Browsing 1939 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 13, 1939 by Issue Date
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- Browsing 1939 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 13, 1939 by Issue Date
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Browsing 1939 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 13, 1939 by Issue Date
Now showing items 1-20 of 25
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(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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(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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(The Government Printer, Pretoria, 1939)LITERATURE on prenatal growth in mammals is reviewed. A comprehensive series of measurements was made on the genital tracts of Merino ewes, 11 non-pregnant and 38 at various stages of pregnancy, and also on the foetuses. ...
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(The Government Printer, Pretoria, 1939)In the previous article (this journal) details were given of the source and method of isolation of five strains of rickettsia. These strains have been maintained either by serial passage in guinea pigs, or by cultivation ...
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(The Government Printer, Pretoria, 1939)1. The effect of the rickettsias of rat typhus, tick-bite fever, fievre boutonneuse, and of two other tick-bite-fever-like diseases (" Hare " and "Appleton ") on the guinea-pig, rat, mouse, rabbit, dog, sheep, and ox is ...
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(Pretoria : The Government Printer, 1939)
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(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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(The Government Printer, Pretoria, 1939)The technique for determining the fibre fineness of a sample of wool as used in South Africa is outlined. The methods of cutting the fibre bundle into fragments and the mounting of these on a slide are described. The effect ...
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(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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(The Government Printer, Pretoria, 1939)Research work into heartwater, a disease of sheep, goats and cattle caused by Rickettsia ruminantium (Cowdry 1926) has been hampered to a very great extent by the lack of a susceptible small laboratory animal. Up to the ...
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(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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(Pretoria : The Government Printer, 1939)
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(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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(The Government Printer, Pretoria, 1939)The object of this preliminary note is to record the occurrence of Rickettsiosis oxina in the monocytes in blood, intima, and lung smears of two sheep sent in during January, 1939, by the Government Veterinary Officer, Mr. ...
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(The Government Printer, Pretoria, 1939)The results are presented of an experiment to ascertain whether a regular supplement of bonemeal given to calves up to weaning age would be beneficial to their growth and development, in comparison with a comparable group ...
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(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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(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 ...
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Quantitative studies upon porphyrin excretion in bovine congenital porphyrinuria (pink tooth) No. 2 (The Government Printer, Pretoria, 1939)In this paper the authors intend to record results concerning the quantitative porphyrin excretion during different times of the year by bovines suffering from congenital porphyrinuria (pink tooth) and at the same time ...
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(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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(Pretoria : The Government Printer, 1939)
Now showing items 1-20 of 25