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dc.contributor.authorZanetti Lopes, Welber Daniel-
dc.contributor.authorFelippelli, Gustavo-
dc.contributor.authorPires Teixeira, Weslen Fabricio-
dc.contributor.authorCruz, Breno Cayeiro-
dc.contributor.authorMaciel, Willian Giquelin-
dc.contributor.authorBuzzulini, Carolina-
dc.contributor.authorShigaki de Matos, Lucas Vinicius-
dc.contributor.authorCosta Gomes, Lucas Vinicius-
dc.contributor.authorMelo Pereira, Joao Carlos-
dc.contributor.authorFavero, Flavia Carolina-
dc.contributor.authorOliveira, Gilson Pereira de-
dc.contributor.authorCosta, Alvimar Jose da-
dc.date.accessioned2014-12-03T13:11:45Z-
dc.date.accessioned2016-10-25T20:15:02Z-
dc.date.available2014-12-03T13:11:45Z-
dc.date.available2016-10-25T20:15:02Z-
dc.date.issued2014-05-01-
dc.identifierhttp://dx.doi.org/10.1590/S0103-84782014000500014-
dc.identifier.citationCiencia Rural. Santa Maria: Univ Federal Santa Maria, v. 44, n. 5, p. 847-853, 2014.-
dc.identifier.issn0103-8478-
dc.identifier.urihttp://hdl.handle.net/11449/113501-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/113501-
dc.description.abstractThe broad spectrum of endectocides and the easy use mode of their pour-on formulations are factors that have stimulated a higher frequency of use these drugs in cattle. In this study was evaluated the efficacy of ivermectin pour-on using the dose of 500mcgkg(-1), against nematodes in naturally infected cattle from different herds. Twelve calves were brought from each of the four farms selected. All the 48 calves used showed mean of eggs per gram of feces (EPG) greater than 500 considering three consecutive counts. Subsequently, animals from each herd were divided into two groups of six animals each, one treated pour-on with ivermectin 500mcgkg(-1) and other kept as untreated control. Calves were euthanized 14 days after treatment for counting the endoparasites. Ivermectin showed null effect against H. placei in all the herds evaluated. The drug was also ineffective against C. punctata in the herds from Jaboticabal, SP and Formiga, MG, and reached efficacy of 75.8% and 58.4% in herds from Sao Jose do Rio Pardo, SP and Sao Sebastiao do Para so, MG, respectively. Efficacies of 94.2% (Jaboticabal), 0.0% (Sao Jose do Rio Pardo), 94.2% (Formiga) and 39.2% (Sao Sebastiao do Para so) were detectedagainstO. radiatum. Based on these results obtained on the present study, the four populations of Haemonchus placei and Cooperia punctata evaluated were resistant to ivermectin pour-on using a dose of 500mcgkg(-1). Ivermectin-resistant strains of Oesophagostomum radiatum were found in two of the four herds evaluated.en
dc.format.extent847-853-
dc.language.isopor-
dc.publisherUniv Federal Santa Maria-
dc.sourceWeb of Science-
dc.subjectgastrointestinal nematodesen
dc.subjectmacrocyclic lactonesen
dc.subjectmultiple resistanceen
dc.subjectruminantsen
dc.subjecttopicallyen
dc.titleResistência de Haemonchus placei, Cooperia punctata e Oesophagostomum radiatum à ivermectina pour-on a 500mcgkg-1 em rebanhos bovinos no Brasilpt
dc.title.alternativeHaemonchus placei, Cooperia punctata and Oesophagostomum radiatum resistant to ivermectin pour-on 500mcgkg(-1) in cattle from Brazilen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv Estadual Paulista Julio de Mesquita Filho UN, Fac Ciencias Agr & Vet, Ctr Pesquisas Sanidade Anim CPPAR, BR-14884900 Jaboticabal, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista Julio de Mesquita Filho UN, Fac Ciencias Agr & Vet, Ctr Pesquisas Sanidade Anim CPPAR, BR-14884900 Jaboticabal, SP, Brazil-
dc.identifier.wosWOS:000335217000014-
dc.rights.accessRightsAcesso aberto-
dc.identifier.fileS0103-84782014000500014.pdf-
dc.relation.ispartofCiência Rural-
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