Browsing Masters Degrees (Animal, Wildlife and Grassland Sciences) by Title
Now showing items 3-22 of 64
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Characterization and cryopreservation of semen of four South African chicken breeds
(University of the Free State, 2009-11)The aim of the study was to characterize and evaluate the quality of fresh semen of 4 breeds of chicken and the susceptibility of cockerel semen to a cryopreservation protocol, assessed microscopically for sperm motility ... -
Characterization and cryopreservation of South African unimproved indigenous goat semen
(University of the Free State, 2010-05)Semen from 7 South African unimproved indigenous bucks that were successfully trained from a group of 10 bucks for semen collection with the aid of an artificial vagina (AV) was characterized and then cryopreserved, using ... -
Characterization of breed additive and heterosis effects in beef cattle using experimental results
(University of the Free State, 2011-09)The objective of this study was to infer direct and maternal additive effects and direct and maternal heterosis effects for growth, fitness and carcass traits in beef cattle using least squares means estimated from ... -
Cryopreservation of South African indigenous ram semen
(University of the Free State, 2012-05)Semen was collected from the indigenous Damara, Namaqua Afrikaner, Pedi and Zulu rams. Hundred and twenty eight (128) ejaculates were collected throughout the entire study, with semen being collected twice a week (every ... -
The degradable protein requirements of beef cattle consuming winter forage hay from the pure grassveld type
(University of the Free State, 2010-05)A trial was conducted to determine the total rumen degradable protein intake (RDPI) required to maximise the digestible organic matter intake (DOMI) of beef cows consuming low quality grass hay from the Northern variation ... -
Determination of some blood parameters in the African lion (Panthera leo)
(University of the Free State, 2008-11)The goal of this study was to generate a database of laboratory results for African lion (Panthera leo) blood to obtain reliable reference ranges to augment what is currently available in literature. Also to investigate ... -
Dietary fibre requirements of feedlot lambs
(University of the Free State, 2008-05)No abstract available -
Die doeltreffendheid van proteïen- en energiebenutting deur vleisvarke
(University of the Free State, 1972)Abstract not available -
The ecological planning of Doornkloof Nature Reserve, Northern Cape Province
(University of the Free State, 2014-01)The successful and effective management of conservation areas can only be achieved with access to sound environmental data. The Doornkloof Nature Reserve (DNR) in the Northern Cape Province, was in need of such data which ... -
The effect of Coryne bacterium cutis lysate to control somatic cell counts in dairy cows
(University of the Free State, 2011-09-20)English: The main aim of this study was to evaluate the effectiveness of repeated inoculations of a Corynebacterium cutis lysate (Ultra-Corn®) - a non-specific immune-stimulant, to reduce the milk SCC in commercial dairy ... -
The effect of dietary lipid saturation and antioxidant sources on performance and meat quality of lambs
(University of the Free State, 2014-05-27)English: A study was conducted to investigate the influence of antioxidant source and fatty acid saturation in a standard finishing diet on apparent digestibility, production performance, fatty acid composition and oxidative ... -
Effect of dietary lipid saturation on layer production and egg quality
(University of the Free State, 2012-07)English: A study was conducted to investigate the effects of dietary lipid saturation on nutrient digestibility, egg production and egg quality characteristics of laying hens during peak production (≤ 42 weeks of age). ... -
Effect of different cryodiluents on Nguni bull semen viability and in vitro fertilizing capacity
(University of the Free State, 2010-11)This study was aimed at evaluating the effects of different extenders and cryoprotectants on the quality of Nguni bull semen after cryopreservation, and to evaluate the performance of frozen-thawed Nguni bull semen in ... -
Effect of different dietary energy levels on productive and reproductive traits in Dorper rams
(University of the Free State, 2008-02-19)English: A study was conducted to evaluate the effects of different dietary energy levels on the productive (ADG, FCR, body weight, carcass) and reproductive (scrotum, testes, semen) characteristics of young Dorper rams. ... -
The effect of different milk pricing schemes on a selection index for South African Holstein cattle
(University of the Free State, 2002-11)English: A total of 150673 first lactation records of South African Holstein lactating cows were used to estimate the genetic parameters of milk (MY), butterfat (BFY), and protein (PRY) yields, and butterfat (BFP) and ... -
The effect of NDF content in finishing diets on performance and meat quality of lambs
(University of the Free State, 2016-02)English: A study was conducted to investigate the effect of incrementally increasing NDF levels of finishing diets on apparent digestibility, production performance, FA composition, oxidative stability and tenderness of ... -
The effect of season and nutrition on the reproductive potential and sexual characteristics of Boer goat bucks
(University of the Free State, 2001-12)English: A study to evaluate the effect of season (ambient temperature, daylight length and relative humidity) and nutrition on the reproductive potential and sexual characteristics of young Boer goat bucks was carried ... -
The effects of breed and housing system on the production and reproduction of weaner piglets in an outdoor pig unit
(University of the Free State, 1995-08)Outdoor pigfarming is a concept which (within the 20th century) had its origin (revival) in the early 1950s in England. Today approximately 15% of all breeding sows in England are kept out of doors while in South Africa ... -
Die effek van die vervanging van vismeel met alternatiewe proteïenbronne in diëte van baber (Clarias gariepinus) litlinge
(University of the Free State, 2010-10-23)Afrikaans: Intensiewe visproduksie benodig voere met ‘n hoë proteïeninhoud (Hecht, Uys & Britz, 1988). Voer is gewoonlik die grootste veranderlike koste-item in kommersiële produksie en daarom word die winsgewendheid van ... -
Die effek van die vervanging van vismeel met alternatiewe proteïenbronne in diëte van baber (Clarias gariepinus) litlinge
(University of the Free State, 2008-05)Afrikaans: Intensiewe visproduksie benodig voere met 'n hoë proteïeninhoud (Hecht, Uys & Britz, 1988). Voer is gewoonlik die grootste veranderlike koste-item in kommersiële produksie en daarom word die winsgewendheid van ...