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| Registros recuperados : 384 | |
| Registros recuperados : 384 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos; Embrapa Pecuária Sudeste. |
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Data corrente: |
23/05/2023 |
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Data da última atualização: |
28/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
DIAS, J. H.; VERGANI; GONÇALVES, J. D.; OLIVEIRA, T. A.; PENITENTE-FILHO, J. M.; PEREIRA, V. S. do A.; ESTEVES, S. N.; GARCIA, A. R.; BATISTA, R. I. T. P.; OLIVEIRA, M. E. F.; SOUZA-FABJAN, J. M. G.; FONSECA, J. F. da. |
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Afiliação: |
J. H. DIAS, Universidade Federal de Viçosa; G. B. VERGANI, Universidade Estadual Paulista; J. D. GONÇALVES, Universidade Estadual Paulista; T. A. OLIVEIRA, Universidade Federal Fluminense; J. M. PENITENTE-FILHO, Universidade Federal de Viçosa; VERONICA SCHINAIDER DO A PEREIRA, CPPSE; SERGIO NOVITA ESTEVES, CPPSE; ALEXANDRE ROSSETTO GARCIA, CPPSE; R. I. T. P. BATISTA, Universidade Federal Fluminense; M. E. F. OLIVEIRA, Universidade Estadual Paulista; J. M. G. SOUZA-FABJAN, Universidade Federal Fluminense; JEFERSON FERREIRA DA FONSECA, CNPC. |
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Título: |
Different doses of pFSH are effective to promote follicular growth, superovulatory response, and embryo yield in White Dorper ewes. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Small Ruminant Research, v. 220, n. 103, mar. 2023, 106914. |
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DOI: |
https://doi.org/10.1016/j.smallrumres.2023.106914 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: This study evaluated the effect of 250, 333, or 400 IU of a commercial porcine stimulating-follicle hormone (pFSH) on follicular growth, superovulatory (SOV) response, and embryo yield in White Dorper sheep. Ewes received an induced-ovulation protocol (D0 = progesterone (P4) device insertion) and superovulation starting 60 h before P4 withdrawal (D9), which consisted of six decreasing doses of 250 IU (G250; n = 15), 333 IU (G333; n = 15), or 400 IU (G400; n = 14) of pFSH. Ewes also received 50 µg of gonadotropin-releasing hormone (GnRH) analog on D10 and 300 IU of hCG on D13. Ewes were mated and submitted to non-surgical embryo recovery (NSER). Ultrasound evaluations were performed on D6, D7, D8, D9, and D16. The overall responding donor rate (≥3 CL) was 86.4% (38/44). The mean number of large follicles was higher (P < 0.05) in all groups on D8 (6.2 ± 0.9, 7.7 ± 0.9, and 8.3 ± 1.1) and D9 (11.1 ± 0.6, 10.4 ± 1.0, and 11.5 ± 0.9). Non-surgical embryo recovery procedures were successfully performed in 60.5% (23/38) of females. The CL count in successfully flushed ewes was greater (P < 0.05) in G333 (12.7 ± 2.3) and G400 (12.0 ± 1.3) than in G250 (6.0 ± 1.1). The recovery rate (44.4%, 57.3%, and 50.0%) and numbers of transferable embryos (2.3 ± 1.1, 6.1 ± 2.6, and 4.5 ± 1.3) did not differ (P > 0.05) among groups. All protocols were efficient in promoting follicular growth and adequate superovulatory response and embryo yield. |
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Palavras-Chave: |
Follicular dynamics; FSH; MOET; Ovarian superestimulation; Ovine; PFSH. |
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Thesaurus NAL: |
Ewes; Reproduction; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
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024 7 $ahttps://doi.org/10.1016/j.smallrumres.2023.106914$2DOI
100 1 $aDIAS, J. H.
245 $aDifferent doses of pFSH are effective to promote follicular growth, superovulatory response, and embryo yield in White Dorper ewes.$h[electronic resource]
260 $c2023
520 $aAbstract: This study evaluated the effect of 250, 333, or 400 IU of a commercial porcine stimulating-follicle hormone (pFSH) on follicular growth, superovulatory (SOV) response, and embryo yield in White Dorper sheep. Ewes received an induced-ovulation protocol (D0 = progesterone (P4) device insertion) and superovulation starting 60 h before P4 withdrawal (D9), which consisted of six decreasing doses of 250 IU (G250; n = 15), 333 IU (G333; n = 15), or 400 IU (G400; n = 14) of pFSH. Ewes also received 50 µg of gonadotropin-releasing hormone (GnRH) analog on D10 and 300 IU of hCG on D13. Ewes were mated and submitted to non-surgical embryo recovery (NSER). Ultrasound evaluations were performed on D6, D7, D8, D9, and D16. The overall responding donor rate (≥3 CL) was 86.4% (38/44). The mean number of large follicles was higher (P < 0.05) in all groups on D8 (6.2 ± 0.9, 7.7 ± 0.9, and 8.3 ± 1.1) and D9 (11.1 ± 0.6, 10.4 ± 1.0, and 11.5 ± 0.9). Non-surgical embryo recovery procedures were successfully performed in 60.5% (23/38) of females. The CL count in successfully flushed ewes was greater (P < 0.05) in G333 (12.7 ± 2.3) and G400 (12.0 ± 1.3) than in G250 (6.0 ± 1.1). The recovery rate (44.4%, 57.3%, and 50.0%) and numbers of transferable embryos (2.3 ± 1.1, 6.1 ± 2.6, and 4.5 ± 1.3) did not differ (P > 0.05) among groups. All protocols were efficient in promoting follicular growth and adequate superovulatory response and embryo yield.
650 $aEwes
650 $aReproduction
650 $aSheep
653 $aFollicular dynamics
653 $aFSH
653 $aMOET
653 $aOvarian superestimulation
653 $aOvine
653 $aPFSH
700 1 $aVERGANI
700 1 $aGONÇALVES, J. D.
700 1 $aOLIVEIRA, T. A.
700 1 $aPENITENTE-FILHO, J. M.
700 1 $aPEREIRA, V. S. do A.
700 1 $aESTEVES, S. N.
700 1 $aGARCIA, A. R.
700 1 $aBATISTA, R. I. T. P.
700 1 $aOLIVEIRA, M. E. F.
700 1 $aSOUZA-FABJAN, J. M. G.
700 1 $aFONSECA, J. F. da
773 $tSmall Ruminant Research$gv. 220, n. 103, mar. 2023, 106914.
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