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Browsing Research Articles (Animal and Wildlife Sciences) by Issue Date
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Meissner, H.H. (Heinz); Van Niekerk, Willem A.; Paulsmeier, D.V.; Henning, P.H.
(South African Society for Animal Science, 1995)
Research on ruminant nutrition in South Africa is reviewed for the decade1 985/1995. The review covers the following topics: feed requirements and forage preferences in relation to carrying capacity, intake measurement ...
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Van Ryssen, J.B.J.; Coertze, R.J. (Roelof Johannes); De Villiers, J.F.
(South African Society for Animal Science, 1999)
The investigation entailed four trials in which selenium (Se) was supplemented to lambs grazing kikuyu (Pennisetum clandestinum) pastures during two summer periods or Italian ryegrass (Lolium multiflorum) pastures during ...
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Van Ryssen, J.B.J.; Coertze, R.J. (Roelof Johannes); De Villiers, J.F.
(South African Society for Animal Science, 1999)
The selenium (Se) status of lambs grazing kikuyu (Pennisetum clandestinum) or ryegrass (Lolium multiflorum) in the KwaZulu-Natal Midlands was determined during four trials and their growth response to Se supplementation ...
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Webb, E.C. (Edward Cottington); Casey, Norman Henry; Bosman, M.J.C.
(South African Society for Animal Science, 1999-01)
The aim of this research was to study the effect of high-maize diets and pelleting on the accumulation of lutein pigments and appearance of the subcutaneous fat in Dorper and SA Mutton Merino wethers. High and medium energy ...
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Van Ryssen, J.B.J.
(South African Society for Animal Science, 2001)
Available information on the selenium (Se) status of grazing herbivores in South Africa is reviewed and collated in the form of a geographical distribution map. Marginal to acute Se deficiencies have been reported to occur ...
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Van Ryssen, J.B.J.; O'Dell, E.D.
(South African Society for Animal Science, 2006)
A dose-response trial was conducted with dairy cows on six farms in the Ixopo district of the Midlands of KwaZulu-Natal. Up to 30 cows per farm received a single subcutaneous injection of 5 mL of a long-acting / slow-releasing ...
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Hassen, Abubeker; Gizachew, L.; Rethman, N.F.G.; Van Niekerk, Willem A.
(NISC, 2007-03)
In the densely populated mixed farming areas of western Ethiopia, the integration of forages with food crops may be crucial to the achievement of sustainable crop and livestock production. This study investigated the effects ...
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Nel, J.A.J.; Somers, Michael J.
(The Southern African Wildlife Management Association, 2007-05)
Cape clawless otters, Aonyx capensis,are widely distributed in South Africa, as elsewhere on the continent. They occur in a wide variety of environments and most aquatic habitats, from freshwater lakes to the marine ...
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Seifu, Eyassu; Donkin, Edward Francis; Buys, E.M. (Elna Maria)
(Elsevier, 2007-05)
This study was conducted to determine the potential of lactoperoxidase (LP) for the diagnosis of subclinical mastitis in goats. The activities of LP and somatic cell counts (SCC) were determined in the milk of clinically ...
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Karzis, Joanne; Donkin, Edward Francis; Petzer, Inge-Marie
(Agricultural Research Council, ARC-OVI and the University of Pretoria, 2007-06)
The California Milk Cell Test (CMCT) and somatic cell counts (SCC) on their own were not reliable methods in the identification of subclinical mastitis in the dairy goats studied and should be accompanied by microbiological ...
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Karzis, Joanne; Donkin, Edward Francis; Petzer, Inge-Marie
(Agricultural Research Council, ARC-OVI and the University of Pretoria, 2007-09)
The length of the antibiotic withdrawal period after intramammary treatment was influenced by the
milk yield of dairy goats during this trial. Shorter withdrawal periods were seen in relatively high yielding
dairy goats ...
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Karzis, Joanne; Donkin, Edward Francis; Petzer, Inge-Marie
(Agricultural Research Council, ARC-OVI and the University of Pretoria, 2007-09)
Intramammary antibiotics are registered and tested for use in dairy cattle. This study investigated
withdrawal periods of three intramammary antibiotics (Curaclox LC [Norbrook Pharmacia AH]), Spectrazol
Milking Cow ...
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Karzis, Joanne; Donkin, Edward Francis; Petzer, Inge-Marie
(Agricultural Research Council, ARC-OVI and the University of Pretoria, 2007-12)
The aim of this study was to determine withdrawal periods (WP) and tissue irritation after administration
of three intramammary antibiotics [Curaclox LC (Norbrook (ARK AH)], Spectrazol Milking Cow
(Schering-Plough AH) ...
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Malleson, Evelyn Rhoda; Meeske, R.; Erasmus, Lourens Jacobus; Van Niekerk, Willem A.; Coertze, R.J. (Roelof Johannes)
(South African Society for Animal Science, 2008)
This trial was conducted to test the hypothesis that early lactation cows grazing ryegrass pasture and receiving maize and mineral supplementation could respond to additional supplementation with a protein source such as ...
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Rautenbach, Esmari; Van Ryssen, J.B.J.; Van Niekerk, Willem A.
(South African Society for Animal Science, 2008)
Samples of kikuyu foggage (standing hay) were collected in northern KwaZulu-Natal from five adjoining paddocks to measure the changes in nutrient composition of the foggage as winter progressed. Leaves and stems were ...
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Robinson, P.H.; Erasmus, Lourens Jacobus
(Elsevier, 2008)
Feeding experiments that used lactating Holstein cows, from peer review publications since 1990, were used to determine the ability to predict production responses of lactating dairy cows to feeding Saccharomyces cerevisiae ...
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Simela, Langelihle; Webb, E.C. (Edward Cottington); Bosman, M.J.C.
(South African Society for Animal Science, 2008)
Consumer sensory evaluations of oven-roasted goat and sheep m. longissimus dorsi samples were conducted in two series to determine the acceptability of chevon from indigenous South African goats to consumers. Chevon samples ...
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Van Marle-Koster, Este; Hefer, Charles Amadeus; Nel, Louis Hendrik; Groenen, M.A.M.
(South African Society for Animal Science, 2008)
In this study microsatellite markers were applied to investigate the genetic diversity and population structure of the six local chicken lines kept in the "Fowls for Africa" program, for better clarification of parameters ...
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Stapelberg, F. Hein; Van Rooyen, Margaretha W.; Bothma, Jacobus du P.; Van der Linde, Michael J. (Mike); Groeneveld, Hendrik T.
(South African National Parks, 2008)
Springbok behavioural ecology in the Kalahari was examined with the use of public questionnaires and field forms. Springbok favoured grass and forbs overall more than shrubs and trees, but diet selection was influenced by ...
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Van Rooyen, Margaretha W.; Van Rooyen, Noel; Bothma, Jacobus du P.; Van Den Berg, Hendrik M.
(South African National Parks, 2008)
A landscape map of the Kalahari Gemsbok National Park is presented. Mapping is at a finer scale than previous vegetation and habitat maps for the same area. The landscapes were grouped into seven large classes and a total ...