Browsing Animal, Wildlife and Grassland Sciences by Title
Now showing items 1-20 of 98
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Alternative management systems to increase beef production under extensive conditions
(University of the Free State, 2016-06)South Africa is still a net importer of beef. Therefore, by increasing off take in the beef sector, South Africa can move towards self-sufficiency. With fertility being regarded as one of the main components influencing ... -
Animal performance and utilization of opuntia-based diets by sheep
(University of the Free State, 2008-05)English: Incremental levels of sun-dried and coarsely ground cactus pear (Opuntia ficus-indica var.Algerian) cladodes were used to substitute part of the lucerne hay in balanced diets and fed to 28 Dorper wethers. The ... -
Breed effects and non additive genetic variation in indigenous and commercial sheep in an extensive environment
(University of the Free State, 2019-06)The first part of the study compared a commercial, the Dorper as an arguably adapted commercial breed to the Namaqua Afrikaner as an unselected, indigenous, far-tail breed. The Dorper conclusively outperformed the Namaqua ... -
Causes and consequences of fenceline contrasts in Namibian rangeland
(University of the Free State, 2011-02-15)English: This study made use of the opportunity provided by fenceline contrasts in Namibia to measure differences in rangeland and learn from farmers about the inputs and outputs of management on each side of the fence. ... -
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 ... -
Characterization of rangeland resources and dynamics of the pastoral production systems in the Somali region of eastern Ethiopia
(University of the Free State, 2006-05)The study was conducted in the Somali region of eastern Ethiopia, with an arid to semiarid climate. The study aimed at the characterization of the rangeland resources, assessing the current condition of the rangeland, ... -
Comparison of genetic and immunological responses to tick infestation between three breeds of sheep in South Africa
(University of the Free State, 2016-01)The study investigated genetic parameters and immunological responses to tick infestation in three South African sheep breeds (Namaqua Afrikaner [NA], Dorper and SA Mutton Merino [SAMM]). The study aimed to estimate genetic ... -
Crude protein and mineral status of forages grown on Pellic Vertisol of Ginchi, Central Highlands of Ethiopia
(University of the Free State, 2002-11)The study was conducted at Ginchi, which is situated in the western Shoa zone of the central Ethiopian highlands. The main aim of the study was to assess the crude protein (CP) and mineral status of feeds produced in the ... -
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 ... -
The demography and population status of lions (Panthera leo) in the Mana Pools National Park, Zimbabwe
(University of the Free State, 2008-11)English: Demographics of the lion population in the Mana Pools National Park were studied between 2001 and 2007. No detailed work had previously been carried out on this subject in the park. Demographic data was obtained ... -
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 ... -
The development of breeding objectives for Holstein and Jersey cattle in South Africa
(University of the Free State, 2009-11)A sound breeding objective is the basis for genetic improvement in overall economic merit of animals. Breeding objectives for Holstein and Jersey dairy cattle breeds in South Africa were developed in the current study, ... -
The development of economic selection indices for the Simmentaler breeds in South Africa
(University of the Free State, 2004-11)English: The purpose of the first chapter was to give a short introduction to the study. Although there were exponential increases in knowledge, there are still fields of study where there is little understanding and ... -
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 dynamics of bush thickening by Acacia mellifera in the Highland Savanna of Namibia
(University of the Free State, 2014)The dynamics of bush thickening by Acacia mellifera in the arid Namibian Highland Savanna was investigated. First, a conceptual state-and-transition model was developed, based on preliminary findings, personal observations ... -
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 ...