Inefficiency of moxidectin and doramectin against ivermectin-resistant Cooperia spp. of cattle in New Zealand

Title Inefficiency of moxidectin and doramectin against ivermectin-resistant Cooperia spp. of cattle in New Zealand
Publication Type Journal Article
Year of Publication 1996
Authors Vermunt, J.J. , West D.M. , and Pomroy W.E.
Journal New Zealand Veterinary Journal
Volume 44
Issue 5
Pagination 188 - 193
Date Published 1996
ISBN Number 00480169 (ISSN)
Keywords parasitology
Abstract

Two cases are described in which strains of Cooperia spp. of cattle were found to be resistant to either the oral or the injectable formulations of ivermectin. Injectable moxidectin was not effective against the latter strain and doramectin was not effective against either of the ivermectin-resistant Cooperia isolates. In both cases, the anthelmintic efficacy of oral levamisole was 100%.

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