Analysis of the risk factors related to the immune humoral anti-Anaplasma marginale in dairy cattle

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dc.contributor.authorDa Silva, Jenevaldo Barbosa [UNESP]
dc.contributor.authorDa Fonseca, Adivaldo Henrique
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal Rural do Rio de Janeiro (UFRRJ)
dc.date.accessioned2014-05-27T11:28:37Z
dc.date.available2014-05-27T11:28:37Z
dc.date.issued2013-03-01
dc.description.abstractAnaplasma marginale is the most prevalent pathogen of cattle transmitted by ticks in the world. This study aimed to evaluate the risk factors for anaplasmosis in dairy cattle. Fifty dairy cattle from the herd of Empresa de Pesquisa Agropecuaria do Estado do Rio de Janeiro were selected by proportional stratified sampling. The risk factors evaluated were: physiological state, race pattern, number of lactations, milk production, infestation by Rhipicephalus microplus and animal density. Antibody activity against A. marginale was determined using the indirect enzyme-linked immunosorbent assay. The percentual values of seroprevalence for A. marginale were submitted to X2 test, and the level of minimum significance, to keep a factor in the model of logistic regression, was fixated in 5%. It was observed that pregnancy and lactation influenced significantly (p<0.05) in the seropositivity of the animals. Bos indicus animals had 5.21 times more chances of being seropositive than B. taurus animals. Primiparous female had 88% more chances of being seropositive than pluriparous female. Animals with high milk production were 63% more positive than low production animals. When infested by ticks the animals had 39% more chance of being seropositive to A. marginale. Bos indicus animals presented 5.21 times more chance of being seropositive than B. taurus animals. Primiparous females presented 88% more chance of being seropositive than the pluriparous ones. High milk production animals were 63% more positive than the low production ones. When infested by ticks the animals had 39% more chance of being seropositive to A. marginale. High density grazing provided for the animals 3.2 times more chances of being seropositive than low density ones. The herd was classified as erratic to A. marginale, even being placed in a steady enzootic area.en
dc.description.affiliationFaculdade de Ciências Agrárias e Veterinária FCAV/UNESP, Jaboticabal, SP
dc.description.affiliationUniversidade Federal Rural do Rio de Janeiro, UFRRJ, Seropédica, RJ
dc.description.affiliationUnespFaculdade de Ciências Agrárias e Veterinária FCAV/UNESP, Jaboticabal, SP
dc.format.extent777-784
dc.identifierhttp://dx.doi.org/10.5433/1679-0359.2013v34n2p777
dc.identifier.citationSemina:Ciencias Agrarias, v. 34, n. 2, p. 777-784, 2013.
dc.identifier.doi10.5433/1679-0359.2013v34n2p777
dc.identifier.file2-s2.0-84878332630.pdf
dc.identifier.issn1676-546X
dc.identifier.issn1679-0359
dc.identifier.scopus2-s2.0-84878332630
dc.identifier.urihttp://hdl.handle.net/11449/74772
dc.identifier.wosWOS:000328266700029
dc.language.isoeng
dc.relation.ispartofSemina: Ciências Agrárias
dc.relation.ispartofjcr0.349
dc.relation.ispartofsjr0,320
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAnaplasma marginale
dc.subjectImmunodiagnostic
dc.subjectPostpartum
dc.subjectPrevalence
dc.titleAnalysis of the risk factors related to the immune humoral anti-Anaplasma marginale in dairy cattleen
dc.typeArtigo
dcterms.licensehttp://www.uel.br/revistas/uel/index.php/semagrarias/about/editorialPolicies#openAccessPolicy

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