Gastrointestinal parasites occurrence in dairy cows kept in organic and conventional production system

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dc.contributor.authorda Silva, Jenevaldo Barbosa [UNESP]
dc.contributor.authorGuimaraes Soares, Joao Paulo
dc.contributor.authorda Fonseca, Adivaldo Henrique
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Federal Rural do Rio de Janeiro (UFRRJ)
dc.date.accessioned2014-05-20T15:34:53Z
dc.date.available2014-05-20T15:34:53Z
dc.date.issued2012-01-01
dc.description.abstractThe main aim of this study was to determine the effects of pregnancy, calving, lactation, lactation number and seasons on the population of gastrointestinal helminths in dairy cows kept in organic and conventional production system. Between January 2007 and December 2009, coproparasitologic exams were performed using 72 and 43cows kept in conventional and organic system, respectively. The data was submitted to analysis of variance and Student and Tukey test, both at 5% of significance level. There was no difference (p > 0.05) between faecal egg count (FEC) of organic and conventional animals. The mean FEC during calving and lactation was higher (p < 0.05) than during pregnancy. There was no effect of season on the FEC in dairy cows kept in conventional system, while the dairy cows kept in organic system were significantly (p <0 .05) more infected during the rainy season. In both production systems the primiparous animals showed FEC significantly higher (p < 0.05) than pluriparous animals. Dairy cows kept in organic and conventional system were equally vulnerable to the subclinical helminthiasis, and the birth order was a risk factor in both systems.en
dc.description.affiliationFCAV UNESP, Fac Ciencias Agr & Vet, Jaboticabal, SP, Brazil
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Empresa Brasileira Pesquisa Agr, Brasilia, DF, Brazil
dc.description.affiliationUniv Fed Rural Rio de Janeiro, UFRRJ, Seropedica, RJ, Brazil
dc.description.affiliationUnespFCAV UNESP, Fac Ciencias Agr & Vet, Jaboticabal, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent2375-2382
dc.identifierhttp://dx.doi.org/10.5433/1679-0359.2012v33n6p2375
dc.identifier.citationSemina-ciencias Agrarias. Londrina: Universidade Estadual de Londrina (UEL), v. 33, n. 6, p. 2375-2382, 2012.
dc.identifier.doi10.5433/1679-0359.2012v33n6p2375
dc.identifier.fileWOS000314514200034.pdf
dc.identifier.issn1676-546X
dc.identifier.urihttp://hdl.handle.net/11449/42682
dc.identifier.wosWOS:000314514200034
dc.language.isoeng
dc.publisherUniversidade Estadual de Londrina (UEL)
dc.relation.ispartofSemina: Ciências Agrárias
dc.relation.ispartofjcr0.349
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectHelminthsen
dc.subjectsustainable productionen
dc.subjectimmune decreaseen
dc.titleGastrointestinal parasites occurrence in dairy cows kept in organic and conventional production systemen
dc.typeArtigo
dcterms.licensehttp://www.uel.br/revistas/uel/index.php/semagrarias/about/editorialPolicies#openAccessPolicy
dcterms.rightsHolderUniversidade Estadual de Londrina (UEL)

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