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| 11. |  | CHARCHAR, M. J. D'A.; ANJOS, J. de R. N. dos; FERNANDES, F. D. Avaliação da reação de genótipos de Panicum maximum e de Pennisetum purpureum aos patógenos associados às folhas, inflorescências e sementes. In: MOSTRA DE RESULTADOS DE PESQUISA DOS PROJETOS FINALIZADOS EM 2006 E 2007, 2., 2009, Planaltina, DF. [Anais...]. Planaltina, DF: Embrapa Cerrados, 2009. p. 67-71. (Embrapa Cerrados. Documentos, 244). Editores técnicos Eduardo Cyrino de Oliveira-Filho, Fernando Antônio Macena da Silva, Maria Lucia Meirelles, Eduardo Alano Vieira, Geraldo Bueno Martha Junior, Arminda Moreira de Carvalho, José Carlos Sousa e Silva, CPAC.| Biblioteca(s): Embrapa Cerrados. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos; Embrapa Gado de Leite. |
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Data corrente: |
11/08/2022 |
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Data da última atualização: |
11/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
DIAS, J. H.; GONCALVES, J. D.; ARRAIS, A. M.; SOUZA-FABJAN, J. M. G.; BASTOS R.; BATISTA, R. I. T. P.; SIQUEIRA, L. G. B.; OLIVEIRA, M. E. F.; FONSECA, J. F. da. |
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Afiliação: |
JENNIFFER HAUSCHILDT DIAS, Universidade Federal de Viçosa; JOEDSON DANTAS GONÇALVES, Universidade Estadual Paulista; ALINE MATOS ARRAIS, Universidade Federal Rural do Rio de Janeiro; JOANNA MARIA GONSALVES SOUZA-FABJAN, Universidade Federal Fluminense; RODOLFO BASTOS, Universidade Estadual do Norte Fluminense Darcy; RIBRIO IVAN TAVARES PEREIRA BATISTA, Universidade Federal Fluminense; LUIZ GUSTAVO BRUNO SIQUEIRA, CNPGL; MARIA ERICA F. OLIVEIRA, Universidade Estadual Paulista; JEFERSON FERREIRA DA FONSECA, CNPC. |
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Título: |
Effects of different doses of estradiol benzoate used in a cervical relaxation protocol on the success of non-surgical embryo recovery and luteal function in superovulated ewes. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Domestic Animal Endocrinology, v. 82, 106751, 2023. |
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DOI: |
https://doi.org/10.1016/j.domaniend.2022.106751 |
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Idioma: |
Inglês |
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Conteúdo: |
This study investigated the effectiveness of different doses of estradiol benzoate (EB) to promote cervical relaxation and their effects on luteal function and outcomes of non-surgical embryo recovery (NSER) in sheep. Multiparous (MULT) and nulliparous (NULL) crossbred Lacaune X Santa Inês ewes were superovulated and naturally bred. Seven days after progesterone withdrawal, females were randomly assigned to one of three distinct cervical relaxation protocols, consisting of i.m. treatment with 37.5 μg d-cloprostenol and different doses of EB: 0.0 mg (0.0EB group; n = 3 NULL and 14 MULT); 0.5 mg (0.5EB group; n = 4 NULL and 12 MULT) or 1.0 mg (1.0EB group, n = 6 NULL and 11 MULT) 16 h before NSER. All ewes received 50 IU of oxytocin 20 min before NSER (D17). Blood samples were collected and ultrasound exams (B-mode and color Doppler) were performed at two timepoints: immediately before d-cloprostenol and EB treatments and prior to NSER. Estrous behavior, corpora lutea count and NSER success outcomes were not affected by EB treatments nor parity (P > 0.05). Embryo recovery rate was greater for ewes in the 0.5EB group and in the NULL ewes (P < 0.05). Ovarian biometrics differed between the two evaluation timepoints in all groups (P < 0.05). Plasma estradiol increased over time, reaching a significant greater level in 1.0EB ewes compared to controls on D17 (P < 0.05), whereas progesterone concentrations decreased over time in all groups (P > 0.05). In conclusion, treatments did not affect NSER success but they did affect luteal function by altering P4 and E2 concentrations.Therefore, the NSER technique can be successfully performed in ewes with or without prior treatment with EB. MenosThis study investigated the effectiveness of different doses of estradiol benzoate (EB) to promote cervical relaxation and their effects on luteal function and outcomes of non-surgical embryo recovery (NSER) in sheep. Multiparous (MULT) and nulliparous (NULL) crossbred Lacaune X Santa Inês ewes were superovulated and naturally bred. Seven days after progesterone withdrawal, females were randomly assigned to one of three distinct cervical relaxation protocols, consisting of i.m. treatment with 37.5 μg d-cloprostenol and different doses of EB: 0.0 mg (0.0EB group; n = 3 NULL and 14 MULT); 0.5 mg (0.5EB group; n = 4 NULL and 12 MULT) or 1.0 mg (1.0EB group, n = 6 NULL and 11 MULT) 16 h before NSER. All ewes received 50 IU of oxytocin 20 min before NSER (D17). Blood samples were collected and ultrasound exams (B-mode and color Doppler) were performed at two timepoints: immediately before d-cloprostenol and EB treatments and prior to NSER. Estrous behavior, corpora lutea count and NSER success outcomes were not affected by EB treatments nor parity (P > 0.05). Embryo recovery rate was greater for ewes in the 0.5EB group and in the NULL ewes (P < 0.05). Ovarian biometrics differed between the two evaluation timepoints in all groups (P < 0.05). Plasma estradiol increased over time, reaching a significant greater level in 1.0EB ewes compared to controls on D17 (P < 0.05), whereas progesterone concentrations decreased over time in all groups (P > 0.05). In conclusion, treatments ... Mostrar Tudo |
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Palavras-Chave: |
Cervical dilation; Dilatação cervical; In vivo embryo production; Non surgical embryo recovery; NSER; Superovulated females. |
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Thesagro: |
Ovelha; Ovino; Progesterona. |
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Thesaurus NAL: |
Animal reproduction; Embryo transfer; Progesterone; Sheep; Superovulation. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02971naa a2200397 a 4500
001 2145373
005 2022-08-11
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.domaniend.2022.106751$2DOI
100 1 $aDIAS, J. H.
245 $aEffects of different doses of estradiol benzoate used in a cervical relaxation protocol on the success of non-surgical embryo recovery and luteal function in superovulated ewes.$h[electronic resource]
260 $c2023
520 $aThis study investigated the effectiveness of different doses of estradiol benzoate (EB) to promote cervical relaxation and their effects on luteal function and outcomes of non-surgical embryo recovery (NSER) in sheep. Multiparous (MULT) and nulliparous (NULL) crossbred Lacaune X Santa Inês ewes were superovulated and naturally bred. Seven days after progesterone withdrawal, females were randomly assigned to one of three distinct cervical relaxation protocols, consisting of i.m. treatment with 37.5 μg d-cloprostenol and different doses of EB: 0.0 mg (0.0EB group; n = 3 NULL and 14 MULT); 0.5 mg (0.5EB group; n = 4 NULL and 12 MULT) or 1.0 mg (1.0EB group, n = 6 NULL and 11 MULT) 16 h before NSER. All ewes received 50 IU of oxytocin 20 min before NSER (D17). Blood samples were collected and ultrasound exams (B-mode and color Doppler) were performed at two timepoints: immediately before d-cloprostenol and EB treatments and prior to NSER. Estrous behavior, corpora lutea count and NSER success outcomes were not affected by EB treatments nor parity (P > 0.05). Embryo recovery rate was greater for ewes in the 0.5EB group and in the NULL ewes (P < 0.05). Ovarian biometrics differed between the two evaluation timepoints in all groups (P < 0.05). Plasma estradiol increased over time, reaching a significant greater level in 1.0EB ewes compared to controls on D17 (P < 0.05), whereas progesterone concentrations decreased over time in all groups (P > 0.05). In conclusion, treatments did not affect NSER success but they did affect luteal function by altering P4 and E2 concentrations.Therefore, the NSER technique can be successfully performed in ewes with or without prior treatment with EB.
650 $aAnimal reproduction
650 $aEmbryo transfer
650 $aProgesterone
650 $aSheep
650 $aSuperovulation
650 $aOvelha
650 $aOvino
650 $aProgesterona
653 $aCervical dilation
653 $aDilatação cervical
653 $aIn vivo embryo production
653 $aNon surgical embryo recovery
653 $aNSER
653 $aSuperovulated females
700 1 $aGONCALVES, J. D.
700 1 $aARRAIS, A. M.
700 1 $aSOUZA-FABJAN, J. M. G.
700 1 $aBASTOS R.
700 1 $aBATISTA, R. I. T. P.
700 1 $aSIQUEIRA, L. G. B.
700 1 $aOLIVEIRA, M. E. F.
700 1 $aFONSECA, J. F. da
773 $tDomestic Animal Endocrinology$gv. 82, 106751, 2023.
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