Browsing 1933 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 1, 1933 by Author "Du Toit, P.J."

Browsing 1933 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 1, 1933 by Author "Du Toit, P.J."

Sort by: Order: Results:

  • The immunization of horses against horsesickness by the use of formalised virus. Part II 
    Du Toit, P.J.; Alexander, R.A.; Neitz, W.O.; Union of South Africa. Dept. of Agriculture; Du Toit, P.J. (Pretoria : Union of South Africa, Dept. of Agriculture, 1933)
    (1) The antigenic value of individual spleens varies greatly. (2) The product of several pooled spleens is more potent than that obtained from a single spleen. (3) The potency of different batches of pooled spleens ...
  • The immunization of mules with formalised horsesickness virus. Part II 
    Du Toit, P.J.; Alexander, R.A.; Neitz, W.O.; Union of South Africa. Dept. of Agriculture; Du Toit, P.J. (Union of South Africa : Dept. of Agriculture, 1933)
    In a previous communication [this Bull. 3. 538.] it was shown that mules could be protected against horsesickness by a suitable formalinized vaccine. Further work has confirmed these results and indicated that a spleen ...
  • Studies in mineral metabolism XXVII. The effect of two different calcium phosphorus ratios upon the growth of calves 
    Du Toit, P.J.; Malan, A.I.; Groenewald, J.W.; Union of South Africa. Dept. of Agriculture; Du Toit, P.J. (Union of South Africa : Dept. of Agriculture, 1933)
    Two groups of calves were used. In one the CaO: P₂O₅ ratio of the diet as a whole was kept constant at 1: 14 (the ratio obtaining in milk) while in the other the ratio was kept at 1: 0.3 by the feeding of additional CaCO₃. ...