Strategies used by the female principals to manage learner discipline in selected primary schools in the Buffalo City Education District
- Authors: Manyika, T
- Date: 2023-12
- Subjects: Women school principals , Complex organizations , School management and organization -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/28277 , vital:74098
- Description: School safety is regarded as one of the key drivers of quality teaching and learning. There is however evidence that schools worldwide experience violence and learner disruptive behaviours. The South African education system is amongst other areas, focusing on gender equity in leadership and management positions. Hence this paper explored the strategies used by female principals to manage learner discipline in selected primary schools in the Buffalo City Education District. The Complexity Leadership Theory underpinned the study in conjunction with the Intersectionality theory. Complexity Leadership Theory emphasises the identification and exploration of strategies and behaviour that nurture creativity, learning, and adaptability in the organisation. Data were collected from fourteen participants ranging from female principals, HOD and Vice Principals. Interpretive qualitative and descriptive case study design was used. Data were collected through the use of one-on-one semi-structured interviews, and document review was the second research instrument used in this study. Thematic analysis was used to analyse data and all ethical issues were observed. The participation of participants was voluntary, and anonymity was guaranteed. Some of the major findings were the participants’ use of their gender (female) as a resource in administering discipline, and their awareness and consciousness of the vulnerability of the school context. Parental involvement, community involvement and closed-circuit television (CCTV) camera systems aided the participants in maintaining learner discipline. Rewarding learners for good behaviour or good work habits (behaviourism) was discouraged due to its inability to intrinsically motivate learners to behave and accomplish goals. Instead, it was reported to be a form of a bribery system which teaches learners to work hard to receive something. The findings suggested that tertiary institutions introduce mandatory counselling courses to equip prospective teachers with necessary skills to effectively deal with issues of learner discipline in schools. , Thesis (MEd) -- Faculty of Education, 2023
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- Date Issued: 2023-12
Medicinal properties of Moringa (Moringa Oleifera Lam) leaves and the effect of its use as a supplement on goat growth performance and meat characteristics
- Authors: Moyo, Busani https://orcid.org/0000-0001-7002-7266
- Date: 2011-09
- Subjects: Moringa , Medicinal plants
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/24376 , vital:62662
- Description: The main objective of the study was to determine if feeding goats with Moringa oleifera leaves would lead to an increase in productivity and in value of the meat. The proximate, van Soet, atomic absorption spectrophotometric and soxhlet extraction methods were used to determine the nutritional value M. oleifera leaves of the South African. The in-vitro antimicrobial screening methods were used to determine antimicrobial activities M. oleifera extracts while in vitro and invivo models were used to determine the antioxidant activities of M. oleifera leaves. An evaluation of the potential of M. oleifera leaf meal as a feed supplement in terms of its effect on helminth load, goat growth performance, carcass characteristics, meat quality attributes, nutritional and consumer sensory characteristics of goat meat was done. A total of 24, eight month old goats were randomly allocated to dietary treatments of M. oleifera leaf meal (MOL), sunflower seed cake (SC) and GH (grass hay) which was the control. All the groups were fed on basal diet of grass hay ad libitum and 200g wheat bran per head per day. The MOL group was given an additional 200 g of dried M. oleifera leaves while the SC group was offered 170 g sunflower seed cake per head/day. The study showed that the dried leaves had crude protein levels of 30.3 percent, polyunsaturated fatty acids (52.21 percent), Saturated fatty acids (43.31), n-3 (44.57 percent), n-6 (7.64 percent), 19 amino acids, vitamin E (77 mg/100 g) and Beta-carotene (18.5 mg/100 g). The M. oleifera leaf extracts showed antibacterial activities against Escherichia coli, Enterobacter cloace, Proteus vulgaris, Staphylococcus aureus and Micrococcus kristinae. The supplementation of goats with MOL and SC resulted in decreased feacal larval count and lower Haemonchus contortus, Trichostrongylus colubriforms and Oesophagastum columbianum worm burdens than those in the non-supplemented goats. Goats supplemented with SC and MOL had higher average daily weight gain and heavier carcasses than those in the GH group. Higher pH1 scores were observed in chevon from GH diet than the supplemented ones. The MOL and SC supplemented goats had chevon with higher values for lightness (L*) 24 hr post-mortem than the one from the GH group. The redness (a*) values of chevon 24 hr post mortem was highest in MOL supplemented goats. Warner Bratzler shear force (WBSF) values of SC (30.1 N) and MOL (29.8 N) supplemented goats were lower than those from GH diet (32.6 N). Chevon from goats fed GH diet had significantly higher cooking losses (29.5 percent) than that from MOL (25.4 percent) and SC (25.6 percent) fed groups. It was observed that chevon from MOL and SC supplemented groups had higher crude protein (23.57 and 22.95 percent, respectively) than the one from the GH group (21.20 percent). Cholesterol levels were higher in chevon from SC (42.84) supplemented goats than those from MOL (38.76) and GH (35.63 mg). Chevon from GH and MOL group had higher (P < 0.05) proportions of PUFA, n-3, PUFA/SFA ratio and lower n-6/n-3 ratio. Mean consumer scores for first bite, aroma, flavour and juiceness were higher in the MOL group than in the GH group (P < 0.05). The acetone extract exhibited higher concentrations of total flavonoids, flavonols, phenolics. The acetone extracts depicted higher percentage inhibition against DPPH, ABTS and nitric oxide radicals which were comparable with reference antioxidant (vitamin C and BHT). The M. oleifera leaf meal increased the antioxidant activity of GSH, SOD and catalase. Moringa oleifera leaves also exhibited medicinal properties by having anthelmintic, antibacterial activities and showed antioxidant properties. It was also observed that protein supplementation improved the animal growth performance, the physico-chemical characteristics, nutritional and fatty acids composition of meat hence meeting the consumer needs. , Thesis (PhD) -- Faculty of Science and Agriculture, 2011
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- Date Issued: 2011-09