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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
22/08/2017 |
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Data da última atualização: |
22/08/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA-FABJAN, J. M. G.; ROSA, R. M. da; BALARO, M. F. A.; PINTO, P. H. N.; SANTOS, G. B. dos; ARASHIRO, E. K. N.; FONSECA, J. F. da; UNGERFELD, R.; BRANDÃO, F. Z. |
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Afiliação: |
Joanna Maria Gonçalves Souza-Fabjan, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; Universidade do Grande Rio - Duque de Caxias, RJ, Brazil; Rômulo Mendonça da Rosa, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; Mário Felipe Alvarez Balaro, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; Pedro Henrique Nicolau Pinto, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; Gustavo Bervian dos Santos, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; Eduardo Kenji Nunes Arashiro, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; JEFERSON FERREIRA DA FONSECA, CNPC; Rodolfo Ungerfeld, Universidad de la República - Montevideo, Uruguay; Felipe Zandonadi Brandão, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil. |
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Título: |
Effect of different hormonal combinations on follicular wave emergence and superovulatory response in sheep. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Theriogenology, v. 103, p. 24-29, Nov. 2017. |
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DOI: |
https://doi.org/10.1016/j.theriogenology.2017.07.036 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The aim of the present study was to compare hormonal treatments to induce and synchronize follicular wave emergence to improve the results of superovulatory (SOV) treatments in ewes. In Experiment 1 (n = 66), ewes were treated with a progesterone intravaginal implant plus a PGF2? analogue (group GP4), or with the same treatment plus estradiol benzoate (GP4+EB), a GnRH agonist (GP4+GnRH), or both, estradiol benzoate and a GnRH agonist (GP4+EB+GnRH) in a 2 × 2 factorial arrangement. Follicular wave emergence was determined by ultrasound. Follicular wave did not emerge during the studied period in 10 females (one from GP4, six from GP4+EB and three from GP4+EB+GnRH). Follicular emergence was less synchronized (P = 0.007) when estradiol was administered (GP4+EB: 103.6 ± 22.0 h), without any interaction with GnRH treatment (GP4+EB+GnRH: 80.1 ± 21.4 h, GP4+GnRH: 52.5 ± 8.7 h, GP4: 56.6 ± 10.4 h). Estradiol administration delayed the moment of follicular emergence (P = 0.007) and the follicular wave emergence moment in which follicular dominance was achieved (P = 0.009), without interactions between estradiol and GnRH in the moment of follicular wave emergence or dominance. In Experiment 2 (n = 22), two SOV protocols were compared: the best treatment of Experiment 1 (GP4) was used to synchronize follicular wave emergence, initiating the SOV treatment 2.5 days later; in the control treatment, SOV treatment started 80 h after a short-term protocol to synchronize ovulation (Gcontrol). The number of corpora lutea (CL) and the evaluation of the collected embryos were performed six days after estrus. Blood samples were collected daily for plasma progesterone determination. Although the number of CL was similar in Gcontrol (7.1 ± 1.0) and GP4 (6.9 ± 5.1), the number of structures and viable embryos recovered were greater in Gcontrol (P < 0.05). The occurrence of luteal premature regression was significantly greater in GP4 (60%) than in Gcontrol (8.3%). The use of GnRH agonist alone did not improve synchronization of follicular wave emergence. When EB was used (alone or associated) follicular wave emergence was less synchronized. The SOV protocol proposed had a similar ovarian response; however, it resulted in less transferable embryos. MenosAbstract: The aim of the present study was to compare hormonal treatments to induce and synchronize follicular wave emergence to improve the results of superovulatory (SOV) treatments in ewes. In Experiment 1 (n = 66), ewes were treated with a progesterone intravaginal implant plus a PGF2? analogue (group GP4), or with the same treatment plus estradiol benzoate (GP4+EB), a GnRH agonist (GP4+GnRH), or both, estradiol benzoate and a GnRH agonist (GP4+EB+GnRH) in a 2 × 2 factorial arrangement. Follicular wave emergence was determined by ultrasound. Follicular wave did not emerge during the studied period in 10 females (one from GP4, six from GP4+EB and three from GP4+EB+GnRH). Follicular emergence was less synchronized (P = 0.007) when estradiol was administered (GP4+EB: 103.6 ± 22.0 h), without any interaction with GnRH treatment (GP4+EB+GnRH: 80.1 ± 21.4 h, GP4+GnRH: 52.5 ± 8.7 h, GP4: 56.6 ± 10.4 h). Estradiol administration delayed the moment of follicular emergence (P = 0.007) and the follicular wave emergence moment in which follicular dominance was achieved (P = 0.009), without interactions between estradiol and GnRH in the moment of follicular wave emergence or dominance. In Experiment 2 (n = 22), two SOV protocols were compared: the best treatment of Experiment 1 (GP4) was used to synchronize follicular wave emergence, initiating the SOV treatment 2.5 days later; in the control treatment, SOV treatment started 80 h after a short-term protocol to synchronize ovulation (... Mostrar Tudo |
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Palavras-Chave: |
GnRH; MOET; Oestrogens. |
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Thesagro: |
Estradiol; Estrógeno; Gonadotrofina; Ovelha; Ovino; Reprodução animal; Superovulação. |
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Thesaurus Nal: |
Benzoates; Embryo transfer; Ewes; Reproduction; Sheep; Superovulation. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03449naa a2200421 a 4500
001 2074263
005 2017-08-22
008 2017 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.theriogenology.2017.07.036$2DOI
100 1 $aSOUZA-FABJAN, J. M. G.
245 $aEffect of different hormonal combinations on follicular wave emergence and superovulatory response in sheep.$h[electronic resource]
260 $c2017
520 $aAbstract: The aim of the present study was to compare hormonal treatments to induce and synchronize follicular wave emergence to improve the results of superovulatory (SOV) treatments in ewes. In Experiment 1 (n = 66), ewes were treated with a progesterone intravaginal implant plus a PGF2? analogue (group GP4), or with the same treatment plus estradiol benzoate (GP4+EB), a GnRH agonist (GP4+GnRH), or both, estradiol benzoate and a GnRH agonist (GP4+EB+GnRH) in a 2 × 2 factorial arrangement. Follicular wave emergence was determined by ultrasound. Follicular wave did not emerge during the studied period in 10 females (one from GP4, six from GP4+EB and three from GP4+EB+GnRH). Follicular emergence was less synchronized (P = 0.007) when estradiol was administered (GP4+EB: 103.6 ± 22.0 h), without any interaction with GnRH treatment (GP4+EB+GnRH: 80.1 ± 21.4 h, GP4+GnRH: 52.5 ± 8.7 h, GP4: 56.6 ± 10.4 h). Estradiol administration delayed the moment of follicular emergence (P = 0.007) and the follicular wave emergence moment in which follicular dominance was achieved (P = 0.009), without interactions between estradiol and GnRH in the moment of follicular wave emergence or dominance. In Experiment 2 (n = 22), two SOV protocols were compared: the best treatment of Experiment 1 (GP4) was used to synchronize follicular wave emergence, initiating the SOV treatment 2.5 days later; in the control treatment, SOV treatment started 80 h after a short-term protocol to synchronize ovulation (Gcontrol). The number of corpora lutea (CL) and the evaluation of the collected embryos were performed six days after estrus. Blood samples were collected daily for plasma progesterone determination. Although the number of CL was similar in Gcontrol (7.1 ± 1.0) and GP4 (6.9 ± 5.1), the number of structures and viable embryos recovered were greater in Gcontrol (P < 0.05). The occurrence of luteal premature regression was significantly greater in GP4 (60%) than in Gcontrol (8.3%). The use of GnRH agonist alone did not improve synchronization of follicular wave emergence. When EB was used (alone or associated) follicular wave emergence was less synchronized. The SOV protocol proposed had a similar ovarian response; however, it resulted in less transferable embryos.
650 $aBenzoates
650 $aEmbryo transfer
650 $aEwes
650 $aReproduction
650 $aSheep
650 $aSuperovulation
650 $aEstradiol
650 $aEstrógeno
650 $aGonadotrofina
650 $aOvelha
650 $aOvino
650 $aReprodução animal
650 $aSuperovulação
653 $aGnRH
653 $aMOET
653 $aOestrogens
700 1 $aROSA, R. M. da
700 1 $aBALARO, M. F. A.
700 1 $aPINTO, P. H. N.
700 1 $aSANTOS, G. B. dos
700 1 $aARASHIRO, E. K. N.
700 1 $aFONSECA, J. F. da
700 1 $aUNGERFELD, R.
700 1 $aBRANDÃO, F. Z.
773 $tTheriogenology$gv. 103, p. 24-29, Nov. 2017.
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Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 22 | |
| 5. |  | GOLINELLI, D. C.; MARCONCINI, L. V.; COLNAGO, L. A. Classificação rápida de sementes de amendoim relativa ao teor de ácido oléico por TD-NMR In: CONGRESSO DA REDE BRASILEIRA DE TECNOLOGIA DE BIODIESEL, 5.; CONGRESSO BRASILEIRO DE PLANTAS OLEAGINOSAS, ÓLEOS, GORDURAS E BIODIESEL, 8., 2012, Salvador. Biodiesel, inovação e desenvolvimento regional: anais, trabalhos científicos. Lavras: UFLA, 2012. p. 1295-1296. Editores: Pedro Castro Neto, Antônio Carlos Fraga, Rafael Silva Menezes e Gustavo de Lima Ramos.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 6. | | BARBOSA, L. L.; MARCONCINI, L. V.; COLNAGO, L. A. Relaxometric titration: a new analytical aproach to measure solubility constant. In: NUCLEAR MAGNETIC RESONANCE USERS MEETING, 12., IBEROAMERICAN NMR MEETING, 3., 2009, Angra dos Reis, RJ. Extended abstracts book… [Rio de Janeiro]: AUREMN, 2009. p. 145-146. anais.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Instrumentação. |
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| 11. | | COLNAGO, L. A.; ANDRADE, F. D.; MARCONCINI, L. V.; MARCHI NETTO, A.; MORETTI, T. B. Desenvolvimento de técnicas de RMN ultra-rápidas para análise de sementes oleaginosas. In: CONGRESSO DA REDE BRASILEIRA DE TECNOLOGIA DE BIODIESEL, 3., 2009, Brasília, DF. Anais... Brasília, DF: MCT, 2009. p. 173-174.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Instrumentação. |
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| 13. | | CABEÇA, L. F.; MARCONCINI, L. V.; MAMBRINI, G. P.; AZEREDO, R. B. V.; COLNAGO, L. A. Monitoring the transesterification reaction used in biodiesel production, with a low cost unilateral nuclear magnetic resonance sensor. Energy & fuels, Washington, v. 25, n. 6, p. 2696-2701, 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
| Biblioteca(s): Embrapa Instrumentação. |
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| 15. | | GOLINELLI, D. C.; SANTOS, M. da S.; MARCONCINI, L. V.; COLNAGO, L. A. Uso da RMN-DT no desenvolvimento e validação de método para detecção de adulteração em azeites de oliva comerciais lacrados. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 5., 2013, São Carlos, SP. Anais... São Carlos, SP: Embrapa Pecuária Sudeste: Embrapa Instrumentação , 2013. p. 47 Editado por Ana Rita de Araújo Nogueira, Simone Cristina Méo Niciura. (Embrapa Pecuária Sudeste. Documentos, 110).| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 16. | | GOLINELLI, D. C.; SANTOS, M. da S.; MARCONCINI, L. V.; COLNAGO, L. A. Uso da RMN-DT para detecção de adulteração em azeites de oliva comerciais lacrados. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 4., 2012, São Carlos, SP. Anais... São Carlos: Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2012. p. 91. Editores técnicos: João de Mendonça Naime, Lucimara Aparecida Forato, Maria Alice Martins, Ladislau Marcelino Rabello, Rubens Bernardes Filho. (Embrapa Instrumentação. Documentos, 56)| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 17. | | LIMA, J. P. de F.; MARCONCINI, L. V.; VENANCIO, T.; GODOY, I. J. de; COLNAGO, L. A. Avaliação do teor de óleo total e de ácido oleico em sementes de amendoim por RMN de baixo campo. In: JORNADA BRASILEIRA DE RESSONÂNCIA MAGNÉTICA, 11., 2010, Curitiba, PR. Mini-Cursos em RMN. Anais... [Rio de Janeiro]: AUREMN, 2010. p. 85-86.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 18. | | COBRA, P. F.; GOMES, B. F.; MITRE, C. I. N.; BARBOSA, L. L.; MARCONCINI, L. V.; COLNAGO, L. A. Measuring the solubility product constant of paramagnetic cations using time-domain nuclear magnetic resonance relaxometry. Microchemical Journal, [S. l.], v. 121, p. 14-17, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Instrumentação. |
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| 19. | | RIBEIRO, F. Z.; MARCONCINI, L. V.; TOLEDO, I. B. de; AZEREDO, R. B. de V.; BARBOSA, L. L.; COLNAGO, L. A. Nuclear magnetic resonance water relaxation time changes in bananas during ripening: a new mechanism. Journal of the science of food and agriculture, London, v. 90, p. 2052-2057, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 22 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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