Masters Degrees (Animal Sciences)
Recent Submissions
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Development of a model for crossbred lamb production
(Stellenbosch : Stellenbosch University, 2021-12)ENGLISH ABSTRACT: Historically the sheep industry has played an important role in the South African agricultural landscape, but due to changing circumstances and growing challenges it may find its continued ... -
Water intake, nutrient utilisation, and production efficiency of selected South African sheep breeds
(Stellenbosch : Stellenbosch University, 2021-12)ENGLISH ABSTRACT: The main objective of the current study was to compare nutrient intake, water intake, nutrient digestibility, nitrogen and water balance, growth performance and carcass attributes of six ... -
A meta-analysis of the role of subpopulation analysis in the qualification and quantification of sperm sample quality, and the relationship with male fertility
(Stellenbosch : Stellenbosch University, 2021-04)ENGLISH ABSTRACT: Given the predicted increase in the world population by 2050, the expected demand for animal products places increasing pressure on livestock farmers to farm as sustainable and cost-efficient as possible, ... -
Quantification and differentiation of egg quality as affected by hen age and storage time, with the aid of near infrared hyperspectral imaging
(Stellenbosch : Stellenbosch University, 2021-04)ENGLISH ABSTRACT: The aim of the study was to investigate the effect of hen age and egg storage time on certain internal, external and proximate egg quality parameters. Additionally, near infrared (NIR) hyperspectral imaging ... -
An evaluation on the effects of three different dietary emulsifiers and the use of black soldier fly (Hermetia illucens) larvae oil on young broiler production
(Stellenbosch : Stellenbosch University, 2021-04)ENGLISH ABSTRACT: The aim of the study was to investigate the use of black soldier fly (Hermetia Illucens larvae) oil and three dietary emulsifiers in broiler diets. The first part of the study determined the production ... -
Evaluation of a lysophospholipid using two oils on performance, carcass composition and organ characteristics of broilers
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: The aim of the study was to investigate the potential to decrease the apparent metabolizable energy (AME) by including a lysophospholipid in the diet of broiler chickens. There were two oils used in the ... -
The influence of flushing diet composition on the reproductive performance of Dohne Merino (Ovis aries) ewes
(2020-12)ENGLISH ABSTRACT: The study investigated the influence of different flushing diets on the live weight, back-fat thickness, and follicle development in semi-intensively managed Dohne-Merino ewes. The different flushing diet ... -
Studies on the environmental and genetic parameters for lamb survival, growth and wool traits of the Elsenburg Dormer and SA Mutton Merino flocks
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: Environmental and genetic parameters and trends of the Elsenburg South African Mutton Merino (SAMM) and Dormer resource flocks were estimated. The breeds were also compared for lamb survival, growth, wool, ... -
The effect of extrusion with molasses and addition of chitosan or tannins on the rumen undegradable protein fraction of plant protein sources
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: Protein is one of the most expensive nutrients in livestock diets. Therefore, it is essential to pursue the efficiency of protein utilisation in ruminant diets. The inclusion of plant protein sources such ... -
Genetic analysis of heifer and cow fertility for South African Holsteins using artificial insemination records
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: Female fertility has gained significant attention in the dairy cattle industry and is increasingly being incorporated in to breeding objectives worldwide. In South Africa, genetic improvement of the trait ... -
Perceptions about commercial ostrich farming: views of consumers, farmers and secondary stakeholders
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: South Africa is the premier producer of ostrich products worldwide. The ostrich industry has recently come under scrutiny due to the global increased awareness of the welfare of production animals. This ... -
Culling-associated stress and meat quality in ungulates
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: The purpose of this investigation was to evaluate the effects of helicopter-, day- and night-culling on the ante-mortem stress experienced by sub-adult impala (Aepyceros melampus) rams and mature blue ... -
Genetic characterization of smallholder sheep flocks in the Western Cape, South Africa
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: The arid environment found in South Africa, coupled with the changing climate could present new obstacles that need to be accounted for in farming activities and practises. Smallholder farmers experience ... -
The effect of a potential protein binder on ruminal and post-ruminal protein digestion responses
(2020-03)ENGLISH ABSTRACT: The objectives of this study were to determine the effect of a potential protein binder on in sacco and in vitro protein disappearance parameters, protein solubility, degradability of soluble protein and ... -
An insight into the livelihood of small-scale pig farmers in the Western Cape, South Africa
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: The aim of this study was to gain insight into the livelihood and production characteristics of smallscale pig farmers in the Western Cape, South Africa. The objectives were to firstly compare the demographic ... -
The effect of processing on the short- and long-term viability of epididymal African buffalo (Syncerus caffer) spermatozoa
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: The Africa buffalo (Syncerus caffer) is one of the Big 5 that features strongly in the ecotourism and trophy hunting industries, and more recently, this species is sought after in game ranching operations. ... -
Meat quality characteristics of giraffe (Giraffa camelopardalis angolensis)
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Although some giraffe populations are threatened, their numbers have been seen to grow exponentially under ranched management conditions. This population growth can be attributed to the absence of natural ... -
Ruminal and intestinal digestibility of rumen protected lysine and its effect on production responses in Merino rams
(Stellenbosch : Stellenbosch University, 2020-04)ENGLISH ABSTRACT: Wool is a large export commodity in South Africa where the price is determined by supply and demand. The average clean wool price per kilogram for the 2017/2018 wool clip season was R183.84 (top lines). ... -
Quantification of springbok (Antidorcas marsupialis) meat yield and meat quality
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: This study aimed to determine the effect of subspecies, sex and intensity of culling on the meat yield and meat quality of springbok (Antidorcas marsupialis). This was done by analysing data on the carcass ... -
Evaluating silage oil from rainbow trout (Oncorhynchus mykiss) viscera as a substitute for dietary fish oil on production parameters of juvenile African catfish (Clarias gariepinus)
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Fresh rainbow trout (Oncorhynchus mykiss) viscera was used to extract fish silage oil by acid and fermentation ensiling methods. Organic acid mixtures (lactic acid x formic acid, lactic acid x propionic ...
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