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Theses and Dissertations (Animal and Wildlife Sciences)
Recent Submissions
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Engelbrecht, Colleen
(University of Pretoria, 2023)
Although the market price of maize depends on environmental and political factors, thus deeming it variable, South Africa uses maize as the primary energy concentrate in ruminant diets, providing the energy for high-performance ...
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Van den Bergh, Natasha
(University of Pretoria, 2024-07)
From the 1950s to the 1960s crocodilians were hunted for their skins, which led to many wild populations being killed. Subsequently, all crocodilians were added to Appendix I or II of the Convention on International Trade ...
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Lupton, Naomi
(University of Pretoria, 2024-07-24)
The purpose of this research was to study the effects of different stunning systems on the welfare of pigs in South African abattoirs. Four stunning systems were evaluated: 84% CO2, emergency head-only electrical, standard ...
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Herbst, Carla
(University of Pretoria, 2024-09-05)
Currently there are only two northern white rhinoceros left in the world, both are females. The decline in numbers, to the point of extinction, can be attributed to poaching, habitat destruction and poor reproductive ...
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Van Tonder, Mariska C.
(University of Pretoria, 2024-02-12)
Macroalgae are, as of yet, an untapped source of nutrients as well as a potential means by which to improve the sustainability of ruminant production. In this study the chemical composition and in vitro digestibility of ...
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Schoeman, Andre Joseph
(University of Pretoria, 2024-07-22)
The major feed ingredients used in broiler feed formulation are deficient in calcium (Ca), therefore Ca is supplemented, predominantly in the form of limestone, to meet the bird’s requirements. Previous research has ...
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Alberts, Daniélle
(University of Pretoria, 2024-03-19)
The South African Bonsmara, a Sanga-derived composite breed, originally developed to be genetically composed of five-eighths Afrikaner (Sanga subspecies) and three-eighths Hereford and Shorthorn, is well-adapted to the ...
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Gomo, Maxman
(University of Pretoria, 2024-02-23)
Climate change has become a major factor influencing beef production systems. Sanga cattle are a unique genetic resource renowned for their adaptability to diverse climatic conditions. The advent of genomic technologies ...
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Hasewinkel, Andrea Joyce
(University of Pretoria, 2023-10-08)
For a methane mitigation strategy to be sustainable it must either have no affect on product quality or have an added cobenefit in terms of improving the quality of meat. This study evaluated the effect of Acacia mearnsii ...
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Nkadimeng, Marble
(University of Pretoria, 2024-02)
Smallholder beef cattle farming in South Africa is characterized as an important free-range farming system with the potential to alleviate poverty and up-lift the economy of rural communities. In this farming system, ...
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Ibrahim, Shehu Lurwanu
(University of Pretoria, 2024)
The significant contribution of the livestock subsector to global warming and dietary energy loss as a result of enteric methane emission has drawn the attention of contemporary ruminant nutritionists to engage in more ...
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Croucamp, Chantelle
(University of Pretoria, 2023-08-30)
Genomic differences between geographically separated Hereford populations may be characterised by using genomic diversity parameters, providing insight into different genes responsible for variation in traits of economic ...
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Sithole, Phillipine
(University of Pretoria, 2023)
South Africa (SA) has a diverse climate that poses potential challenges for future beef production. Different composite breeds that combine the superior growth and beef-producing potential of the European Bos taurus breeds ...
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Basson, Annie
(University of Pretoria, 2023)
The genes of the muscle calpain system are the most important genes that affect beef tenderness and research on associations of these genotypes with beef quality traits in South African beef cattle is limited. Beef quality ...
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Visser, Charné
(University of Pretoria, 2023)
This study utilized a landscape genomic approach to investigate growth performance in Bonsmara cows from three South African provinces, Eastern Cape, Free State and North-West. Landscape genomics seeks to investigate ...
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Mdaka, Mamphasha Phina
(University of Pretoria, 2023)
South African smallholder farmers help reduce rural poverty and famine. Smallholder farmers in remote places have several obstacles that limit their growth and food security contributions compared to commercial farmers. ...
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Masemola, Nthabiseng Innocentia
(University of Pretoria, 2022)
High rigor mortis temperature carcass conditions occur when the pH drops below 6.0 while the temperature is still above 35ﹾC. The aim of this research was to find out if there is an increase in the prevalence of high rigor ...
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Sarrimanolis, Emmanuela
(University of Pretoria, 2023)
The broiler industry faces a growing pressure to reduce antibiotic growth promotors (AGP) from broiler feed due to public concern and the threat of antibiotic resistance. This has caused an upsurge in studies relating to ...
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Ibrahim, Taofik Adam
(University of Pretoria, 2023)
A series of in vitro and in vivo experiments were conducted to evaluate the antimethanogenic properties of four medicinal plants (Aloe vera, Jatropha curcas, Moringa oleifera, and Piper betle) extracts as alternative rumen ...
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Zeru, Addisu Endalew
(University of Pretoria, 2023)
Developing healthier and more practically applicable intervention strategies for methane (CH4) inhibition emitted from ruminants has been a priority issue globally. Among the strategies, the use of natural medicinal plants ...
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