Browsing 1996 Onderstepoort Journal of Veterinary Research, Volume 63, 1996 by Subject "Sheep"

Browsing 1996 Onderstepoort Journal of Veterinary Research, Volume 63, 1996 by Subject "Sheep"

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  • Distribution of viral antigen in tissues of new-born lambs infected with Rift Valley fever virus 
    Coetzer, Jacobus A.W.; Van der Lugt, Jaco J.; Smit, M.M.E.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1996)
    The distribution of Rift Valley fever (RVF) viral antigen was studied by immunohistochemistry in the liver, spleen, prescapular lymph node, lungs and kidneys of eight experimentally infected new-born lambs and in four ...
  • Heartwater in sheep and goats: a review 
    Yunker, Conrad E.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1996)
    Heartwater (cowdriosis) is an important, often fatal , tick-borne disease of domestic and wild ruminants in sub-Saharan Africa and some Indian Ocean and Caribbean islands. The causal agent, Cowdria ruminantium (Cowdry ...
  • Heterophile antibodies to chicken erythrocytes in sheep infected with Trypanosoma congolense 
    Joshua, R.A.; Neils, J.S.; Oladosu, L.A.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1996)
    High hemagglutinin titres against chicken erythrocytes were detected in the sera of Trypanosoma congolense-infected sheep. Adsorption of sheep sera with solubilized T. congolense resulted in marked reduction of hemagglutinin ...
  • Seasonal dynamics of the Karoo paralysis tick (Ixodes rubicundus): a comparative study on Merino and Dorper sheep 
    Fourie, L.J.; Kok, D.J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1996)
    Karoo paralysis in South Africa is induced in livestock by feeding female Ixodes rubicundus ticks when infestation densities on hosts exceed certain critical levels. It has been shown previously that Angora goats are at a ...