Anthelmintic resistance in Creole horses in the South of Rio Grande do Sul, Brazil
ABSTRACT The objective of the study was to evaluate the antiparasitic resistance against horse nematodes in the South of Rio Grande do Sul, Brazil. The results concerning the tests of anthelmintic efficacy on horses, stored in the database of the Parasitic Diseases Study Group (GEEP) - Veterinary Faculty, at the Federal University of Pelotas (UFPel), were carried out in the laboratory from 2018 to 2019. Stool samples were received from farms with breeding of adult female and male Criollo horses naturally infected, located in municipalities in the country’s southern region. The antiparasitic agents tested were Triclorfon + Fenbendazole, Closantel + Albendazole, Ivermectin + Praziquantel, Fenbendazole, Ivermectin, Doramectin, Mebendazole and Moxidectin. Techniques such as Gordon and Whitlock, Coproculture and Fecal Egg Count Reduction Test were performed. Of all the antiparasitic drugs tested, it was observed that only treatments with Ivermectin 2% showed desired values. The observed results indicate that resistance to macrocyclic lactones is usual in equine parasites in this Brazilian region, despite the results with isolated Ivermectin.
Main Authors: | Lignon,J.S., Gonçalves,N.F., Cunha,L.L., Antunes,T.A., Leão,M.S., Camassola,J.L.T., Pellegrin,T.G., Ripoll,P.K., Pappen,F.G., Pinto,D.M. |
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Format: | Digital revista |
Language: | English |
Published: |
Universidade Federal de Minas Gerais, Escola de Veterinária
2021
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352021000300598 |
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