Multigeneric resistance to benzimidazole anthelmintics in four sheep flocks
- 1 June 1989
- journal article
- research article
- Published by Taylor & Francis in New Zealand Veterinary Journal
- Vol. 37 (2), 76-78
- https://doi.org/10.1080/00480169.1989.35565
Abstract
Clinical parasitism associated with multigeneric resistance to benzimidazole anthelmintics was investigated in four sheep flocks during February and March 1989. The genera considered resistant were Haemonchus and Nematodirus spp. on all four farms and Trichostrongylus and Ostertagia spp. on three of the four farms. It is suggested that when investigating cases of suspected drench resistance, postdrenching worm counts are useful to help identify the resistant worm species present.Keywords
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