Ovarian activity and plasma concentrations of progesterone and estradiol during pregnancy in jennies

dc.contributor.authorMeira, Cezinande de [UNESP]
dc.contributor.authorFerreira, JCP
dc.contributor.authorPapa, Frederico Ozanam [UNESP]
dc.contributor.authorHenry, M.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Minas Gerais (UFMG)
dc.date.accessioned2014-02-26T17:13:08Z
dc.date.accessioned2014-05-20T13:41:39Z
dc.date.available2014-02-26T17:13:08Z
dc.date.available2014-05-20T13:41:39Z
dc.date.issued1998-06-01
dc.description.abstractThe objectives of this study were to determine ovarian activity (with ultrasound) and plasma concentrations of progesterone and estradiol during pregnancy in jennies. There was considerable ovarian activity during the second month of pregnancy. Secondary corpora lutea (total of 2 to 7 per jenny) were formed (mainly by luteinization) starting on Day 41.8 +/- 1.0 (range Days 38 to 46; ovulation = Day 0). The echogenicity of the primary and secondary corpora lutea gradually decreased during pregnancy. Plasma progesterone concentrations increased between Days 0 and 10 (0.9 and 19.9 ng/mL, respectively), gradually decreased to Day 30 (12.1 ng/mL), increased between Days 30 and 40 (plateau, at approximately 17 ng/mL), gradually declined from Days 110 to 160 (nadir of approximately 6 ng/mL), and remained nearly constant until increasing again just before parturition. Plasma estradiol concentrations increased gradually from Day 65, peaked (1.2 ng/mL) on Day 165 (greater than or equal to 1 ng/mL on Days 150 to 210), and decreased thereafter, with very low concentrations during the last 20 d before parturition. Ovarian function and hormone profiles were generally similar to those previously reported during pregnancy in mares. (C) 1998 by Elsevier B.V.en
dc.description.affiliationUNESP, FMVZ, Sch Vet Med & Anim Sci, Dept Anim Reprod & Vet Radiol, BR-18618000 Botucatu, SP, Brazil
dc.description.affiliationUniv Fed Minas Gerais, Sch Vet Med, BR-30161970 Belo Horizonte, MG, Brazil
dc.description.affiliationUnespUNESP, FMVZ, Sch Vet Med & Anim Sci, Dept Anim Reprod & Vet Radiol, BR-18618000 Botucatu, SP, Brazil
dc.format.extent1465-1473
dc.identifierhttp://dx.doi.org/10.1016/S0093-691X(98)00092-2
dc.identifier.citationTheriogenology. New York: Elsevier B.V., v. 49, n. 8, p. 1465-1473, 1998.
dc.identifier.doi10.1016/S0093-691X(98)00092-2
dc.identifier.issn0093-691X
dc.identifier.lattes0042905415711199
dc.identifier.lattes3569421209341579
dc.identifier.lattes0640158639112242
dc.identifier.orcid0000-0002-2245-800X
dc.identifier.urihttp://hdl.handle.net/11449/14427
dc.identifier.wosWOS:000074350200004
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofTheriogenology
dc.relation.ispartofjcr2.136
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectpregnancypt
dc.subjectdonkeypt
dc.subjectprogesteronept
dc.subjectestradiolpt
dc.subjectultrasonographypt
dc.titleOvarian activity and plasma concentrations of progesterone and estradiol during pregnancy in jenniesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes3569421209341579
unesp.author.lattes0640158639112242
unesp.author.lattes0042905415711199[1]
unesp.author.orcid0000-0002-5858-8535[3]
unesp.author.orcid0000-0002-2245-800X[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária e Zootecnia, Botucatupt

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