for the thiabendazole resistant strain of t colubriformis , fenbendazole reduced total worm counts in infected sheep by 4 , 44 ( 40-48 ) , 79 ( 75-83 ) , 96 and 100 per cent at dose rates of 5 , 10 , 20 , 40 and 80 mg/kg per os .
C0039832
thiabendazole
C0018889
worm