A survey of anthelmintic resistance on ten goat farms in the Manawatu region in 1988

Authors: Pomroy WE, Scherrer AM, Charleston WAG
Publication: New Zealand Veterinary Journal, Volume 37, Issue 4, pp 148-149, Dec 1989
Publisher: Taylor and Francis

Animal type: Goat, Livestock, Production animal, Ruminant
Subject Terms: Alimentary system/gastroenterology, Animal remedies/veterinary medicines, Anthelmintics, Parasite control, Parasites - internal, Biosecurity, Disease surveillance, Nematode, Treatment/therapy
Article class: Scientific Article

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Abstract: A survey of anthelmintic resistance on ten goat farms was carried out. The criterion for resistance was a faecal egg coynt reduction (FECR) of <90 percent based on arithmetic means of 11 to 19 goats per group. It was found that nine of the ten farms harboured nematodes resistant to oxfendazole when used at 5mg/kg although on two of these, the FECR`s were 89.2 percent and 89.8 percent. Post treatment larval cultures indicated Haemonchus, Ostertagia and Trichostrongylus were the resistant genera involved. On none of the ten farms was resistance to oral ivermectin at 0.2mg/kg detected.

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