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1989 Onderstepoort Journal of Veterinary Research, Volume 56, 1989
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Browsing 1989 Onderstepoort Journal of Veterinary Research, Volume 56, 1989 by Author

Browsing 1989 Onderstepoort Journal of Veterinary Research, Volume 56, 1989 by Author "Van Schalkwyk, Louwrens"

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South African field strains of Haemonchus contortus resistant to the levamisole/morantel group of anthelmintics

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 ...

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