Department of Animal Sciences
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The effect of fenugreek seed cotyledon extract (Trigonella foenum-graecum L.) supplementation on feedlot beef cattle production
(Stellenbosch : Stellenbosch University, 2022-12)ENGLISH ABSTRACT: Globally, beef producers are constantly improving and expanding their production systems to keep up with the demand for beef. Consumer preferences further pressure producers to reduce chemicals as ... -
Studies on the response of lambs and ewes to changes in the ambient climate owing to climate change
(Stellenbosch : Stellenbosch University, 2022-12)ENGLISH ABSTRACT: This study investigated the impact of climate instability on neonatal lamb behaviour as a proxy for lamb survival in a winter lambing season in the Western Cape, as well as the impact of increased ... -
Determining the potential of a LoRa technology approach to measure methane emission in sheep
(Stellenbosch : Stellenbosch University, 2022-12)ENGLISH ABSTRACT: As a result of their contribution to global methane (CH4) emissions, ruminants are under scrutiny, with research focusing on quantifying CH4 production to contribute to the development of CH4 mitigation ... -
The effect of milk replacer intake and level of crude protein in starter feed on dairy bull calf pre-weaning growth parameters and the carry-over effect on post-weaning growth and profitability
(Stellenbosch : Stellenbosch University, 2022-12)ENGLISH ABSTRACT: Currently worldwide, during the liquid phase, calves are generally fed conventional volumes (4 L/day) of milk replacer (MR) with ad libitum starter feed ranging between 160 g CP/kg DM and 210 g CP/kg ... -
The preservation of neonate Hermetia illucens larvae for the purpose of long-distance transportation
(Stellenbosch : Stellenbosch University, 2022-12)ENGLISH ABSTRACT: Good quality protein sources, which are economically and ecologically sustainable are scarce. Insects are proposed as a sustainable, high-quality protein alternative. Hermetia illucens larvae have ... -
Techniques used to increase the rumen undegradable protein fraction in locally produced plant protein sources
(Stellenbosch : Stellenbosch University, 2022-12)ENGLISH ABSTRACT: With pressure directed towards South African farmers to fulfill the increasing mutton and lamb demand along with increasing commodity prices, the necessity presents itself to make use of more affordable, ... -
An efficiency and economic comparison of conventional and radio frequency identification slaughter readiness methodology in commercial lamb feedlots
(Stellenbosch : Stellenbosch University, 2022-12)ENGLISH ABSTRACT: Lamb feedlots are closed intensive systems that takes advantage of high growth rates to rear lambs for carcass production and consumption. Different feedlots use different methods to select slaughter ... -
An in vitro comparison of plant‐based protein sources and their effects on feedlot lamb growth parameters
(Stellenbosch : Stellenbosch University, 2022-12)ENGLISH ABSTRACT: Protein supplements are a very costly component of animal feed and the importance of allocating high-quality protein sources that is economically viable, consistent, and sustainable is important. By ... -
Discriminating muscle type of selected game species using near infrared (NIR) spectroscopy
(Elsevier, 2019-11-02)In this study near infrared (NIR) spectroscopy was used to discriminate between different muscle types within each species of selected game animals, and to classify species regardless of the muscle. Muscle steaks from ... -
Effect of pawpaw (Carica papaya) seed meal on sex determination, growth, and survival, of Oreochromis mossambicus fry
(AquacultureHub Inc, 2018)The production of monosex tilapia populations is a potential and effective solution for the precocious breeding and indiscriminate spawning that occurs in mixed sex culture systems. This study investigated the possibility ... -
Thermal induction of tetraploidy and assessment of selected DNA quantification methods in African sharptooth catfish, Clarias gariepinus
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: Producing viable African sharptooth catfish (C. gariepinus) tetraploids has become imperative and potentially beneficial in aquaculture for mass production of sterile triploids, which can be generated ... -
Effect of feed composition and sex on feedlot performance, carcass characteristics and profitability of Dorper lambs
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: The Dorper is the most numerous of the meat sheep breeds in South Africa. However, the early maturity of the breed and its tendency to deposit localised fat at an earlier age, typically requires them ... -
Studies on genetic responses and genomic characterisation in South African and Australian sheep
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: The current scope of small stock breeding in South African (SA) Merinos is constrained. In contrast to Australia (AUS) and New Zealand, no traits indicative of animal resilience or fitness are currently ... -
The application of genomics and transcriptomics for the characterization of the genetic diversity of tick-resistance in Angus, Brahman, Nguni, and Santa Gertrudis cattle artificially infested with Rhipicephalus microplus and Rhipicephalus decoloratus
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: Tick resistance is a complex polygenic trait that is governed by immuno-genetic mechanisms that are currently not fully understood. It is, however, currently accepted that the Bos indicus, Zebu and Sanga ... -
Development of a livestock management database system towards sustainable smallholder farming systems in South Africa
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: The commercialisation of smallholder farmers has taken the lead on the development agenda of many developing countries. Invariably, the majority of smallholder livestock producers are less productive ... -
The influence of heat stress on the functionality of ovine spermatozoa
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: With the current trend in the global human population growth, the demand for animal production is predicted to increase significantly in the coming years. The increased demand for animal products ... -
The effect of feed processing and nutrient density level on the growth rate, feed conversion, rumen fermentation parameters and economy of finishing lambs
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: The primary objective of this study was to investigate the influence of feed processing on lamb performance, feedlot profitability and rumen fermentation parameters and the interaction of feed pelleting ... -
The refinement of an artificial insemination protocol in ostriches
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: This study refined artificial insemination (AI) in ostriches by conducting several studies that covered a range of topics. The first of these determined seasonal effects on male traits and suggested ... -
Ultrasound scanning and body condition scoring as aids to reproduction management of sheep
(2022-04)ENGLISH ABSTRACT: The body condition scoring (BSC) and ultrasound scanning of ewes with reference to their reproductive performance are management tools with potential to ease the management, nutrition and breeding of ... -
Ranching with sable antelope (Hippotragus niger niger) in South Africa
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: This research focuses on aspects not currently known but essential to ranch with sable antelope (Hippotragus niger niger) successfully. This includes determining the metabolizable energy requirements, ...
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