Browsing 1952 Onderstepoort Journal of Veterinary Research, Volume 25, Number 3 & 4, 1952 by Issue Date

Browsing 1952 Onderstepoort Journal of Veterinary Research, Volume 25, Number 3 & 4, 1952 by Issue Date

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  • Groenewald, J.W.; Myburgh, S.J.; Louw, J.G.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    (1) In a continuation of the study of the digestibility of the same lucerne hay by the same steers at different times further evidence of a period influence on digestibility was obtained. This influence could be reduced ...
  • Kaschula, V.R.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    When virus was dosed per os with virulent Newcastle disease virus and daily examinations were made of virus in their pooled faeces, virus was recovered on the 12th day. No H.I antibodies were produced. The challenge ...
  • Jansen, B.C.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    (1) The presence of Eperythrozoon parvum in a splenectomised pig at Onderstepoort is recorded. (2) Preliminary studies on the transmission of this parasite suggest that Haematopinus suis may be a vector.
  • Weiss, K.E.; Haig, D.A.; Alexander, R.A.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    1. The value of aureomycin in the treatment of heartwater has been established. It is considerably more effective than the sulphonamides. 2. The minimal therapeutic dose for sheep appears to be 2•5 mg. per lb. administered ...
  • Polson, A.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    Since there is no reason to doubt the generally accepted conception that the concentration of ƴ globulins is an accurate index of humoral immunity, it may be concluded that in bovines there is no transplacental ...
  • Sterne, Max; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    The efficiency of Muir's capsule stain could be much increased by adding a surface-active agent (CTAB) to the primary carbol-fuchsin stain, and by using 0•1 per cent. alkaline methylene blue as a counter stain. Heating ...
  • Fiedler, O.G.H.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    D.D.T. and its related compounds seem to be the only group of the new contact insecticides against which the blue tick has not been able to build up any resistance. Toxaphene as well as Parathion are definitely less ...
  • Clark, R.; Wessels, J.J.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    It has been shown that the concentration curve of sulphanilamide in the blood of sheep after oral dosing is profoundly influenced by the basic diet and by starvation. In view of this and other similar findings, it is ...
  • Jansen, B.C.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Pretoria : Government Printer, 1952)
    (1) A new species of protozoan parasite in the Cape dassie is described for which the name Babesia thomasi is proposed. (2) This parasite is only slightly pathogenic for normal animals but fatal for splenectomised Cape ...
  • Clark, R.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    It has been shown that Acovenoside A. is a typical cardio-active glycoside in both its pharmacological and toxicological actions. It is highly cumulative. either materially or functionally, and by prolonged action can ...
  • Anonymous; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
  • Myburgh, S.J.; Louw, J.G.; Groenewald, J.W.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    Employing an improved nitrogen balance method the influence of mild heat treatment on the digestibility and biological value of a mixture of plant proteins has been determined. The heat treatment resulted in a small ...
  • Kaschula, V.R.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    The use is described of Beaudette's Roakin strain live virus intra-ocularly on fowls previously vaccinated with an aluminium hydroxide adsorbed formalinized chick embryo vaccine. Good response to this combination was ...
  • Fourie, P.J.J.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    In testing the Onderstepoort herd of experimental animals, totalling 224 animals, 10 positive reactors were found in 1949. Since tuberculosis was eradicated from this herd in 1940 by slaughtering all reactors and doubtful ...
  • Jansen, B.C.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Pretoria : The Government Printer, 1952)
    The presence of Leucocytozoon in three and Haemoproteus in two members of the family Columbidae is recorded.
  • Louw, P.G.J.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    (1) A cardiac glycoside, transvaalin, with molecular formula C₃₆H₅₂O₁₃, was isolated from Urginea burkei Bkr. (2) Transvaalin has the typical raticidal properties of scilliroside when dosed per os or injected ...
  • Louw, P.G.J.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
  • Truter, G.J.; Louw, J.G.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    A method of preparing low-fluorine water solutions of superphosphate as a source of phosphate for farm animals is described. It consists of the preparation of a concentrated solution, sedimentation of the insoluble ...
  • Anonymous; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
  • Reinach, Norman; Louw, J.G.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E. (Published by The Government Printer, Pretoria, 1952)
    An experiment has been carried out in which the relative availability to young rats of the phosphorus in bone meal, bone ash, dicalcium phosphate and tricalcium phosphate has been ascertained. Live weight gains, the ash ...