Browsing 1990 Onderstepoort Journal of Veterinary Research, Volume 57, 1990 by Author "Neitz, Albert Walter Herman"

Browsing 1990 Onderstepoort Journal of Veterinary Research, Volume 57, 1990 by Author "Neitz, Albert Walter Herman"

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  • The detection and isolation of a paralysis toxin present in Argas (Persicargas) walkerae 
    Neitz, Albert Walter Herman; Viljoen, G.J.; Van Wyngaardt, S.; Gothe, R.; Visser, L.; Bezuidenhout, J. Dürr; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1990)
    One-day-old leghorn chickens were used in a laboratory assay to determine the toxicity of crude extracts of the tick Argas (Persicargas) walkerae and of fractions obtained during the isolation procedure. Extracts of unfed ...
  • Identification of the antigenic proteins of Cowdria ruminantium 
    Neitz, Albert Walter Herman; Rossouw, Mirinda; De Waal, D.T.; Du Plessis, J.L.; Van Gas, Letitia; Brett, Susan; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1990)
    Immunoblotting of Cowdria ruminantium proteins with sheep or bovine antiserum identified 2 antigenically conserved proteins, one being an immunodominant 31 kDa and the other a minor 27 kDa protein. These proteins are present ...