Avaliação na redução de ovos de nematódeos gastrintestinais em bovinos após a administração de anti-helmínticos

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Data

2010-11-17

Autores

de Soutello, Ricardo Velludo Gomes
Coelho, Wilian Marinho Dourado
de Oliveira, Fernando Paes
Fonzar, José Francisco
Luquetti, Brenda Carla
de Souza, Renata Furlan Pereira
Seno, Maria Conceição Zocoller [UNESP]
do Amarante, Alessandro Francisco Talamini [UNESP]

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Resumo

To evaluate the necessary time and to identify the differences among anthelmintics for the reduction of parasite eggs shed in feces, five groups of cattle were treated with moxidectin, ivermectin, levamisole phosphate, and albendazole sulphoxide. Levamisole promoted a reduction in egg count per gram (EPG-R) of 97.4% after 24 hours, moxidectin 98.3% after 36 hours, and albendazole sulphoxide 95.9% after 36 hours post- treatment. Cooperia spp. and Haemonchus spp. showed resistance to ivermectin. The results demonstrated that the diagnosis of parasite resistance in cattle can be based on a count of eggs per gram (EPG) carried out as soon as seven days after the treatment.

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Anthelmintic, Cattle, Cooperia, Haemonchus, Resistance

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Revista Brasileira de Parasitologia Veterinaria, v. 19, n. 3, p. 183-185, 2010.