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Visitor at the dance of the abakhwetha (2): Bokleni, 1959

- Ingle, Pauline Cornwell, 1915-1999

Authors: Ingle, Pauline Cornwell, 1915-1999
Date: 1959
Subjects: Inititiation rites -- South Africa , Xhosa (African people) -- Social life and customs , Circumcision -- South Africa , Medicine, Rural -- South Africa -- Transkei , Photography -- South Africa
Language: English
Identifier: vital:11988 , http://hdl.handle.net/10353/d1000765 , Inititiation rites -- South Africa , Xhosa (African people) -- Social life and customs , Circumcision -- South Africa , Medicine, Rural -- South Africa -- Transkei , Photography -- South Africa
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Date Issued: 1959

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Visual art education narratives in context: contribution by offenders in one correctional facility in the Eastern Cape

- Potelwa, Siphe

Authors: Potelwa, Siphe
Date: 2019
Subjects: Adult learning
Language: English
Type: Thesis , Doctoral , PhD (Education)
Identifier: http://hdl.handle.net/10353/16665 , vital:40741
Description: This study sought a solution to close the gap of visual art education narratives under recognition and not taken into consideration in correctional facilities. The researcher’s original contribution to knowledge was to provide the theoretical framework as the lens of this study. This research questions the universal objective of how visual art education narratives contribute to the context of the offender’s voice of selfexpression, self-worth, personal identity and human right in a democratic South African as citizens of society. The aim and objectives were to determine if transformation is evidenced through visual art education and ascertain personal identity as a human right and self-worth for an offender. This study was a qualitative research in which perceptions of offenders in visual art education programmes are investigated in-depth regarding the programmes addressing rehabilitation, selfexpression, self-fulfilment and personal development. Eight respondents participated in this study voluntarily. The selection of respondents in this study was through purposeful sampling. Individual interviews, focus group interviews, observation, document review, open-ended interviews, and website data of correctional services were conducted to collect data. The target participants for this qualitative study were permanent employees of Department of Correctional Services and offenders found guilty of murder and sexual abuse against women and children enrolled in a programme of art education. This study found no anticipated risks to voluntary participation in this research, and the study was free from psychological harm. The study contributed and found adult learners bringing their experience and knowledge into creative artwork skills as voice of self-expression, self-worth and rehabilitation. Analysis of data and interpretation of findings revealed the results that visual art education narratives programme brought self-worth, self-expression, selfdevelopment, self-fulfilment, discipline, prevents conflict, boredom and offender recidivism. This study conclusion stressed, an approach to the solution of the adult learning visual art education in correctional centre were problems identified. It is recommended that the correctional facility, interactive relationships with other departments, and commitment should be implemented without delay
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Date Issued: 2019

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Vocational curriculum report 191(NATED) as a curriculum: a case study of three Eastern Cape TVET Colleges

- Sixabayi, Siyabonga Prince

Authors: Sixabayi, Siyabonga Prince
Date: 2016
Subjects: Vocational education -- Curricula -- South Africa -- Eastern Cape Curriculum planning -- South Africa -- Eastern Cape
Language: English
Type: Thesis , Masters , Degree
Identifier: http://hdl.handle.net/10353/5126 , vital:29089
Description: This study aimed to investigate if there are any possible gaps in the offering Vocational Curriculum Report 191, in terms of knowledge, skills and link to the world of work. This study was a case study of three Technical and Vocational Education and Training Colleges that offer Vocational Curriculum Report 191, and it was geographically limited to the province of the Eastern Cape. The five main findings from this study were that firstly, the curriculum offers theory without practice. Secondly, there is a mismatch between what is offered as curriculum at Technical and Vocational Education and Training Colleges and what the labour market wants. Thirdly, lecturers do not have the practical exposure that relates to their fields of study. Fourthly, Vocational Curriculum Report 191 does not promote self-employment of its students and lastly, the curriculum is outdated and does not comply with the criteria of current employment opportunities. The study recommends that the curriculum be reviewed and revised. Technical and Vocational Education and Training colleges need to have in site practice facilities to cater for the practical application of theoretical knowledge of students. Partnerships between Technical and Vocational Education and Training Colleges, the labour market and Sector Education and Training Authorities are strongly recommended in this study.
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Date Issued: 2016

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Voices of women who have transitioned from a shelter for survivors of domestic violence to independent living

- Moonieyan, Chrislynn

Authors: Moonieyan, Chrislynn
Date: 2018
Subjects: Family violence Shelters for the homeless Homeless persons
Language: English
Type: Thesis , Masters , MSoc
Identifier: http://hdl.handle.net/10353/12939 , vital:39407
Description: Domestic violence is a devastating social ill in South Africa and especially in the Eastern Cape. There were 12059 cases of domestic violence reported at police stations in the Eastern Cape between 2015 and 2017 (Dayimani, 2017). Domestic violence is broadly defined as any act of abuse resulting in harm or suffering experienced by women enacted by an intimate partner (Goosen & Shaik, 2008). One in four women experience physical violence in their lifetime (Rasool, 2015). Women who experience domestic violence often lack social and economic resources and may have no place to go to escape the abuse. In such cases, shelters are identified as places of safety, providing accommodation and psychosocial support to women and children who have escaped domestic violence. The aim of the study was to explore and understand the experiences of women who have suffered abuse, lived in a shelter for survivors of domestic violence and have then transitioned from life at the shelter back to independent living. Independence is defined as “the freedom to organize your own life, make your own decisions” (Hornby, 2015b) and independent living is a concept of leaving the shelter to live in the community. A phenomenological research design was adopted, with the sample of the study consisting of eight women who had resided at a shelter and three staff members from shelters for domestic violence in the Eastern Cape. Interpretive phenomenological analysis (IPA) was adopted to analyse the data that was collected from the participants during semi-structured interviews. The study found that the reasons women seek help at a shelter include the severity of the abuse, the gravity of the impact of the abuse upon their own wellbeing, the fact that the abuse is accompanied by substance abuse, and also because the children are exposed and experience the abuse. The study also found that in addition to resources such as government services and civil society organisations, the shelters themselves are most supportive to women as they leave the shelter and transition back to independent living. Lastly, the study highlighted that the challenges women face as they transition to independent living were the lack of support and the lack of social and economic resources. Recommendations based on the findings of the study are to advocate to stop domestic violence, to collaborate with various departments to combat domestic violence and lastly to fund shelters and ensure the shelter staff are adequately trained to work with survivors of domestic violence.
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Date Issued: 2018

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Vulnerability assessment of wetland ecosystems to water demand, climate variability and land-use/cover change: The case of Die Vlei wetland, Eastern Cape province, South Africa

- Gwena, Kudzanai Rosebud https://orcid.org/0000-0002-1032-8937

Authors: Gwena, Kudzanai Rosebud https://orcid.org/0000-0002-1032-8937
Date: 2021-09
Subjects: Water-supply , Climate change mitigation
Language: English
Type: Master's theses , text
Identifier: http://hdl.handle.net/10353/22688 , vital:52656
Description: Water scarcity is a major challenge in many different countries, particularly arid and or semi-arid like South Africa. Wetlands are one of the freshwater ecosystems that may assist in alleviating water scarcity because they are valuable not only as a water source for humans but also as an ecosystem of animals and plant species. However, wetlands have been experiencing rapid rates of vulnerability/risk due to alterations by population growth leading to enhanced water demand, climate variability, and human activities leading to land cover/land-use changes. Geographical Information Systems (GIS) and Remote Sensing (RS) are less financially taxing methods useful in studying water scarcity, as shown in this study. The study begins with a literature review presentation based on a desk study from predominantly academic publications and additional municipal and consultancy reports on the wetland ecosystem’s vulnerability/risk and focuses on applying GIS & RS in related studies. After that, the study conducts a vulnerability assessment using the Ramsar Convention’s wetland vulnerability assessment using the theoretical framework stages using GIS and RS technologies. The study hypothesizes that water demand, climate variability, and land-use/cover changes (LULC) are the tri-factor responsible for wetland vulnerability. It begins the assessment by first quantifying wetland water demand using the wetland water budget, ecosystem services and the Penman-Montheith-FAO (ETo) evapotranspiration index. Secondly, objectively representing climate variability on wetland vulnerability using trend analysis to measure rainfall and temperature variability. Thirdly, reconstructing LULC changes from multi-date remotely sensed SPOT imagery over ten years from 2007 to 2017 to identify and monitor impacts of trends. The vulnerability was assessed through a Principle Component Analysis (PCA) that identified relevant variables and Multi-Criteria Evaluation (MCE) to evaluate the wetland’s exposure. The study concludes that there is evidence of a possible increase in water demand whilst climate variability, which is estimated to have a 39% contribution to the wetland dynamics, is characterised by a decrease in precipitation and an increase in temperatures. Lastly, LULC trends showed a marked increase in domestic and commercial farming, and farming has been identified as a wetland stressor of note. , Thesis (MPhil) -- Faculty of Science and Agriculture, 2021
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Date Issued: 2021-09

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WAIS-IV test performance in the South African context: a comparison between existing grade 12 WAIS-III norms with grade 12 WAIS-IV for populations that were educated in former-DET schools

- Klopper, Coenraad Christoffel

Authors: Klopper, Coenraad Christoffel
Date: 2014-12
Subjects: Intelligence tests , Wechsler Adult Intelligence Scale , Psychological tests
Language: English
Type: Master's theses , text
Identifier: http://hdl.handle.net/10353/25891 , vital:64561
Description: Accurate IQ assessment in the field of psychology is a constant pursuit and an ethical requirement in the field of psychology. In the South African cross cultural context, the use of within group norms are very important in order to improve the accuracy and interpretive value of psychometric tests. This is due to differences between cultural groups in South Africa in terms of IQ test performance of which the biggest mediating factor is quality of education. Shuttleworth-Edwards et al. (2013), performed cross cultural normative research on the WAIS-III in which participants were stringently stratified for age, level of education, quality of education, race and language. The current study is a partial duplication of the WAIS-III normative study by Shuttleworth-Edwards et al. (2013). The sub-group in that study that indicated the most significant lowering relative to the US/UK standardisation of the WAIS-III was duplicated in this study and tested with the WAIS-IV. This group included participants stratified for race (Black South African), language (Xhosa speaking), level of education (Grade 12) and quality of education (previous Department of Education and Training (former-DET) schools). The WAIS-IV results of the current study were statistically compared with the WAIS-III results from Shuttleworth-Edwards et al. (2013). No statistically significant differences were found between the WAIS-III test performance and WAIS-IV test performance in terms of scaled score comparisons, index score comparisons and full scale index comparisons. Further comparisons were made between male and female and urban and rural participants. Significant differences were found between males and females on the verbal comprehension index. No significant differences were found between the urban and rural participants. , Thesis (MA) -- Faculty of Social Science and Humanities, 2021
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Date Issued: 2014-12

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Waste keratinous biomass valorization and characterization of keratinases produced by exiguobacteria species

- Dlume, Tutuka

Authors: Dlume, Tutuka
Date: 2021-02
Subjects: Factory and trade waste -- Biodegradation , Bioremediation
Language: English
Type: Master's theses , text
Identifier: http://hdl.handle.net/10353/20695 , vital:46438
Description: Keratinous wastes are emanating in a million tons, as by-products, from various agro-industrial processing plants. Consequently, they create a serious solid waste problem in the environment due to poor handling. Microbial keratinases are proteolytic enzymes that effectively participate in keratin-rich biomass hydrolyses such as feathers, nail, hair, hooves, and horns. Therefore, proper management of these wastes via recycling into useful products is ecologically imperative. Biodegradation of keratin-rich biomass has been identified as an economical and environmentally friendly way of transforming these recalcitrant agro wastes into useful products, hence the motivation for this study. Feather degrading bacterial strains previously isolated from a municipal dumpsite and coded as SSB-02 and SSB-03 was identified through 16S rDNA sequencing and phylogenetic analysis. The fermentation conditions for keratinase production were optimized. The protein and amino acids constituents of the hydrolyzed chicken feather were analyzed. The biochemical properties of the keratinase produced were determined. Also, the effect of laundry detergents on the stability of the keratinase was studied. The isolates coded as SSB-02 and SSB-03 showed a high percentage of sequence homology with Exguobacterium spp., hence they were identified as Exiguobacterium sp. FBH5 and Exiguobacterium acetylicum FHBD, respectively. Exiguobacterium sp. FBH5 showed the highest extracellular keratinase production of 934.58 ± 27.27 U/mL at 72 h of incubation; in optimized fermentation conditions that included pH (5.0), temperature (30 oC), and chicken feather (0.5percent, w/v). Similarly, E. acetylicum FHBD displayed optimal keratinase production of 1023.64 ± 25.71 U/mL at 120 h of fermentation and improved fermentation conditions that involved pH (3.0), temperature (35 oC) and chicken feathers (0.5-1.5percent; w/v). The amino acid analysis showed that arginine, aspartic acid and glutamic acid were the most abundant amino acids cleaved from the degradation of chicken feathers by Exiguobacterium sp. FBH5 at a respective concentration of 1.16, 1.28 and 1.45 (g/100g sample). Additionally, hydrolysate that emanated from E. indicum FHBD degradation of feather showed high concentrations of arginine, serine, aspartic acid, glutamic acid, and glycine at the respective concentration (g/100g sample) of 1.2, 1.12, 1.34, 1.58 and 1.29. The keratinases were optimally active at pH and temperature of 8.0 and 50 oC, respectively. EDTA and PMSF did not highly repress keratinolytic proteases' activity, and this inhibitory pattern suggests that they may belong to a mixed protease family. Keratinase from E. acetylicum FHBD was highly stable in the presence of SDS, with 99percent residual activity and displayed variable stability in other chemical agents tested. A similar stability pattern was observed with keratinase from Exiguobacterium sp. FBH5, although the enzyme lost about 40percent of its original activity in the presence of SDS. Evaluation of metal ion stability indicated that E. acetylicum FHBD keratinase was remarkably stable in the presence of Fe3+, Mg2+, Cu2+, Zn2+, and Ba2+, with residual activity of 94percent, 88percent, 89percent, 90percent, and 97percent, respectively. Similarly, Exiguobacterium sp. FBH5 keratinase was considerably stable after treatment with Co2+, K+, and Zn2+ as it displayed a residual activity of 85percent, 84percent and 93percent, respectively. The study of the keratinases stability in laundry detergents showed that E. acetylicum FHBD keratinolytic proteases was activated in the presence of Omo, Surf, Sunlight, and Pro wash after 60 min of pre-incubation compared to 30 min, with residual activity of 94 ± 2.94percent, 91 ± 2.53percent, 95 ± 2.89percent and 87 ± 2.89percent respectively. Likewise, Exiguobacterium sp. FBH5 keratinase activity was promoted after 60 min of incubation compared to 30 min, with a residual enzyme activity of 79percent, 84percent, 101percent, 103percent and 105percent and 106percent for Ariel, Surf, Prowash, Freewave, Sky and Evaklin, respectively. Therefore Exiguobacterium spp., demonstrated excellent keratinolytic potentials that could be exploited for sustainable development of bio-innovative products. The study keratinases' properties suggest their industrial and biotechnological application potentials, especially as bio-additive in the formulation of laundry detergents. , Thesis (MSc) -- Faculty of Science and Agriculture, 2021
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Date Issued: 2021-02

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Water and its microbiome: our allies or nemeses? Judge for yourself

- Okoh, Anthony I

Authors: Okoh, Anthony I
Date: 2013-11-06
Subjects: Population growth , Water usage , Urbanisation , Water conservation , Water microbiome -- waste water
Language: English
Type: Inaugural lecture
Identifier: vital:11978 , http://hdl.handle.net/10353/d1007259 , Population growth , Water usage , Urbanisation , Water conservation , Water microbiome -- waste water
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Date Issued: 2013-11-06

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Water footprint of growing vegetables in selected smallholder irrigation schemes in South Africa

- Nyambo, Patrick

Authors: Nyambo, Patrick
Date: 2014
Subjects: Water consumption , Irrigation efficiency , Rural development
Language: English
Type: Thesis , Masters , MSc Agric (Soil Science)
Identifier: vital:11964 , http://hdl.handle.net/10353/d1019775 , Water consumption , Irrigation efficiency , Rural development
Description: Knowledge of water use, through water foot printing (WF) in smallholder agriculture crop production is the key to the global fight against poverty, achievement of food security and sustainability within the world’s rural community. Water footprint of a crop can be defined as the volume of fresh water used to produce a certain crop in all the steps in the production line. This study, therefore aimed at contributing towards improvements in rural livelihoods by raising awareness of the increased productive use of green, blue and grey water in smallholder agriculture in South Africa. This was done through determination of water footprints of five vegetable crops, i.e. potatoes (Solanum tuberosum), tomatoes (Solanum lycopersicum), dry beans (Phaseolus vulgaris), cabbage (Brassica oleracea spp) and spinach (Spinacia oleracea) in the 2000-2013 period. Quantification of water footprints has been done worldwide but, in South Africa (SA) focus has mostly been on the industrial and domestic sector. Water footprint assessment framework, was used to estimate the full impact of vegetable production on water resources at Zanyokwe, Thabina and Tugela Ferry irrigation schemes as case studies. The CROPWAT@ model was used to calculate crop evapotranspiration, differentiating green and blue water. Local climatic data were obtained from SA weather services, while the crop and soil parameters were obtained from the FAO data base. Nitrogen was considered the main pollutant hence its use in the grey water footprint calculation. Generally, Thabina irrigation scheme had the highest water footprint, followed by Tugela Ferry irrigation scheme whilst Zanyokwe irrigation scheme had the lowest. Green beans had the highest water footprint at all the three irrigation schemes with Thabina irrigation scheme having the highest (3535.1 m3/ton). For Tugela Ferry irrigation scheme, the calculated WF was 2753 m3/ton whilst the lowest was observed at ZIS i.e. 2407.6 m3/ton. Cabbage had the lowest water footprint. The highest water footprint for growing cabbage was 254.5 m3/ton in TFIS, 223.1 m3/ton in TIS and the lowest was 217.8 m3/ton in ZIS. The differences observed in the WF of a crop at each scheme maybe attributed to the differences management, weather and environmental characteristics, in the three locations. Moreover, the needs for ET are related to soil type and plant growth, and primarily depend on crop development and climatic factors which are closely related to climatic demands. The grey water footprint was calculated using the recommended fertilizer application rates for all the three sites. Green beans had the highest WFgrey i.e. 373 m3/ton and the lowest was cabbage with 37 m3/ton. Potato, spinach and tomatoes had 156 m3/ton, 214 m3/ton and 132 m3/ton, respectively. Grey water footprint in this study was higher as compared to other studies, possibly because of the high rates of nitrogen fertilizers used in the calculations and the low yields farmers get. Compared with estimates from other studies, the water footprints of vegetable production within smallholder irrigation schemes was relatively high. There is therefore, a need to focus on crop management and tillage practices that will help in increasing yield while minimizing water usage.
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Date Issued: 2014

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Water governance and social equity in South Africa: a case study of Amathole District Municipality.

- Hutete, Clarity

Authors: Hutete, Clarity
Date: 2022-03
Subjects: Municipal water supply
Language: English
Type: Master's theses , text
Identifier: http://hdl.handle.net/10353/21931 , vital:51844
Description: South Africa has reformed its water governance to remedy the prominent disparities in water service provision that resulted from the legacy of apartheid. However, despite the new policy reforms and strategies adopted, inequities in water governance remain prevalent. Those residing in marginalised and poor rural areas are the most vulnerable and highly affected by this phenomenon. While this has been attributed to several factors, such as fragmentation of the water sector and lack of capacity, among other reasons, an analysis of the literature revealed that the absence of a water governance framework for social equity is highly prevalent in the context of Amathole District Municipality (ADM) where the research was conducted. Hence, the study's main objective was to develop a water governance framework for social equity that can be utilised to advise councils and policymakers on the attainment of social equity by water service providers at the local level. The study utilised the constructivist research philosophy by adopting a qualitative case study research design and an inductive research approach to address the research questions. Focus group discussions, semi-structured interviews, participant observations and document analysis were used to collect data. A total sample of thirty-four (n=34) participants was purposefully selected; twenty participants (n=20) participated in semi-structured interviews, while fourteen (n=14) participants were engaged through focus group discussions. Findings obtained from the thematic data analysis utilised revealed that while human rights principles and social equity values underpin South Africa’s water reforms, Amathole District Municipality is yet to fully absorb these foundational concepts into its water governance. The study revealed that this is largely attributed to a lack of meaningful participation, limited transparency and accountability in the processes and procedures of the municipality. Results also revealed that persistent inequities still exist in Amathole District Municipality as reflected by the unequal distribution of water services, inconsistency in services provision, lack of transparency and established procedures to guarantee procedural fairness and limited impact on interventions specifically in rural areas. Furthermore, the study revealed that the municipality’s efforts to address water inequities are highly undermined by various economic, environmental, socio- economic, and institutional governance factors. Therefore, the study recommended a Water Governance Framework for Social Equity (WGFSE) and proffered recommendations to enhance social equity for Amathole District Municipality and other municipalities with similar contexts. , Thesis (MPA) -- University of Fort Hare, 2021
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Date Issued: 2022-03

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Water resources management and its impact on small scale farming :the case of Lesotho

- Malinga, Wayne

Authors: Malinga, Wayne
Date: 2018
Subjects: Water resources development -- Lesotho Water-supply -- Lesotho Farms, Small -- Lesotho
Language: English
Type: Thesis , Doctoral , PhD
Identifier: http://hdl.handle.net/10353/9089 , vital:34256
Description: This study is premised on the assumption that empowering the small-scale farmers in securing property rights and enforcement of these rights are the prime movers of agricultural development. Logically, it follows that by empowering small-scale farmers and giving them access to resources such as credits, subsidies and extension services the state can play a mediating role in transforming the agricultural land scape in Lesotho. Unless farmers are empowered the water resources in Lesotho will continue to serve the interest of the rent-seeking elite. Given the nature of the issues under investigation, the mixed research methodology (the use of both qualitative and quantitative methods) was used as a method of inquiry in order to get a deeper understanding of the phenomenon of water resources management and its subsequent impact on small scale farming in the rural areas of Lesotho. Both methods played a complimentary role by capitalising on both their strengths and weaknesses so as to provide various dynamics and linkages between the two variables of water resources management and small scale farming. The material condition of small scale farmers is intrinsically associated with the active state mediation in agriculture. Yet, the adopted Integrated Water Resources Management (IWRM) approach is still to materialise. This thesis, thus, argues that there is a need for a more holistic integrated water resources management framework that is livelihoods based and re-emphasises the need for conserving the ecosystem. Therefore, implementing a more holistic integrated water resources management approach is critical and vital in improving agricultural production and subsequently the livelihoods of small scale farmers and households. Although this thesis used Lesotho as the case study, it is hoped that the findings may provide tentative answers for other Sub-Saharan countries on how to properly and efficiently manage water resources so as to boost agricultural production amongst small scale farmers in order to improve human conditions and promote sustainable development in the rural areas.
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Date Issued: 2018

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Water restriction and vitamin c supplementation on Xhosa goats during summer: Effect on growth performance, blood biochemical profile, nutrient balance, carcass characteristics and meat quality

- Akinmoladun, Oluwakamisi Festus https://orcid.org/0000-0001-6462-374X

Authors: Akinmoladun, Oluwakamisi Festus https://orcid.org/0000-0001-6462-374X
Date: 2020-08
Subjects: Goats -- Nutrition , Goats -- Feeding and feeds
Language: English
Type: Doctoral theses , text
Identifier: http://hdl.handle.net/10353/22710 , vital:52664
Description: This study aimed to evaluate the effect of single and extra vitamin C (VC) supplementation on water-stressed Xhosa goats during the summer by evaluating their growth performance, blood biochemical profile, nutrient balance, carcass characteristics and meat qualities. The objectives were to assess the effect of water restriction and vitamin C supplementation by evaluating: firstly, growth performance, heat tolerance responses, and blood metabolites; secondly, intake, nutrient digestibility, nitrogen and mineral balance; thirdly, stress indices, carcass characteristics and meat qualities parameters and lastly, fatty acid profile, oxidative stability of lipids and sensory attributes were evaluated. To achieve these objectives, forty-two (42) goats were divided equally into seven treatments (75-day trial); without water restriction (W0, control); water restriction of 70percent of ad libitum water intake WI (W70); water restriction of 50percent ad libitum WI (W50); water restriction of 70percent of ad libitum WI plus 3g VC daily (W70+); water restriction 50percent of ad libitum WI plus 3g VC daily (W50+); water restriction of 70percent of ad libitumWI plus 3g VC and extra 5gVC given every eight-day (70++); water restriction of 50percent of ad libitum WI plus 3g VC and extra 5gVC given every eight-day (W50++). In the first objective, growth performance parameters, body condition scores, rectal temperature, respiratory rate, heat tolerance response parameters and blood metabolites were measured.Weight loss due to water restriction was reduced by VC supplementation in treated groups. The attenuation effect of VC was significant (P<0.05) in responses to respiratory rate (RR), Na+, K+, Mg2+, Cl-, Ca2+ and urea. Supplementation of VC (either single or multiple) did not (P>0.05) improve the effect of water restriction on body condition scores (BCs), FAMACHA©, glucose, globulin, alanine aminotransferase (ALT) and high-density lipoprotein (HDL). In the second objective, intake, nutrient digestibility, nitrogen and mineral balance were evaluated. The reduced nutrient intake was similar (P>0.05) irrespective of water restrictions and VC supplementations. Water-restriction levels did not affect nutrient intake/metabolic weight. Retained nitrogen increased with water-restriction levels but not influenced by VC. NH3-N decreased with the levels of water restriction while the pH was similar across the water restricted groups. Supplementation of VC had no effect (P>0.05) on apparent digestibility and digestible nutrients induced by water restriction levels. The amount of Ca, K, Mg retained increased (P<0.05) with water-restriction levels. In the third objective, stress indices, carcass characteristics and meat quality parameters were evaluated. The level of plasma cortisol concentration due to water stress was lessened (P<0.05) by VC. Follicle stimulating hormone (FSH), Luteinizing hormone (LH) and insulin were not affected (P>0.05) by levels of water restriction. The hot and carcass weights were lower (P<0.05) in W70+ and W50+ compared to W70 and W50 respectively. Vitamin C treated goats had higher redness (a*) compared to W70, W50 and W0. The shear force and cooking loss increased (P<0.05) with water restriction levels, while thaw loss, pH45min and pH24h were not affected by water restriction levels. In the final objective, the treatments did not affect (P>0.05) the oxidative stability of lipids (TBARS). The moisture and fat content in the water restricted groups were lower (P<0.05) than W0. The consumer meat sensory appearance decreased (P<0.05) with levels of water restrictions. Regardless of VC concentration and supplementation, vaccenic, and docosahexaenoic acid increased (P<0.05) while linolenic acid decreased as the water restriction levels increased. Nonetheless, treatment did not affect (P>0.05) the saturated and unsaturated fatty acids. These studies showed that suboptimal water intake negatively affects the growth performance and nutrient intake of Xhosa goats. However, the reduction in body weight loss and decreased plasma cortisol (chief stress hormone) concentration following vitamin C supplementation (especially at a daily single dose [3g/d]) may well reduce the effect of water stress in goats. , Thesis (PhD) -- Faculty of Science and Agriculture, 2020
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Date Issued: 2020-08

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