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Theses and Dissertations (Animal and Wildlife Sciences): Recent submissions
Now showing items 221-240 of 393
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(University of Pretoria, 2014)Population structure in five African beef cattle breeds in South Africa was investigated, to assess the effect of animal recording in management of genetic diversity and genetic improvement. Pedigree records of 247,173 ...
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(University of Pretoria, 2015)For any food systems to be sustainable, it needs to contribute to society and economic growth, in addition to being environmentally conscious. Sustainable eating is defined as choosing and consuming “food to meet current ...
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(University of Pretoria, 2014)In this study, 14 typical South African feedlot bulls received no beta-adrenergic agonist for the last 30 days of the finishing period (C), 14 received 120 mg R-salbutamol per animal per day for the last 30 days of the ...
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(University of Pretoria, 2014-01-10)This set of experiments evaluated the physiological responses of intensively managed ostriches to L-carnitine. In experiment 1, 32 female and 16 male Zimbabwean Blue Neck and South African Black Neck breeders (n=48 of ...
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(University of Pretoria, 2014)The prohibition of the use of growth promoting antibiotics in animal feeds within the European Union (EU) and some other countries has led to an increased interest in alternative means of manipulating rumen fermentation. ...
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(University of Pretoria, 2014)The purpose of this study was to provide baseline data on the mineral status of impala and to investigate the possibility of using impala as sentinel species for monitoring important elements that may affect livestock ...
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The Influence of dietary energy levels on subcutaneous fatty acid profiles and meat quality in sheep (University of Pretoria, 1992)This study investigated the effect of nutritional energy levels on meat quality characteristics, through effects on the fatty acid profiles of the subcutaneous fat in sheep. Two rations containing 11. 76MJ ME/kg DM and ...
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(University of Pretoria, 2013)The efficiency of utilization of dietary nitrogen can be monitored using milk urea nitrogen (MUN). Overfeeding or underfeeding of protein can be identified through the observation of deviations from target MUN concentrations. ...
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(University of Pretoria, 2013)Experiment 1 A survey on the β-Carotene status of Holstein cows in different feeding systems In order to make meaningful recommendations with regard to β-Carotene supplementation is it necessary to know whether cows are ...
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(University of Pretoria, 2013)This research was conducted in order to enable primary producers to maximize the use of cheap roughage sources while still maintaining body weight during dry winter months when the crude protein (CP) content of roughage ...
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(University of Pretoria, 2013)Ruminant feed supplements are price sensitive and are effected by the continuous fluctuation of other raw material feed prices. Therefore, improving the efficiency of production and reducing cost of supplement concentrates ...
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(University of Pretoria, 2013)The aim of this study was to evaluate the Small Ruminant Nutrition System (SRNS) model’s performance predictions for lambs under South African conditions using growth and body composition data of early- (Dorper) and ...
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(University of Pretoria, 2013)viii SUMMARY The effect of essential oils and calcified marine algae as natural alternatives to ionophore antibiotics on performance of feedlot cattle by Emile Francois Haasbroek Supervisor: Prof. L.J. Erasmus Department: ...
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(University of Pretoria, 2013)Sustainable animal production on pasture planted on rehabilitated mine land will only be possible if the optimal stocking rate for animal and pasture production is determined. A grazing trial was conducted on tall fescue, ...
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(University of Pretoria, 2014)Eco-tourism activities specifically, sometimes have very negative environmental impacts. One such activity which has been observed to have severe negative impacts is driving in dirt tracks (ungravelled natural soil) by ...
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(University of Pretoria, 2013)The paradigm shift in water quality management of South African water resources was based on current international trends. This significant move was from a previous emphasis on source management to a focus on finding a ...
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(University of Pretoria, 2013)This study was conducted to investigate the causes and the effects of breed, gender and season on carcass condemnations post-mortem in a large South African abattoir. Condemnation of carcasses as a results of animal diseases ...
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(University of Pretoria, 2013)Please read the abstract in the dissertation.
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(2013)Leopards Panthera pardus are highly adaptable large felids that persist in un-protected areas throughout South Africa. However, leopards are frequently involved in conflict with land users and subsequently killed in ...
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Ekologiese studie van 'n natuurlewebestuursplan vir die Honnet-Natuurreservaat, noordelike provinsie (University of Pretoria, 1995)Vir die wetenskaplike bestuur van natuurreservate is die toepassing van ekologiese kennis nodig om die vooraf bepaalde doelstellings te bereik. Dit is dus noodsaaklik dat die bestuurder die fundamentele ekologiese ...
Now showing items 221-240 of 393