Hormonal-Induced Cervical Relaxation During Diestrus in Ewes: Cervical Transposing Feasibility and Use of hCG for Rescuing Disrupted Luteal Function

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorUniversidade Federal Rural do Rio de Janeiro (UFRRJ)-
Autor(es): dc.contributorUniversidade Estadual do Norte Fluminense Darcy Ribeiro-
Autor(es): dc.contributorUniversidade Federal Fluminense (UFF)-
Autor(es): dc.creatorOliveira, Maria Emilia Franco-
Autor(es): dc.creatorArrais, Aline Matos-
Autor(es): dc.creatorVergani, Gabriel Brun-
Autor(es): dc.creatorNovita Esteves, Sergio-
Autor(es): dc.creatorSchinaider Do Amaral Pereira, Verônica-
Autor(es): dc.creatorGarcia, Alexandre Rossetto-
Autor(es): dc.creatorBastos, Rosemary-
Autor(es): dc.creatorRoberto Bourg Melo, Marco-
Autor(es): dc.creatorRios Coelho Alves, Bruna-
Autor(es): dc.creatorFerreira Fonseca, Jeferson-
Data de aceite: dc.date.accessioned2025-08-21T22:53:17Z-
Data de disponibilização: dc.date.available2025-08-21T22:53:17Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1080/10888705.2022.2141576-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246268-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246268-
Descrição: dc.descriptionCervical relaxation (CR) was performed in ewes during diestrus, to prospect a feasible protocol for non-surgical embryo transfer (NSET). In Trial 1, naturally mated ewes (n=13) received CR protocols with estradiol benzoate (EB, 1 mg on D6) and oxytocin (OT, 50 IU on D7) only (G-EB+OT) or associated with human chorionic gonadotropin (hCG, 300 IU on D7, G-EB+OT+hCG) and were compared to non-hormonally treated (G-control) ewes. Estradiol concentration increased (P<0.05) from D6 to D7 in G-EB+OT and G-EB+OT+hCG, then decreased (P<0.05) on D8. The G-EB+OT had reduced (P<0.05) progesterone on D8, and 0% (0/5) pregnancy, while G-control had 100% (3/3) conception rate. The treatment with hCG mitigated the progesterone drop on D8 and resulted in 50% (2/4) conception rate. In Trial 2, cervical transposing success after treatment with EB, OT, and hCG on D6 and D7 was assessed in nulliparous (n=25) and multiparous (n=30) ewes. The EB+OT+hCG protocol allowed efficient cervical transposition (~78% of cervical transposition success into ~5 min) in nulliparous and multiparous females and did not alter total and blood perfusion areas of corpora lutea (CL). The use of EB+OT+hCG was efficient to ensure effective cervical transposing in nulliparous and multiparous ewes, with no apparent deleterious effect on CL function, and may contribute to animal welfare, allowing a less invasive NSET procedure.-
Descrição: dc.descriptionFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista (UNESP)-
Descrição: dc.descriptionEmbrapa Caprinos e Ovinos (CNPC)-
Descrição: dc.descriptionUniversidade Federal Rural do Rio de Janeiro (UFRRJ)-
Descrição: dc.descriptionEmbrapa Pecuária Sudeste (CPPSE)-
Descrição: dc.descriptionUniversidade Estadual do Norte Fluminense Darcy Ribeiro-
Descrição: dc.descriptionUniversidade Federal Fluminense-
Descrição: dc.descriptionFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationJournal of Applied Animal Welfare Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectanimal welfare-
Palavras-chave: dc.subjectEmbryo transfer-
Palavras-chave: dc.subjectnon-surgical-
Palavras-chave: dc.subjectpharmacological-
Palavras-chave: dc.subjecttranscervical-
Título: dc.titleHormonal-Induced Cervical Relaxation During Diestrus in Ewes: Cervical Transposing Feasibility and Use of hCG for Rescuing Disrupted Luteal Function-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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