- UPSpace Home
- →
- South African National Veterinary Repository
- →
- Browsing South African National Veterinary Repository by UP Author
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing South African National Veterinary Repository by UP Author "Groeneveld, Hendrik T."
Now showing items 1-6 of 6
-
Groeneveld, Hendrik T.; Van Wyk, Jan Aucamp; Carmichael, I.H.; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1990)Parafilariosis was first described in South Africa in 1964, thereafter being discovered at numerous localities in the country. When it became obvious that Parafilaria bovicola, for which no treatment was known, caused ...
-
Groeneveld, Hendrik T.; Krecek, R.C.; Hartman, R.; Thorne, A.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1995)The influence of microclimate on numbers of third-stage larvae of Haemonchus contortus and Haemonchus placei in four strata of irrigated Kikuyu pasture was assessed. On 36 different, interspersed days three replicates of ...
-
Groeneveld, Hendrik T.; Reinecke, R.K.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Worm egg counts were compared with nematode worm burdens from data collected from >400 sheep killed in experiments on the epidemiology of nematode parasites in the Overberg, in the winter rainfall area of the southern Cape ...
-
Groeneveld, Hendrik T.; Reinecke, R.K.; Weiss, K.E. (Published by the Government Printer, Pretoria, 1969)In groups of experimentally infested sheep, worm distributions are markedly skew. In controlled anthelmintic tests, the worm burdens of treated and control sheep have different distributions and this invalidates the use ...
-
Groeneveld, Hendrik T.; Van Wyk, Jan Aucamp; De Kock, V.E.; De Lange, M; Bigalke, R.D.; Cameron, Colin McKenzie; Walker, Jane B.; Verster, Anna J.M. (Published by the Government Printer, Pretoria, 1973)Various sampling methods for Schistosoma mattheei cercariae, including sampling from different concentrations, were tested. The most satisfactory method consisted of mixing the cercarial suspension by pouring it to and fro ...
-
Groeneveld, Hendrik T.; Van Wyk, Jan Aucamp; Gerber, H.M.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)A gelled-agar technique for worm recovery was adapted to facilitate the recovery of larval and adult nematodes from the total ingesta of large numbers of sheep. The technique was also used to recover nematodes from 4 calves. ...
Now showing items 1-6 of 6