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| Registros recuperados : 11 | |
| 1. |  | LEAL, G. R.; GRACIOSA, M. A. G.; PASOLINI, R.; MONTEIRO, C. A. S.; CAMARGO, A. J. Dos R.; SERAPIÃO, R. V.; OLIVEIRA, C. S. Adaptação do sistema SPOM melhora a taxa de produção in vitro de embriões bovinos. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 30., 2016, Foz do Iguaçu. Anais... Foz do Iguaçu: Sociedade Brasileira de Tecnologia de Embriões, 2016.| Biblioteca(s): Embrapa Gado de Leite. |
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| 2. | | ROSA, P. M. S.; MONTEIRO, C. A. S.; LEAL, G. R.; CAMARGO, A. J. R.; SERAPIÃO, R. V.; LIMA, M. R.; GARCIA, J. M.; OLIVEIRA, C. S. Association of two epigenetic modulators on the initial development of female bovine embryos. Animal Reproduction, v. 15, n. 3, p. 484, 2018. Edição dos proceedings do 32º Annual Meeting of the Brazilian Embryo Technology Society, Florianópolis, 2018.| Biblioteca(s): Embrapa Gado de Leite. |
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| 3. | | OLIVEIRA, C. S.; BARROS, B. A. F. de; MONTEIRO, C. A. S.; ROSA, P. M. S.; LEAL, G. R.; SERAPIÃO, R. V.; CAMARGO, L. S. de A. Individual assessment of bovine embryo development using a homemade chamber reveals kinetic patterns of success and failure to reach blastocyst stage. Systems Biology in Reproductive Medicine, v. 65, n. 4, p. 301-311, 2019.| Biblioteca(s): Embrapa Gado de Leite. |
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| 4. | | MONTEIRO, C. A. S.; BARROS, B. A. F. De; ROSA, P. A. Da S.; LEAL, G. R.; CAMARGO, A. J. Dos R.; SERAPIÃO, R. V.; OLIVEIRA, C. S. Taxa de apoptose após vitrificação/ reaquecimento de embriões Gir produzidos in vitro. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 30., 2016, Foz do Iguaçu. Anais... Foz do Iguaçu: Sociedade Brasileira de Tecnologia de Embriões, 2016. 1| Biblioteca(s): Embrapa Gado de Leite. |
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| 5. | | OLIVEIRA, C. S.; ROSA, P. M. da S.; ALVES, B. R. C.; MONTEIRO, C. A. S.; LEAL, G. R.; GUEDES, P. H. E.; CAMARGO, A. J. dos R.; SARAIVA, N. Z. Luteinizing hormone secretion, ovulatory capacity, and oocyte quality in peripubertal Gir heifers. Zygote, v. 31, n. 4, p. 342-349, 2023.| Biblioteca(s): Embrapa Gado de Leite. |
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| 6. | | LEAL, G. R.; OLIVEIRA, C. S.; MONTEIRO, C. A. S.; SARAIVA, H. F. R. A.; ROSA, P. M. S.; CAMARGO, A. J. R.; RODRIGUES, A. L. R.; VASCONCELOS, C. O. P.; NOGUEIRA, L. A. G.; SERAPIÃO, R. V. Effect of in vitro spom maturation system use on bovine embryos lipid score Animal Reproduction, v. 12, n. 3, 2015. Edição dos proceedings do 29º Annual Meeting of the Brazilian Embryo Technology Society, 2015, Gramado.| Biblioteca(s): Embrapa Gado de Leite. |
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| 7. | | MONTEIRO, C. A. S.; LEAL, G. R.; SARAIVA, H. F. R. A.; CAMARGO, A. J. R.; RODRIGUES, A. L. R.; SERAPIÃO, R. V.; NOGUEIRA, L. A. G.; CAMARGO, L. S. de A.; GARCIA, J. M.; OLIVEIRA, C. S. Effect of cAMP modulators during oocyte in vitro maturation on nuclear maturation and cytoskeleton integrity of vitrified bovine oocytes. In: ANNUAM MEETING OF THE BRAZILIAN EMBRYO TECHNOLOGY SOCIETY, 29., 2015, Gramado. Abstracts... Gramado: SBTE, 2015.| Biblioteca(s): Embrapa Gado de Leite. |
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| 8. | | SARAIVA, H. F. R. A.; LEAL, G. R.; MONTEIRO, C. A. S.; OLIVEIRA, C. S.; ROSA, P. M. S.; CAMARGO, A. J. R.; SERAPIÃO, R. V.; BRANDÃO, F. Z. Effect of camp modulators on in vitro pre maturation in production rate and lipid content of crossbred bovine embryos Animal Reproduction, v. 12, n. 3, 2015. Edição dos proceedings do 29º Annual Meeting of the Brazilian Embryo Technology Society, 2015, Gramado.| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | LEAL, G. R.; MONTEIRO, C. A. S.; SARAIVA, H. P. F. R. A.; CAMARGO, A. J. R.; ROSA, P. M. S.; RODRIGUES, A. L. R.; VASCONCELOS, C. O. P.; NOGUEIRA, L. A. G.; OLIVEIRA, C. S.; SERAPIÃO, R. V. Effect of cyclic adenosine monophosphate modulators during oocyte in vitro maturation on bovine embryos (Gyr x Holstein) quality In: ANNUAL CONFERENCE OF THE INTERNATIONAL EMBRYO TRANSFER SOCIETY, 2016, Louisville. Reproduction, fertility and development: proceedings. Louisville: [s.n.], 2016.| Biblioteca(s): Embrapa Gado de Leite. |
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| 10. | | SARAIVA, H. F. R. A.; MONTEIRO, C. A. S.; LEAL, G. R.; CAMARGO, A. J. R.; RODRIGUES, A. L. R.; VASCONCELOS, C. O. P.; SERAPIÃO, R. V.; OLIVEIRA, C. S. Influence of breed composition of crossbred cows between Gir and Holstein breeds in performance donors. Animal Reproduction, v. 11, n. 3, p. 423, 2014. Edição dos proceedings do 28º Annual Meeting of the Brazilian Embryo Technology Society, 2014, Natal.| Biblioteca(s): Embrapa Gado de Leite. |
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| 11. | | LEAL, G. R.; GRACIOSA, M. A. G.; MONTEIRO, C. A. S.; PASOLINI, R.; CAMARGO, A. J. dos R.; OLIVEIRA, C. S.; VASCONCELOS, C. O. de P.; NOGUEIRA, L. A. G.; FERREIRA, A. M. R.; SERAPIAO, R. V. The SPOM-adapted IVM system improves in vitro production of bovine embryos. Theriogenology, v. 158, p. 277-282, 2020.| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 11 | |
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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 Gado de Leite. |
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Data corrente: |
03/06/2023 |
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Data da última atualização: |
22/08/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
OLIVEIRA, C. S.; ROSA, P. M. da S.; ALVES, B. R. C.; MONTEIRO, C. A. S.; LEAL, G. R.; GUEDES, P. H. E.; CAMARGO, A. J. dos R.; SARAIVA, N. Z. |
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Afiliação: |
CLARA SLADE OLIVEIRA, CNPGL; PAOLA MARIA DA SILVA ROSA; BRUNA RIOS COELHO ALVES; CLARA ANA SANTOS MONTEIRO; GABRIELA RAMOS LEAL; PEDRO HENRIQUE EVANGELISTA GUEDES; AGOSTINHO JORGE DOS REIS CAMARGO; NAIARA ZOCCAL SARAIVA, CNPGL. |
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Título: |
Luteinizing hormone secretion, ovulatory capacity, and oocyte quality in peripubertal Gir heifers. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Zygote, v. 31, n. 4, p. 342-349, 2023. |
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DOI: |
https://doi.org/10.1017/S0967199423000230 |
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Idioma: |
Inglês |
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Conteúdo: |
Induction of puberty in cattle breeds that attain puberty in later stages, such as Gir, allows the earlier beginning of reproductive life and it might increase oocyte quality. Here, the ovulatory capacity of prepuberal Gir heifers was studied and its relationship to follicular growth, luteinizing hormone (LH) secretion and oocyte quality was evaluated. Peripubertal Gir heifers were treated with a progesterone-based protocol and according to ovulatory response were separated into groups: not-ovulated (N-OV) and ovulated (OV). Serial blood samples were taken 24 h after estradiol treatment on day 12 to evaluate LH secretion. Cumulus-oocyte complexes (COCs) were collected using ovum pick-up and assessed for brilliant cresyl blue (BCB) staining rate, IVF-grade oocytes rate, and mean oocyte diameter, in comparison with cow oocytes. Gene expression of developmental competence markers (ZAR1, MATER, and IGF2R) was also analyzed. The largest follicle diameters were similar between N-OV and OV groups on the day of estradiol treatment (d12) and the next day and decreased (P = 0.04) in the N-OV group thereafter. LH pulse secretion was different between groups (N-OV = 3.61 +/- 0.34 vs OV = 2.83 +/- 0.21 ng/ ml; P = 0.04). COC assessment showed that the number of recovered oocytes, BCB+ rate, IVF-grade oocytes and oocyte size was similar (P > 0.05) among groups, resembling adult cow patterns. ZAR1, MATER and IGF2R gene expression in oocytes were also similar (P > 0.05) in N-OV and OV groups. In conclusion, our results demonstrate a lower LH secretion profile in peripubertal Gir heifers prone to ovulate after induction protocol, and that oocyte quality is not affected on a short-term basis by ovulation itself. MenosInduction of puberty in cattle breeds that attain puberty in later stages, such as Gir, allows the earlier beginning of reproductive life and it might increase oocyte quality. Here, the ovulatory capacity of prepuberal Gir heifers was studied and its relationship to follicular growth, luteinizing hormone (LH) secretion and oocyte quality was evaluated. Peripubertal Gir heifers were treated with a progesterone-based protocol and according to ovulatory response were separated into groups: not-ovulated (N-OV) and ovulated (OV). Serial blood samples were taken 24 h after estradiol treatment on day 12 to evaluate LH secretion. Cumulus-oocyte complexes (COCs) were collected using ovum pick-up and assessed for brilliant cresyl blue (BCB) staining rate, IVF-grade oocytes rate, and mean oocyte diameter, in comparison with cow oocytes. Gene expression of developmental competence markers (ZAR1, MATER, and IGF2R) was also analyzed. The largest follicle diameters were similar between N-OV and OV groups on the day of estradiol treatment (d12) and the next day and decreased (P = 0.04) in the N-OV group thereafter. LH pulse secretion was different between groups (N-OV = 3.61 +/- 0.34 vs OV = 2.83 +/- 0.21 ng/ ml; P = 0.04). COC assessment showed that the number of recovered oocytes, BCB+ rate, IVF-grade oocytes and oocyte size was similar (P > 0.05) among groups, resembling adult cow patterns. ZAR1, MATER and IGF2R gene expression in oocytes were also similar (P > 0.05) in N-OV and OV group... Mostrar Tudo |
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Palavras-Chave: |
Competência oocitária; Puberdade. |
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Thesagro: |
Bovino. |
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Categoria do assunto: |
-- |
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Marc: |
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024 7 $ahttps://doi.org/10.1017/S0967199423000230$2DOI
100 1 $aOLIVEIRA, C. S.
245 $aLuteinizing hormone secretion, ovulatory capacity, and oocyte quality in peripubertal Gir heifers.$h[electronic resource]
260 $c2023
520 $aInduction of puberty in cattle breeds that attain puberty in later stages, such as Gir, allows the earlier beginning of reproductive life and it might increase oocyte quality. Here, the ovulatory capacity of prepuberal Gir heifers was studied and its relationship to follicular growth, luteinizing hormone (LH) secretion and oocyte quality was evaluated. Peripubertal Gir heifers were treated with a progesterone-based protocol and according to ovulatory response were separated into groups: not-ovulated (N-OV) and ovulated (OV). Serial blood samples were taken 24 h after estradiol treatment on day 12 to evaluate LH secretion. Cumulus-oocyte complexes (COCs) were collected using ovum pick-up and assessed for brilliant cresyl blue (BCB) staining rate, IVF-grade oocytes rate, and mean oocyte diameter, in comparison with cow oocytes. Gene expression of developmental competence markers (ZAR1, MATER, and IGF2R) was also analyzed. The largest follicle diameters were similar between N-OV and OV groups on the day of estradiol treatment (d12) and the next day and decreased (P = 0.04) in the N-OV group thereafter. LH pulse secretion was different between groups (N-OV = 3.61 +/- 0.34 vs OV = 2.83 +/- 0.21 ng/ ml; P = 0.04). COC assessment showed that the number of recovered oocytes, BCB+ rate, IVF-grade oocytes and oocyte size was similar (P > 0.05) among groups, resembling adult cow patterns. ZAR1, MATER and IGF2R gene expression in oocytes were also similar (P > 0.05) in N-OV and OV groups. In conclusion, our results demonstrate a lower LH secretion profile in peripubertal Gir heifers prone to ovulate after induction protocol, and that oocyte quality is not affected on a short-term basis by ovulation itself.
650 $aBovino
653 $aCompetência oocitária
653 $aPuberdade
700 1 $aROSA, P. M. da S.
700 1 $aALVES, B. R. C.
700 1 $aMONTEIRO, C. A. S.
700 1 $aLEAL, G. R.
700 1 $aGUEDES, P. H. E.
700 1 $aCAMARGO, A. J. dos R.
700 1 $aSARAIVA, N. Z.
773 $tZygote$gv. 31, n. 4, p. 342-349, 2023.
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