Efficacy of ivermectin against the abomasal nematode mecistocirrus digitatus in naturally infected zebu calves.
Anthelmintic efficacy of ivermectin against Mecistocirrus digitatus was evaluated in 10 naturally infected zebu calves. Group 1 (n = 5) was not treated, and group 2 (n = 5) was treated SC with 200 micrograms of ivermectin/kg of body weight. Calves were euthanatized 14 or 15 days after treatment. There was 100% overall reduction of M digitatus in treated calves, which was significant (P = 0.0079) compared with reduction in controls. Cooperia punctata, Haemonchus similis, and Trichostrongylus axei were found in controls. Efficacy against these parasites in treated calves was 100%.
Mendoza-de Gives
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P
Departamento de Parasitología, Instituto Nacional de Investigaciones Forestales y, México, DF 05110.
Nájera Fuentes
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Herrera-Rodríguez
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D
Roncalli
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RA
D000018:Abomasum / Q000469:parasitology*; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy* / Q000469:parasitology; D007559:Ivermectin / Q000627:therapeutic use*; D009349:Nematode Infections / Q000188:drug therapy / Q000662:veterinary*
D007559:Ivermectin