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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
08/04/2022 |
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Data da última atualização: |
08/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, M. E. F.; ARRAIS, A. M.; MELLO, M. R. B. de; VERGANI, G. B.; FIGUEIRA, L. M.; ESTEVES, S. N.; PEREIRA, V. S. d. A.; GARCIA, A. R.; BARTLEWSKI, P. M.; FONSECA, J. F. da. |
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Afiliação: |
MARIA EMILIA FRANCO OLIVEIRA; ALINE MATOS ARRAIS; MARCO ROBERTO BOURG DE MELLO; GABRIEL BRUN VERGANI; LUCAS MACHADO FIGUEIRA; SÉRGIO NOVITA ESTEVES; VERÔNICA SCHINAIDER DO AMARAL PEREIRA; ALEXANDRE ROSSETTO GARCIA; PAWEL MIECZYSLAW BARTLEWSKI; JEFERSON FERREIRA DA FONSECA, CNPC. |
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Título: |
Study of the factors affecting embryo yields and quality in superovulated Morada Nova ewes that underwent non-surgical uterine flushing. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Reproduction in Domestic Animals, v. 57, n. 4, p. 393-401, Jan. 2022. |
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DOI: |
10.1111/rda.14077 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The present study compared the outcomes of in vivo embryo production in Morada Nova ewes subjected to either 9-day (G-9SOV , n = 21) or 12-day (G-12SOV , n = 21) progesterone (P4 )-based estruses synchronization protocol coupled with superovulatory treatment with decreasing doses of porcine follicle-stimulating hormone (133 mg of pFSH given over 3 days). Non-surgical embryo recovery (NSER) was performed 6-7 days after the onset of oestrus. Total antral follicle count doubled from the first to the sixth pFSH dose in both groups (p < .05). Oestrus responses did not vary between the two groups of animals (95.2%). Corpora lutea (CL) were detected in 85.0% and 60.0% of ewes that previously manifested oestrus behaviour in G-9SOV and G-12SOV respectively. NSER was successfully completed in 86.2% of ewes that had CL (p > .05). The mean number of CL per ewe/successfully flushed donor ewe was greater (p < .05) in G-12SOV (12.3 ± 1.7/12.1 ± 1.9) than in G-9SOV (7.9 ± 1.4/8.2 ± 1.6). Mean numbers of retrieved blastocysts and viable embryos were greater (p > .05) in G-12SOV (5.8 ± 1.9 and 3.7 ± 1.7) than G-9SOV (3.5 ± 1.1 and 0.8 ± 0.3 respectively). The total follicle count (all follicles ?2 mm in diameter) at the sixth pFSH dose (at P4 -device removal) was positively correlated (p < .05) with the number of CL (r = .95) and viable embryos (r = .91) in G-12SOV . The ewes with ?10 Cl (48% of all flushed donors) yielded 80.5% of viable embryos. In summary: (a) Morada Nova ewes from G-12SOV group had better superovulatory responses compared with G-9SOV group; (b) total follicle count at the last pFSH dose was a good predictor of superovulatory responses only in the ewes primed with P4 for 12 days; and (c) animals with ?10 ovulations are main contributors to viable embryo production in Morada Nova ewes. MenosAbstract: The present study compared the outcomes of in vivo embryo production in Morada Nova ewes subjected to either 9-day (G-9SOV , n = 21) or 12-day (G-12SOV , n = 21) progesterone (P4 )-based estruses synchronization protocol coupled with superovulatory treatment with decreasing doses of porcine follicle-stimulating hormone (133 mg of pFSH given over 3 days). Non-surgical embryo recovery (NSER) was performed 6-7 days after the onset of oestrus. Total antral follicle count doubled from the first to the sixth pFSH dose in both groups (p < .05). Oestrus responses did not vary between the two groups of animals (95.2%). Corpora lutea (CL) were detected in 85.0% and 60.0% of ewes that previously manifested oestrus behaviour in G-9SOV and G-12SOV respectively. NSER was successfully completed in 86.2% of ewes that had CL (p > .05). The mean number of CL per ewe/successfully flushed donor ewe was greater (p < .05) in G-12SOV (12.3 ± 1.7/12.1 ± 1.9) than in G-9SOV (7.9 ± 1.4/8.2 ± 1.6). Mean numbers of retrieved blastocysts and viable embryos were greater (p > .05) in G-12SOV (5.8 ± 1.9 and 3.7 ± 1.7) than G-9SOV (3.5 ± 1.1 and 0.8 ± 0.3 respectively). The total follicle count (all follicles ?2 mm in diameter) at the sixth pFSH dose (at P4 -device removal) was positively correlated (p < .05) with the number of CL (r = .95) and viable embryos (r = .91) in G-12SOV . The ewes with ?10 Cl (48% of all flushed donors) yielded 80.5% of viable embryos. In summary: (a) Morada Nova ewes fr... Mostrar Tudo |
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Palavras-Chave: |
Follicle Stimulating Hormone; In vivo embryo production; Naturalized sheep breed; Non-surgical embryo recovery; NSER; Ovarian Follicle. |
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Thesaurus Nal: |
Corpus luteum; Estrus synchronization; Sheep; Superovulation. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02983naa a2200361 a 4500
001 2142007
005 2022-04-08
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1111/rda.14077$2DOI
100 1 $aOLIVEIRA, M. E. F.
245 $aStudy of the factors affecting embryo yields and quality in superovulated Morada Nova ewes that underwent non-surgical uterine flushing.$h[electronic resource]
260 $c2022
520 $aAbstract: The present study compared the outcomes of in vivo embryo production in Morada Nova ewes subjected to either 9-day (G-9SOV , n = 21) or 12-day (G-12SOV , n = 21) progesterone (P4 )-based estruses synchronization protocol coupled with superovulatory treatment with decreasing doses of porcine follicle-stimulating hormone (133 mg of pFSH given over 3 days). Non-surgical embryo recovery (NSER) was performed 6-7 days after the onset of oestrus. Total antral follicle count doubled from the first to the sixth pFSH dose in both groups (p < .05). Oestrus responses did not vary between the two groups of animals (95.2%). Corpora lutea (CL) were detected in 85.0% and 60.0% of ewes that previously manifested oestrus behaviour in G-9SOV and G-12SOV respectively. NSER was successfully completed in 86.2% of ewes that had CL (p > .05). The mean number of CL per ewe/successfully flushed donor ewe was greater (p < .05) in G-12SOV (12.3 ± 1.7/12.1 ± 1.9) than in G-9SOV (7.9 ± 1.4/8.2 ± 1.6). Mean numbers of retrieved blastocysts and viable embryos were greater (p > .05) in G-12SOV (5.8 ± 1.9 and 3.7 ± 1.7) than G-9SOV (3.5 ± 1.1 and 0.8 ± 0.3 respectively). The total follicle count (all follicles ?2 mm in diameter) at the sixth pFSH dose (at P4 -device removal) was positively correlated (p < .05) with the number of CL (r = .95) and viable embryos (r = .91) in G-12SOV . The ewes with ?10 Cl (48% of all flushed donors) yielded 80.5% of viable embryos. In summary: (a) Morada Nova ewes from G-12SOV group had better superovulatory responses compared with G-9SOV group; (b) total follicle count at the last pFSH dose was a good predictor of superovulatory responses only in the ewes primed with P4 for 12 days; and (c) animals with ?10 ovulations are main contributors to viable embryo production in Morada Nova ewes.
650 $aCorpus luteum
650 $aEstrus synchronization
650 $aSheep
650 $aSuperovulation
653 $aFollicle Stimulating Hormone
653 $aIn vivo embryo production
653 $aNaturalized sheep breed
653 $aNon-surgical embryo recovery
653 $aNSER
653 $aOvarian Follicle
700 1 $aARRAIS, A. M.
700 1 $aMELLO, M. R. B. de
700 1 $aVERGANI, G. B.
700 1 $aFIGUEIRA, L. M.
700 1 $aESTEVES, S. N.
700 1 $aPEREIRA, V. S. d. A.
700 1 $aGARCIA, A. R.
700 1 $aBARTLEWSKI, P. M.
700 1 $aFONSECA, J. F. da
773 $tReproduction in Domestic Animals$gv. 57, n. 4, p. 393-401, Jan. 2022.
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