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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
11/07/2025 |
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Data da última atualização: |
11/07/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CÔRTES, L. R.; RODRIGUES, J. N. R.; VERGANI, G. B.; FIGUEIRA, L. M.; RANGEL, P. S. C.; BATISTA, R. I. T. P.; FREITAS, B. W. de; BRANDÃO, F. Z.; SOUZA-FABJAN, J. M. G.; FONSECA, J. F. da. |
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Afiliação: |
LUANA RANGEL CÔRTES, UNIVERSIDADE FEDERAL DE VIÇOSA; JULIANA NASCIMENTO DUARTE RODRIGUES, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; GABRIEL BRUN VERGANI, SÃO PAULO STATE UNIVERSITY; LUCAS MACHADO FIGUEIRA, UNIVERSIDADE FEDERAL DE VIÇOSA; PAULO SERGIO CERQUEIRA RANGEL, UNIVERSIDADE FEDERAL FLUMINENSE; RIBRIO IVAN TAVARES PEREIRA BATISTA, UNIVERSIDADE FEDERAL FLUMINENSE; BRUNA WADDINGTON DE FREITAS, UNIVERSIDADE FEDERAL DE VIÇOSA; FELIPE ZANDONADI BRANDÃO, UNIVERSIDADE FEDERAL FLUMINENSE; JOANNA MARIA G. SOUZA-FABJAN, UNIVERSIDADE FEDERAL FLUMINENSE; JEFERSON FERREIRA DA FONSECA, CNPC. |
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Título: |
Effects of adding equine chorionic gonadotropin (eCG) to cloprostenol-based estrus synchronization protocol on luteogenesis, pregnancy rate, and embryo development in cyclic dairy goats. |
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Ano de publicação: |
2025 |
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Fonte/Imprenta: |
Small Ruminant Research, v. 251, 107568, Oct. 2025. |
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DOI: |
https://doi.org/10.1016/j.smallrumres.2025.107568 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract - This study assessed, in cyclic goats, the impact of adding eCG to a cloprostenol-based estrus synchronization protocol on follicular, ovulatory, and luteal dynamics, as well as pregnancy rates and embryo outcomes after non-surgical recovery. Dairy goats received two doses of 131.5 μg of cloprostenol at 7.5-day intervals, with 100 IU of eCG (G-eCG, n = 49) on D7.5 or without (G-saline, n = 56). Estrous response, interval from second dose of cloprostenol to onset of estrus, interval from onset of estrus to ovulation, interval from second dose of cloprostenol to ovulation, animals ovulating, diameter of the ovulatory follicle, number of CL and pregnancy rates were similar (P > 0.05) between the groups, but variance was lower (P < 0.05) in the G-eCG group for the intervals from estrus onset to ovulation (960.9 vs 64.0 h) and from the second dose of cloprostenol to ovulation (1348.4 vs 448.4 h). Luteal area and the vascularized luteal area were significantly larger (P < 0.05) in the G-eCG (2.38 ± 0.11 cm² and 0.45 ± 0.02 cm², respectively) compared to the G-saline (1.88 ± 0.09 cm² and 0.35 ± 0.03 cm², respectively). No differences (P > 0.05) were found between groups for any major efficiency parameter related to non-surgical embryo collection, except for the viable embryo rate, which was significantly higher (P < 0.05) in the G-eCG (100 %) compared to the G-saline (40 %). Adding 100 IU of eCG to the synchronization protocol can enhance estrus synchrony, ovulatory, and luteal parameters, improving conditions for TAI and embryo development in dairy goats. MenosAbstract - This study assessed, in cyclic goats, the impact of adding eCG to a cloprostenol-based estrus synchronization protocol on follicular, ovulatory, and luteal dynamics, as well as pregnancy rates and embryo outcomes after non-surgical recovery. Dairy goats received two doses of 131.5 μg of cloprostenol at 7.5-day intervals, with 100 IU of eCG (G-eCG, n = 49) on D7.5 or without (G-saline, n = 56). Estrous response, interval from second dose of cloprostenol to onset of estrus, interval from onset of estrus to ovulation, interval from second dose of cloprostenol to ovulation, animals ovulating, diameter of the ovulatory follicle, number of CL and pregnancy rates were similar (P > 0.05) between the groups, but variance was lower (P < 0.05) in the G-eCG group for the intervals from estrus onset to ovulation (960.9 vs 64.0 h) and from the second dose of cloprostenol to ovulation (1348.4 vs 448.4 h). Luteal area and the vascularized luteal area were significantly larger (P < 0.05) in the G-eCG (2.38 ± 0.11 cm² and 0.45 ± 0.02 cm², respectively) compared to the G-saline (1.88 ± 0.09 cm² and 0.35 ± 0.03 cm², respectively). No differences (P > 0.05) were found between groups for any major efficiency parameter related to non-surgical embryo collection, except for the viable embryo rate, which was significantly higher (P < 0.05) in the G-eCG (100 %) compared to the G-saline (40 %). Adding 100 IU of eCG to the synchronization protocol can enhance estrus synchrony, ovulatory, and ... Mostrar Tudo |
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Palavras-Chave: |
Estrus control; NSER; Prostaglandin analogue. |
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Thesaurus Nal: |
Artificial insemination; Dairy goats; Estrus synchronization; Prostaglandins; Reproduction. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02788naa a2200337 a 4500
001 2177264
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024 7 $ahttps://doi.org/10.1016/j.smallrumres.2025.107568$2DOI
100 1 $aCÔRTES, L. R.
245 $aEffects of adding equine chorionic gonadotropin (eCG) to cloprostenol-based estrus synchronization protocol on luteogenesis, pregnancy rate, and embryo development in cyclic dairy goats.$h[electronic resource]
260 $c2025
520 $aAbstract - This study assessed, in cyclic goats, the impact of adding eCG to a cloprostenol-based estrus synchronization protocol on follicular, ovulatory, and luteal dynamics, as well as pregnancy rates and embryo outcomes after non-surgical recovery. Dairy goats received two doses of 131.5 μg of cloprostenol at 7.5-day intervals, with 100 IU of eCG (G-eCG, n = 49) on D7.5 or without (G-saline, n = 56). Estrous response, interval from second dose of cloprostenol to onset of estrus, interval from onset of estrus to ovulation, interval from second dose of cloprostenol to ovulation, animals ovulating, diameter of the ovulatory follicle, number of CL and pregnancy rates were similar (P > 0.05) between the groups, but variance was lower (P < 0.05) in the G-eCG group for the intervals from estrus onset to ovulation (960.9 vs 64.0 h) and from the second dose of cloprostenol to ovulation (1348.4 vs 448.4 h). Luteal area and the vascularized luteal area were significantly larger (P < 0.05) in the G-eCG (2.38 ± 0.11 cm² and 0.45 ± 0.02 cm², respectively) compared to the G-saline (1.88 ± 0.09 cm² and 0.35 ± 0.03 cm², respectively). No differences (P > 0.05) were found between groups for any major efficiency parameter related to non-surgical embryo collection, except for the viable embryo rate, which was significantly higher (P < 0.05) in the G-eCG (100 %) compared to the G-saline (40 %). Adding 100 IU of eCG to the synchronization protocol can enhance estrus synchrony, ovulatory, and luteal parameters, improving conditions for TAI and embryo development in dairy goats.
650 $aArtificial insemination
650 $aDairy goats
650 $aEstrus synchronization
650 $aProstaglandins
650 $aReproduction
653 $aEstrus control
653 $aNSER
653 $aProstaglandin analogue
700 1 $aRODRIGUES, J. N. R.
700 1 $aVERGANI, G. B.
700 1 $aFIGUEIRA, L. M.
700 1 $aRANGEL, P. S. C.
700 1 $aBATISTA, R. I. T. P.
700 1 $aFREITAS, B. W. de
700 1 $aBRANDÃO, F. Z.
700 1 $aSOUZA-FABJAN, J. M. G.
700 1 $aFONSECA, J. F. da
773 $tSmall Ruminant Research$gv. 251, 107568, Oct. 2025.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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