- UPSpace Home
- →
- South African National Veterinary Repository
- →
- Browsing South African National Veterinary Repository by Author
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing South African National Veterinary Repository by Author "Alves, Regina M.R."
Now showing items 1-8 of 8
-
Van Wyk, Jan Aucamp; Gerber, H.M.; Alves, Regina M.R.; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1990)Infective larvae of selected batched of the following nematode species from sheep and cattle were examined for survival and infectivity (by injection into either the abomasum, the duodenum, or the jugular vein) after having ...
-
Van Wyk, Jan Aucamp; Alves, Regina M.R.; Van Rensburg, L.J.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1988)The faeces of 11 horses were examined for Fasciola spp. eggs. One of them was positive for Fasciola hepatica, a finding which was confirmed post-mortem. The 10 negative horses were subsequently infested with either F. ...
-
Van Wyk, Jan Aucamp; Bath, Gareth F.; Gerber, H.M.; Alves, Regina M.R.; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1990)A strain of Trichostrongylus colubriformis from Nottingham Road, in Natal, was found to be solidly resistant to levamisole and morantel at the recommended dose levels. Untreated control sheep in fact harboured fewer worms ...
-
Van Wyk, Jan Aucamp; Gerber, H.M.; Alves, Regina M.R.; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1984)Cryopreservation of the infective larvae (L₃) of nematodes is being used increasingly for the routine maintenance of pure strains of nematodes in the laboratory. Gelatin capsules are frequently used to administer the L₃ ...
-
Van Wyk, Jan Aucamp; Malan, F.S.; Gerber, H.M.; Alves, Regina M.R.; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1989)During the past decade in South Africa there has been a continual increase in sheep of strains of gastrointestinal helminths resistant to the modern anthelmintics. Five strains of Haemonchus contortus are described in this ...
-
Van Wyk, Jan Aucamp; Gerber, H.M.; Alves, Regina M.R.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)On the strength of a complaint of suspected resistance to closantel, a field strain of Haemonchus contortus was isolated from sheep on a farm near Pretoria and tested for resistance to the remedy, both without exposure to ...
-
Van Wyk, Jan Aucamp; Van Schalkwyk, Louwrens; Van Schalkwyk, P.C.; Visser, Evelyn L.; Alves, Regina M.R.; Gerber, H.M.; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1989)A strain of Haemonchus contortus from the Pietermaritzburg district of Natal was found to be resistant to levamisole (geometric mean efficacy 76,5 %), morantel (41,9 %), the benzimidazoles (oxfendazole: 33,7 %) and rafoxanide ...
-
Van Wyk, Jan Aucamp; Malan, F.S.; Gerber, H.M.; Alves, Regina M.R.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)Two field strains of Haemonchus contortus, one from Pretoria on the Highveld and the other from White River in the Lowveld of the Transvaal, showed pronounced resistance to rafoxanide at a dosage rate of 7,5 mg/kg live ...
Now showing items 1-8 of 8