Occurrence of premature regression of corpus luteum in MOET programs in Dorper ewes under subtropical climate

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Federal Fluminense (UFF)-
Autor(es): dc.contributorUnigranrio-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.creatorRocha, Marcela S.-
Autor(es): dc.creatorMaia, Ana Lucia R.S.-
Autor(es): dc.creatorRangel, Paulo Sérgio C.-
Autor(es): dc.creatorOliveira, Maria Emilia F.-
Autor(es): dc.creatorFonseca, Jeferson F.-
Autor(es): dc.creatorOliveira, Cláudio A.-
Autor(es): dc.creatorSouza-Fabjan, Joanna M.G.-
Data de aceite: dc.date.accessioned2025-08-21T21:01:00Z-
Data de disponibilização: dc.date.available2025-08-21T21:01:00Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.livsci.2021.104808-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/223097-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/223097-
Descrição: dc.descriptionPremature regression of corpus luteum (PRCL) is a functional alteration that occurs mainly in superovulated females hampering the widespread use of multiple ovulation and embryo transfer (MOET). This study evaluated the association of donor age (3–9 years old), body condition score (2 to 4.5), number of MOET (1 to 5) repetitions and season (breeding, transition, or non-breeding) with the occurrence of PRCL in ewes. Multiparous Dorper ewes (n = 44) were subjected to MOET during four consecutive years, with the same superovulatory treatment. Before embryo collection, ovaries were laparoscopically performed to assess the corpora lutea (CL). Overall, the total PRCL occurrence was 24.7% (26/105) and it had no association with the studied factors. Percentages of ewes that presented PRCL once or twice were 45.5% (20/44) and 6.8% (3/44), respectively, while the percentage of ewes that had no PRCL was 47.7% (21/44). Proportions of PRCL were similar (P > 0.05) among breeding (21%), transition (31%), and non-breeding (24%) season; and also (P > 0.05) in lower/thin (20%), average/good (24%), and higher/fat (29%) females. In conclusion, although this phenomenon had no association to the factors studied, the occurrence of PRCL affects ∼25% of ewes subjected to MOET procedures and future alternatives to circumvent this obstacle need to be developed.-
Descrição: dc.descriptionFaculdade de Medicina Veterinária e Zootecnia Universidade de São Paulo-
Descrição: dc.descriptionFaculdade de Veterinária Universidade Federal Fluminense-
Descrição: dc.descriptionUnigranrio-
Descrição: dc.descriptionFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista-
Descrição: dc.descriptionEmbrapa Caprinos e Ovinos-
Descrição: dc.descriptionFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista-
Idioma: dc.languageen-
Relação: dc.relationLivestock Science-
Relação: dc.relation231635-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAbnormal CL-
Palavras-chave: dc.subjectLuteal dysfunction-
Palavras-chave: dc.subjectSeasonality, Sheep-
Palavras-chave: dc.subjectSuperovulation-
Título: dc.titleOccurrence of premature regression of corpus luteum in MOET programs in Dorper ewes under subtropical climate-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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