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Publicação:
Daily sperm production and evaluation of morphological reproductive parameters of Murrah buffaloes in an extensive breeding system

dc.contributor.authorLuz, Patricia A. C. da [UNESP]
dc.contributor.authorAndrighetto, Cristiana [UNESP]
dc.contributor.authorSantos, Paulo R. S.
dc.contributor.authorJorge, André Mendes [UNESP]
dc.contributor.authorConstantino, Maria Vitoria P.
dc.contributor.authorPereira, Flávia T. V. [UNESP]
dc.contributor.authorMess, Andrea M.
dc.contributor.authorAssis Neto, Antônio Chaves de
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2016-07-07T12:36:58Z
dc.date.available2016-07-07T12:36:58Z
dc.date.issued2012
dc.description.abstractThe development of male sexual maturity varies among buffaloes. The Murrah buffalo is considered the most important and efficient milk and fat producer, but aspects of its reproductive biology are still unknown. The present study aimed to evaluate the daily sperm production (DSP) and spermatogenesis in developing Murrah buffalo bulls by evaluation of the seminiferous tubules, testicular morphometry and using light microscopy and scanning electron microscopy. The testes of Murrah buffalo bulls at 18 mo was immature and at 24 mo could still be considered an average-efficiency breed based on their DSP. At 24 mo, the DSP rate was 0.97 billion sperm per testis and 13 million sperm per gram of testis. However, the animals had superior morphometric parameters compared with those of other livestock animals, except for the seminiferous tubule volume and diameter, which were inferior. In conclusion, our data support former views that the testes of the Murrah breed does not reach sexual maturity before 2 y of age and that important developmental steps occur later than Murrah crossbreeds from Brazil.en
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia de Botucatu, Botucatu, Depto. Produção Animal, Lageado, CEP 18618-000, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia de Botucatu, Botucatu, Depto. Produção Animal, Lageado, CEP 18618-000, SP, Brasil
dc.description.sponsorshipFundação de Amparo a Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2010/10912–9
dc.format.extent88-93
dc.identifierhttp://dx.doi.org/10.4161/spmg.20220
dc.identifier.citationSpermatogenesis, v. 2, n. 2, p. 88-93, 2012.
dc.identifier.doi10.4161/spmg.20220
dc.identifier.issn2156-5554
dc.identifier.lattes8878595413452908
dc.identifier.lattes0601987075176706
dc.identifier.orcid0000-0001-6543-9696
dc.identifier.urihttp://hdl.handle.net/11449/141125
dc.language.isoeng
dc.relation.ispartofSpermatogenesis
dc.relation.ispartofsjr0,128
dc.rights.accessRightsAcesso restrito
dc.sourceCurrículo Lattes
dc.subjectBuffaloesen
dc.subjectHistometryen
dc.subjectSexual developmenten
dc.subjectSperm productionen
dc.subjectTestesen
dc.titleDaily sperm production and evaluation of morphological reproductive parameters of Murrah buffaloes in an extensive breeding systemen
dc.typeArtigo
dspace.entity.typePublication
unesp.author.lattes8878595413452908[4]
unesp.author.lattes0601987075176706[2]
unesp.author.orcid0000-0002-9079-198X[4]
unesp.author.orcid0000-0001-6543-9696[2]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Medicina Veterinária e Zootecnia, Botucatupt
unesp.departmentProdução Animal - FMVZpt

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