Estrus synchronization and fixed time artificial insemination (FTAI) in dairy buffaloes during seasonal anestrus

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dc.contributor.authorFrares, Luciana Ferri
dc.contributor.authorWeiss, Romildo Romualdo
dc.contributor.authorKozicki, Luiz Ernandes
dc.contributor.authorSantangelo, Renata Prestes
dc.contributor.authorde Abreu, Renata Azevedo
dc.contributor.authordo Santos, Ivo Walter
dc.contributor.authorDell'aqua Junior, José Antônio [UNESP]
dc.contributor.authorBreda, José Carlos
dc.contributor.institutionUniversidade Federal do Paraná (UFPR)
dc.contributor.institutionPontifícia Universidade Católica do Paraná (PUCPR)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:30:51Z
dc.date.available2014-05-27T11:30:51Z
dc.date.issued2013-10-16
dc.description.abstractThe aim of this work was to study estrus synchronization and fixed time artificial insemination (FTAI) in dairy buffaloes during season anestrus. One hundred thirty-nine dairy buffaloes in seasonal anestrus were divided in two groups as G1(n=66) and G2(n=73). The protocols for both the groups were the same until day (D)14:D0 administration of 2.0 mg estradiol benzoate and implantation of progesterone device (P4) for 14 days; D14 removal of P4 plus 150 mg of cloprostenol and 400 IU of equine chorionic gonadotropin. On D16, G1 received 10 mg of buserelin and G2 100 mg deslorelin acetate. On D17, both the groups were submitted to FTAI. Ultrasonographic examinations of ovaries were performed on D0, D14, D16 and D17. Results showed that pregnancy rates in G1 and G2 were 20 and 41% (p<0.05) and the ovulation rates were 16.6 and 37%, respectively (p<0.05). The dominant follicle (DF) diameter on D16 was 7.9 mm in G1 and 8.9 mm in G2 (p>0.05). Thirty-five percent of the animals in G1 and 54.1% in G2 showed a diameter DF greater than 8.0 mm on D16 (p>0.05). Thus, it could be concluded that the protocols synchronized the estrus, leading the concentration of the parturitions in the period of low milk production. Deslorelin was more efficient than buserelin due the higher percentage of DF ovulation and higher pregnancy rates.en
dc.description.affiliationPrograma de Pós Graduação em Ciências Veterinárias Universidade Federal do Paraná, Curitiba - PR
dc.description.affiliationPrograma de Pós Graduação em Processos Biotecnológicos Universidade Federal do Paraná, Curitiba - PR
dc.description.affiliationEscola de Ciências Agrárias e Medicina Veterinaria Pontificia Universidade Católica do Paraná, Curitiba - PR
dc.description.affiliationMedicina Veterinaria Universidade Federal do Paraná Campus de Palotina, Palotina - PR
dc.description.affiliationDepartamento de Reprodução Animal Universidade Estadual Paulista Campus de Botucatu, São Paulo - SP
dc.description.affiliationUnespDepartamento de Reprodução Animal Universidade Estadual Paulista Campus de Botucatu, São Paulo - SP
dc.format.extent575-580
dc.identifierhttp://dx.doi.org/10.1590/S1516-89132013000400007
dc.identifier.citationBrazilian Archives of Biology and Technology, v. 56, n. 4, p. 575-580, 2013.
dc.identifier.doi10.1590/S1516-89132013000400007
dc.identifier.file2-s2.0-84885358386.pdf
dc.identifier.issn1516-8913
dc.identifier.issn1678-4324
dc.identifier.scieloS1516-89132013000400007
dc.identifier.scopus2-s2.0-84885358386
dc.identifier.urihttp://hdl.handle.net/11449/76866
dc.identifier.wosWOS:000327228200007
dc.language.isoeng
dc.relation.ispartofBrazilian Archives of Biology and Technology
dc.relation.ispartofjcr0.676
dc.relation.ispartofsjr0,281
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBuserelin
dc.subjectDairy buffaloes
dc.subjectDeslorelin
dc.subjectEstrus synchronization
dc.subjectFTAI
dc.subjectSeasonal anestrus
dc.titleEstrus synchronization and fixed time artificial insemination (FTAI) in dairy buffaloes during seasonal anestrusen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/babt/paboutj.htm
unesp.author.orcid0000-0002-3700-1811[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária e Zootecnia, Botucatupt

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