1981•Veterinary RecordRequires access
Further observations on the action of fenbendazole against inhibited fourth stage larvae of Ostertagia ostertagi
M. Lancaster, C. Hong, J. Michel
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Abstract
Two further trials are reported on the effect of fenbendazole on inhibited Ostertagia ostertagi larvae. In the first trial fenbendazole successfully eliminated inhibited burdens of O ostertagi, while in the second trial the effect was variable. As a result of these trials and previous reports it is concluded that a single oral dose of fenbendazole cannot be relied upon to prevent winter (type 2) ostertagiasis.