Perfil de FSH e LH na divergência folicular em novilhas Nelore (Bos indicus)

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dc.contributor.authorGimenes, Lindsay Unno
dc.contributor.authorSá Filho, Manoel Francisco
dc.contributor.authorTorres-Júnior, José Ribamar
dc.contributor.authorBeltran, Maria Paula [UNESP]
dc.contributor.authorNogueira, Guilherme de Paula [UNESP]
dc.contributor.authorBaruselli, Pietro Sampaio
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:23:48Z
dc.date.available2014-05-27T11:23:48Z
dc.date.issued2008-12-01
dc.description.abstractPresent study aimed to evaluate gonadotropins profiles in 12 Nelore heifers, in order to test the hypothesis that FSH concentrations decrease and LH presents a transient increase during follicle selection. Blood samples from jugular vein were harvested twice daily starting at the time of ovulation (D0) until D5. Plasma samples were assayed for FSH and LH by double antibody radioimmunoassay method. LH and FSH assay sensitivity was 0,02ng/ml and 0,005ng/ml, respectively. The intraassay coefficient of variation was 13,6% and 18,8%, respectively. Data (mean±SEM) were normalized to follicle deviation and analyzed by ANOVA and by linear, cubic, and quadratic regressions. Comparisons between higher and lower FSH values were also performed by T-test. There was no effect of time in plasmatic FSH and LH circulating levels when variance analysis or regression analysis were performed. However, by T-test, FSH concentrationsreached the lowest plasmatic levels 36 (0,40±0,05ng/ml) and 60 hours (0,42±0,04ng/ml) after follicular deviation, comparatively to 36 hours before deviation, when the concentrations were maximal (0,63±0,08ng/ml). In conclusion, there is a FSH decrease, although a transient LH elevation has not been confirmed encompassing follicle deviation in Nelore females.en
dc.description.affiliationDepartamento de Reprodução Animal Faculdade de Medicina Veterinária e Zootecnia Universidade de São Paulo, São Paulo-SP
dc.description.affiliationDepartamento de Apoio e Produção em Saúde Animal Laboratório de Endocrinologia Universidade Estadual Paulista, Araçatuba-SP
dc.description.affiliationUnespDepartamento de Apoio e Produção em Saúde Animal Laboratório de Endocrinologia Universidade Estadual Paulista, Araçatuba-SP
dc.format.extent11-16
dc.identifierhttp://www.revistas.usp.br/bjvras/article/view/26714
dc.identifier.citationBrazilian Journal of Veterinary Research and Animal Science, v. 45, n. 1, p. 11-16, 2008.
dc.identifier.file2-s2.0-78149363570.pdf
dc.identifier.issn1413-9596
dc.identifier.issn1678-4456
dc.identifier.lattes6926188473133379
dc.identifier.lattes9472065929531215
dc.identifier.scopus2-s2.0-78149363570
dc.identifier.urihttp://hdl.handle.net/11449/70817
dc.language.isopor
dc.relation.ispartofBrazilian Journal of Veterinary Research and Animal Science
dc.relation.ispartofsjr0,225
dc.relation.ispartofsjr0,225
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectCattle
dc.subjectGonadotropins
dc.subjectNelore
dc.subjectPituitary
dc.subjectRadioimmunoassay
dc.subjectBos
dc.subjectBos indicus
dc.titlePerfil de FSH e LH na divergência folicular em novilhas Nelore (Bos indicus)pt
dc.title.alternativeFSH and LH profiles during follicle deviation in Nelore heifers (Bos indicus)en
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/bjvras/paboutj.htm
unesp.author.lattes6926188473133379
unesp.author.lattes9472065929531215
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária, Araçatubapt

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