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 ...
Kaschula, V.R.; Stephan, S.A.R.; Du Toit, P.J.(Pretoria : The Government Printer, 1947)
The occurrence of seventeen mites has been recorded apparently for
the first time in South Africa. Cheyletiella parasitivorax has also been
included, having been recorded only from Onderstepoort. These mites are
apparently ...
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 ...
