Efficiency and accuracy of different ovulation inducers after progesterone device removal in crossbred multiparous cows

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorPontifícia Universidade Católica do Paraná (PUCPR)-
Autor(es): dc.contributorUniversidade Federal do Paraná (UFPR)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorRamos, Isabella Sellmer-
Autor(es): dc.creatorSchaus, Marcos-
Autor(es): dc.creatorBacher, Louise Helene-
Autor(es): dc.creatorKozicki, Luiz Ernandes-
Autor(es): dc.creatorda Silveira Padilha, Isabela-
Autor(es): dc.creatorSegui, Marcio Saporski-
Autor(es): dc.creatorGassenferth, Grassiele-
Autor(es): dc.creatorWeiss, Romildo Romualdo-
Autor(es): dc.creatorDell’Aqua, José Antonio-
Data de aceite: dc.date.accessioned2025-08-21T20:15:57Z-
Data de disponibilização: dc.date.available2025-08-21T20:15:57Z-
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/10.1590/1809-6891v23e-72441P-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246722-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246722-
Descrição: dc.descriptionThe aim of this study was to verify the efficiency and ovulation time after the administration of different inducers for synchronization of ovulation in beef cows. One hundred and eight non-lactating cows were distributed into the control group (CG; untreated; n=28), estradiol benzoate (EB) group (EBG; n=28); 17 beta-estradiol (17ßE) group (17ßEG; n=28), and deslorelin (DES) group (DESG; n=24). On day minus 11 (D-11) of the protocol, the CG underwent application of cloprostenol and ultrasound examination (US); on D0, progesterone (P4) was inserted plus EB; on D7, cloprostenol was applied; on D9, P4 was removed and cloprostenol plus 400 IU of equine chorionic gonadotropin (eCG) was injected. The EBG was subjected to treatment identical to that of the CG, except on D10, when the cows received EB. The 17ßE was subjected to the same protocol used in the CG except for the administration of 17ßE on D10. And, the DESG was subjected to the same treatment as the CG, except on D10, when the group received DES acetate. Twelve hours after the administration of EB, 17ßE and DES, ovarian US were performed every 6 hours. The preovulatory follicle (POF) diameters measured before ovulation were 19.5; 14.7; 18.7 and 19.8 mm respectively for CG, EBG, 17ßEG and DESG; and the time intervals between inducer application and ovulation were 20.2; 18.9; 21.0 and 22.5 hours respectively. In conclusion, all ovulation inducers were efficient in promoting ovulation; the inducers caused ovulation between 18.9 and 22.5 hours; EB promoted ovulation in a shorter time (P<0.05); 17ßE and DES showed greater variation in application/ovulation time between groups.-
Descrição: dc.descriptionPontifícia Universidade Católica do Paraná (PUCPR), Paraná-
Descrição: dc.descriptionUniversidade Federal do Paraná (UFPR), Paraná-
Descrição: dc.descriptionUniversidade Estadual Paulista (UNESP), Botucatú-
Descrição: dc.descriptionUniversidade Estadual Paulista (UNESP), Botucatú-
Idioma: dc.languagept_BR-
Relação: dc.relationCiencia Animal Brasileira-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subject17 beta-estradiol-
Palavras-chave: dc.subjectCows-
Palavras-chave: dc.subjectDeslorelin acetate-
Palavras-chave: dc.subjectOvulation inductors-
Palavras-chave: dc.subjectOvulation synchronization-
Título: dc.titleEfficiency and accuracy of different ovulation inducers after progesterone device removal in crossbred multiparous cows-
Título: dc.titleEficiência e acurácia de diferentes indutores de ovulação após a remoção do dispositivo de progesterona em vacas mestiças multíparas-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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