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Browsing 1939 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 13, 1939 by Subject "Veterinary medicine -- South Africa"
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Steyn, Douw G.; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
1. Poisoning with weak and caustic alkalis is reviewed and discussed.
2. Analysis of a specimen of milk maliciously poisoned with caustic soda is described.
3. An account is given of experiments in which varying quantities ...
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Henning, M.W.; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
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Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
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Smuts, D.B.; Marais, J.S.C.; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
By means of nitrogen metabolism experiments with white fish meal on rats and sheep, it was found that the apparent and true digestibilities of the white fishmeal protein are respectively 79 and 97 percent with rats and 63 ...
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Fourie, P.J.J.; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
l. In mating a bull (7015) being a carrier of the porphyrin gene (Dr) to ten unrelated heifers, 8 calves were produced. These are all clinically normal. This is regarded as evidence that the inherited character is not ...
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Kellermann, J.H.; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
(1) Data are presented on the change in body weight and food intake of young mature rats during the first and second trials on diets deficient in minerals and vitamins ; minerals, vitamins and bulk; and proteins. Data are ...
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De Waal, H.L.; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
(1) Preliminary chemical investigations upon Lotononis laxa E and Z, a dangerously toxic cyanogenetic plant to stock and occurring in the Lady Grey district, C.P., resulted in the isolation of a fatty ester, pinitol and ...
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Rossouw, S.D.; Bosman, V.; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
The cystine content of Merino wool is approximately 12 per cent and although several research worker have studied the source and formation of this constituent, the function of cystine in Merino wool production from nutritional ...
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Smuts, D.B.; Marais, J.S.C.; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
In a study on the endogenous nitrogen excretion of immature sheep, it was found that young sheep reach their endogenous level on the 6th day, after having been on a standard ration of 14 per cent lucerne protein. The ...
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Neitz, W.O.; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
The experiments here described were undertaken in order to determine (a) the duration in sheep of immunity to heartwater and whether immunologically different strains exist, and (b) how the immunity is maintained. Among ...
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Sterne, Max; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
Guinea-pigs and rabbits can be immunized against anthrax without difficulty; mice as a rule cannot. The very interesting work of Tomcsik and Bodon (1934) and Tomcsik and Ivánovic’s (1938) on the passive immunization of ...
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Mason, J.H.; Alexander, R.A.; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
1.The five strains of rickettsia are discussed and compared according to the criteria suggested by Pinkerton (1936).
2. It· is concluded that they fall into two groups:
(a) Typhus group – endemic, murine or rat ...
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Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
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Mönnig, H.O. (Hermann Otto); Ortlepp, R.J.; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
An emulsion of tetrachlorethylene is described, which is effective against hookworms in sheep (Gaigeria and Bunostomum) and against Haemonchus, Trichostrongylus and Nematodirus. The emulsion does not cause coughing and ...
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Sterne, Max; Du Toit, P.J.
(Pretoria : The Government Printer, 1939)
A technique has been described (Sterne 1937a, 1937b) for consistently obtaining avirulent, immunogenic variants from virnulent anthrax strains. The results of field and laboratory tests with vaccines prepared from such ...