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Browsing South African National Veterinary Repository by Author "Van der Wath, J.G."
Now showing items 1-9 of 9
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Thomas, A.D.; Van der Wath, J.G.; Du Toit, P.J. (Pretoria : The Government Printer, 1937)1. The objects and advantages of bone biopsy in the histological, haemocytological and biochemical study and diagnosis of nutritional deficiency diseases are enumerated. 2. The technique for such biopsies is described ...
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Quin, J.I.; Van der Wath, J.G.; Du Toit, P.J. (Pretoria : The Government Printer, 1943)From the observations made on: normal ewes as well as on spayed ewes following treatment with stilboestrol and pregnant mare serum, evidence is presented showing that seasonal anoestrus in merino ewes is closely associated ...
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Louw, J.G.; Van der Wath, J.G.; Du Toit, P.J. (Pretoria : The Government Printer, 1943)From the results of a series of metabolism studies on sheep with open rumen fistulae in which a basal ration of winter grazing was supplemented with meatmeal and increasing amounts of crushed maize it was found that: (1) ...
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Quin, J.I.; Van der Wath, J.G.; Myburgh, S.; Du Toit, P.J. (Pretoria : The Government Printer, 1938)1. The importance is stressed of a more intensive study of digestion in ruminant animals, whose food, apart from being disintegrated by enzymes liberated from the digestive tract itself, is first of all subjected to a ...
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Quin, J.I.; Van der Wath, J.G.; Du Toit, P.J. (Pretoria : The Government Printer, 1938)Experiments conducted on sheep with ruminal fistula have shown that normal ruminal movement may undergo very considerable variations from any rhythm that may be temporarily established. In this respect it is essentially ...
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Van der Wath, J.G.; Myburgh, S.J.; Du Toit, P.J. (Pretoria : The Government Printer, 1941)(1) A technique is described for the preservation and counting of ruminal infusoria. (2) Reactions of specific infusoria as well as total infusorial populations to changes in the diet of stable fed sheep were ...
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Van der Wath, J.G.; Du Toit, P.J. (Pretoria : The Government Printer, 1948)1. The only diastases present in the rumen seem to be those secreted by ruminal bacteria, which would then be responsible for the entire starch disintegration seen there. 2. In the rumen of sheep receiving a regular ...
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Van der Wath, J.G.; Du Toit, P.J. (Pretoria : The Government Printer, 1948)
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Smuts, D.B.; Du Toit, B.A.; Van der Wath, J.G.; Du Toit, P.J. (Pretoria : The Government Printer, 1941)By means of metabolism experiments on rats it was shown that the biological value of the rumen ingesta is better than that of lucerne. When rumen ingesta are supplemented by cystine their biological value is significantly ...
Now showing items 1-9 of 9