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Browsing Animal and Wildlife Sciences by Type "Dissertation"
Now showing items 1-20 of 320
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(University of Pretoria, 2018)Gastrointestinal parasitism is a major problem to livestock productivity worldwide and small ruminant production is affected the most. Resistance of gastrointestinal nematodes (GIN) to anthelmintics is a widespread ...
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(University of Pretoria, 2018)This study investigated the effects of organic and inorganic Zinc (Zn) supplementation on heat stressed, male Ross broilers. Birds were randomly assigned to 12 treatment groups, consisting of 8 replications each. Each ...
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(University of Pretoria, 2017)This study was conducted to investigate three different litter materials, namely pine shavings (PS), bio-secure, fumigated pine shavings (BS) and sunflower hulls (SH) on their physical characteristics and how this influenced ...
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(University of Pretoria, 2018)The purpose of this study was to identify genomic regions associated with carcass traits using real-time ultrasound measurements in South African Nguni cattle. The dataset contained measurements from 200 Nguni steers ...
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(University of Pretoria, 2013)An assessment of the natural resources on Chapungu Ranch, Zimbabwe, was undertaken for the purpose of incorporating this ranch into the larger Sango Ranch. The geological description was based on literature, whilst the ...
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(University of Pretoria, 2018)Calcium and phosphorus are vitally important macro minerals and are the most abundant minerals found in the broiler, playing a vital role in bone development and mineralisation. Phosphorus also plays an important role in ...
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(University of Pretoria, 2010-06-28)The Convention on International Trade in Endangered Species of Wild Fauna and Flora (C.I.T.E.S.) has always recognized Osteolaemus tetraspis osborni (Schmidt, 1919) as a geographic subspecies of the African dwarf-crocodile, ...
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(University of Pretoria, 2013-05-07)A biosystematic study of seven Afrotropical and two Oriental species of the Imicola species-group was undertaken; this group of Culicoides of the subgenus Avaritia includes C. imicola the most important vector of the viruses ...
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(University of Pretoria, 2018)Globally, dairy producers are employing precision farming practices and incorporating computer software that enables producers to manage large herds at an individual animal level. South African dairy producers have been ...
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(University of Pretoria, 2016)The harmful health effects related to TFA intake are specifically those associated with coronary heart disease (CHD), cardiovascular disease (CVD) and related diseases (EFSA, 2010; Judd et al., 1994; Mensink & Katan, 1990). ...
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(University of Pretoria, 2018)This study analysed pig carcass records from a commercial abattoir to determine the existence of variance between/within the parameters, warm carcass mass (WCM) and back fat thickness (Fat), of the South African pig carcass ...
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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, 2018)In this project the impact of Bacillus probiotics on the production performance and microbial gut diversity in weaner pigs were investigated. Two production units were used, namely individual housing units and group housing ...
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(University of Pretoria, 2011-02-09)Boran cattle provide livelihood to thousands of households in the arid and semi arid lands of Kenya. The Kenya Boran cattle breeders’ society (KBCBS) is actively involved in the improvement of the breed. Due to their ...
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(University of Pretoria, 2008-08-20)In this study the mineral composition of ash from fireplaces at rural homesteads was determined to establish if such ash could be a source of minerals to goats. The mineral composition of ash collected from homesteads in ...
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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, 2023)There is considerable pressure to eliminate the use of conventional cages in commercial layer production systems. Nonetheless, the assessment of alternative methods that can ensure the hen's ability to perform different ...
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(University of Pretoria, 2020)Ascertaining calcium (Ca) and phosphorus (P) digestibility values remain a challenge in the determination of nutrient requirements of laying hens. In recent years, limited research has been conducted in this area, and there ...
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(University of Pretoria, 2020)Traditionally, the selection of beef cattle was based on the quantitative animal breeding theory and principles. The development of estimated breeding values (EBVs) resulted in accelerated genetic progress in most traits ...
Now showing items 1-20 of 320