Oxfendazole efficacy in calves: A comparison of oral and intraruminal routes of administration

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Abstract
Twenty‐seven calves of the Dutch Friesian breed were housed after their first grazing season and divided into 3 groups, each of 9 animals. Two of the groups were treated with oxfendazole 9.06 per cent suspension administered either orally or intraruminally, whilst the third group was retained as an untreated control. No differences in efficacy were observed between the two treated groups and oxfendazole administered by either route was 100 per cent effective in removing adult populations of the major strongylids and trichostrongylids present.