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Theses and Dissertations (Animal and Wildlife Sciences): Recent submissions
Now showing items 181-200 of 392
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(University of Pretoria, 2016)Condensed molasses solubles (CMS) is the syrupy residue left after fermentation of molasses for ethanol production. Although it visually looks similar to molasses, it differs in nutrient composition. Condensed molasses ...
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(University of Pretoria, 2015)Both N, N-dimethylglycine (DMG) and trimethylglycine (Betaine; TMG) are intermediary metabolites in the pathway of choline-to-glycine metabolism. DMG possess non-enzymatic anti-oxidant properties and have been implicated ...
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(University of Pretoria, 2016)Cheetah are endangered for various reasons. As a result, captive care and breeding of cheetah has been done in an effort to help the survival of the species, however, captive survival rates are low. It is known that cheetah ...
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(University of Pretoria, 2016)Four studies were conducted to determine the survival of Megasphaera elsdenii NCIMB 41125 in the gastro intestinal tract (GIT) of Holstein calves after an oral dose, and evaluate its effects on ruminal fermentation, rumen ...
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(University of Pretoria, 2015)Shortage of quality feed is the major constraint in livestock production, particularly under smallholder subsistence farmer s conditions in sub-Saharan Africa. Livestock production under smallholder subsistence farmers ...
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(University of Pretoria, 2016)Biological systems are subject to oxidative stress and free radical attack. Free radicals and reactive oxygen species are formed as by-products of aerobic metabolism and redox reactions that occur naturally in living ...
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(University of Pretoria, 2016)Introduction: Nutrition education (NE) is one of the most enduring, effective and economic interventions to fight malnutrition and food-related diseases through the impartation of nutrition knowledge and skills on healthy ...
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(University of Pretoria, 2015)Vegetation assessment is a requirement for the identification and understanding of components of complex ecosystems that characterise wildlife areas. It is important that assessment methods are reliable yet practical for ...
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(University of Pretoria, 2016)As supplies of canola meal (CM) and dried distiller s grains (DDGS) increase, so does the incentive to use these feeds as protein supplements at higher inclusion levels in dairy cattle rations. However, this could have ...
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(University of Pretoria, 2015)The Large White and Landrace are the predominant pig breeds used in the South African industry. Due to consumer demands, selection of leaner pigs receive attention in selection programs. IGF2 is an imprinted gene, paternally ...
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(University of Pretoria, 2016)Feed restriction and handling of animals destined to be slaughtered have are two factors that affect meat quality negatively. Where handling of slaughter animals is inevitable, fasting is applied to meat producing animals ...
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(University of Pretoria, 2015)Broiler breeding companies continue to analyse the recommended nutrient levels of broiler diets due to the short production cycle and continuous genetic development of broilers. Modern broilers reach marketable weights ...
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(University of Pretoria, 2015)Food insecurity in South Africa has been found to be affecting both the informal and formal settlements both in the rural areas and urban areas (Oxfam, 2014). However, the level of food insecurity in South Africa halved ...
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(University of Pretoria, 2015)Large carnivores play a key role in regulating terrestrial ecosystems and their removal can cause effects that cascade through the lower trophic levels. Despite this, the geographic range and density of most large carnivore ...
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(University of Pretoria, 2015)A low calving rate (ranging from 20% to 40%) was recorded by state veterinary officials in 10 villages in the Moretele Local Municipal District in 2011. A previous study in the same area conducted in 2003 suggested that ...
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(University of Pretoria, 2015)The widespread use of artificial insemination in the pig industry has provided breeders access to genetic material from superior boars from around the world. Selection of parent stock is based on estimated breeding values ...
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(University of Pretoria, 2015)Extensive sheep farming in South Africa generally imply circumstances where roughage is the primary food source. However, when roughages form the main component in ruminant diets these diets are typically characterised by ...
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Growth and immunity of weaner piglets supplemented with dietary tryptophan, threonine and glutamine (University of Pretoria, 2015)Post-weaning mortality has a major economic implication for pig producers. Post-weaning stress is influenced by a number of factors, including the piglets inherent ability and physiological mechanisms to adapt to the ...
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(University of Pretoria, 2015)The main objective of this work was to identify potential rumen modulators or feed additives that improve fibre digestion while reducing enteric methane production from tropical feeds. The research was conducted in the ...
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(University of Pretoria, 2015)The purpose of this research was to investigate the effect of zilpaterol hydrochloride (ZH) in combination with a non-steroidal growth implant on growth and carcass characteristics of feedlot lambs. The use of ZH is common ...
Now showing items 181-200 of 392