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Title: An outbreak of haemonchosis associated with anthelmintic resistance in sheep. Author: Yadav CL, Uppal RP, Kalra S. Journal: Int J Parasitol; 1993 May; 23(3):411-3. PubMed ID: 8359992. Abstract: An outbreak of haemonchosis associated with anthelmintic resistance was recorded in a flock of 150 crossbred lambs. Closantel and ivermectin were 100% effective against Haemonchus contortus while fenbendazole and morantel reduced faecal egg counts by 87 and 29%, respectively. Levamisole showed an efficacy of 95%. At double the recommended dose (10 mg kg-1), fenbendazole had an efficacy of 99% against H. contortus infection. This appears to be the first report of an outbreak of haemonchosis associated with fenbendazole and morantel resistance in a strain of H. contortus in sheep.[Abstract] [Full Text] [Related] [New Search]