrane depolarization, calcium influx and the release of reactive oxygen species such as hydrogen peroxide. These events lead to the up-regulation of several pathways leading to biosynthesis of signalling molecules such as salicylic acid, jasmonate, abscisic acid and ethylene pathways. The aim of this study was to determine the most suitable proteomic approach for identifying proteins and signalling pathways involved in cereal response to aphid infestation. An in silico approach was first evaluated in which the 5ʹ upstream regulatory region of proteins belonging to the family of callose synthases was scanned for cis-regulatory elements in order to identify which callose synthases are possibly expressed in plants during biotic or abiotic stresses. Bioinformatics tools were used in the identification of twelve Arabidopsis and ten rice callose synthase coding regions. Genome sequences for rice and Arabidopsis were scanned for the 2000 bp 5ʹ region upstream of the start codon of each callose synthase coding region. PlantCare, PLACE and Athena software were used to identify putative cis-regulatory elements present in the 2000 bp 5ʹ upstream sequences. The majority of cis-acting elements identified were involved in drought and high temperature responses and only one cis-acting element was involved in wound stress. These results therefore indicated a probable role for plant callose synthases in drought stress responses rather than in biotic stress responses. Genevestigator analysis of Arabidopsis results of micro-array experiments indicated that AtGSL10 is highly up-regulated, with AtGSL1, 3, 5, 6, 7, 8, 11 and 12 showing medium up-regulation and AtGSL2, 4 and 9 no up-regulation during aphid infestation of Arabidopsis plants, implicating a possible role for AtGSL10 in the plant response to aphid infestation. An LC/MS/MS approach was used to identify specific signalling pathways involved in wheat resistance or stress response to aphid infestation. Eight proteins were identified as being up-regulated during aphid feeding in wheat, and 11 proteins were identified as possibly involved in the wheat resistance mechanism against aphid infestation. Several proteins were also identified as constitutively expressed proteins, during normal conditions and aphid infestation. Most pathways identified with proteins up-regulated in the resistance mechanisms of TugelaDN plants, were related to energy metabolism and located in the chloroplast. Evaluation of two dimensional gel electrophoresis to identify phosphoproteins differentially regulated in wheat during aphid infestation, revealed the up-regulation of three proteins namely photosystem II oxygen-evolving complex protein 2, HVUNKNOWN from Hordeum vulgare subsp vulgare and HSKERAT9 NID from Homo sapiens. Additional 57 proteins were partially identified as involved in the stress response but due to low protein levels, the percentage of matching peptides to these proteins was below the required confidence level. Although these protein identifications were below the confidence level, it is interesting to note that several of the proteins are known stress response proteins, and therefore could serve as potential targets for future investigations. In conclusion, the down and up-regulation of wheat proteins after aphid feeding reported in this study suggest that several signalling pathways are involved in the cereal stress response to aphid feeding. In silico approaches require knowledge or identification of potential proteins whereas 2D and LC/MS can identify numerous proteins still unknown to be involved in specific stress responses. The 2D approach is also limited in that the proteins of interest may be in low abundance and therefore not detected in the gels due to the presence of high abundant proteins. Therefore the best approach to identify proteins and signalling pathways involved in the stress response of wheat to aphid infestation, is the LC/MS/MS approach, as this proved to be the most sensitive and robust, identifying the most proteins with a high degree of confidence.
- Full Text:
- Authors: Nqumla, Ntombekhaya
- Date: 2012
- Subjects: Aphids , Wheat , Plant proteomics , Rice
- Language: English
- Type: Thesis , Masters , MSc (Biochemistry)
- Identifier: vital:11270 , http://hdl.handle.net/10353/d1004572 , Aphids , Wheat , Plant proteomics , Rice
- Description: All plants are exposed to abiotic and biotic stresses and have developed intricate signalling responses to survive. They respond to cell-structure disruption caused by herbivore probing and feeding by the formation of callose. Callose is a linear homopolymer made up of β-1,3-linked glucose residues with some β-1,6-branches. Plant responses to abiotic or biotic stress share events such as phosphorylation, membrane depolarization, calcium influx and the release of reactive oxygen species such as hydrogen peroxide. These events lead to the up-regulation of several pathways leading to biosynthesis of signalling molecules such as salicylic acid, jasmonate, abscisic acid and ethylene pathways. The aim of this study was to determine the most suitable proteomic approach for identifying proteins and signalling pathways involved in cereal response to aphid infestation. An in silico approach was first evaluated in which the 5ʹ upstream regulatory region of proteins belonging to the family of callose synthases was scanned for cis-regulatory elements in order to identify which callose synthases are possibly expressed in plants during biotic or abiotic stresses. Bioinformatics tools were used in the identification of twelve Arabidopsis and ten rice callose synthase coding regions. Genome sequences for rice and Arabidopsis were scanned for the 2000 bp 5ʹ region upstream of the start codon of each callose synthase coding region. PlantCare, PLACE and Athena software were used to identify putative cis-regulatory elements present in the 2000 bp 5ʹ upstream sequences. The majority of cis-acting elements identified were involved in drought and high temperature responses and only one cis-acting element was involved in wound stress. These results therefore indicated a probable role for plant callose synthases in drought stress responses rather than in biotic stress responses. Genevestigator analysis of Arabidopsis results of micro-array experiments indicated that AtGSL10 is highly up-regulated, with AtGSL1, 3, 5, 6, 7, 8, 11 and 12 showing medium up-regulation and AtGSL2, 4 and 9 no up-regulation during aphid infestation of Arabidopsis plants, implicating a possible role for AtGSL10 in the plant response to aphid infestation. An LC/MS/MS approach was used to identify specific signalling pathways involved in wheat resistance or stress response to aphid infestation. Eight proteins were identified as being up-regulated during aphid feeding in wheat, and 11 proteins were identified as possibly involved in the wheat resistance mechanism against aphid infestation. Several proteins were also identified as constitutively expressed proteins, during normal conditions and aphid infestation. Most pathways identified with proteins up-regulated in the resistance mechanisms of TugelaDN plants, were related to energy metabolism and located in the chloroplast. Evaluation of two dimensional gel electrophoresis to identify phosphoproteins differentially regulated in wheat during aphid infestation, revealed the up-regulation of three proteins namely photosystem II oxygen-evolving complex protein 2, HVUNKNOWN from Hordeum vulgare subsp vulgare and HSKERAT9 NID from Homo sapiens. Additional 57 proteins were partially identified as involved in the stress response but due to low protein levels, the percentage of matching peptides to these proteins was below the required confidence level. Although these protein identifications were below the confidence level, it is interesting to note that several of the proteins are known stress response proteins, and therefore could serve as potential targets for future investigations. In conclusion, the down and up-regulation of wheat proteins after aphid feeding reported in this study suggest that several signalling pathways are involved in the cereal stress response to aphid feeding. In silico approaches require knowledge or identification of potential proteins whereas 2D and LC/MS can identify numerous proteins still unknown to be involved in specific stress responses. The 2D approach is also limited in that the proteins of interest may be in low abundance and therefore not detected in the gels due to the presence of high abundant proteins. Therefore the best approach to identify proteins and signalling pathways involved in the stress response of wheat to aphid infestation, is the LC/MS/MS approach, as this proved to be the most sensitive and robust, identifying the most proteins with a high degree of confidence.
- Full Text:
Exploring the influence of mindfulness-based stress reduction (MBSR) programmes on participants experience of time, particularly the present (here and now): a case study of Eastern Cape participants
- Authors: Schofield, Lorna
- Date: 2012
- Subjects: Acceptance and commitment therapy , Stress management , Depression, Mental -- Treatment
- Language: English
- Type: Thesis , Masters , M Soc Sc (C Psy)
- Identifier: vital:11611 , http://hdl.handle.net/10353/d1005640
- Description: This study aims to explore the extent to which participating in a Mindfulness-Based Stress Reduction (MBSR) programme may result in shifts in people’s relationship with time, notably whether they become more present-focussed. The eight week MBSR programme advocates mindfulness, which is defined as paying attention on purpose in the present moment without judgement, as a way of reducing stress. The programme has been available in East London since 2009. A case study of eight MBSR programme participants’ experiences using narrative analysis was conducted. Narrative psychology and social constructionism provided the theoretical basis in which our storied lives are located in culturally inscribed narratives, with specific discourses around time and stress. Time discourses tend to pressurise people to believe that it is better to go about daily life at a fast pace, which requires significant hurrying and rushing with pervasive senses of time urgency. Stress discourse locates stress management within individuals. One-on-one semi structured interviews were held so that participants could reflect on their experience of time and the present moment orientation of the programme. Participants’ perceived a shift in how they experienced time with greater awareness of being present-focussed and they identified stress reduction benefits, which included feeling calmer, less panicked and more self-accepting. However, some of the participants maintaining the formal mindfulness practices like the body scan, meditation and mindful movement after the programme often proved difficult, as they were drawn back into their dominant narratives around time which were characterised by busyness, productivity and time scarcity.
- Full Text:
- Authors: Schofield, Lorna
- Date: 2012
- Subjects: Acceptance and commitment therapy , Stress management , Depression, Mental -- Treatment
- Language: English
- Type: Thesis , Masters , M Soc Sc (C Psy)
- Identifier: vital:11611 , http://hdl.handle.net/10353/d1005640
- Description: This study aims to explore the extent to which participating in a Mindfulness-Based Stress Reduction (MBSR) programme may result in shifts in people’s relationship with time, notably whether they become more present-focussed. The eight week MBSR programme advocates mindfulness, which is defined as paying attention on purpose in the present moment without judgement, as a way of reducing stress. The programme has been available in East London since 2009. A case study of eight MBSR programme participants’ experiences using narrative analysis was conducted. Narrative psychology and social constructionism provided the theoretical basis in which our storied lives are located in culturally inscribed narratives, with specific discourses around time and stress. Time discourses tend to pressurise people to believe that it is better to go about daily life at a fast pace, which requires significant hurrying and rushing with pervasive senses of time urgency. Stress discourse locates stress management within individuals. One-on-one semi structured interviews were held so that participants could reflect on their experience of time and the present moment orientation of the programme. Participants’ perceived a shift in how they experienced time with greater awareness of being present-focussed and they identified stress reduction benefits, which included feeling calmer, less panicked and more self-accepting. However, some of the participants maintaining the formal mindfulness practices like the body scan, meditation and mindful movement after the programme often proved difficult, as they were drawn back into their dominant narratives around time which were characterised by busyness, productivity and time scarcity.
- Full Text:
Financial liberalisation and economic growth in South Africa
- Sibanda, Hlanganani Siqondile.
- Authors: Sibanda, Hlanganani Siqondile.
- Date: 2012
- Subjects: Economic development -- South Africa , Monetary policy -- South Africa , Finance -- Management , Capital movements -- South Africa , Free trade -- South Africa , Expenditures, Public
- Language: English
- Type: Thesis , Masters , M Com
- Identifier: vital:11471 , http://hdl.handle.net/10353/d1007131 , Economic development -- South Africa , Monetary policy -- South Africa , Finance -- Management , Capital movements -- South Africa , Free trade -- South Africa , Expenditures, Public
- Description: This study examined the impact of financial liberalisation on economic growth in South Africa. The study used quarterly time series data for the period 1980 to 2010. A vector error correction model was used to determine the short run and long run effects of financial liberalisation on economic growth in South Africa. The other explanatory variables considered in this study were government expenditure, investment ratio, public expenditure on education and trade openness. Results from this study revealed that financial liberalisation, government expenditure and public expenditure on education have a positive impact on economic growth while trade openness negatively affects economic growth in South Africa. Policy recommendations were made using these results.
- Full Text:
- Authors: Sibanda, Hlanganani Siqondile.
- Date: 2012
- Subjects: Economic development -- South Africa , Monetary policy -- South Africa , Finance -- Management , Capital movements -- South Africa , Free trade -- South Africa , Expenditures, Public
- Language: English
- Type: Thesis , Masters , M Com
- Identifier: vital:11471 , http://hdl.handle.net/10353/d1007131 , Economic development -- South Africa , Monetary policy -- South Africa , Finance -- Management , Capital movements -- South Africa , Free trade -- South Africa , Expenditures, Public
- Description: This study examined the impact of financial liberalisation on economic growth in South Africa. The study used quarterly time series data for the period 1980 to 2010. A vector error correction model was used to determine the short run and long run effects of financial liberalisation on economic growth in South Africa. The other explanatory variables considered in this study were government expenditure, investment ratio, public expenditure on education and trade openness. Results from this study revealed that financial liberalisation, government expenditure and public expenditure on education have a positive impact on economic growth while trade openness negatively affects economic growth in South Africa. Policy recommendations were made using these results.
- Full Text:
Lithostratigraphic correlation, mineralogy and geochemistry of the lower manganese orebody at the Kalagadi Manganese Mine in the Northern Cape Province of South Africa
- Authors: Rasmeni, Sonwabile
- Date: 2012
- Subjects: Manganese mines and mining -- South Africa , Manganese ores -- Geology -- South Africa , Mineralogy -- South Africa , Geochemistry -- South Africa
- Language: English
- Type: Thesis , Masters , MSc (Geology)
- Identifier: vital:11526 , http://hdl.handle.net/10353/d1016155 , Manganese mines and mining -- South Africa , Manganese ores -- Geology -- South Africa , Mineralogy -- South Africa , Geochemistry -- South Africa
- Description: The Kalagadi Manganese mine in the Kuruman area of the Northern Cape Province of South Africa contains reserves of Mn ore in excess of 100Mt. Mineralization in the mine lease area is restricted within the Hotazel Formation of the Voȅlwater Subgroup, belonging to the Postmasburg Group, the upper subdivision of the Transvaal Supergroup. Surface topography is characterized by flat lying, undulation with minimal faulting and the ore are slightly metarmophosed. This study investigates the general geology of the mine, lithostratigraphic subdivision and correlation of the economic Lower Manganese Orebody (LMO) of the Kalagadi Manganese Mine in order to guide mining plan and operations once the mine is fully commissioned. At the commencement of this study, Kalagadi Manganese mine was a project under exploration with no specific geology of the mine lease area and no lithostratigraphic subdivision. The study also aimed determining the extent of lithostratigraphic correlation between the LMO economic orebodies of the Kalagadi Manganese mine with that of underground Gloria and open-pit Mamatwan mines. Four methods including petrographic microscope, Scanning electron Microscope (SEM), X-ray diffraction (XRD) and X-ray fluorescence (XRF) analyses were applied mainly for the mineral identification, chemical composition and ore characterization of the Lower Manganese Orebody (LMO) at Kalagadi Manganese mine. The results of this study indicates the following: (1) Eleven textural distinct zones with economic zones restricted to the middle while the lower grade zones are confined to the top and bottom of the LMO; (2) The economic zones, comprising of Y, M, C and N subzones attain an average thickness of 10 m and are graded at an average of 40% Mn while the Mn/Fe ratio varies from 6 to 9; (3) The most economic zones are M and N subzones which are mostly characterized by oxidized ovoids and laminae, a characteristic applicable even to other zones of economic interest; (4) Braunite is the main mineral of the manganese ore and is often integrown with kutnahorite and other minerals (hematite, hausmannite, Mg-calcite, calcite, jacobsite, serpentine and garnet) which are present in variable amounts; (5) The Mg-rich calcite (Ca, Mg)CO3 is the second dominant manganese carbonate mineral and it corresponds to elevated MgO concentration and is often associated with marine environment. The occurrence of the Mgcalcite is not common in the manganese ore of this area except for the Mn-calcite, which was not determined by XRD analyses in this study; (6) MnO is the most abundant major oxide in the manganese ore while other major oxides present in decreasing order of abundance are CaO, SiO2, Fe2O3, and MgO. The oxides TiO2, Na2O, K2O, Al2O3, and Cr2O3 are depleted and are mostly 0.01wt% and 0.001wt% respectively while P2O5 concentrations are low ranging from 0.02wt% to 0.3wt%. The trace element concentrations of Ba, Zn and Sr in most borehole samples are slightly elevated ranging from 100ppm to 3.9% (36000pm) while Co, Cu, Ni, Y, As, Zr, V and La rarely exceed 50ppm. The enrichments of Cu, Zn, Ni, Co and V that are commonly associated with volcanogenic hydrothermal input in chemicals may reach up to 70ppm; (7) The mineralogical and geochemical characteristics of the manganese ore in the Kalagadi Manganese mine lease area are similar to that of Low-Grade Mamatwan-Type ore. The cyclicity (Banded Iron Formation ↔ Hematite lutite ↔ braunite lutite) and alternation of manganese and iron formation have been confirmed; and (8) The oxygen δ18O isotope values (18‰ to 22‰) indicate a slight influence of metamorphism of the manganese ore. No positive correlation exists between δ13C vs δ18O values and Mn vs δ13C values. Such observations indicate minimal action of organic carbon during manganese precipitation where the organic matter was oxidized and manganese content reduced. On the other hand, the manganese carbonates (CaO) are positively correlated with carbon isotope, this indicates diagenetic alteration and the involvement of biogenic carbonate during the formation of manganese carbonates. It is concluded that the lithostratigraphic subdivision at Kalagadi Manganese mine is best correlated physically, mineralogically and geochemically with that of Gloria mine operating in the Low Grade Mamatwan - Type ore while correlation with an open-pit Mamatwan mine is also valid.
- Full Text:
- Authors: Rasmeni, Sonwabile
- Date: 2012
- Subjects: Manganese mines and mining -- South Africa , Manganese ores -- Geology -- South Africa , Mineralogy -- South Africa , Geochemistry -- South Africa
- Language: English
- Type: Thesis , Masters , MSc (Geology)
- Identifier: vital:11526 , http://hdl.handle.net/10353/d1016155 , Manganese mines and mining -- South Africa , Manganese ores -- Geology -- South Africa , Mineralogy -- South Africa , Geochemistry -- South Africa
- Description: The Kalagadi Manganese mine in the Kuruman area of the Northern Cape Province of South Africa contains reserves of Mn ore in excess of 100Mt. Mineralization in the mine lease area is restricted within the Hotazel Formation of the Voȅlwater Subgroup, belonging to the Postmasburg Group, the upper subdivision of the Transvaal Supergroup. Surface topography is characterized by flat lying, undulation with minimal faulting and the ore are slightly metarmophosed. This study investigates the general geology of the mine, lithostratigraphic subdivision and correlation of the economic Lower Manganese Orebody (LMO) of the Kalagadi Manganese Mine in order to guide mining plan and operations once the mine is fully commissioned. At the commencement of this study, Kalagadi Manganese mine was a project under exploration with no specific geology of the mine lease area and no lithostratigraphic subdivision. The study also aimed determining the extent of lithostratigraphic correlation between the LMO economic orebodies of the Kalagadi Manganese mine with that of underground Gloria and open-pit Mamatwan mines. Four methods including petrographic microscope, Scanning electron Microscope (SEM), X-ray diffraction (XRD) and X-ray fluorescence (XRF) analyses were applied mainly for the mineral identification, chemical composition and ore characterization of the Lower Manganese Orebody (LMO) at Kalagadi Manganese mine. The results of this study indicates the following: (1) Eleven textural distinct zones with economic zones restricted to the middle while the lower grade zones are confined to the top and bottom of the LMO; (2) The economic zones, comprising of Y, M, C and N subzones attain an average thickness of 10 m and are graded at an average of 40% Mn while the Mn/Fe ratio varies from 6 to 9; (3) The most economic zones are M and N subzones which are mostly characterized by oxidized ovoids and laminae, a characteristic applicable even to other zones of economic interest; (4) Braunite is the main mineral of the manganese ore and is often integrown with kutnahorite and other minerals (hematite, hausmannite, Mg-calcite, calcite, jacobsite, serpentine and garnet) which are present in variable amounts; (5) The Mg-rich calcite (Ca, Mg)CO3 is the second dominant manganese carbonate mineral and it corresponds to elevated MgO concentration and is often associated with marine environment. The occurrence of the Mgcalcite is not common in the manganese ore of this area except for the Mn-calcite, which was not determined by XRD analyses in this study; (6) MnO is the most abundant major oxide in the manganese ore while other major oxides present in decreasing order of abundance are CaO, SiO2, Fe2O3, and MgO. The oxides TiO2, Na2O, K2O, Al2O3, and Cr2O3 are depleted and are mostly 0.01wt% and 0.001wt% respectively while P2O5 concentrations are low ranging from 0.02wt% to 0.3wt%. The trace element concentrations of Ba, Zn and Sr in most borehole samples are slightly elevated ranging from 100ppm to 3.9% (36000pm) while Co, Cu, Ni, Y, As, Zr, V and La rarely exceed 50ppm. The enrichments of Cu, Zn, Ni, Co and V that are commonly associated with volcanogenic hydrothermal input in chemicals may reach up to 70ppm; (7) The mineralogical and geochemical characteristics of the manganese ore in the Kalagadi Manganese mine lease area are similar to that of Low-Grade Mamatwan-Type ore. The cyclicity (Banded Iron Formation ↔ Hematite lutite ↔ braunite lutite) and alternation of manganese and iron formation have been confirmed; and (8) The oxygen δ18O isotope values (18‰ to 22‰) indicate a slight influence of metamorphism of the manganese ore. No positive correlation exists between δ13C vs δ18O values and Mn vs δ13C values. Such observations indicate minimal action of organic carbon during manganese precipitation where the organic matter was oxidized and manganese content reduced. On the other hand, the manganese carbonates (CaO) are positively correlated with carbon isotope, this indicates diagenetic alteration and the involvement of biogenic carbonate during the formation of manganese carbonates. It is concluded that the lithostratigraphic subdivision at Kalagadi Manganese mine is best correlated physically, mineralogically and geochemically with that of Gloria mine operating in the Low Grade Mamatwan - Type ore while correlation with an open-pit Mamatwan mine is also valid.
- Full Text:
Parent characterization of quality protein maize (Zea mays L.) and combining ability for tolerance to drought stress
- Authors: Pfunde, Cleopatra Nyaradzo
- Date: 2012
- Subjects: Corn -- Quality , Corn as food , Corn -- Effect of stress on , Corn -- Effect of drought on , Cluster analysis , Crops -- Effect of drought on , Corn -- Drought tolerance , Corn -- Breeding , Crops -- Drought tolerance
- Language: English
- Type: Thesis , Masters , MSc Agric (Crop Science)
- Identifier: vital:11869 , http://hdl.handle.net/10353/d1007536 , Corn -- Quality , Corn as food , Corn -- Effect of stress on , Corn -- Effect of drought on , Cluster analysis , Crops -- Effect of drought on , Corn -- Drought tolerance , Corn -- Breeding , Crops -- Drought tolerance
- Description: Quality protein maize (QPM) has enhanced levels of two essential amino acids, lysine and tryptophan compared to normal maize. This makes QPM an important cereal crop in communities where maize is a staple crop. The main abiotic factor to QPM production is drought stress. Little information is available on the effect of drought stress on QPM. Therefore, the objectives of this study were to: (i) conduct diversity analysis of QPM inbred lines using morpho-agronomic and simple sequence repeat markers, (ii) screen available QPM inbred lines and F1 progeny for tolerance to seedling drought stress, (iii) determine the combining ability and type of gene action of QPM inbred lines for tolerance to seedling drought stress, grain yield and endosperm modification. The study was conducted in South Africa, at the University of Fort Hare. Morphological characterisation of 21 inbred lines was done using quantitative and qualitative traits. A randomised complete block design with three replicates was used for characterizing the inbred lines in the field. Genstat statistical software, version 12 (Genstat ®, 2009) was used for analysis of variance (ANOVA) and descriptive statistics. Analysis of variance was performed on all quantitative data for morphological traits. Data for qualitative traits was tabulated in their nominal classes. Traits that contributed most to the variation were days to anthesis, days to silking, anthesis-silking interval, plant height, number of kernel rows, ear length and grain yield. Cluster analysis grouped the inbred lines into three main clusters. The first cluster was characterised by tall and average yielding lines, while the second cluster showed the least anthesis-silking interval, and had the highest yield. Cluster three consisted of lines that were early maturing, but were the least yielding. Genetic distances between maize inbred lines were quantified by using 27 simple sequence repeat markers. The genetic distances between genotypes was computed using Roger’s (1972) genetic distances. Cluster analysis was then carried out using the neighbour-joining tree method using Power Marker software version 3.25. A dendrogram generated from the genetic study of the inbred lines revealed three groups that concurred with expectations based upon pedigree data. These groups were not identical to the groups generated using morpho-agronomic characterisation. Twenty one QPM inbred lines were crossed using a North Carolina design II mating scheme. These were divided into seven sets, each with three inbred lines. The three inbred lines in one set were used as females and crossed with three inbred lines in another set consisting of males. Each inbred line was used as a female in one set, and as a male in a second set. Sixty three hybrids (7 sets x 9 hybrids) were formed and evaluated in October 2011, using a 6x8 alpha-lattice incomplete block design with three replicates under glasshouse and optimum field conditions. A randomised complete block design with three replicates was used for the 21 parental inbred lines. Traits recorded for the glasshouse study were, canopy temperature, chlorophyll content, leaf roll, stem diameter, plant height, leaf number, leaf area, fresh and dry root and shoot weights. Data for the various traits for each environment, 25 percent (stress treatment) and 75 percent (non-stress) of field capacity, were subjected to analysis of variance using the unbalanced treatment design in Genstat statistical package Edition 12. Where varietal differences were found, means were separated using Tukey’s test. Genetic analyses for grain yield and agronomic traits were performed using a fixed effects model in JMP 10 following Residual Maximum Likelihood procedure (REML). From the results, inbred lines that were not previously classified into heterotic groups and drought tolerance categories were classified based on their total dry weight performance and drought susceptibility index. Inbred lines L18, L9, L8, L6 and L3, in order of their drought tolerance index were the best performers under greenhouse conditions and could be recommended for breeding new varieties that are tolerant to seedling drought stress. Evaluation of maize seedlings tolerant to drought stress under glasshouse conditions revealed that cross combination L18 x L11 was drought tolerant, while cross L20 x L7 was susceptible. Total dry weight was used as the major criteria for classifying F1 maize seedlings as being resistant or susceptible. General combining ability effects accounted for 67.43 percent of the genetic variation for total dry weight, while specific combining ability effects contributed 37.57 percent. This indicated that additive gene effects were more important than non-additive gene action in controlling this trait. In the field study (non-drought), the experimental design was a 6x8 alpha lattice incomplete block design with three replicates. On an adjacent field a randomised complete block design with three replicates was used to evaluate the parental inbred lines. The following variables were recorded: plant height, ear height, ears per plant, endosperm modification, days to silking and days to anthesis, anthesis-silking interval, number of kernels per row, number of rows per ear and grain yield. General analyses for the incomplete lattice block design and randomised complete block design for hybrid and inbred data respectively were performed using JMP 10 statistical software. Means were separated using the Tukey's test. Genetic analyses of data for grain yield and agronomic traits were conducted using a fixed effects model using REML in JMP 10. The importance of both GCA (51 percent) and SCA (49 percent) was observed for grain yield. A preponderance of GCA existed for ear height, days to anthesis, anthesis-silking interval, ears per plant and number of kernels per row, indicating that predominantly, additive gene effects controlled hybrid performance under optimum field conditions. The highest heritability was observed for days to silking (48.27 percent) suggesting that yield could be improved through selection for this trait. Under field conditions, variation in time to maturity was observed. This implies that these inbred lines can be recommended for utilisation in different agro-ecologies. Early maturing lines such as L18 can be used to introduce earliness in local cultivars, while early maturing single crosses such as L18 x L2, L5 x L9, L3 x L4 and L2 x L21 could be recommended for maize growers in drought prone areas such as the former Ciskei. Single crosses L18xL11, L16xL18, L8xL21 and L9xL6 had good tolerance to seedling drought stress. On the other hand, single crosses L18xL11 and L11xL13 had high grain yield and good endosperm modification. All these single crosses could be recommended for commercial production after evaluation across locations in the Eastern Cape Province. Alternatively they can be crossed with other superior inbreds to generate three or four way hybrids, which could then be evaluated for potential use by farmers in the Eastern Cape.
- Full Text:
- Authors: Pfunde, Cleopatra Nyaradzo
- Date: 2012
- Subjects: Corn -- Quality , Corn as food , Corn -- Effect of stress on , Corn -- Effect of drought on , Cluster analysis , Crops -- Effect of drought on , Corn -- Drought tolerance , Corn -- Breeding , Crops -- Drought tolerance
- Language: English
- Type: Thesis , Masters , MSc Agric (Crop Science)
- Identifier: vital:11869 , http://hdl.handle.net/10353/d1007536 , Corn -- Quality , Corn as food , Corn -- Effect of stress on , Corn -- Effect of drought on , Cluster analysis , Crops -- Effect of drought on , Corn -- Drought tolerance , Corn -- Breeding , Crops -- Drought tolerance
- Description: Quality protein maize (QPM) has enhanced levels of two essential amino acids, lysine and tryptophan compared to normal maize. This makes QPM an important cereal crop in communities where maize is a staple crop. The main abiotic factor to QPM production is drought stress. Little information is available on the effect of drought stress on QPM. Therefore, the objectives of this study were to: (i) conduct diversity analysis of QPM inbred lines using morpho-agronomic and simple sequence repeat markers, (ii) screen available QPM inbred lines and F1 progeny for tolerance to seedling drought stress, (iii) determine the combining ability and type of gene action of QPM inbred lines for tolerance to seedling drought stress, grain yield and endosperm modification. The study was conducted in South Africa, at the University of Fort Hare. Morphological characterisation of 21 inbred lines was done using quantitative and qualitative traits. A randomised complete block design with three replicates was used for characterizing the inbred lines in the field. Genstat statistical software, version 12 (Genstat ®, 2009) was used for analysis of variance (ANOVA) and descriptive statistics. Analysis of variance was performed on all quantitative data for morphological traits. Data for qualitative traits was tabulated in their nominal classes. Traits that contributed most to the variation were days to anthesis, days to silking, anthesis-silking interval, plant height, number of kernel rows, ear length and grain yield. Cluster analysis grouped the inbred lines into three main clusters. The first cluster was characterised by tall and average yielding lines, while the second cluster showed the least anthesis-silking interval, and had the highest yield. Cluster three consisted of lines that were early maturing, but were the least yielding. Genetic distances between maize inbred lines were quantified by using 27 simple sequence repeat markers. The genetic distances between genotypes was computed using Roger’s (1972) genetic distances. Cluster analysis was then carried out using the neighbour-joining tree method using Power Marker software version 3.25. A dendrogram generated from the genetic study of the inbred lines revealed three groups that concurred with expectations based upon pedigree data. These groups were not identical to the groups generated using morpho-agronomic characterisation. Twenty one QPM inbred lines were crossed using a North Carolina design II mating scheme. These were divided into seven sets, each with three inbred lines. The three inbred lines in one set were used as females and crossed with three inbred lines in another set consisting of males. Each inbred line was used as a female in one set, and as a male in a second set. Sixty three hybrids (7 sets x 9 hybrids) were formed and evaluated in October 2011, using a 6x8 alpha-lattice incomplete block design with three replicates under glasshouse and optimum field conditions. A randomised complete block design with three replicates was used for the 21 parental inbred lines. Traits recorded for the glasshouse study were, canopy temperature, chlorophyll content, leaf roll, stem diameter, plant height, leaf number, leaf area, fresh and dry root and shoot weights. Data for the various traits for each environment, 25 percent (stress treatment) and 75 percent (non-stress) of field capacity, were subjected to analysis of variance using the unbalanced treatment design in Genstat statistical package Edition 12. Where varietal differences were found, means were separated using Tukey’s test. Genetic analyses for grain yield and agronomic traits were performed using a fixed effects model in JMP 10 following Residual Maximum Likelihood procedure (REML). From the results, inbred lines that were not previously classified into heterotic groups and drought tolerance categories were classified based on their total dry weight performance and drought susceptibility index. Inbred lines L18, L9, L8, L6 and L3, in order of their drought tolerance index were the best performers under greenhouse conditions and could be recommended for breeding new varieties that are tolerant to seedling drought stress. Evaluation of maize seedlings tolerant to drought stress under glasshouse conditions revealed that cross combination L18 x L11 was drought tolerant, while cross L20 x L7 was susceptible. Total dry weight was used as the major criteria for classifying F1 maize seedlings as being resistant or susceptible. General combining ability effects accounted for 67.43 percent of the genetic variation for total dry weight, while specific combining ability effects contributed 37.57 percent. This indicated that additive gene effects were more important than non-additive gene action in controlling this trait. In the field study (non-drought), the experimental design was a 6x8 alpha lattice incomplete block design with three replicates. On an adjacent field a randomised complete block design with three replicates was used to evaluate the parental inbred lines. The following variables were recorded: plant height, ear height, ears per plant, endosperm modification, days to silking and days to anthesis, anthesis-silking interval, number of kernels per row, number of rows per ear and grain yield. General analyses for the incomplete lattice block design and randomised complete block design for hybrid and inbred data respectively were performed using JMP 10 statistical software. Means were separated using the Tukey's test. Genetic analyses of data for grain yield and agronomic traits were conducted using a fixed effects model using REML in JMP 10. The importance of both GCA (51 percent) and SCA (49 percent) was observed for grain yield. A preponderance of GCA existed for ear height, days to anthesis, anthesis-silking interval, ears per plant and number of kernels per row, indicating that predominantly, additive gene effects controlled hybrid performance under optimum field conditions. The highest heritability was observed for days to silking (48.27 percent) suggesting that yield could be improved through selection for this trait. Under field conditions, variation in time to maturity was observed. This implies that these inbred lines can be recommended for utilisation in different agro-ecologies. Early maturing lines such as L18 can be used to introduce earliness in local cultivars, while early maturing single crosses such as L18 x L2, L5 x L9, L3 x L4 and L2 x L21 could be recommended for maize growers in drought prone areas such as the former Ciskei. Single crosses L18xL11, L16xL18, L8xL21 and L9xL6 had good tolerance to seedling drought stress. On the other hand, single crosses L18xL11 and L11xL13 had high grain yield and good endosperm modification. All these single crosses could be recommended for commercial production after evaluation across locations in the Eastern Cape Province. Alternatively they can be crossed with other superior inbreds to generate three or four way hybrids, which could then be evaluated for potential use by farmers in the Eastern Cape.
- Full Text:
Prevalence, seasonal trends and incidences of cattle tuberculosis and brucellosis in the Cacadu municipality, Eastern Cape, South Africa
- Authors: Nombebe, Thobeka
- Date: 2012
- Subjects: Tuberculosis in cattle -- South Africa -- Eastern Cape , Brucellosis in animals -- South Africa -- Eastern Cape , Dairy farms -- South Africa -- Eastern Cape , Mycobacterium tuberculosis -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc (Biostatistics and Epidemiology)
- Identifier: vital:11783 , http://hdl.handle.net/10353/d1016200 , Tuberculosis in cattle -- South Africa -- Eastern Cape , Brucellosis in animals -- South Africa -- Eastern Cape , Dairy farms -- South Africa -- Eastern Cape , Mycobacterium tuberculosis -- South Africa -- Eastern Cape
- Description: A cross-sectional study was conducted from February 2011 to August 2012 to investigate the status and identify risk factors for Bovine Tuberculosis (BTB) and cattle Brucellosis. A total of 1277 cattle from 6 selected dairy farms were tested. The farms were purposively selected on suspected risk. Samples were analysed using Rose Bengal Test (RBPT) and Complement Fixation Test (CFT) for Brucellosis and Comparative Intradermal Tuberculin Test (CITT) for BTB. The results revealed the overall prevalence of 1.6% for Brucellosis and no BTB was found. Logistic regression analysis revealed that age of cattle, herd size and number of calves a cow has had significant association with Brucellosis with p-values 0.0071, 0.0490 and 0.000 respectively. The role of location (p>0.05), gender (p>0.05) and breed (p>0.05) in the occurrence of the disease was not statistically significant at α=0.05, although higher rates were obtained in females and Jersey breed. Questionnaires were also administered to 47 individuals a total of 12 females and 35 males. Most respondents were not aware about cattle brucellosis and cattle tuberculosis. Consumption of raw or unpasteurized milk still occurs with 74.75% of respondents revealed.
- Full Text:
- Authors: Nombebe, Thobeka
- Date: 2012
- Subjects: Tuberculosis in cattle -- South Africa -- Eastern Cape , Brucellosis in animals -- South Africa -- Eastern Cape , Dairy farms -- South Africa -- Eastern Cape , Mycobacterium tuberculosis -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc (Biostatistics and Epidemiology)
- Identifier: vital:11783 , http://hdl.handle.net/10353/d1016200 , Tuberculosis in cattle -- South Africa -- Eastern Cape , Brucellosis in animals -- South Africa -- Eastern Cape , Dairy farms -- South Africa -- Eastern Cape , Mycobacterium tuberculosis -- South Africa -- Eastern Cape
- Description: A cross-sectional study was conducted from February 2011 to August 2012 to investigate the status and identify risk factors for Bovine Tuberculosis (BTB) and cattle Brucellosis. A total of 1277 cattle from 6 selected dairy farms were tested. The farms were purposively selected on suspected risk. Samples were analysed using Rose Bengal Test (RBPT) and Complement Fixation Test (CFT) for Brucellosis and Comparative Intradermal Tuberculin Test (CITT) for BTB. The results revealed the overall prevalence of 1.6% for Brucellosis and no BTB was found. Logistic regression analysis revealed that age of cattle, herd size and number of calves a cow has had significant association with Brucellosis with p-values 0.0071, 0.0490 and 0.000 respectively. The role of location (p>0.05), gender (p>0.05) and breed (p>0.05) in the occurrence of the disease was not statistically significant at α=0.05, although higher rates were obtained in females and Jersey breed. Questionnaires were also administered to 47 individuals a total of 12 females and 35 males. Most respondents were not aware about cattle brucellosis and cattle tuberculosis. Consumption of raw or unpasteurized milk still occurs with 74.75% of respondents revealed.
- Full Text:
Re-tracing representations and identities in twentieth century South African and African photography: Joseph Denfield, regimes of seeing and alternative visual histories
- Authors: Mnyaka, Phindezwa Elizabeth
- Date: 2012
- Subjects: Historical museums -- South Africa -- Eastern Cape , Natural history , Photography -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD (History)
- Identifier: vital:11536 , http://hdl.handle.net/10353/540 , Historical museums -- South Africa -- Eastern Cape , Natural history , Photography -- South Africa
- Description: The thesis examines the photographic collection of Joseph Denfield, an archivist and historian who experimented with photography over a twenty-year period. The study is located within the field of critical visual studies that focuses on historical photography in its depiction of identities and groups in the context of social change. The thesis pays attention to the manner and extent to which Denfield participated in regional visual economies at various moments during his photographic career in order to establish his contribution towards a visual history in Africa and more broadly Southern Africa. It follows Denfield’s career trajectory chronologically. It begins with a study of his photographic work in Nigeria which was oriented around so-called ‘pagan tribes’ and which was framed within the discourse of ethnography. It then pays attention to his growth as an artist in photography that resulted from years of exhibiting in salons. I read these photographs and texts in relation to his earlier work in Nigeria given the extent to which he drew on anthropological discourses. It is through his involvement with photographic art circles that Denfield developed as a historian as a result of his research into the history of photography and regional visual histories. This took the form of both unearthing historical photographs as well as photographing historical sites to construct the past in particular ways through the visual. At each stage he translated these histories into public forms of representation and power thus he figures among a small group of ‘colonial’ photographers that shaped the visual economy of Southern Africa. Through a detailed study of his work, the thesis thus aims to re-think through new dimensions of visual culture.
- Full Text:
- Authors: Mnyaka, Phindezwa Elizabeth
- Date: 2012
- Subjects: Historical museums -- South Africa -- Eastern Cape , Natural history , Photography -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD (History)
- Identifier: vital:11536 , http://hdl.handle.net/10353/540 , Historical museums -- South Africa -- Eastern Cape , Natural history , Photography -- South Africa
- Description: The thesis examines the photographic collection of Joseph Denfield, an archivist and historian who experimented with photography over a twenty-year period. The study is located within the field of critical visual studies that focuses on historical photography in its depiction of identities and groups in the context of social change. The thesis pays attention to the manner and extent to which Denfield participated in regional visual economies at various moments during his photographic career in order to establish his contribution towards a visual history in Africa and more broadly Southern Africa. It follows Denfield’s career trajectory chronologically. It begins with a study of his photographic work in Nigeria which was oriented around so-called ‘pagan tribes’ and which was framed within the discourse of ethnography. It then pays attention to his growth as an artist in photography that resulted from years of exhibiting in salons. I read these photographs and texts in relation to his earlier work in Nigeria given the extent to which he drew on anthropological discourses. It is through his involvement with photographic art circles that Denfield developed as a historian as a result of his research into the history of photography and regional visual histories. This took the form of both unearthing historical photographs as well as photographing historical sites to construct the past in particular ways through the visual. At each stage he translated these histories into public forms of representation and power thus he figures among a small group of ‘colonial’ photographers that shaped the visual economy of Southern Africa. Through a detailed study of his work, the thesis thus aims to re-think through new dimensions of visual culture.
- Full Text:
Silenced women of John Steinbeck's dustbowl trilogy
- Authors: Burri, Stella Teresia
- Date: 2012
- Subjects: Steinbeck, John, 1902-1968 -- Criticism and interpretation , Steinbeck, John, 1902-1968 -- Grapes of wrath , Steinbeck, John, 1902-1968 -- Political and social views , Steinbeck, John, 1902-1968 -- Appreciation
- Language: English
- Type: Thesis , Masters , MA (English)
- Identifier: vital:11838 , http://hdl.handle.net/10353/d1005643 , Steinbeck, John, 1902-1968 -- Criticism and interpretation , Steinbeck, John, 1902-1968 -- Grapes of wrath , Steinbeck, John, 1902-1968 -- Political and social views , Steinbeck, John, 1902-1968 -- Appreciation
- Description: The primary aim of this project is to examine selected works by John Steinbeck, a significant American writer. Through a close contextual and textual analysis of Steinbeck’s Dustbowl Trilogy, which consists of the novels In Dubious Battle, Of Mice and Men, and The Grapes of Wrath, this project will interrogate Steinbeck’s contribution to the silencing of women and their inferior placement in their society and determine the extent to which Steinbeck promotes patriarchal ideology through his literature. A close examination of the modernist era in which these novels were written will provide the method of interrogating Steinbeck’s portrayal of women’s situation during the Depression and determine whether it is a reflection of the reality of women’s situation at that time given the political and environmental factors of the 1930s. The theories of various feminist critics, including Simone de Beauvoir, Judith Butler, Gayle Rubin, Luce Irigaray, Sherry Ortner, and Sandra Gilbert and Susan Gubar will be explored in order to elucidate the author’s treatment of the female characters and determine the extent to which patriarchal ideology is embedded in his writing. A brief examination of some of his contemporaries, namely F. Scott Fitzgerald, William Faulkner and Ernest Hemingway, will reveal the general treatment of women in male authored modernist literature and determine the extent to which Steinbeck’s female subjugation is representative.
- Full Text:
- Authors: Burri, Stella Teresia
- Date: 2012
- Subjects: Steinbeck, John, 1902-1968 -- Criticism and interpretation , Steinbeck, John, 1902-1968 -- Grapes of wrath , Steinbeck, John, 1902-1968 -- Political and social views , Steinbeck, John, 1902-1968 -- Appreciation
- Language: English
- Type: Thesis , Masters , MA (English)
- Identifier: vital:11838 , http://hdl.handle.net/10353/d1005643 , Steinbeck, John, 1902-1968 -- Criticism and interpretation , Steinbeck, John, 1902-1968 -- Grapes of wrath , Steinbeck, John, 1902-1968 -- Political and social views , Steinbeck, John, 1902-1968 -- Appreciation
- Description: The primary aim of this project is to examine selected works by John Steinbeck, a significant American writer. Through a close contextual and textual analysis of Steinbeck’s Dustbowl Trilogy, which consists of the novels In Dubious Battle, Of Mice and Men, and The Grapes of Wrath, this project will interrogate Steinbeck’s contribution to the silencing of women and their inferior placement in their society and determine the extent to which Steinbeck promotes patriarchal ideology through his literature. A close examination of the modernist era in which these novels were written will provide the method of interrogating Steinbeck’s portrayal of women’s situation during the Depression and determine whether it is a reflection of the reality of women’s situation at that time given the political and environmental factors of the 1930s. The theories of various feminist critics, including Simone de Beauvoir, Judith Butler, Gayle Rubin, Luce Irigaray, Sherry Ortner, and Sandra Gilbert and Susan Gubar will be explored in order to elucidate the author’s treatment of the female characters and determine the extent to which patriarchal ideology is embedded in his writing. A brief examination of some of his contemporaries, namely F. Scott Fitzgerald, William Faulkner and Ernest Hemingway, will reveal the general treatment of women in male authored modernist literature and determine the extent to which Steinbeck’s female subjugation is representative.
- Full Text:
The competitiveness of the South African citrus industry in the face of the changing global health and environmental standards
- Authors: Ndou, Portia
- Date: 2012
- Subjects: Citrus fruit industry -- South Africa , Food industry and trade -- Safety regulations , Agricultural industries -- Safety regulations , Food -- Safety measures -- International cooperation , Export marketing -- Law and legislation -- South Africa , Competition, International
- Language: English
- Type: Thesis , Doctoral , PhD (Agricultural Economics)
- Identifier: vital:11162 , http://hdl.handle.net/10353/477 , Citrus fruit industry -- South Africa , Food industry and trade -- Safety regulations , Agricultural industries -- Safety regulations , Food -- Safety measures -- International cooperation , Export marketing -- Law and legislation -- South Africa , Competition, International
- Description: In recent years, concern about food safety linked to health issues has seen a rise in private food safety standards in addition to the regulations set by the Food and Agriculture Organisation (FAO) in collaboration with the World Health Organisation (WHO). These have presented challenges to producers and exporters of agricultural food products especially the producers of fresh fruits and vegetables. In spite of the food safety-linked challenges from the demand side, the vast range of business-environment forces pose equally formidable challenges that negatively impact on the exporting industries’ ability to maintain or improve their market shares and their ability to compete in world markets. The objective of this study was therefore to establish the competitiveness of the South African citrus industry in the international markets within this prevailing scenario. Due to the diversity of the definitions of competitiveness as a concept, this study formulated the following working definition: “the ability to create, deliver and maintain value and constant market share through strategic management of the industrial environment or competitiveness drivers”. This was based on the understanding that the international market shares of an industry are a function of forces in the business environment which range from intra-industry, external and national as well as the international elements. The unit of analysis were the citrus producers engaged in export of their products and the study made use of 151 responses by producers. The study adopted a five-step approach to the analysis of the performance of the South African citrus industry in the global markets, starting with the analysis of the Constant Market Share (CMS) of the South African citrus industry in various world markets, establishing the impact of the business environmental factors upon competitiveness, establishing the costs of compliance with private food safety standards, determining the non-price benefits of compliance with the standards, as well as highlighting the strategies for enhancing long-term competitiveness of the industry in the international markets. South Africa is one of the top three countries dominating the citrus fruit export market. Since its entry into the citrus fruit exports market in the 1900s, the industry has sustained its activity in the international market. The Constant Market Share Analysis shows that, amidst the challenges on the international market side, and the changes in the business environment, over much of which the industry has limited control and influence, the industry has maintained its competitive advantage in several markets. The CMS shows that South Africa’s lemons are competitive in America. Despite a negative trend, the South African grapefruit has been competitive in France, Greece, Italy, the Netherlands and Spain. Oranges have been competitive in the Greece, Italy, Portugal, UK, Asian and Northern Europe markets. Competitiveness in these markets has been due to the inherent competitiveness of the industry. Competitiveness in such markets as the Middle East has been attributed to the relatively rapid growth of these markets. The South African citrus industry has similarly undergone many major processes of transformation. The business environmental factors influencing its performance have ranged reform to the challenges beyond the country’s borders. These factors directly and indirectly affect the performance of the industry in the export market. They have influenced the flow of fruits into different international destinations. Of major concern are the food safety and private standards. Challenges in traditional markets as well as opportunities presented by demand from newly emerging citrus consuming nations have seen a diversification in the marketing of the South African citrus. The intensity of competition in the global market is reflected by the fluctuations in the market shares in different markets as well as the increase and fluctuations of fruit rejection rates in some lucrative markets such as America. A combination of challenging national environmental forces and stringent demand conditions negatively impact on revenues especially from markets characterised by price competitiveness. This study identified cost of production, foreign market support systems, adaptability, worker skills, challenges of management in an international environment and government policies such as labour and trade policies as some of the most influential obstacles to competitiveness. Some of the most competiveness-enhancing factors were market availability, market size, market information, market growth and the availability of research institutions. However, compliance with private standards still poses a challenge to the exporters. The different performance levels of the industry in various markets prove the dissimilarity of the demand conditions in the global market. These are supported by the negative influence associated with the foreign market support regimes as well as the challenges associated with compliance with private food safety standards. While market availability, market growth, market information and size were identified as enhancing competitiveness, the fluctuations and inconsistencies in the competitiveness of the industry in different foreign markets require more than finding markets. Resource allocation by both the government and the industry may need to take into account the off-setting of the national challenges and support of farmers faced with distorted and unfair international playing fields. Otherwise, market availability is not a challenge for the industry save meeting the specifications therewith as well as price competitiveness which is unattainable for the South African citrus producers faced with high production costs. For the purposes of further study, it is recommended that account should be taken of all the products marketed by the industry (including processed products such as fruit juices) in order to have a whole picture of the competitiveness of the industry in the international market. This study also proffers a new theoretical framework for the analysis of the business environment for the citrus industry and other agro-businesses. This framework takes into account the indispensability of the food safety standards and measures as well as the diversity of the global consumer and the non-negotiability of food trade for the sustenance of the growing population.
- Full Text:
- Authors: Ndou, Portia
- Date: 2012
- Subjects: Citrus fruit industry -- South Africa , Food industry and trade -- Safety regulations , Agricultural industries -- Safety regulations , Food -- Safety measures -- International cooperation , Export marketing -- Law and legislation -- South Africa , Competition, International
- Language: English
- Type: Thesis , Doctoral , PhD (Agricultural Economics)
- Identifier: vital:11162 , http://hdl.handle.net/10353/477 , Citrus fruit industry -- South Africa , Food industry and trade -- Safety regulations , Agricultural industries -- Safety regulations , Food -- Safety measures -- International cooperation , Export marketing -- Law and legislation -- South Africa , Competition, International
- Description: In recent years, concern about food safety linked to health issues has seen a rise in private food safety standards in addition to the regulations set by the Food and Agriculture Organisation (FAO) in collaboration with the World Health Organisation (WHO). These have presented challenges to producers and exporters of agricultural food products especially the producers of fresh fruits and vegetables. In spite of the food safety-linked challenges from the demand side, the vast range of business-environment forces pose equally formidable challenges that negatively impact on the exporting industries’ ability to maintain or improve their market shares and their ability to compete in world markets. The objective of this study was therefore to establish the competitiveness of the South African citrus industry in the international markets within this prevailing scenario. Due to the diversity of the definitions of competitiveness as a concept, this study formulated the following working definition: “the ability to create, deliver and maintain value and constant market share through strategic management of the industrial environment or competitiveness drivers”. This was based on the understanding that the international market shares of an industry are a function of forces in the business environment which range from intra-industry, external and national as well as the international elements. The unit of analysis were the citrus producers engaged in export of their products and the study made use of 151 responses by producers. The study adopted a five-step approach to the analysis of the performance of the South African citrus industry in the global markets, starting with the analysis of the Constant Market Share (CMS) of the South African citrus industry in various world markets, establishing the impact of the business environmental factors upon competitiveness, establishing the costs of compliance with private food safety standards, determining the non-price benefits of compliance with the standards, as well as highlighting the strategies for enhancing long-term competitiveness of the industry in the international markets. South Africa is one of the top three countries dominating the citrus fruit export market. Since its entry into the citrus fruit exports market in the 1900s, the industry has sustained its activity in the international market. The Constant Market Share Analysis shows that, amidst the challenges on the international market side, and the changes in the business environment, over much of which the industry has limited control and influence, the industry has maintained its competitive advantage in several markets. The CMS shows that South Africa’s lemons are competitive in America. Despite a negative trend, the South African grapefruit has been competitive in France, Greece, Italy, the Netherlands and Spain. Oranges have been competitive in the Greece, Italy, Portugal, UK, Asian and Northern Europe markets. Competitiveness in these markets has been due to the inherent competitiveness of the industry. Competitiveness in such markets as the Middle East has been attributed to the relatively rapid growth of these markets. The South African citrus industry has similarly undergone many major processes of transformation. The business environmental factors influencing its performance have ranged reform to the challenges beyond the country’s borders. These factors directly and indirectly affect the performance of the industry in the export market. They have influenced the flow of fruits into different international destinations. Of major concern are the food safety and private standards. Challenges in traditional markets as well as opportunities presented by demand from newly emerging citrus consuming nations have seen a diversification in the marketing of the South African citrus. The intensity of competition in the global market is reflected by the fluctuations in the market shares in different markets as well as the increase and fluctuations of fruit rejection rates in some lucrative markets such as America. A combination of challenging national environmental forces and stringent demand conditions negatively impact on revenues especially from markets characterised by price competitiveness. This study identified cost of production, foreign market support systems, adaptability, worker skills, challenges of management in an international environment and government policies such as labour and trade policies as some of the most influential obstacles to competitiveness. Some of the most competiveness-enhancing factors were market availability, market size, market information, market growth and the availability of research institutions. However, compliance with private standards still poses a challenge to the exporters. The different performance levels of the industry in various markets prove the dissimilarity of the demand conditions in the global market. These are supported by the negative influence associated with the foreign market support regimes as well as the challenges associated with compliance with private food safety standards. While market availability, market growth, market information and size were identified as enhancing competitiveness, the fluctuations and inconsistencies in the competitiveness of the industry in different foreign markets require more than finding markets. Resource allocation by both the government and the industry may need to take into account the off-setting of the national challenges and support of farmers faced with distorted and unfair international playing fields. Otherwise, market availability is not a challenge for the industry save meeting the specifications therewith as well as price competitiveness which is unattainable for the South African citrus producers faced with high production costs. For the purposes of further study, it is recommended that account should be taken of all the products marketed by the industry (including processed products such as fruit juices) in order to have a whole picture of the competitiveness of the industry in the international market. This study also proffers a new theoretical framework for the analysis of the business environment for the citrus industry and other agro-businesses. This framework takes into account the indispensability of the food safety standards and measures as well as the diversity of the global consumer and the non-negotiability of food trade for the sustenance of the growing population.
- Full Text:
The effect of moringa oleifera leaf meal on growth perfomance, gut integrity, bone strenght, quality and oxidative stability of meat from broiler chickens
- Authors: Nkukwana, Tobela T
- Date: 2012
- Subjects: Moringa oleifera , Chickens -- Nutrition , Chickens -- Feeding and feeds , Broilers (Chickens)
- Language: English
- Type: Thesis , Doctoral , PhD (Animal Science)
- Identifier: vital:11820 , http://hdl.handle.net/10353/d1006835 , Moringa oleifera , Chickens -- Nutrition , Chickens -- Feeding and feeds , Broilers (Chickens)
- Description: This study was designed was to determine the effects of additive supplementation of Moringa oleifera leaf meal on growth performance, digestibility, digestive organ size, intestinal integrity, bone ash content and bone breaking strength, as well as meat yield and quality of broiler chickens. A total of 2400 day-old unsexed Cobb-500 broiler chicks were randomly allocated to 5 treatment groups: T1, positive control, 668 g/ton Salinomycin and 500 g/ton Albac; T2, T3 and T4 contained graded levels of MOLM at 1 percent, 3 percent and 5 percent of dry matter (DM) intake, respectively; and T5, a negative control (0 percent additives) in a complete randomized design experiment. Except for week one, FI and FCR was highest (P < 0.05) in T4 birds; while T1 birds had the highest FI in the period of 22 to 27d (P < 0.05). Throughout the production period, birds supplemented with MOLM had the highest BW (P < 0.05) than the birds fed the control diets. Feed intake (FI) and feed conversion ratio (FCR) among treatments was highest (P < 0.05) in T4 birds during the period of 8 to 14 d; and was highest (P < 0.05) for T1 birds in the period of 22 to 27d. Protein efficiency ratio (PER) and energy utilization efficiency (EEU) ratios were statistically significant among treatments (P < 0.05). However, dietary treatments had no effect (P > 0.05) on the weights of the heart, liver, spleen, or the gizzard, although the bursa for T2 birds was the lightest (P < 0.05); while gizzard erosion score was highest in T2 birds. All of the nutrients measured, except for fat, had negative intercepts that were significantly different (P < 0.05) from zero, indicating the presence of endogenous fecal losses. Tibiae length (TL) was highest in T2. The dried defatted weight (DW) was heaviest (P < 0.05) for T3 (11.20 ± 0.347) and T5 (11.08 ± 0.328). A positive correlation (r = 0.667; P < 0.01) between TW and DW was observed. There were no dietary effects on bone breaking strength (BBS), but T1 tibiae had highest resistance to breaking force (T1 > T4 > T3 > T2 > T5). Calcium was highest (P < 0.05) in T1; and lowest inT2 and T5. Phosphorus levels were lowest (P < 0.05) in T1; and highest (P < 0.05) in T5 compared. The highest Ca: P ratio was obtained in T4 (P < 0.05); while the ash percent was highest (P < 0.05) in T1. Drip loss increased as L* values increased; and a negative correlation was observed between L* and pH. On D1, C18: 0 and C22 in T2, while C15:0 was highest in T4. On D1, C20:2, C20:3n6 and C22:6n3 were highest in T2 (P < 0.05); T4 had the highest C18:3n6 (P < 0.05), while C20:2 was highest in T5 (P < 0.05). The P/S ratio on D1 was highest in T4; while n-6/n-3 was highest in T1; and n-3 was highest in T3. On D8, the n-3 was highest in T1 (P < 0.05). Results of the current study show that supplementation of M. oleifera leaf at additive levels of up to 5 percent of the bird’s DMI does have the potential to influence the bird performance without any detrimental effects on nutrient utilization, bird health, bone strength and/or meat quality, which can be concluded that MOLM enhanced the bird’s genetic potential for optimal productivity.
- Full Text:
- Authors: Nkukwana, Tobela T
- Date: 2012
- Subjects: Moringa oleifera , Chickens -- Nutrition , Chickens -- Feeding and feeds , Broilers (Chickens)
- Language: English
- Type: Thesis , Doctoral , PhD (Animal Science)
- Identifier: vital:11820 , http://hdl.handle.net/10353/d1006835 , Moringa oleifera , Chickens -- Nutrition , Chickens -- Feeding and feeds , Broilers (Chickens)
- Description: This study was designed was to determine the effects of additive supplementation of Moringa oleifera leaf meal on growth performance, digestibility, digestive organ size, intestinal integrity, bone ash content and bone breaking strength, as well as meat yield and quality of broiler chickens. A total of 2400 day-old unsexed Cobb-500 broiler chicks were randomly allocated to 5 treatment groups: T1, positive control, 668 g/ton Salinomycin and 500 g/ton Albac; T2, T3 and T4 contained graded levels of MOLM at 1 percent, 3 percent and 5 percent of dry matter (DM) intake, respectively; and T5, a negative control (0 percent additives) in a complete randomized design experiment. Except for week one, FI and FCR was highest (P < 0.05) in T4 birds; while T1 birds had the highest FI in the period of 22 to 27d (P < 0.05). Throughout the production period, birds supplemented with MOLM had the highest BW (P < 0.05) than the birds fed the control diets. Feed intake (FI) and feed conversion ratio (FCR) among treatments was highest (P < 0.05) in T4 birds during the period of 8 to 14 d; and was highest (P < 0.05) for T1 birds in the period of 22 to 27d. Protein efficiency ratio (PER) and energy utilization efficiency (EEU) ratios were statistically significant among treatments (P < 0.05). However, dietary treatments had no effect (P > 0.05) on the weights of the heart, liver, spleen, or the gizzard, although the bursa for T2 birds was the lightest (P < 0.05); while gizzard erosion score was highest in T2 birds. All of the nutrients measured, except for fat, had negative intercepts that were significantly different (P < 0.05) from zero, indicating the presence of endogenous fecal losses. Tibiae length (TL) was highest in T2. The dried defatted weight (DW) was heaviest (P < 0.05) for T3 (11.20 ± 0.347) and T5 (11.08 ± 0.328). A positive correlation (r = 0.667; P < 0.01) between TW and DW was observed. There were no dietary effects on bone breaking strength (BBS), but T1 tibiae had highest resistance to breaking force (T1 > T4 > T3 > T2 > T5). Calcium was highest (P < 0.05) in T1; and lowest inT2 and T5. Phosphorus levels were lowest (P < 0.05) in T1; and highest (P < 0.05) in T5 compared. The highest Ca: P ratio was obtained in T4 (P < 0.05); while the ash percent was highest (P < 0.05) in T1. Drip loss increased as L* values increased; and a negative correlation was observed between L* and pH. On D1, C18: 0 and C22 in T2, while C15:0 was highest in T4. On D1, C20:2, C20:3n6 and C22:6n3 were highest in T2 (P < 0.05); T4 had the highest C18:3n6 (P < 0.05), while C20:2 was highest in T5 (P < 0.05). The P/S ratio on D1 was highest in T4; while n-6/n-3 was highest in T1; and n-3 was highest in T3. On D8, the n-3 was highest in T1 (P < 0.05). Results of the current study show that supplementation of M. oleifera leaf at additive levels of up to 5 percent of the bird’s DMI does have the potential to influence the bird performance without any detrimental effects on nutrient utilization, bird health, bone strength and/or meat quality, which can be concluded that MOLM enhanced the bird’s genetic potential for optimal productivity.
- Full Text:
The impact of the new co-operative act on employment and poverty reduction: a case study of sorghum producers in the Eastern Cape province
- Authors: Manciya, Sixolise
- Date: 2012
- Subjects: Sorghum industry -- South Africa -- Eastern Cape , Poor -- Employment -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Agriculture, Cooperative -- South Africa -- Eastern Cape , Cooperative societies -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Farmers -- South Africa -- Eastern Cape -- Economic conditions , Job creation -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Agricultural Economics)
- Identifier: vital:11180 , http://hdl.handle.net/10353/d1001026 , Sorghum industry -- South Africa -- Eastern Cape , Poor -- Employment -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Agriculture, Cooperative -- South Africa -- Eastern Cape , Cooperative societies -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Farmers -- South Africa -- Eastern Cape -- Economic conditions , Job creation -- South Africa -- Eastern Cape
- Description: In general, traditional co-operatives suffer from free-rider, horizon, portfolio, control and influence problems that starve them of both equity and debt capital. Evidently, the factors which constrain agricultural development also inhibit co-operative development in the former homelands. These factors include socio-economic as well as political factors operating in the environment of the cooperatives. In addition to these external factors, co-operatives have several internal problems such as inefficient management and lack of understanding of the co-operative concept and principles. The New Cooperative Act No. 14 of 2005 was an attempt at addressing these fundamental problems. The purpose of this study was to analyze the extent towhich cooperatives organized on the basis of this new Act have performed and to ascertainwhether or not they have met the expectations of the policy makers. In order to address these issues a structured questionnaire was used to interview 100 farmers. Farmers were divided into two groups, one group consisting of fifty members and the other fifty non-members; all these farmers were randomly selected from Ndonga and Maqhashu in Lady frère. The study investigated and profiled the socio-economic situation of the communities of Ndonga and Maqhashu with particular emphasis on the employment and poverty situations, as well as the income earning opportunities in the communities. It also undertook a comparison of the members and non-members of the co-operatives in terms of their production results under the sorghum production programmes in the two communities.The data were analyzed by means of descriptive and inferential statistics which explain some measures of central tendency and dispersion as well as levels of significance. A t-test of independent samples was used to compare the means for the sorghum yields and revenues for non-members and members of the co-operative. Gross margin analysis was also used to determine the financial implications of cooperation for the smallholders. In addition, a multiple regression model and a discriminant function were fitted to determine the factors explaining the differences in performance of members and non-members of the cooperative society. The Gross Margin analysis shows that the cooperatives are operating at a loss, meaning they produce less with high production costs. However, the results also show that the Ndonga and Maqhashu sorghum co-operative did not benefit only its members but the whole community through significant job creation for the local population.
- Full Text:
- Authors: Manciya, Sixolise
- Date: 2012
- Subjects: Sorghum industry -- South Africa -- Eastern Cape , Poor -- Employment -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Agriculture, Cooperative -- South Africa -- Eastern Cape , Cooperative societies -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Farmers -- South Africa -- Eastern Cape -- Economic conditions , Job creation -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Agricultural Economics)
- Identifier: vital:11180 , http://hdl.handle.net/10353/d1001026 , Sorghum industry -- South Africa -- Eastern Cape , Poor -- Employment -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Agriculture, Cooperative -- South Africa -- Eastern Cape , Cooperative societies -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Farmers -- South Africa -- Eastern Cape -- Economic conditions , Job creation -- South Africa -- Eastern Cape
- Description: In general, traditional co-operatives suffer from free-rider, horizon, portfolio, control and influence problems that starve them of both equity and debt capital. Evidently, the factors which constrain agricultural development also inhibit co-operative development in the former homelands. These factors include socio-economic as well as political factors operating in the environment of the cooperatives. In addition to these external factors, co-operatives have several internal problems such as inefficient management and lack of understanding of the co-operative concept and principles. The New Cooperative Act No. 14 of 2005 was an attempt at addressing these fundamental problems. The purpose of this study was to analyze the extent towhich cooperatives organized on the basis of this new Act have performed and to ascertainwhether or not they have met the expectations of the policy makers. In order to address these issues a structured questionnaire was used to interview 100 farmers. Farmers were divided into two groups, one group consisting of fifty members and the other fifty non-members; all these farmers were randomly selected from Ndonga and Maqhashu in Lady frère. The study investigated and profiled the socio-economic situation of the communities of Ndonga and Maqhashu with particular emphasis on the employment and poverty situations, as well as the income earning opportunities in the communities. It also undertook a comparison of the members and non-members of the co-operatives in terms of their production results under the sorghum production programmes in the two communities.The data were analyzed by means of descriptive and inferential statistics which explain some measures of central tendency and dispersion as well as levels of significance. A t-test of independent samples was used to compare the means for the sorghum yields and revenues for non-members and members of the co-operative. Gross margin analysis was also used to determine the financial implications of cooperation for the smallholders. In addition, a multiple regression model and a discriminant function were fitted to determine the factors explaining the differences in performance of members and non-members of the cooperative society. The Gross Margin analysis shows that the cooperatives are operating at a loss, meaning they produce less with high production costs. However, the results also show that the Ndonga and Maqhashu sorghum co-operative did not benefit only its members but the whole community through significant job creation for the local population.
- Full Text:
Exploring the role of rural entrepreneurship on welfare in South Africa: a case of Nkonkobe Municipal area in the Eastern Cape Province
- Ngorora, Grace Portia Kuda https://orcid.org/0000-0003-4756-3137
- Authors: Ngorora, Grace Portia Kuda https://orcid.org/0000-0003-4756-3137
- Date: 2011-12
- Subjects: Rural development projects , Public welfare --South Africa , Entrepreneurship
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26357 , vital:65248
- Description: The study set out to explore the role of rural entrepreneurship on welfare in Nkonkobe Municipal Area of the Eastern Cape Province of South Africa. The objectives of the study were to identify the role rural entrepreneurship plays on welfare and determine the factors that promote or hinder rural entrepreneurship. Semi-structured questionnaires were administered to establish the perceptions of rural entrepreneurs. Findings from the study suggest that rural entrepreneurship contributes immensely to the welfare of individuals, family and community in Nkonkobe Municipal Area of the Eastern Cape Province. Rural entrepreneurship is the most important activity for entrepreneurs for it enables individuals to access quality health facilities and experience an improved quality of life. The study also found that families have more income which they use to acquire assets. They are able to send children to good schools using earnings from their business activities. Entrepreneurs can also contribute to the welfare of their relatives as result of being entrepreneurial. The results imply that rural entrepreneurship improves the quality of livelihood for rural dwellers. There was a significant correlation between the role rural entrepreneurship plays in generating more income and the rural dwellers ability to send their children to good schools. Findings from this study also showed that rural entrepreneurship improves the quality of livelihood in rural areas through the creation of wealth and employment. For most respondents 83 percent entrepreneurship alone provides them with income. Social capital in the form of special relationships, access to critical information, unique local knowledge and previous experience was ranked the most important factor when starting businesses. Irregular payments from customers were considered the factor affecting entrepreneurs most in Nkonkobe Municipality. Lack of finance was ranked the factor hindering rural entrepreneurship most in Nkonkobe Municipality. Training and educational programs, capacitating as well as support from government were found to be very important for entrepreneurship to grow in Nkonkobe Municipality. , Thesis (MSoc) -- Faculty of Management and Commerce, 2011
- Full Text:
- Authors: Ngorora, Grace Portia Kuda https://orcid.org/0000-0003-4756-3137
- Date: 2011-12
- Subjects: Rural development projects , Public welfare --South Africa , Entrepreneurship
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/26357 , vital:65248
- Description: The study set out to explore the role of rural entrepreneurship on welfare in Nkonkobe Municipal Area of the Eastern Cape Province of South Africa. The objectives of the study were to identify the role rural entrepreneurship plays on welfare and determine the factors that promote or hinder rural entrepreneurship. Semi-structured questionnaires were administered to establish the perceptions of rural entrepreneurs. Findings from the study suggest that rural entrepreneurship contributes immensely to the welfare of individuals, family and community in Nkonkobe Municipal Area of the Eastern Cape Province. Rural entrepreneurship is the most important activity for entrepreneurs for it enables individuals to access quality health facilities and experience an improved quality of life. The study also found that families have more income which they use to acquire assets. They are able to send children to good schools using earnings from their business activities. Entrepreneurs can also contribute to the welfare of their relatives as result of being entrepreneurial. The results imply that rural entrepreneurship improves the quality of livelihood for rural dwellers. There was a significant correlation between the role rural entrepreneurship plays in generating more income and the rural dwellers ability to send their children to good schools. Findings from this study also showed that rural entrepreneurship improves the quality of livelihood in rural areas through the creation of wealth and employment. For most respondents 83 percent entrepreneurship alone provides them with income. Social capital in the form of special relationships, access to critical information, unique local knowledge and previous experience was ranked the most important factor when starting businesses. Irregular payments from customers were considered the factor affecting entrepreneurs most in Nkonkobe Municipality. Lack of finance was ranked the factor hindering rural entrepreneurship most in Nkonkobe Municipality. Training and educational programs, capacitating as well as support from government were found to be very important for entrepreneurship to grow in Nkonkobe Municipality. , Thesis (MSoc) -- Faculty of Management and Commerce, 2011
- Full Text:
An evaluation of stress tolerant open pollinated maize varieties in selected environments of the Eastern Cape Province, South Africa
- Chimonyo, Vimbayi G P https://orcid.org/0000-0001-9912-9848
- Authors: Chimonyo, Vimbayi G P https://orcid.org/0000-0001-9912-9848
- Date: 2011-11
- Subjects: Crops -- Effect of stress on
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24487 , vital:63045
- Description: The use of farmer acceptable, stress tolerant open pollinated maize varieties (OPVs) could be a strategy to help increase maize productivity for resource-poor farmers in the Eastern Cape (EC) Province. The current study investigated the following: a) participatory selection of newly introduced stress tolerant maize OPVs; b) characteristics of maize producing farmers, their production constraints and criteria for variety selections; c) multi-environment yield trials in which genotype and environment interactions (GEI) were investigated, and d) morphological diversity of newly introduced maize varieties. Nine newly introduced maize OPVs were evaluated in this study. These varieties were: ZM 305, ZM 423 ZM 501, ZM 525, Obatanpa, ZM 621, ZM 627, which were from the International Maize and Wheat Improvement Centre (CIMMYT), BR 993, and Comp 4 which from where the International Institute of Tropical Agriculture (IITA). Check varieties, Pan 6479 (a hybrid) and three locally grown OPVs (Okavango, Afric 1 and Nelson‘s Choice) were also included. Participatory variety selection (PVS) was conducted during the 2009/10 summer season to evaluate farmer acceptance of these newly introduced OPVs. The most preferred varieties farmers were Okavango, ZM 305 and ZM 501, and these varieties were not significantly different from the highest yielding variety within each site. Therefore, varieties like ZM 305 and ZM 501 could easily be adopted by farmers, and their use could result in yield improvements. To gather information on farmer characteristics, and perceptions on maize production constraints and maize selection criteria, focus group discussions and household surveys were conducted during the 2009/2010 and 2010/2011 seasons, respectively. Results indicated that, elderly farmers dominated the farming communities. Maize production was generally low, with 98percent of the farmers obtaining less than 1.6 t/ha. The most important constraints affecting maize production were extreme weather events (floods and drought), pests and diseases, and poor access to credit. The most preferred traits that made up farmer selection criteria were ear traits such as taste, long cobs, and big kernels. Other traits, such as, prolificacy, early maturity, retainability of seed and dark leaves, were village specific. Yield trials, assessing genotype and environment interactions, were conducted in eight sites during the 2009/10 and 2010/11 seasons. The genotypes exhibited non-significant crossover and non-crossover GEI over the environments. Okavango, the most stable variety, was generally low yielding (4.28 t/ha) than other stable varieties such as ZM 305, ZM 501, ZM 621 and ZM 423. The later varieties had significantly (p<0.05) higher yields of between 4.46 t/ha and 4.97 t/ha. The highest yielding varieties, Pan 6479 (5.29 t/ha) and ZM 525 (4.87 t/ha), showed specific adaptations to high potential environments, while BR 993 (4.07 t/ha) and Afric 1 (4.24 t/ha) were low yielding, unstable and specifically adapted to low potential environments. New varieties, therefore, exhibited both specific and wide adaptation. Qualitative and quantitative traits were evaluated to establish the morphological diversity of the 13 varieties. Ear height, plant height, days to 50percent anthesis and grain yield contributed the most to variety diversity. Cluster Analysis discriminated varieties into four main clusters. The first cluster consisted of four CIMMYT varieties that were short in height and early maturing (ZM 305, ZM 423, ZM 501 and ZM 525), while hybrid Pan 6479 was placed into cluster two. Nelson‘s Choice and Okavango were grouped into the third cluster, while tall and late maturing varieties, ZM 621, ZM 627, Obatanpa, BR 993, Comp 4 and Afric 1, were placed in the fourth cluster. The segregation of the newly introduced varieties into two distinct groups shows that these varieties can be recommended into more than on cropping system and agro-ecology. Differences in village agro-ecologies resulted in farmers selecting varieties differently. This diversity in agro-ecology also brought about variations on farmer perceptions in selection criteria and production constraints. Most of the new varieties were observed to be superior in yield performance when compared to local check OPVs, exhibiting either wide or specific adaptation. The study also demonstrated that, the study of morphological diversity can be used to suggest varieties to different environmental potentials and cropping systems. Multi-evaluation trials were able to give an insight on variety preferences and performance. These new varieties should, therefore, be introduced to selected farmers living in their respective environments on the basis of results obtained. However, varieties still need to be evaluated under farmer-managed conditions to determine whether they actually bring about yield improvement when compared with current varieties being used. , Thesis (MSc) -- Faculty of Science and Agriculture, 2011
- Full Text:
- Authors: Chimonyo, Vimbayi G P https://orcid.org/0000-0001-9912-9848
- Date: 2011-11
- Subjects: Crops -- Effect of stress on
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/24487 , vital:63045
- Description: The use of farmer acceptable, stress tolerant open pollinated maize varieties (OPVs) could be a strategy to help increase maize productivity for resource-poor farmers in the Eastern Cape (EC) Province. The current study investigated the following: a) participatory selection of newly introduced stress tolerant maize OPVs; b) characteristics of maize producing farmers, their production constraints and criteria for variety selections; c) multi-environment yield trials in which genotype and environment interactions (GEI) were investigated, and d) morphological diversity of newly introduced maize varieties. Nine newly introduced maize OPVs were evaluated in this study. These varieties were: ZM 305, ZM 423 ZM 501, ZM 525, Obatanpa, ZM 621, ZM 627, which were from the International Maize and Wheat Improvement Centre (CIMMYT), BR 993, and Comp 4 which from where the International Institute of Tropical Agriculture (IITA). Check varieties, Pan 6479 (a hybrid) and three locally grown OPVs (Okavango, Afric 1 and Nelson‘s Choice) were also included. Participatory variety selection (PVS) was conducted during the 2009/10 summer season to evaluate farmer acceptance of these newly introduced OPVs. The most preferred varieties farmers were Okavango, ZM 305 and ZM 501, and these varieties were not significantly different from the highest yielding variety within each site. Therefore, varieties like ZM 305 and ZM 501 could easily be adopted by farmers, and their use could result in yield improvements. To gather information on farmer characteristics, and perceptions on maize production constraints and maize selection criteria, focus group discussions and household surveys were conducted during the 2009/2010 and 2010/2011 seasons, respectively. Results indicated that, elderly farmers dominated the farming communities. Maize production was generally low, with 98percent of the farmers obtaining less than 1.6 t/ha. The most important constraints affecting maize production were extreme weather events (floods and drought), pests and diseases, and poor access to credit. The most preferred traits that made up farmer selection criteria were ear traits such as taste, long cobs, and big kernels. Other traits, such as, prolificacy, early maturity, retainability of seed and dark leaves, were village specific. Yield trials, assessing genotype and environment interactions, were conducted in eight sites during the 2009/10 and 2010/11 seasons. The genotypes exhibited non-significant crossover and non-crossover GEI over the environments. Okavango, the most stable variety, was generally low yielding (4.28 t/ha) than other stable varieties such as ZM 305, ZM 501, ZM 621 and ZM 423. The later varieties had significantly (p<0.05) higher yields of between 4.46 t/ha and 4.97 t/ha. The highest yielding varieties, Pan 6479 (5.29 t/ha) and ZM 525 (4.87 t/ha), showed specific adaptations to high potential environments, while BR 993 (4.07 t/ha) and Afric 1 (4.24 t/ha) were low yielding, unstable and specifically adapted to low potential environments. New varieties, therefore, exhibited both specific and wide adaptation. Qualitative and quantitative traits were evaluated to establish the morphological diversity of the 13 varieties. Ear height, plant height, days to 50percent anthesis and grain yield contributed the most to variety diversity. Cluster Analysis discriminated varieties into four main clusters. The first cluster consisted of four CIMMYT varieties that were short in height and early maturing (ZM 305, ZM 423, ZM 501 and ZM 525), while hybrid Pan 6479 was placed into cluster two. Nelson‘s Choice and Okavango were grouped into the third cluster, while tall and late maturing varieties, ZM 621, ZM 627, Obatanpa, BR 993, Comp 4 and Afric 1, were placed in the fourth cluster. The segregation of the newly introduced varieties into two distinct groups shows that these varieties can be recommended into more than on cropping system and agro-ecology. Differences in village agro-ecologies resulted in farmers selecting varieties differently. This diversity in agro-ecology also brought about variations on farmer perceptions in selection criteria and production constraints. Most of the new varieties were observed to be superior in yield performance when compared to local check OPVs, exhibiting either wide or specific adaptation. The study also demonstrated that, the study of morphological diversity can be used to suggest varieties to different environmental potentials and cropping systems. Multi-evaluation trials were able to give an insight on variety preferences and performance. These new varieties should, therefore, be introduced to selected farmers living in their respective environments on the basis of results obtained. However, varieties still need to be evaluated under farmer-managed conditions to determine whether they actually bring about yield improvement when compared with current varieties being used. , Thesis (MSc) -- Faculty of Science and Agriculture, 2011
- Full Text:
An assessment of the challenges and implications of community participation in the formulation of Lesotho Land Bill 2009
- Authors: Modia, Teboho Edward
- Date: 2011
- Subjects: Community development -- Lesotho , Rural development projects -- Planning -- Citizen participation , Rural development -- Lesotho , Land reform -- Law and legislation -- Lesotho , Land tenure -- Lesotho , Land settlement -- Lesotho , Land use -- Lesotho
- Language: English
- Type: Thesis , Masters , M Soc Sc (Dev)
- Identifier: vital:11436 , http://hdl.handle.net/10353/d1007192 , Community development -- Lesotho , Rural development projects -- Planning -- Citizen participation , Rural development -- Lesotho , Land reform -- Law and legislation -- Lesotho , Land tenure -- Lesotho , Land settlement -- Lesotho , Land use -- Lesotho
- Description: This study focused on community participation in relation to policy formulation in Lesotho. It paid particular attention to whether the Lesotho community participated in the formulation of the Lesotho Land Bill 2009. Literature related to the concept of participatory development, community participation and policy formulation was reviewed. From the literature, it was clear that the attainment of effective community participation in policy formulation is not something that can take place overnight and this makes community participation a crucial aspect of any development project. The study used the qualitative approach to provide more information and detailed examination of community participation in the formulation of the Lesotho Land Bill 2009. This approach adopted the case study design. The data was collected using focus groups, interview schedule and document analysis. The study found that the government did not consult widely on the Bill before it was enacted into an Act of parliament. Therefore, it recommends that the government of Lesotho should involve all relevant stakeholders to participate in policy formulation. This will help to establish a link between the government and civil society stakeholders at local levels, for participatory policy-making to be effective.
- Full Text:
- Authors: Modia, Teboho Edward
- Date: 2011
- Subjects: Community development -- Lesotho , Rural development projects -- Planning -- Citizen participation , Rural development -- Lesotho , Land reform -- Law and legislation -- Lesotho , Land tenure -- Lesotho , Land settlement -- Lesotho , Land use -- Lesotho
- Language: English
- Type: Thesis , Masters , M Soc Sc (Dev)
- Identifier: vital:11436 , http://hdl.handle.net/10353/d1007192 , Community development -- Lesotho , Rural development projects -- Planning -- Citizen participation , Rural development -- Lesotho , Land reform -- Law and legislation -- Lesotho , Land tenure -- Lesotho , Land settlement -- Lesotho , Land use -- Lesotho
- Description: This study focused on community participation in relation to policy formulation in Lesotho. It paid particular attention to whether the Lesotho community participated in the formulation of the Lesotho Land Bill 2009. Literature related to the concept of participatory development, community participation and policy formulation was reviewed. From the literature, it was clear that the attainment of effective community participation in policy formulation is not something that can take place overnight and this makes community participation a crucial aspect of any development project. The study used the qualitative approach to provide more information and detailed examination of community participation in the formulation of the Lesotho Land Bill 2009. This approach adopted the case study design. The data was collected using focus groups, interview schedule and document analysis. The study found that the government did not consult widely on the Bill before it was enacted into an Act of parliament. Therefore, it recommends that the government of Lesotho should involve all relevant stakeholders to participate in policy formulation. This will help to establish a link between the government and civil society stakeholders at local levels, for participatory policy-making to be effective.
- Full Text:
Antioxidant activity and the quality of meat from goats and broilers supplemented with Moringa (Moringa Oleifera) leaves
- Authors: Qwele, Kumnandi
- Date: 2011
- Subjects: Goats -- South Africa -- Eastern Cape , Chickens -- South Africa -- Eastern Cape , Meat -- Quality , Moringa
- Language: English
- Type: Thesis , Masters , MSc Agric (Animal Science)
- Identifier: vital:11803 , http://hdl.handle.net/10353/469 , Goats -- South Africa -- Eastern Cape , Chickens -- South Africa -- Eastern Cape , Meat -- Quality , Moringa
- Description: The objective of the study was to determine the antioxidant activity (AA) and the quality of meat from goats and chickens supplemented with Moringa (Moringa oleifera) leaves. For the first experimental chapter, eighteen 9 months old Xhosa lop-eared, castrated goats with an average body weight of 14 kg were used. There were three supplements namely, Moringa oleifera leaves, sunflower cake and grass hay. There were six goats per supplement. The goats were slaughtered after 60 days of supplementation and the Muscularis longissimus thoracis et lumborum (LTL) of the right side of each goat was used to determine fatty acid composition, total phenolic content (TPC), diphenylpicrylhydrazyl (DPPH) assay, 2, 2 azino-bis (3- ethylbenzothiazoline-6-sulphonic diammonium salt (ABTS) assay and reducing power assay of meat. Glutathione (GSH), catalase (CAT) and superoxide dismutase (SOD) and lipid peroxidation (thiobarbituric acid reactive substances, TBARS) were taken as parameters to evaluate in vivo AA of the meat. For the second experiment, twelve male broilers were used in four groups of dietary supplementation. Three broilers were allocated per group. After slaughter, the breast muscle was sampled for total phenols, flavonoids, proanthocyanidins, TPC, ABTS, GSH, CAT, SOD, lipid peroxidation, ultimate pH (pH24), colour (L* (lightness), a* (redness), b* (yellowness)), WB-shear force and cooking loss. In both chapters Moringa leaves exhibited the highest AA. Meat from goats supplement with Moringa exhibited the highest AA. Meat from broilers supplemented with a mixture of Moringa leaves, broiler finisher and crushed maize, had the highest (P < 0.05) pH24 and L* values. Moringa can therefore be used to preserve meat without changing the quality of meat.
- Full Text:
- Authors: Qwele, Kumnandi
- Date: 2011
- Subjects: Goats -- South Africa -- Eastern Cape , Chickens -- South Africa -- Eastern Cape , Meat -- Quality , Moringa
- Language: English
- Type: Thesis , Masters , MSc Agric (Animal Science)
- Identifier: vital:11803 , http://hdl.handle.net/10353/469 , Goats -- South Africa -- Eastern Cape , Chickens -- South Africa -- Eastern Cape , Meat -- Quality , Moringa
- Description: The objective of the study was to determine the antioxidant activity (AA) and the quality of meat from goats and chickens supplemented with Moringa (Moringa oleifera) leaves. For the first experimental chapter, eighteen 9 months old Xhosa lop-eared, castrated goats with an average body weight of 14 kg were used. There were three supplements namely, Moringa oleifera leaves, sunflower cake and grass hay. There were six goats per supplement. The goats were slaughtered after 60 days of supplementation and the Muscularis longissimus thoracis et lumborum (LTL) of the right side of each goat was used to determine fatty acid composition, total phenolic content (TPC), diphenylpicrylhydrazyl (DPPH) assay, 2, 2 azino-bis (3- ethylbenzothiazoline-6-sulphonic diammonium salt (ABTS) assay and reducing power assay of meat. Glutathione (GSH), catalase (CAT) and superoxide dismutase (SOD) and lipid peroxidation (thiobarbituric acid reactive substances, TBARS) were taken as parameters to evaluate in vivo AA of the meat. For the second experiment, twelve male broilers were used in four groups of dietary supplementation. Three broilers were allocated per group. After slaughter, the breast muscle was sampled for total phenols, flavonoids, proanthocyanidins, TPC, ABTS, GSH, CAT, SOD, lipid peroxidation, ultimate pH (pH24), colour (L* (lightness), a* (redness), b* (yellowness)), WB-shear force and cooking loss. In both chapters Moringa leaves exhibited the highest AA. Meat from goats supplement with Moringa exhibited the highest AA. Meat from broilers supplemented with a mixture of Moringa leaves, broiler finisher and crushed maize, had the highest (P < 0.05) pH24 and L* values. Moringa can therefore be used to preserve meat without changing the quality of meat.
- Full Text:
Characterization of village chicken health and management practices in the Amatola Basin of the Eastern Cape Province of South Afrrica
- Nyoni, Njongenhle Mhlanhlandlela Bernard
- Authors: Nyoni, Njongenhle Mhlanhlandlela Bernard
- Date: 2011
- Subjects: Chickens -- Diseases , Chickens -- Health , Chickens -- Parasites , Chickens -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Animal Science)
- Identifier: vital:11804 , http://hdl.handle.net/10353/561 , Chickens -- Diseases , Chickens -- Health , Chickens -- Parasites , Chickens -- South Africa -- Eastern Cape
- Description: Characterization of village chicken phealth and management practices in the Amatola Basin of the Eastern Cape Province, South Africa By Njongenhle M. B. NYONI The majority of rural households in South Africa own village chickens which contribute significantly to their livelihoods. However, limited research has been conducted to characterize, understand and develop village chicken production in South Africa. This hinders the designing and implementation of village chicken-based developmental programmes that will benefit farmers in rural areas. Thus, it is imperative to initiate studies to describe village chicken production. This study was conducted to characterize village chicken production in Amatola Basin of the Eastern Cape Province of South Africa. Baseline information was gathered using a questionnaire survey of 81 identified from 7 out of 13 villages using snowball sampling technique. Consequently, 20 households were selected to participate in a monitoring study (from July 2010 to June 2011) through purposive sampling. Most (60%) chicken flocks were owned by women and mainly raised to meet household food requirements. Some (28.4%) farmers occasionally sold cocks and hens to neighbours, at an average price of R50 (USD7.55) per bird, as a way of culling their flocks and generating income. However, village chickens were mainly kept for food security rather than for their terminal benefit of cash. Although, all chicken flocks were produced under the scavenging feeding system, most (96%) flocks were provided with supplementary feed and drinking water. A majority (93.8%) of households also provided some form of shelter for their chickens. The mean cock to hen to chick ratio was 1:5:15. On average, iii each household owned 17 (±2 S.E.M.) chickens, and hens had 3.3 clutches per annum. Chicks hatched and chickens received as gifts represented the flock entries, while exits included mortality, consumption, sales and gifts or donations, in that order. Generally, both exits and entries were more pronounced in the summer season than in other seasons. Most (81.5%) farmers experienced chicken losses due to predation and health related problems. Parasitism ranked high amongst the village chicken health challenges. During monitoring, the endoprasites identified included nematodes, cestodes and protozoa. Coccidia were the most prevalent endoparasites. The chickens were also infested with a variety of ectoparasites namely: mites, lice, fleas and ticks. The sticktight flea Echidnophaga gallinacean was the most prevalent species. Although ectoparasite infestations were most pronounced in summer, almost all chickens harbored one or more of these parasites throughout the study period. The prevalence and intensity of parasite infestations were significantly (P<0.05) higher in the summer season compared to the other seasons. This was followed by the autumn, spring and winter seasons, respectively. The majority (77.5%) of farmers resorted to alternative remedies, mostly medicinal plants, for treating diseases and controlling parasites. Medicinal plants were used because they were locally available, cheap and perceived to be effective. Therefore, village chicken production in the rural Eastern Cape Province is characterised by several challenges which counter the significant role chickens play in the livelihood of rural households.
- Full Text:
- Authors: Nyoni, Njongenhle Mhlanhlandlela Bernard
- Date: 2011
- Subjects: Chickens -- Diseases , Chickens -- Health , Chickens -- Parasites , Chickens -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Animal Science)
- Identifier: vital:11804 , http://hdl.handle.net/10353/561 , Chickens -- Diseases , Chickens -- Health , Chickens -- Parasites , Chickens -- South Africa -- Eastern Cape
- Description: Characterization of village chicken phealth and management practices in the Amatola Basin of the Eastern Cape Province, South Africa By Njongenhle M. B. NYONI The majority of rural households in South Africa own village chickens which contribute significantly to their livelihoods. However, limited research has been conducted to characterize, understand and develop village chicken production in South Africa. This hinders the designing and implementation of village chicken-based developmental programmes that will benefit farmers in rural areas. Thus, it is imperative to initiate studies to describe village chicken production. This study was conducted to characterize village chicken production in Amatola Basin of the Eastern Cape Province of South Africa. Baseline information was gathered using a questionnaire survey of 81 identified from 7 out of 13 villages using snowball sampling technique. Consequently, 20 households were selected to participate in a monitoring study (from July 2010 to June 2011) through purposive sampling. Most (60%) chicken flocks were owned by women and mainly raised to meet household food requirements. Some (28.4%) farmers occasionally sold cocks and hens to neighbours, at an average price of R50 (USD7.55) per bird, as a way of culling their flocks and generating income. However, village chickens were mainly kept for food security rather than for their terminal benefit of cash. Although, all chicken flocks were produced under the scavenging feeding system, most (96%) flocks were provided with supplementary feed and drinking water. A majority (93.8%) of households also provided some form of shelter for their chickens. The mean cock to hen to chick ratio was 1:5:15. On average, iii each household owned 17 (±2 S.E.M.) chickens, and hens had 3.3 clutches per annum. Chicks hatched and chickens received as gifts represented the flock entries, while exits included mortality, consumption, sales and gifts or donations, in that order. Generally, both exits and entries were more pronounced in the summer season than in other seasons. Most (81.5%) farmers experienced chicken losses due to predation and health related problems. Parasitism ranked high amongst the village chicken health challenges. During monitoring, the endoprasites identified included nematodes, cestodes and protozoa. Coccidia were the most prevalent endoparasites. The chickens were also infested with a variety of ectoparasites namely: mites, lice, fleas and ticks. The sticktight flea Echidnophaga gallinacean was the most prevalent species. Although ectoparasite infestations were most pronounced in summer, almost all chickens harbored one or more of these parasites throughout the study period. The prevalence and intensity of parasite infestations were significantly (P<0.05) higher in the summer season compared to the other seasons. This was followed by the autumn, spring and winter seasons, respectively. The majority (77.5%) of farmers resorted to alternative remedies, mostly medicinal plants, for treating diseases and controlling parasites. Medicinal plants were used because they were locally available, cheap and perceived to be effective. Therefore, village chicken production in the rural Eastern Cape Province is characterised by several challenges which counter the significant role chickens play in the livelihood of rural households.
- Full Text:
Crime, violence and apartheid in selected works of Richard Wright and Athol Fugard: a study
- Authors: Makombe, Rodwell
- Date: 2011
- Subjects: Apartheid in literature , Politics and literature -- South Africa , Race discrimination -- South Africa , Crime -- South Africa , Violence -- South Africa
- Language: English
- Type: Thesis , Doctoral , DLitt et Phil (English)
- Identifier: vital:11888 , http://hdl.handle.net/10353/525 , Apartheid in literature , Politics and literature -- South Africa , Race discrimination -- South Africa , Crime -- South Africa , Violence -- South Africa
- Description: Different forms of racial segregation have been practiced in different countries the world over. However, the nature of South Africa‟s apartheid system, as it was practiced from 1948 until the dawn of the democratic dispensation in 1994, has been a subject of debate in South Africa and even beyond. Apartheid was a policy that was designed by the then ruling Nationalist Party for purposes of dividing and stratifying South Africa along racial lines - whites, blacks, coloureds and Asians. It thus promoted racial segregation and/or unequal stratification of society. In South Africa‟s hierarchy of apartheid, blacks, who constituted the majority of the population, were ironically the most destitute and segregated. Some historians believe that South Africa‟s racial policy was designed against the backdrop of Jim Crow, a similar system of racial discrimination which was instituted in the American South late in the 1890s through the 20th century. Jim Crow and apartheid are, in this study, considered as sides of the same coin; hence for the sake of convenience, the word apartheid is used to subsume Jim Crow. Although South Africa‟s apartheid system was influenced by different ideologies, for example German missiology as applied by the Dutch Reformed Church, historian Hermann Giliomee (2003: 373) insists that „the segregationist practice of the American South was particularly influential.‟ Given the ideological relationship between apartheid and Jim Crow, the present study investigates the interplay of compatibility between apartheid/Jim Crow and crime and violence as reflected in selected works of Richard Wright (African American novelist) and Athol Fugard (South African playwright). The aim of the study is firstly, to examine the works in order to analyse them as responses to apartheid and by extension colonial domination and secondly to investigate crime and violence. The three criminological theories selected for this study are strain theory (by Robert Merton), subculture theory (Edwin Sutherland) and labelling theory (Howard Becker). While criminological theory provides an empirical dimension to the study, postcolonial theory situates the study within a specified space, which is the postcolonial context. The postcolonial is, however understood, not as a demarcated historical space, but as a continuum, from the dawn of colonization to the unforeseeable future. Three postcolonial theorists have been identified for the purposes of this study. These are: Frantz Fanon, Homi Bhabha and Bill Ashcroft. Fanon‟s psychoanalysis of the colonized, Homi Bhabha‟s Third Space and hybridity as well as Ashcroft‟s postcolonial transformation are key concepts in understanding the different ways in which the colonized deal with the consequences of colonization. It has been suggested particularly in Edward Said‟s Orientalism (1978) that the discourse of orientalism creates the Oriental, as if Orientals were a passive object of the colonial adventure. This study uses Bhabha‟s and Ashcroft‟s theory of colonial discourse to argue that the colonized are not only objects of the colonial enterprise but also active participants in the process of opening survival spaces for self-realization. The various criminal activities that the colonized engage in (as represented in the selected works of Richard Wright and Athol Fugard) are in this study viewed as ways of inscribing their subjectivity within an exclusive colonial system.
- Full Text:
- Authors: Makombe, Rodwell
- Date: 2011
- Subjects: Apartheid in literature , Politics and literature -- South Africa , Race discrimination -- South Africa , Crime -- South Africa , Violence -- South Africa
- Language: English
- Type: Thesis , Doctoral , DLitt et Phil (English)
- Identifier: vital:11888 , http://hdl.handle.net/10353/525 , Apartheid in literature , Politics and literature -- South Africa , Race discrimination -- South Africa , Crime -- South Africa , Violence -- South Africa
- Description: Different forms of racial segregation have been practiced in different countries the world over. However, the nature of South Africa‟s apartheid system, as it was practiced from 1948 until the dawn of the democratic dispensation in 1994, has been a subject of debate in South Africa and even beyond. Apartheid was a policy that was designed by the then ruling Nationalist Party for purposes of dividing and stratifying South Africa along racial lines - whites, blacks, coloureds and Asians. It thus promoted racial segregation and/or unequal stratification of society. In South Africa‟s hierarchy of apartheid, blacks, who constituted the majority of the population, were ironically the most destitute and segregated. Some historians believe that South Africa‟s racial policy was designed against the backdrop of Jim Crow, a similar system of racial discrimination which was instituted in the American South late in the 1890s through the 20th century. Jim Crow and apartheid are, in this study, considered as sides of the same coin; hence for the sake of convenience, the word apartheid is used to subsume Jim Crow. Although South Africa‟s apartheid system was influenced by different ideologies, for example German missiology as applied by the Dutch Reformed Church, historian Hermann Giliomee (2003: 373) insists that „the segregationist practice of the American South was particularly influential.‟ Given the ideological relationship between apartheid and Jim Crow, the present study investigates the interplay of compatibility between apartheid/Jim Crow and crime and violence as reflected in selected works of Richard Wright (African American novelist) and Athol Fugard (South African playwright). The aim of the study is firstly, to examine the works in order to analyse them as responses to apartheid and by extension colonial domination and secondly to investigate crime and violence. The three criminological theories selected for this study are strain theory (by Robert Merton), subculture theory (Edwin Sutherland) and labelling theory (Howard Becker). While criminological theory provides an empirical dimension to the study, postcolonial theory situates the study within a specified space, which is the postcolonial context. The postcolonial is, however understood, not as a demarcated historical space, but as a continuum, from the dawn of colonization to the unforeseeable future. Three postcolonial theorists have been identified for the purposes of this study. These are: Frantz Fanon, Homi Bhabha and Bill Ashcroft. Fanon‟s psychoanalysis of the colonized, Homi Bhabha‟s Third Space and hybridity as well as Ashcroft‟s postcolonial transformation are key concepts in understanding the different ways in which the colonized deal with the consequences of colonization. It has been suggested particularly in Edward Said‟s Orientalism (1978) that the discourse of orientalism creates the Oriental, as if Orientals were a passive object of the colonial adventure. This study uses Bhabha‟s and Ashcroft‟s theory of colonial discourse to argue that the colonized are not only objects of the colonial enterprise but also active participants in the process of opening survival spaces for self-realization. The various criminal activities that the colonized engage in (as represented in the selected works of Richard Wright and Athol Fugard) are in this study viewed as ways of inscribing their subjectivity within an exclusive colonial system.
- Full Text:
Desegregation and socio-spatial integration in residential suburbs in East London, South Africa (1993-2008)
- Authors: Bwalya, John
- Date: 2011
- Subjects: City planning -- South Africa -- East London , Apartheid -- South Africa -- Eastern Cape , Migration, Internal -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD (Geography)
- Identifier: vital:11504 , http://hdl.handle.net/10353/336 , City planning -- South Africa -- East London , Apartheid -- South Africa -- Eastern Cape , Migration, Internal -- South Africa -- Eastern Cape
- Description: This study used integration as the overarching conceptual framework to investigate socio-spatial integration in post-apartheid South Africa. The study adopted the embedded case study design to investigate the spatial and social aspects of integration in former white residential suburbs in East London, South Africa. Recognising that integration occurred in different registers, this study used data from the South African Property Transfer Guide (SAPTG) database to investigate spatial-temporal integration in East London‟s residential suburbs from 1993 to 2008. A total of 21,683 residential property transfers were reviewed in 46 suburbs, and transfers to Blacks were identified. The residential property transfers were mapped to identify the nature of spatial integration. To investigate social integration, in-depth personal interviews were conducted on a purposively drawn sample of residents in the three case study suburbs of Southernwood, Cambridge and Gonubie. The interviews focused on three proxy indicators of social capital at neighbourhood level. The results of the study showed that post-apartheid spatial integration in East London closely followed the class-based residential template. Contrary to predictions prior to, and following apartheid‟s demise, the study showed that spatial integration occurred without racial conflicts. The study also found that social integration in the residential suburbs reflected the neighbourhood context and personal preferences, and was highly fluid. Although feelings of racial distance were evident, there were also indications of social cohesion, which were dynamic and uneven in time and space. Based on the data and the dialectical nature of spatial and social integration, the study concluded that fragmentation and integration are likely to continue coexisting in the South African city.
- Full Text:
- Authors: Bwalya, John
- Date: 2011
- Subjects: City planning -- South Africa -- East London , Apartheid -- South Africa -- Eastern Cape , Migration, Internal -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD (Geography)
- Identifier: vital:11504 , http://hdl.handle.net/10353/336 , City planning -- South Africa -- East London , Apartheid -- South Africa -- Eastern Cape , Migration, Internal -- South Africa -- Eastern Cape
- Description: This study used integration as the overarching conceptual framework to investigate socio-spatial integration in post-apartheid South Africa. The study adopted the embedded case study design to investigate the spatial and social aspects of integration in former white residential suburbs in East London, South Africa. Recognising that integration occurred in different registers, this study used data from the South African Property Transfer Guide (SAPTG) database to investigate spatial-temporal integration in East London‟s residential suburbs from 1993 to 2008. A total of 21,683 residential property transfers were reviewed in 46 suburbs, and transfers to Blacks were identified. The residential property transfers were mapped to identify the nature of spatial integration. To investigate social integration, in-depth personal interviews were conducted on a purposively drawn sample of residents in the three case study suburbs of Southernwood, Cambridge and Gonubie. The interviews focused on three proxy indicators of social capital at neighbourhood level. The results of the study showed that post-apartheid spatial integration in East London closely followed the class-based residential template. Contrary to predictions prior to, and following apartheid‟s demise, the study showed that spatial integration occurred without racial conflicts. The study also found that social integration in the residential suburbs reflected the neighbourhood context and personal preferences, and was highly fluid. Although feelings of racial distance were evident, there were also indications of social cohesion, which were dynamic and uneven in time and space. Based on the data and the dialectical nature of spatial and social integration, the study concluded that fragmentation and integration are likely to continue coexisting in the South African city.
- Full Text: