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Theses and Dissertations (Animal and Wildlife Sciences): Recent submissions
Now showing items 281-300 of 393
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(University of Pretoria, 2013-02-18)The aim of this study was to assess the potential nutritive value for sheep, of two drought tolerant leguminous shrubs (Cassia sturtii and Sutherlandia microphylla) in terms of chemical composition, degradation parameters, ...
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(University of Pretoria, 2009-04-15)Published research suggests that it might be beneficial to increase the amount of rumen undegradable protein (RUP) that passes out of the rumen, through manipulation of rumen fermentation to establish a lower rumen pH. To ...
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(University of Pretoria, 2011-09-22)In 2003 the Department of Health of South Africa embarked on a mandatory fortification programme of maize meal as part of the Integrated Nutrition Program (INP) to alleviate malnutrition. The aim of this study was two-fold: ...
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(University of Pretoria, 2007)Meat tenderness is regarded as the single most important characteristic of meat quality. Fifty Bonsmara feedlot steers were fed a commercial feedlot ration (10,5 MJ MElKg DM, 12% CP), supplemented with 0,15mg Zilmaxlkg ...
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(University of Pretoria, 2010-09-21)The aim of this thesis was to investigate how fiber growth of goats is determined by genotype, (purebred Angora and crossbred between Angora and Boer goat), physiological stages of the females from mid pregnancy until fifty ...
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(University of Pretoria, 2009-04-16)The aim of the present study was to determine if the breeding potential of 25-month old, extensively kept, Bonsmara beef bulls can be predicted from production data, spermatozoal characteristics and/or blood hormone ...
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(University of Pretoria, 2010-09-15)The physiological effects of etorphine, and etorphine combined with xylazine and etorphine combined with azaperone on respiratory and cardiovascular function were determined in. Boer goats. The goats were habituated to the ...
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Modelling extensive beef cattle production systems for computerised decision support in South Africa (University of Pretoria, 2009-04-16)The complicated nature of beef cattle farming necessitated the development of an effective computerised cattle management system (cattle farm planning system). This system was developed and programmed to be a planning and ...
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(University of Pretoria, 2012-09-14)The objectives of the present research were to study the factors that influence postpartum reproductive characteristics of suckling beef cows in extensive production systems in Mozambique and to develop new management ...
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(University of Pretoria, 2012-09-14)This research project consisted of five experiments. The main objective of this study was to determine the effects of restricted feeding and season on growth, carcass characteristics, meat chemical composition, reproduction ...
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(University of Pretoria, 2006-09-06)Please read the abstract in the section 00front of this document
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(University of Pretoria, 2003)The primary objective of this research was to study the effects of breed, age, season, and their interactions on semen morphological characteristics. The study was done on 329 bulls (271 Friesland and 58 Jersey) aged 12, ...
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(University of Pretoria, 2010-08-08)The current modern commercial pig is an animal that has evolved through deliberate breeding programs, controlled environmental influences and nutrition to yield a highly efficient feed converter and fertile animal. The ...
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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, 2010-09-09)Assessment of a significant number of water samples across South Africa by Casey and Meyer over a number of years, revealed that high concentrations (30- 32 mg/L) of bromine (Br) occur naturally within groundwater in South ...
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(University of Pretoria, 2008-09-23)Rumen acidosis is a metabolic disorder of ruminants, characterized by a severe drop in rumen pH. This is due to an accumulation of acids, especially lactic acid in the rumen. Lactic acid is one of the strongest acids with ...
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(University of Pretoria, 2008-09-04)In this experiment, the influence of phosphorus supplementation on growth and reproductive characteristics of beef cows in the semi-arid bushveld of South Africa was studied. The parameters in this study included weight, ...
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(University of Pretoria, 2008-09-04)Virginiamycin (V) and Ionophores, such as Poulcox (active ingredient monensin sodium), are antimicrobial feed additives approved for use in cattle to improve performance. The effect of virginiamycin on Gram positive bacteria ...
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(University of Pretoria, 2009)In dié studie is sekere aspekte van voedingswaarde van droogtebestandegewasse, tussen twee seisoene en op drie verskillende lokaliteite nl Hatfield, Mier en Lovedale, geondersoek. Die spesies wat met mekaar vergelyk is, ...
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(University of Pretoria, 2008-08-19)In recent times there has been much concern among animal product consumers about the safety and use of antimicrobial substances in the production of food for human consumption. This has been driven by the ban of the use ...
Now showing items 281-300 of 393