Alternative low doses and routes of administering a prostaglandin F2 alpha analogue to induce luteolysis in Nelore cows

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dc.contributor.authorMeira, Cezinande de [UNESP]
dc.contributor.authorPessoa, Valsair Matos
dc.contributor.authorFerreira, João Carlos Pinheiro [UNESP]
dc.contributor.authorAraujo, Gustavo Henrique M.
dc.contributor.authorGioso, Marilu M.
dc.contributor.authorBicudo, Sony Dimas [UNESP]
dc.contributor.authorOba, Eunice [UNESP]
dc.contributor.authorOrlandi, Cassia
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-02-26T17:27:38Z
dc.date.accessioned2014-05-20T13:41:45Z
dc.date.available2014-02-26T17:27:38Z
dc.date.available2014-05-20T13:41:45Z
dc.date.issued2006-12-01
dc.description.abstractThe present study was conducted in order to verify the efficacy of lower doses and alternative routes of a prostaglandin F2 alpha analogue, luprostiol (PGF), for the induction of luteolysis and the precipitation of estrus in nonlactating Nelore cows (Bos taurus indicus). A conventional dose (15 mg) of PGF was compared to doses lower than the conventional dose, which ranges from 10 to 50%, that were administered intramuscularly (IM), intravulvosubmucosally (IVSM), or in the Bai-hui acupuncture site located within the lumbosacral area. The cows were administered PGF 8 day after estrus in the presence of a corpus luteum, and randomly assigned to the following groups: G1 (positive control), 15 mg, IM (n = 23); G2, 7.5 mg, IM (n = 23); G3, 3.75 mg, I M (n = 24); G4, 7.5 mg, IVSM (n = 25); G5, 3.75 mg, Bai-hui acupoint (n = 24); and G6, 1.5 mg, Bai-hui acupoint (n = 25). The results indicated that 50% of a conventional dose of PGF (7.5 mg) resulted in a complete luteal regression (plasma progesterone < 1 ng/ml) at Hour 48, and hastened estrus, regardless of whether or not PGF was administered IM or IVSM. Comparatively, 10 or 25% of the conventional dose, even when administered to the Bai-hui acupoint, resulted in an initial reduction in the concentration of progesterone at Hour 24, followed by an increase observed at Hour 48. In conclusion, 25% of a conventional PGF dose administered via the Bai-hui acupoint proved inadequate to induce a complete luteal regression, whereas 50% of a conventional dose administered IM or IVSM was found to be the minimal dose required to induce effectively a complete luteal regression, and to precipitate the onset of estrus in nonlactating Nelore cows.en
dc.description.affiliationSão Paulo State Univ, Dept Anim Reprod & Vet Radiol, Sch Vet Med & Anim Sci, BR-18618000 Botucatu, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, Dept Anim Reprod & Vet Radiol, Sch Vet Med & Anim Sci, BR-18618000 Botucatu, SP, Brazil
dc.format.extent387-390
dc.identifierhttp://dx.doi.org/10.4142/jvs.2006.7.4.387
dc.identifier.citationJournal of Veterinary Science. Seoul: Korean Society Veterinary Science, v. 7, n. 4, p. 387-390, 2006.
dc.identifier.doi10.4142/jvs.2006.7.4.387
dc.identifier.fileWOS000242818900014.pdf
dc.identifier.issn1229-845X
dc.identifier.lattes0042905415711199
dc.identifier.lattes3569421209341579
dc.identifier.lattes8134606270913860
dc.identifier.lattes9224380586557664
dc.identifier.orcid0000-0002-2245-800X
dc.identifier.urihttp://hdl.handle.net/11449/14492
dc.identifier.wosWOS:000242818900014
dc.language.isoeng
dc.publisherKorean Society Veterinary Science
dc.relation.ispartofJournal of Veterinary Science
dc.relation.ispartofjcr1.327
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectbai-hui acupointpt
dc.subjectcowspt
dc.subjectluprostiolpt
dc.subjectluteolysispt
dc.subjectprogesteronept
dc.subjectprostaglandinpt
dc.titleAlternative low doses and routes of administering a prostaglandin F2 alpha analogue to induce luteolysis in Nelore cowsen
dc.typeArtigo
dcterms.licensehttp://www.vetsci.org/submission/page/epolicy.html
dcterms.rightsHolderKorean Society Veterinary Science
unesp.author.lattes3569421209341579
unesp.author.lattes8134606270913860
unesp.author.lattes9224380586557664
unesp.author.lattes0042905415711199[1]
unesp.author.orcid0000-0002-2245-800X[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária e Zootecnia, Botucatupt

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