Embryo yield and quality are associated with progestogen treatment during superovulation protocol in lactating Lacaune ewes

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de Lavras (UFLA)-
Autor(es): dc.contributorUniversidade Federal Fluminense (UFF)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.creatorFigueira, Lucas Machado-
Autor(es): dc.creatorAlves, Nadja Gomes-
Autor(es): dc.creatorRosa e Silva Maia, Ana Lucia-
Autor(es): dc.creatorGoncalves de Souza-Fabjan, Joanna Maria-
Autor(es): dc.creatorTavares Pereira Batista, Ribrio Ivan-
Autor(es): dc.creatorCruz Morais, Maria Clara da-
Autor(es): dc.creatorLima, Renato Ribeiro de-
Autor(es): dc.creatorFranco Oliveira, Maria Emilia [UNESP]-
Autor(es): dc.creatorFonseca, Jeferson Ferreira da-
Data de aceite: dc.date.accessioned2022-02-22T00:54:26Z-
Data de disponibilização: dc.date.available2022-02-22T00:54:26Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.theriogenology.2020.06.004-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/208793-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/208793-
Descrição: dc.descriptionThis study assessed the effect of progestogen treatment length on ovarian parameters and embryo yield in superovulated Lacaune ewes collected by nonsurgical embryo recovery. Twenty-three lactating ewes were superovulated 30 d apart using a cross-over design. All ewes received 60 mg of MAP intravaginal sponges for 6 (G-6 group) or 9 (G-9 group) d. A total dose of 133 mg pFSH was given in six decreasing doses (twice a day) starting at 60 h before device removal. Ultrasound examination of the ovaries was performed at the first pFSH injection and one day before embryo recovery, which was performed 6-7 d after the onset of estrus. Embryo recovery was conducted only in ewes that expressed estrus and were mated. There was no difference (P>0.05) in the total number of follicles between G-6 (15.7 +/- 1.0) and G9 (15.6 +/- 0.8) at the time of the first pFSH treatment. The percentage of responding donors with >= 3 corpora lutea (CL; 78.2% [18/23] vs 69.5% [16/23]), mean (+/- SEM) CL number (7.0 +/- 1.2 vs 8.1 +/- 1.6), transcervical passage rate (94.4% [17/18] vs 83.3% [15/18], and ova/embryo recovery rate (54.5% [60/110] vs 68.0% [83/122]) were not different (P > 0.05) between the G-6 and G-9 groups. However, the mean number of viable embryos was lower (P < 0.05) in the G-6 group (1.8 +/- 0.7) than in the G-9 group. (3.5 +/- 1.1). In conclusion, treatment with an intravaginal MAP sponge for 9 d during a superovulation protocol is beneficial for viable embryo yield in Lacaune ewes out of the breeding season. (C) 2020 Elsevier Inc. All rights reserved.-
Descrição: dc.descriptionEmbrapa Goats and Sheep-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionUniv Fed Lavras, Av Doutor Sylvio Menicucci 1001, BR-37200900 Lavras, MG, Brazil-
Descrição: dc.descriptionUniv Fed Fluminense, Rua Vital Brazil Filho 64, BR-24220000 Niteroi, RJ, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Via Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP, Brazil-
Descrição: dc.descriptionEmbrapa Caprinos & Ovinos, Estr Sobral Groairas,Km 4,CP D10, BR-62011000 Sobral, CE, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Via Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP, Brazil-
Descrição: dc.descriptionEmbrapa Goats and Sheep: Superov 22.13.06.026.00.03-
Descrição: dc.descriptionEmbrapa Goats and Sheep: 22.13.06.026.00.04-
Descrição: dc.descriptionFAPEMIG: CVZ-PPM 00201-17-
Descrição: dc.descriptionCAPES: 001-
Formato: dc.format132-138-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationTheriogenology-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectDairy sheep-
Palavras-chave: dc.subjectMOET-
Palavras-chave: dc.subjectSuperovulation-
Palavras-chave: dc.subjectTranscervical-
Palavras-chave: dc.subjectUterine flushing-
Título: dc.titleEmbryo yield and quality are associated with progestogen treatment during superovulation protocol in lactating Lacaune ewes-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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