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dc.contributor.authorFacioli, Fernanda Luizapt_BR
dc.contributor.authorBezutti, Gabriela da Fonsecapt_BR
dc.contributor.authorBender, Rodrigo S.pt_BR
dc.contributor.authorMarques, Mariana Grokept_BR
dc.contributor.authorBondan, Carlospt_BR
dc.contributor.authorZanella, Eraldopt_BR
dc.contributor.authorBertolini, Marcelopt_BR
dc.contributor.authorZanella, Ricardopt_BR
dc.date.accessioned2021-06-18T04:31:45Zpt_BR
dc.date.issued2020pt_BR
dc.identifier.issn1806-9614pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/222402pt_BR
dc.description.abstractTwin birth is a complex condition observed in most livestock animals, when the female gives birth to two or more offspring, generally out of the same mating. In cattle, it is a rare condition (3 to 5%) and depends on the genetic background and environmental factors. Twin birth is a result of multiple ovulations, being more common in dairy rather than in beef cattle. Calves could be monozygous or dizygous, with the same or of different sexes. When twins are born with different sexes, a sexual condition called Freemartinism occurs in between 90 to 97% of pregnancies, causing infertility in the female calf. Knowing that the twin rate is rare in commercial beef cattle, here we present an even rarer case of twin birth from two different sires after natural mating, also called heteropaternal superfecundation.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofAnimal reproduction. Belo Horizonte. Vol. 17, n. 4 (2020), e20200217, 5 p.pt_BR
dc.rightsOpen Accessen
dc.subjectTwin birthen
dc.subjectGêmeos dizigóticospt_BR
dc.subjectBovinos de cortept_BR
dc.subjectBeef cattleen
dc.subjectFreemartinismopt_BR
dc.subjectHeteropaternal superfecundationen
dc.titleA rare case of heteropaternal twin calves after natural mating in Brazilpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001126813pt_BR
dc.type.originNacionalpt_BR


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