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| Registros recuperados : 265 | |
| 7. |  | CAVALCANTI, A. dos S.; BRANDÃO, F. Z.; NOGUEIRA, L. A. G.; FONSECA, J. F. da. Effects of GnRH administration on ovulation and fertility in ewes subjected to estrous synchronization. Revista Brasileira de Zootecnia, Viçosa, MG, v. 41, n. 6, p. 1412-1418, Jun. 2012.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 9. | | FONSECA, J. F. da; CRUZ, R. C.; MANCIO, A. B.; ESTEVES, L. V.; BRANDÃO, F. Z.; FACO, O. Comportamento estral, dinâmica ovulatória e descarga de muco cervical em cabras Toggenburg submetidas à indução de estro com diferentes gonadotrofinas. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 26., 2012, Foz do Iguaçu. Anais. Belo Horizonte: CBRA, 2012. SBTE 067. p. 361.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 12. | | PINNA, A. E.; BRANDÃO, F. Z.; CAVALCANTI, A. S.; BORGES, A. M.; LOUREIRO, A. A. A.; FONSECA, J. F. da. Fertilidade de ovelhas cíclicas submetidas à sincronização do estro utilizando implantes intravaginais (CIDR) novos ou reutilizados. Acta Scientiae Veterinariae Porto Alegre, v. 36, Supl. 2, p. s581, 2008. Edição dos Resumos XXII Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Guarujá, SP, 2008.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 13. | | FONSECA, J. F. da; SOUZA, J. M. G. de; VIEIRA, L. E.; BRUSCHI, J. H.; BRANDÃO, F. Z. Manejo reprodutivo de caprinos e ovinos na região Norte do Brasil. In: ZOOTEC NA AMAZÔNIA LEGAL, 1.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 20., 2010, Palmas. Sustentabilidade e produção animal: anais das palestras. Araguaiana: Universidade Federal de Tocantins: Associação Brasileira de Zootecnistas, 2010. p. 177-197.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 14. | | BALARO, M. F. A.; SANTOS, A. S.; MOURA, L. F. G. M.; FONSECA, J. F. da; BRANDÃO, F. Z. Luteal dynamic and functionality assessment in dairy goats by luteal blood flow, luteal biometry, and hormonal assay. Theriogenology, v. 95, p. 118-126, June, 2017.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 16. | | SANTOS, G. B.; BRANDÃO, F. Z.; CARVALHO, B. C. de; MACHADO, F. S.; VARAGO, F. C.; VARGAS, M. W. População folicular e produção de oócitos em vacas primíparas 3/4 e 7/8 Holandês x Gir no pós-parto. CONGRESSO BRASILEIRO DE REPRODUÇÃO ANIMAL, 20., 2013, Uberlandia. Anais... Belo Horizonte: CBRA, 2013. p. 187.| Biblioteca(s): Embrapa Gado de Leite. |
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| 17. | | PINTO, P. H. N.; FREITAS, J. A. de; BRANDÃO, F. Z.; ESTEVES, L. V.; FONSECA, J. F. da. Possíveis impactos do projeto: "Uso de sêmen resfriado e inseminação artificial em caprinos leiteiros na República de Cabo Verde". Synergismus scyentifica UTFPR, Pato Branco, v. 7, n. 1, p. 1-3, 2012. Anais do 15o. Simpósio Paranaense de Ovinocultura, 3o. Simpósio Paranaense de Caprinocultura, 3o. Simpósio Sul Brasileiro de Ovinos e Caprinos, Pato Branco, PR, out., 2011.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 18. | | PENNA, B.; LORANATI, H.; DIRECTOR, A.; SARZEDAS, A. C.; MARTINS, G.; BRANDÃO, F. Z.; FONSECA, J. F. da; LILENBAUNM, W. Progestin-impregnated intravaginal sponges for estrus induction and synchronization influences on goats vaginal flora and antimicrobial susceptibility. Animal Reproduction Science, v. 142, n. 1/2, p. 71-74, Nov. 2013.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 19. | | PIETROSKI, A. C. C. A.; BRANDÃO, F. Z.; SOUZA, J. M. G. de; FONSECA, J. F. da. Short, medium or long-term hormonal treatments for induction of synchronized estrus and ovulation in Saanen goats during the nonbreeding season. Revista Brasileira de Zootecnia, Viçosa, MG, v. 42, n. 3, p. 168-173, 2013.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 20. | | PINNA, A. E.; BRANDÃO, F. Z.; CAVALCANTI, A. S.; BORGES, A. M.; SOUZA, J. M. G.; FONSECA, J. F. da. Reproductive parameters of Santa Inês ewes submitted to short-term treatment with re-used progesterone devices. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 64, n. 2, p. 333-340, 2012.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| Registros recuperados : 265 | |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
16/05/2017 |
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Data da última atualização: |
31/05/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
BALARO, M. F. A.; SANTOS, A. S.; MOURA, L. F. G. M.; FONSECA, J. F. da; BRANDÃO, F. Z. |
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Afiliação: |
Mario Felipe A. Balaro, Universidade Federal Fluminense (UFV) - Niteroi, RJ, Brazil; Alex S. Santos, Universidade Federal Fluminense (UFV) - Niteroi, RJ, Brazil; Luiz Fernando G. M. Moura, Universidade Federal Fluminense (UFV) - Niteroi, RJ, Brazil; JEFERSON FERREIRA DA FONSECA, CNPC; Felipe Z. Brandão, Universidade Federal Fluminense (UFV) - Niteroi, RJ, Brazil. |
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Título: |
Luteal dynamic and functionality assessment in dairy goats by luteal blood flow, luteal biometry, and hormonal assay. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Theriogenology, v. 95, p. 118-126, June, 2017. |
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DOI: |
https://doi.org/10.1016/j.theriogenology.2017.02.021 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: This study aimed to assess the luteal dynamics of pregnant and non-pregnant Saanen goats throughout an estrous cycle by B-mode and color Doppler ultrasonography (US) associated with a P4 hormonal assay. Furthermore, a cutoff point was chosen to determine the corpus luteum (CL) functionality by luteal biometry (LB) measurement and luteal blood flow (LBF) assessment. Ultrasound assessment was carried out daily throughout an entire estrous cycle (21 days) in 23 Saanen goats pre-synchronized and inseminated in the breeding season. The plasmatic P4 concentration was determined daily by radioimmunoassay. LB parameters (diameter, area, and volume) were measured using the maximum area of a cross-section of the CL. LBF assessment was performed subjectively by percentage of area of colored pixels and objectively by calculating the number of the colored pixels. Eventually, 45.0% (9/20) and 55.0% (11/20) of goats became pregnant and or remained non-pregnant, respectively. The LB and LBF demonstrated value stabilization on the 9th day of the estrous cycle and maximum values on the 12th and 13th days of the estrous cycle, respectively. LB presented a progressive decrease in the luteal regression phase, whereas the LBF decreased abruptly in association with P4. The LBF values were more reliable in predicting the luteal functionality when compared to the LB data. The number of colored pixels accurately predicted values of P4 >1.0 ng/mL, reaching only 17% of the maximum values, and 1200 colored pixels as a minimum cutoff point when compared to the use of 53% of the maximum values and a minimum luteal diameter of 9.0 mm as cutoff point for P4 >1.0 ng/mL. The LBF assessment was more informative about the CL functionality throughout the complete luteal phase when compared to the LB. The use of the number of colored pixels is indicated for research regarding luteal functionality due to their greater correlation with P4 values. In addition, the luteal subjective evaluation can be used under field conditions due to greater convenience and similar pattern of correlation with P4. MenosAbstract: This study aimed to assess the luteal dynamics of pregnant and non-pregnant Saanen goats throughout an estrous cycle by B-mode and color Doppler ultrasonography (US) associated with a P4 hormonal assay. Furthermore, a cutoff point was chosen to determine the corpus luteum (CL) functionality by luteal biometry (LB) measurement and luteal blood flow (LBF) assessment. Ultrasound assessment was carried out daily throughout an entire estrous cycle (21 days) in 23 Saanen goats pre-synchronized and inseminated in the breeding season. The plasmatic P4 concentration was determined daily by radioimmunoassay. LB parameters (diameter, area, and volume) were measured using the maximum area of a cross-section of the CL. LBF assessment was performed subjectively by percentage of area of colored pixels and objectively by calculating the number of the colored pixels. Eventually, 45.0% (9/20) and 55.0% (11/20) of goats became pregnant and or remained non-pregnant, respectively. The LB and LBF demonstrated value stabilization on the 9th day of the estrous cycle and maximum values on the 12th and 13th days of the estrous cycle, respectively. LB presented a progressive decrease in the luteal regression phase, whereas the LBF decreased abruptly in association with P4. The LBF values were more reliable in predicting the luteal functionality when compared to the LB data. The number of colored pixels accurately predicted values of P4 >1.0 ng/mL, reaching only 17% of the maximum values, and... Mostrar Tudo |
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Palavras-Chave: |
Color Doppler ultrasound; Does; Luteinized-persistent follicle; Number of colored pixels; Oestrous cycle. |
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Thesagro: |
Cabra leiteira; Caprino; Ciclo estral; Corpo lúteo; Progesterona. |
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Thesaurus NAL: |
Corpus luteum; Goats; Progesterone; Saanen. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03150naa a2200349 a 4500
001 2069658
005 2017-05-31
008 2017 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.theriogenology.2017.02.021$2DOI
100 1 $aBALARO, M. F. A.
245 $aLuteal dynamic and functionality assessment in dairy goats by luteal blood flow, luteal biometry, and hormonal assay.$h[electronic resource]
260 $c2017
520 $aAbstract: This study aimed to assess the luteal dynamics of pregnant and non-pregnant Saanen goats throughout an estrous cycle by B-mode and color Doppler ultrasonography (US) associated with a P4 hormonal assay. Furthermore, a cutoff point was chosen to determine the corpus luteum (CL) functionality by luteal biometry (LB) measurement and luteal blood flow (LBF) assessment. Ultrasound assessment was carried out daily throughout an entire estrous cycle (21 days) in 23 Saanen goats pre-synchronized and inseminated in the breeding season. The plasmatic P4 concentration was determined daily by radioimmunoassay. LB parameters (diameter, area, and volume) were measured using the maximum area of a cross-section of the CL. LBF assessment was performed subjectively by percentage of area of colored pixels and objectively by calculating the number of the colored pixels. Eventually, 45.0% (9/20) and 55.0% (11/20) of goats became pregnant and or remained non-pregnant, respectively. The LB and LBF demonstrated value stabilization on the 9th day of the estrous cycle and maximum values on the 12th and 13th days of the estrous cycle, respectively. LB presented a progressive decrease in the luteal regression phase, whereas the LBF decreased abruptly in association with P4. The LBF values were more reliable in predicting the luteal functionality when compared to the LB data. The number of colored pixels accurately predicted values of P4 >1.0 ng/mL, reaching only 17% of the maximum values, and 1200 colored pixels as a minimum cutoff point when compared to the use of 53% of the maximum values and a minimum luteal diameter of 9.0 mm as cutoff point for P4 >1.0 ng/mL. The LBF assessment was more informative about the CL functionality throughout the complete luteal phase when compared to the LB. The use of the number of colored pixels is indicated for research regarding luteal functionality due to their greater correlation with P4 values. In addition, the luteal subjective evaluation can be used under field conditions due to greater convenience and similar pattern of correlation with P4.
650 $aCorpus luteum
650 $aGoats
650 $aProgesterone
650 $aSaanen
650 $aCabra leiteira
650 $aCaprino
650 $aCiclo estral
650 $aCorpo lúteo
650 $aProgesterona
653 $aColor Doppler ultrasound
653 $aDoes
653 $aLuteinized-persistent follicle
653 $aNumber of colored pixels
653 $aOestrous cycle
700 1 $aSANTOS, A. S.
700 1 $aMOURA, L. F. G. M.
700 1 $aFONSECA, J. F. da
700 1 $aBRANDÃO, F. Z.
773 $tTheriogenology$gv. 95, p. 118-126, June, 2017.
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