Browsing 1946 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 21, Number 1, 1946 by Type "Article"

Browsing 1946 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 21, Number 1, 1946 by Type "Article"

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  • Avirulent anthrax vaccine 
    Sterne, Max; Du Toit, P.J. (Pretoria : The Government Printer, 1946)
    More than 30 million doses of anthrax vaccine made from avirulent uncapsulated variants have been used in South Africa. The same vaccine is used for all domestic animals, and the results far surpass those obtained with the ...
  • The biological values of the proteins of some South African (whole seed) maize varieties 
    Myburgh, S.J.; Du Toit, P.J. (Pretoria : The Government Printer, 1946)
    1. The biological values of yellow maize and white maize are given for some eleven varieties grown under South African (summer rainfall) conditions. 2. The results indicate that there exists a significant difference in ...
  • The familial incidence of spontaneous osteopetrosis gallinarum 
    Bronkhorst, J.J.; Coles, J.D.W.A.; Du Toit, P.J. (Pretoria : The Government Printer, 1946)
    Thirty-nine spontaneous cases of osteopetrosis have been studied in the Onderstepoort experimental flock of fowls, and the disease has shown a striking tendency to affect some families more than others. Evidence has been ...
  • Further investigations into immunization of cattle against rinderpest 
    Mitchell, D.T.; Le Roux, P.L.; Du Toit, P.J. (Pretoria : The Government Printer, 1946)
    1. Kabete goat virus was not transmitted from reacting to susceptible cattle under conditions of close contact. 2. A single doubtful transmission was recorded under conditions of open grazing. 3. A febrile condition ...
  • On the etiology of epizootic or infectious equine abortion 
    Henning, M.W.; Du Toit, P.J. (Pretoria : The Government Printer, 1946)
    1. Two outbreaks of infectious equine abortions are reported; both with a very high abortion incidence. 2. In the majority of the abortions studied the foetal organs were found to be extensively invaded by S. abortus-equi ...
  • Recent investigations into the toxicity of plants, etc., no. XV 
    Van der Walt, S.J.; Steyn, D.G.; Du Toit, P.J. (Pretoria : The Government Printer, 1946)
    Of the 18 plants investigated the following four plants were, according to the literature available to the authors, for the first time proved to be toxic: Tetragonia Schenkii Schinz., Encephalartos Lehmanii (E. & L.) Lehm., ...
  • A study of the compressibility of wool, with special reference to South African merino wool 
    Van Wyk, C.M.; Du Toit, P.J. (Pretoria : The Government Printer, 1946)
    1. A study has been made of the resistance offered by wool samples to compression at 65 per cent. relative humidity and 70°F. (21.1°C.) temperature. The study has been based mainly on results obtained with the "Pendultex" ...