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Faculty of AgriSciences
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Department of Animal Sciences
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Now showing items 1-20 of 98

Die aanwending van die CPM dairy model in formulering van voerrantsoene in 'n melkkudde

Vermaak, Jacobus Vermaak (Stellenbosch : Stellenbosch University, 2005-04)

ENGLISH ABSTRACT: CPM Dairy was developed to maintain amino acid balance. because the correct amino acid relationship has an influence on milk production and milk composition (Schwab e/ af. 1992, Rulquin e/ af. 1993). ...
Allometric description of ostrich (Struthio camelus var. domesticus) growth and development

Kritzinger, Werne Jacobus (Stellenbosch : University of Stellenbosch, 2011-03)

ENGLISH ABSTRACT: The ostrich industry has overcome many challenges since it originated. However, it is still vulnerable to sudden changes in customer preferences and economic cycles. As feed costs are the greatest expense ...
Alternatives to replace antibiotics in broiler diets : effects on protein utilization and production performance

Kritzinger, Magdel (Stellenbosch : Stellenbosch University, 2008-12)

ENGLISH ABSTRACT: Different substances were evaluated and compared to an antibiotic, in terms of their effect on nitrogen - and amino acid digestibilities. Two digestibility trials and one performance trial were ...
Application of the condition factor in the production of African sharptooth catfish Clarias gariepinus

Luckhoff, Paul Daniel (Stellenbosch : University of Stellenbosch, 2005-03)

In recent years there has been a renewed interest in the commercial culture of African Sharptooth Catfish. Its robust characteristics and its air breathing capabilities makes the African catfish a good candidate for ...
Assessing productivity and diversity of South African chicken genetic resources

Mtileni, B. J. (Stellenbosch : Stellenbosch University, 2011-12)

ENGLISH ABSTRACT: The current study was undertaken to determine the effectiveness of the current South African chicken conservation programmes in conserving the genetic diversity of village chicken populations. Village ...
'n Beoordeling van prestasie-evalueringsprosedures van Dorperramme onder ekstensiewe bestuurstoestande

Von Schauroth, Erich Dieter Friedrich (Stellenbosch : Stellenbosch University, 2007-03)

ENGLISH ABSTRACT: AN ASSESSMENT OF PERFORMANCE EVALUATION PROCEDURES OF DORPER RAMS UNDER EXTENSIVE MANAGEMENT CONDITIONS. During 1988 to 2000, Dorper rams (n=2565) maintained on the Kalahari Experimental Farm during ...
Breed, transport and lairage effects on animal welfare and quality of Namibian beef

Luhl, Juljane (Stellenbosch : University of Stellenbosch, 2010-03)

ENGLISH ABSTRACT: Namibia by nature is very well suited for livestock production and is a net exporter of beef. Beef is currently exported to South Africa, the European Union (EU) and Japan while market access to the ...
Determination of the nutrient requirements of breeding ostriches

Olivier, Theodore Riel (Stellenbosch : University of Stellenbosch, 2010-03)

ENGLISH ABSTRACT: The nutrient requirements for breeding ostriches are currently not well-defined. Quantification of the nutrient requirements will improve the financial wellbeing of the industry. A study of the growth ...
Die doeltreffendheid van sekere parameters ter bepaling van die weefselsamestelling van varkkarkasse

Hoffman, Louwrens Christiaan (Stellenbosch : Stellenbosch University, 1987-11)

INLEIDING: Van al die plaasdiere, is die vark die enigste spesie wat slegs vir vleisprodukte aangehou word. Alhoewel daar verskeie varkrasse in Suid-Afrika bemark word, word hierdie varke, ongeag die ras, hoofsaaklik in ...
The effect of acid buf and combinations of acid buf and socium bicarbonate in dairy cow diets on production response and rumen parameters

Calitz, Tanja (Stellenbosch : University of Stellenbosch, 2009-12)

ENGLISH ABSTRACT: The effect of Acid Buf and combinations of Acid Buf and Sodium bicarbonate in dairy cow diets on production response and rumen parameters The objective of this study was to determine the effect of Acid ...
The effect of agricultural production system on the meat quality of Dorper lambs

Claasen, Claasen (Stellenbosch : Stellenbosch University, 2008-03)

ENGLISH ABSTRACT: The aim of this study was to investigate the effect of South African production system (feedlot {FL-} or free-range {FR-}) and gender (ewes, rams or castrates) on growth and carcass characteristics of ...
The effect of an exogenous fibrolytic enzyme on forage digestibility parameters

Goosen, Liezel (Stellenbosch : Stellenbosch University, 2004-12)

ENGLISH ABSTRACT: The ruminant has the ability to utilize forages more efficiently than any other production animal. The utilization of forage fibre is an important aspect of ruminant production systems, as this is the ...
Effect of Anolyte on broiler performance

Holcroft, Joanna (Joanna Mary Steward) (Stellenbosch : Stellenbosch University, 2003-03)

ENGLISH ABSTRACT: A farm in Zimbabwe (Farm A) obtains its water for tbe poultry operations from tbe Makavusi River that is heavily contaminated with bacteria and performance results are thereby reduced. Anolyte is a Russian ...
The effect of breed type and slaughter age on certain production parameters of beef cattle in the arid sweet bushveld

Du Plessis, Izak (Stellenbosch : University of Stellenbosch, 2004-04)

ENGLISH ABSTRACT: The aim of this study was to provide scientifically founded guidelines to enhance the understanding of beef production from natural pastures in arid sweet veld regions. Cattle from four breed types ranging ...
The effect of concentrate feeding strategies on rumen parameters, milk production and milk composition of Jersey cows grazing ryegrass (Lolium multiflorum) or kikuyu (Pennisetum clandestinum) pasture

Joubert, Matthys Du Toit (Stellenbosch : Stellenbosch University., 2012-03)

ENGLISH ABSTRACT: Ruminal pH is the rumen condition that varies most. Studying the cause and effect of diurnal variation offers a means of improving ruminal conditions for rumen micro-organisms with subsequent improvements ...
Effect of cottonseed oilcake meal on ostrich growth performance, meat chemical composition and sensory attributes

Schoon, Katryn (Stellenbosch : Stellenbosch University, 2012-12)

ENGLISH ABSTRACT: This research study consists of three investigations with regard to ostrich (Struthio camelus var. domesticus) production, meat quality and the processing of ostrich meat into a value added meat product. The ...
The effect of different cropping methods on the meat quality of various game species

Laubscher, Liesel L. (Stellenbosch : University of Stellenbosch, 2009-03)

ENGLISH ABSTRACT: The production and especially the export of game meat from Southern African are steadily increasing and with this growth, it is inevitable that more emphasis is being placed on the quality of game meat. ...
The effect of different incubation temperatures on chick quality

Du Preez, J. H. (Stellenbosch : University of StellenboschStellenbosch : University of Stellenbosch, 2007-03)

ENGLISH ABSTRACT: Over the last few decades various authors have reported the influence of day old chick quality on integrated broiler industries. Although various methods of determining chick quality have been reported, ...
The effect of different levels of supplementary feed on the production of finisher ostriches (Struthio camelus) grazing irrigated lucerne (Medicago sativa) pastures

Strydom, Marline (Stellenbosch : University of Stellenbosch, 2010-12)

ENGLISH ABSTRACT: The purpose of this study was to evaluate the production of slaughter ostriches in a grazing environment at different levels of supplementary feed. Two grazing trials were conducted. In the first trial, ...
The effect of electrical inputs during beef processing on resultant meat quality

Lombard, Anthonie Christoffel (Stellenbosch : University of Stellenbosch, 2009-03)

ENGLISH ABSTRACT: The two main determinants of post-slaughter processing outcomes are rates of pH and temperature decline. Muscle pH and temperature interact continuously during rigor development to affect both the ...