Effects of eCG are more pronounced in primiparous than multiparous Bos indicus cows submitted to a timed artificial insemination protocol

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorSales, J. N. S.-
Autor(es): dc.creatorBottino, M. P.-
Autor(es): dc.creatorSilva, L. A. C. L.-
Autor(es): dc.creatorGirotto, R. W.-
Autor(es): dc.creatorMassoneto, J. P. M.-
Autor(es): dc.creatorSouza, J. C.-
Autor(es): dc.creatorBaruselli, P. S.-
Data de aceite: dc.date.accessioned2026-02-09T11:35:49Z-
Data de disponibilização: dc.date.available2026-02-09T11:35:49Z-
Data de envio: dc.date.issued2018-11-05-
Data de envio: dc.date.issued2023-06-27-
Data de envio: dc.date.issued2018-11-05-
Data de envio: dc.date.issued2023-06-27-
Data de envio: dc.date.issued2016-12-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br//handle/1/57391-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0093691X16303326?via%3Dihub#!-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1143165-
Descrição: dc.descriptionThe effects of eCG on follicular growth, ovulation, and pregnancy per artificial insemination (P/AI) in multiparous and primiparous Bos indicus beef cows submitted to timed artificial insemination (TAI) were evaluated in three experiments. In experiments 1 (follicular responses; n = 64), 2 (follicular growth and ovulation rate; n = 662), and 3 (P/AI; n = 2092), cows submitted to TAI were assigned to receive one of two treatments on Day 8 of the synchronization protocol: control (no additional treatment) or eCG (300-IU of eCG intramuscularly). In experiment 1, largest follicle (LF) diameter on Day 8 (P = 0.56) and the interval from progesterone (P4)-device removal to ovulation (P = 0.79) did not differ between treatments. However, the maximum diameter of the LF (P = 0.05) and ovulation rate (P = 0.03) were greater in cows that received eCG. In experiment 2, the diameter of the LF on Day 10, follicular growth, and ovulation rate were greater in eCG-treated cows (P < 0.01). However, CL diameter was similar between treatments (P = 0.11). In experiment 3, there was a treatment-by-parity interaction (P = 0.003) on P/AI, such that treatment with eCG was more effective in primiparous cows. In conclusion, eCG treatment resulted in increased final follicular growth, ovulation rate, and fertility in B indicus cows submitted to TAI protocols, especially in primiparous cows.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceTheriogenology-
Palavras-chave: dc.subjectChorionic gonadotropin-
Palavras-chave: dc.subjectCows - Reproduction-
Palavras-chave: dc.subjectTimed artificial insemination-
Palavras-chave: dc.subjectGonadotrofina coriônica-
Palavras-chave: dc.subjectVacas - Reprodução-
Palavras-chave: dc.subjectInseminação artificial cronometrada-
Título: dc.titleEffects of eCG are more pronounced in primiparous than multiparous Bos indicus cows submitted to a timed artificial insemination protocol-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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