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| Registros recuperados : 13 | |
| 2. |  | RABELO, N. C.; GHETTI, A. M.; CAMARGO, L. S. de A.; VERNEQUE, R. da S.; VIANA, J. H. M. Uso do cultivo overnight na avaliação do potencial de desenvolvimento embrionário e como alternativa na logística da transferência a fresco de embriões F1 Holandês/Gir. In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE, 5., 2010, Juiz de Fora, MG. Anais... Juiz de Fora: Embrapa Gado de Leite, 2010. 1 CD-ROM. (Embrapa Gado de Leite. Documentos, 141.). p. 33-36.| Biblioteca(s): Embrapa Gado de Leite. |
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| 3. | | GHETTI, A. M.; BRANDAO, F. Z.; SIQUEIRA, L. G. B.; AREAS, V. S.; ARASHIRO, E. K. N.; FERNANDES, C. A. C.; PALHAO, M. P.; VIANA, J. H. M. Comparação dos metodos e subjetivo de avaliação do padrão vascular do foliculo pre-ovulatorio utilizando-se Doppler colorido. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 26., 2012, Foz do Iguaçu. Anais. Belo Horizonte: CBRA, 2012. p. 478.| Biblioteca(s): Embrapa Gado de Leite. |
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| 4. | | SIQUEIRA, L. G. B.; AREAS, V. S.; GHETTI, A. M.; FONSECA, J. F. da; PALHAO, M. P.; FERNANDES, C. A. C.; VIANA, J. H. M. Color Doppler flow imaging for the early detection of nonpregnant cattle at 20 days after timed artificial insemination. Journal of Dairy Science, v. 96, n. 10, p. 6461-6472, 2013.| Biblioteca(s): Embrapa Caprinos e Ovinos; Embrapa Gado de Leite. |
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| 6. | | GHETTI, A. M.; ZANDONADI, F.; SIQUEIRA, L. G. B.; CAMARGO, L. S. de A.; ARASHIRO, E. K. N.; PAIM, C. A. S.; VIANA, J. H. M. Aspiração de folículos orientada por ultrasonografia não reduz o fluxo sanguíneo da parede folicular - resultados preliminares. Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, 25., 2011, Cumbuco. Resumos... p. 390| Biblioteca(s): Embrapa Gado de Leite. |
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| 7. | | GHETTI, A. M.; SOUZA, E. D. de; CAMPOS JÚNIOR, P. H. A.; FREITAS, C. de; CAMARGO, L. S. de A.; VIANA, J. H. M.; VERNEQUE, R. da S. Avaliação de cultivo overnight como estratégia para a coleta e transferência a fresco de embriões F1 Holandês/Gir em rebanhos diferentes. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 46., 2009, Maringá. Inovação científica e tecnológica em zootecnia: anais dos resumos. Maringa: SBZ: UEM, 2009.| Biblioteca(s): Embrapa Gado de Leite. |
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| 8. | | AREAS, V. S.; SIQUEIRA, L. G. B.; GHETTI, A. M.; SOUZA, E. D.; ARASHIRO, E. K. N.; CAMARGO, L. S. de A.; VIANA, J. H. M. Avaliação da vascularização do corpo lúteo por Doppler colorido no período de reconhecimento materno da gestação: REsultados preliminares. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 26., 2012, Foz do Iguaçu. Anais. Belo Horizonte: CBRA, 2012. p. 491| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | GHETTI, A. M.; SOUZA, E. D. de; CAMPOS JÚNIOR, P. H. A.; FREITAS, C. de; CAMARGO, L. S. de A.; VIANA, J. H. M.; VERNEQUE, R. da S. Avaliação do potencial de produção de embriões F1 in vivo utilizando-se doadoras das raças Gir ou Holandesa. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 46., 2009, Maringá. Inovação científica e tecnológica em zootecnia: anais dos resumos. Maringa: SBZ: UEM, 2009.| Biblioteca(s): Embrapa Gado de Leite. |
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| 10. | | SIQUEIRA, L. G. B.; ARASHIRO, E. K.; GHETTI, A. M.; SOUZA, E. D.; FERES, L. F.; PFEIFER, L. F. M.; FONSECA, J. F. da; VIANA, J. H. M. Vascular and morphological features of the corpus luteum 12 to 20 days after timed artificial insemination in dairy cattle. Journal of Dairy Science, v. 102, n. 6, p. 5612-5626, 2019.| Biblioteca(s): Embrapa Gado de Leite; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Rondônia. |
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| 11. | | SIQUEIRA, L. G. B.; GHETTI, A. M.; AREAS, V. S.; SOUZA, E. D.; ARASHIRO, E. K. N.; CAMARGO, L. S. de A.; FONSECA, J. F. da; VIANA, J. H. M. Predição de não-gestação 20 dias após a IATF pela avaliação do corpo lúteo com Doppler colorido. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 26., 2012, Foz do Iguaçu. Resumos... Foz do Iguaçu: SBTE, 2012. p. 490.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 12. | | SIQUEIRA, L. G. B.; GHETTI, A. M.; AREAS, V. S.; SOUZA, E. D.; ARASHIRO, E. K. N.; CAMARGO, L. S. de A.; FONSECA, J. F. da; VIANA, J. H. M. Predição de não-gestação 20 dias após a IATF pela avaliação do corpo lúteo com Doppler colorido. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 26., 2012, Foz do Iguaçu. Resumos... Foz do Iguaçu: SBTE, 2012. p. 490| Biblioteca(s): Embrapa Gado de Leite. |
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| 13. | | VIANA, J. H. M.; ARASHIRO, E. K. N.; SIQUEIRA, L. G. B.; GHETTI, A. M.; AREAS, V. S.; GUIMARÃES, C. R. B.; PALHAO, M. P.; CAMARGO, L. S. de A.; FERNANDES, C. A. C. Doppler ultrasonography as a tool for ovarian management. Animal Reproduction, v. 10, n. 3, p. 215-222, 2013.| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 13 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
06/02/2017 |
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Data da última atualização: |
30/01/2023 |
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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: |
GHETTI, A. M.; SIQUEIRA, L. G. B.; ARASHIRO, E. K. N.; PALHÃO, M. P.; BRANDÃO, F. Z.; VIANA, J. H. M. |
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Afiliação: |
Alberto Mansur Ghetti, UFF; LUIZ GUSTAVO BRUNO SIQUEIRA, CNPGL; Eduardo Kenji Nunes Arashiro, UFMG; Miller Pereira Palhao, Universidade Jose do Rosario Vellano, Alfenas, MG; Felipe Zandonadi Brandao, UFF; JOAO HENRIQUE MOREIRA VIANA, Cenargen. |
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Título: |
Characterization of blood flow and the effects of exogenous estradiol benzoate on residual follicles formed after ultrasound-guided transvaginal follicle aspiration in cattle. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of Animal Science and Biotechnology, v. 7, article 59, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Background: Removal of the follicular content by ultrasound-guided transvaginal follicle aspiration (TVFA) may fail to induce immediate atresia and loss of function, resulting in the occurrence of residual follicles (RF). The aims of this study were to characterize the blood flow in RF and to determine the effects of the treatment with estradiol benzoate on RF fate. Lactating, cyclic Holstein-Gir crossbred cows were used. In Experiment 1, follicular wave emergence (D0) was synchronized in cows (n = 10) and follicular growth was then monitored by transrectal ultrasonography from D0 to D8, followed by TVFA of the largest follicle present on the ovaries 24 h later. Color Doppler ultrasound imaging was used to examine blood flow on the follicular wall, which was recorded immediately before and every 12 h after TVFA, up to 72 h. In experiment 2, cows (n = 22) were randomly allocated to receive either 2 mL of saline i.m. (Control group, n = 11) or 2 mL estradiol benzoate i.m. (EB group, n = 11) immediately after TVFA. Ovaries were scanned every 12 h to confirm the presence and to measure the diameter of RF. The contents of the RF, if present, were collected 72 h after the first TVFA, using the same aspiration procedures. Follicular fluid from original follicles and RF were stored at -20 °C until hormonal assays. Results: In Experiment 1, there was no reduction (P > 0.05) of blood flow in the remaining follicle walls after TVFA and maximum blood flow values were observed at 49.5 ± 19.7 h post-TVFA. In Experiment 2, formation of RF after TVFA was proportionally similar between Controls (5/9) and EB (5/10) cows. Also, RF diameter did not differ between groups (P > 0.05). Nonetheless, the content of RF from cows in the EB group had lower (P = 0.0004) estradiol (E2) concentration and lower (P = 0.0005) E2:P4 ratio compared with Controls. Conclusions: In conclusion, 1) the persistence of vascularization in the remaining follicle wall may contribute to the formation of RF after follicle aspiration, and 2) the treatment with estradiol benzoate does not prevent formation of RF, but does reduce their estradiol production. MenosAbstract Background: Removal of the follicular content by ultrasound-guided transvaginal follicle aspiration (TVFA) may fail to induce immediate atresia and loss of function, resulting in the occurrence of residual follicles (RF). The aims of this study were to characterize the blood flow in RF and to determine the effects of the treatment with estradiol benzoate on RF fate. Lactating, cyclic Holstein-Gir crossbred cows were used. In Experiment 1, follicular wave emergence (D0) was synchronized in cows (n = 10) and follicular growth was then monitored by transrectal ultrasonography from D0 to D8, followed by TVFA of the largest follicle present on the ovaries 24 h later. Color Doppler ultrasound imaging was used to examine blood flow on the follicular wall, which was recorded immediately before and every 12 h after TVFA, up to 72 h. In experiment 2, cows (n = 22) were randomly allocated to receive either 2 mL of saline i.m. (Control group, n = 11) or 2 mL estradiol benzoate i.m. (EB group, n = 11) immediately after TVFA. Ovaries were scanned every 12 h to confirm the presence and to measure the diameter of RF. The contents of the RF, if present, were collected 72 h after the first TVFA, using the same aspiration procedures. Follicular fluid from original follicles and RF were stored at -20 °C until hormonal assays. Results: In Experiment 1, there was no reduction (P > 0.05) of blood flow in the remaining follicle walls after TVFA and maximum blood flow values were observed a... Mostrar Tudo |
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Palavras-Chave: |
Doppler; Ovary; Ovum pick-up; Vascularization. |
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Thesaurus NAL: |
steroidogenesis. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/154765/1/Cnpgl-2016-JAnSciBiotech-Characterization.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/180781/1/s40104-016-0117-5.pdf
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Marc: |
LEADER 02952naa a2200241 a 4500
001 2062764
005 2023-01-30
008 2016 bl uuuu u00u1 u #d
100 1 $aGHETTI, A. M.
245 $aCharacterization of blood flow and the effects of exogenous estradiol benzoate on residual follicles formed after ultrasound-guided transvaginal follicle aspiration in cattle.$h[electronic resource]
260 $c2016
520 $aAbstract Background: Removal of the follicular content by ultrasound-guided transvaginal follicle aspiration (TVFA) may fail to induce immediate atresia and loss of function, resulting in the occurrence of residual follicles (RF). The aims of this study were to characterize the blood flow in RF and to determine the effects of the treatment with estradiol benzoate on RF fate. Lactating, cyclic Holstein-Gir crossbred cows were used. In Experiment 1, follicular wave emergence (D0) was synchronized in cows (n = 10) and follicular growth was then monitored by transrectal ultrasonography from D0 to D8, followed by TVFA of the largest follicle present on the ovaries 24 h later. Color Doppler ultrasound imaging was used to examine blood flow on the follicular wall, which was recorded immediately before and every 12 h after TVFA, up to 72 h. In experiment 2, cows (n = 22) were randomly allocated to receive either 2 mL of saline i.m. (Control group, n = 11) or 2 mL estradiol benzoate i.m. (EB group, n = 11) immediately after TVFA. Ovaries were scanned every 12 h to confirm the presence and to measure the diameter of RF. The contents of the RF, if present, were collected 72 h after the first TVFA, using the same aspiration procedures. Follicular fluid from original follicles and RF were stored at -20 °C until hormonal assays. Results: In Experiment 1, there was no reduction (P > 0.05) of blood flow in the remaining follicle walls after TVFA and maximum blood flow values were observed at 49.5 ± 19.7 h post-TVFA. In Experiment 2, formation of RF after TVFA was proportionally similar between Controls (5/9) and EB (5/10) cows. Also, RF diameter did not differ between groups (P > 0.05). Nonetheless, the content of RF from cows in the EB group had lower (P = 0.0004) estradiol (E2) concentration and lower (P = 0.0005) E2:P4 ratio compared with Controls. Conclusions: In conclusion, 1) the persistence of vascularization in the remaining follicle wall may contribute to the formation of RF after follicle aspiration, and 2) the treatment with estradiol benzoate does not prevent formation of RF, but does reduce their estradiol production.
650 $asteroidogenesis
653 $aDoppler
653 $aOvary
653 $aOvum pick-up
653 $aVascularization
700 1 $aSIQUEIRA, L. G. B.
700 1 $aARASHIRO, E. K. N.
700 1 $aPALHÃO, M. P.
700 1 $aBRANDÃO, F. Z.
700 1 $aVIANA, J. H. M.
773 $tJournal of Animal Science and Biotechnology$gv. 7, article 59, 2016.
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Embrapa Gado de Leite (CNPGL) |
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