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EFFICACY OF OXFENDAZOLE AGAINST INHIBITED OSTERTAGIA OSTERTAGI IN NATURALLY INFECTED CATTLE
Author(s) -
KISTNER T. P.,
WYSE D.,
AVERKIN E.
Publication year - 1979
Publication title -
australian veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.382
H-Index - 59
eISSN - 1751-0813
pISSN - 0005-0423
DOI - 10.1111/avj.1979.55.5.232
Subject(s) - oxfendazole , ostertagia ostertagi , anthelmintic , zoology , body weight , placebo , biology , veterinary medicine , larva , medicine , endocrinology , ecology , fenbendazole , alternative medicine , pathology
SUMMARY Oxfendazole was administered to pregnant cows at 2.5 and 5 mg/kg body weight to determine the anthelmintic efficacy against naturally acquired larvae which became inhibited at the early 4th stage. The experimental design included three groups of orally‐treated cows, that is, 10 placebo treated control cows, 11 cows treated with 2.5 mg/kg of oxfendazole and 10 cows treated with 5.0 mg/kg of oxfendazole. Oxfendazole at 2.5 mg/kg body weight was 82 and 94% effective against EL‐4 and adult O. ostertagi , respectively. At 5 mg/kg, Oxfendazole was 95 and 99% effective against EL‐4 and adult O. ostertagi , respectively. The results suggested the use of a field dosage level of 5 mg/kg body weight oxfendazole where inhibited larvae may be encountered.