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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. |
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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: |
10/01/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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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; ALEX S. SANTOS, UNIVERSIDADE FEDERAL FLUMINENSE; LUIZ FERNANDO G. M. MOURA, UNIVERSIDADE FEDERAL FLUMINENSE; JEFERSON FERREIRA DA FONSECA, CNPC; FELIPE Z. BRANDÃO, UNIVERSIDADE FEDERAL FLUMINENSE. |
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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 2025-01-10
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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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 31 | |
| 1. |  | VAZ, C. M. P.; MACHADO, S. A. S.; MAZO, L. H.; AVACA, L. A.; CRESTANA, S. Adsorção do herbicida atrazina em diferentes solos. In: REUNIAO BRASILEIRA DE MANEJO E CONSERVACAO DO SOLO E DA AGUA: PEQUENA PROPRIEDADE X DESENVOLVIMENTO SUSTENTAVEL, 10., jul. 1994, Florianopolis, SC. Resumos... Florianopolis: Sociedade Brasileira de Ciencia do Solo, 1994. p.356-357. Ref.122.| Biblioteca(s): Embrapa Instrumentação. |
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| 2. | | VAZ, C. M. P.; CRESTANA, S.; MACHADO, S. A. S.; MAZO, L. H.; AVACA, L. A. Adsorption isotherms for atrazine on soils measured by differential pulse polarography. Electroanalysis, Weinheim, v. 9, n. 12, p. 956-958, 1997.| Biblioteca(s): Embrapa Instrumentação. |
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| 3. | | VAZ, C. M. P.; MACHADO, S. A. S.; MAZO, L. H.; AVACA, L. A.; CRESTANA, S. Analise de pesticidas por polarografia: determinacao de isotermas de adsorcao em solos. In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO: O SOLO NOS GRANDES DOMINIOS MORFOCLIMATICOS DO BRASIL E O DESENVOLVIMENTO SUSTENTADO, 25., jul. 1995, Vicosa, MG. Resumos expandidos... Vicosa: Universidade Federal de Vicosa, 1995. v.4 p.2393-2395. Ref.IX.39.| Biblioteca(s): Embrapa Instrumentação. |
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| 6. | | VAZ, C. M. P.; MACHADO, S. A. S.; MAZO, L. H.; AVACA, L. A.; CRESTANA, S. Método eletroquímico para a determinação analítica do herbicida atrazina. In: CONGRESSO IBEROAMERICANO DE ELECTROQUÍMICA, 11.; SIMPÓSIO BRASILEIRO DE ELETROQUÍMICA E ELETROANALÍTICA, 9., abr. 1994, Águas de Lindóia, SP. Resumos... São Paulo: Sociedade Brasileira de Química, 1994. p.527-529. Ref.III-26.| Biblioteca(s): Embrapa Instrumentação. |
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| 10. | | VAZ, C. M. P.; MACHADO, S. A. S.; MAZO, L. H.; AVACA, L. A.; CRESTANA, S. Determinação de atrazina em solos por voltametria diferencial de pulso. In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO - CERRADOS: FRONTEIRA AGRICOLA NO SECULO XXI, 24., jul. 1993, Goiania, GO. Resumos... Goiania: Sociedade Brasileira de Ciencia do Solo, 1993. p.291-292. Ref.542.| Biblioteca(s): Embrapa Instrumentação. |
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| 12. | | NUNES, L. M. da S.; BARBOSA, L. L.; MAZO, L. H.; COLNAGO, L. A. Espectroscopia de RMN-eletroquímica de alta resolução: uma técnica in situ para monitoramento de reação. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 2., 2010, São Carlos, SP. Anais... São Carlos: Embrapa Instrumentação Agropecuária: Embrapa Pecuária Sudeste, 2010. p. 72. (Embrapa Instrumentação Agropecuária. Documentos, 50).| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 14. | | VAZ, C. M. P.; MASSAROPI, M. R. C.; MACHADO, S. A. S.; MAZO, L. H.; AVACA, L. A.; CRESTANA, S. Adsorption isotherms of atrazine and 2,4-D in soils using differential pulse polarography. In: IUPAC GARP WORKSHOP PN PESTICIDES: USES AND ENVIRONMENTAL SAFETY IN LATIN AMERICA, Oct. 1996, Sao Paulo, SP. Book of abstracts... Sao Paulo: Sociedade Brasileira de Quimica, 1996. p. 65. Ref.P-03.| Biblioteca(s): Embrapa Instrumentação. |
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| 15. | | MACHADO, S. A. S.; VAZ, C. M. P.; CRESTANA, S.; MAZO, L. H.; MASSAROPPI, M. R. C.; AVACA, L. A. Análise de pesticidas por técnicas eletroanalíticas. In: SIMPOSIO NACIONAL DE INSTRUMENTACAO AGROPECUARIA, 1., 1996, Sao Carlos. Anais do I SIAGRO. Brasilia: EMBRAPA-SPI, 1997. p. 337-346.| Biblioteca(s): Embrapa Instrumentação. |
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| 16. | | VAZ, C. M. P.; MASSAROPPI, M. R. C.; MACHADO, S. A. S.; MAZO, L. H.; AVACA, L. A.; CRESTANA, S. Determinação polarográfica de isotermas de adsorção do herbicida atrazina em solos. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE QUIMICA, 17., maio 1994, Caxambu, MG. Livro de resumos... Sao Paulo: Sociedade Brasileira de Quimica, 1994. Nao-paginado. Ref.QA-123.| Biblioteca(s): Embrapa Instrumentação. |
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| 17. | | VAZ, C. M. P.; MOREIRA, A. A.; MACHADO, S. A. S.; MAZO, L. H.; AVACA, L. A.; CRESTANA, S. Polarografia de pulso diferencial na determinação de isotermas de adsorção de atrazina em alguns solos do estado de São Paulo. In: SIMPOSIO BRASILEIRO DE ELETROQUIMICA E ELETROANALITICA, 10., out. 1996, Sao Carlos, SP. Livro de resumos... [Anais...] Sao Carlos: UFSCar/USP, 1996. p. 155-157. Ref.EA7.| Biblioteca(s): Embrapa Instrumentação. |
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| 18. | | MASSAROPPI, M. R. C.; MACHADO, S. A. S.; MAZO, L. H.; AVACA, L. A.; VAZ, C. M. P.; CRESTANA, S. Utilização da polarografia de pulso diferencial na determinação de isotermas de adsorção de freundlich do herbicida 2,4-d em solos. In: SIMPOSIO BRASILEIRO DE ELETROQUIMICA E ELETROANALITICA, 10., out. 1996, Sao Carlos, SP. Livro de resumos... Sao Carlos: UFSCar/USP, 1996. p. 137-139.| Biblioteca(s): Embrapa Instrumentação. |
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| 19. | | VAZ, C. M. P.; MACHADO, S. A. S.; MAZO, L. H.; AVACA, L. A.; TRAGHETTA, D. G.; MARTIN NETO, L.; VIEIRA, E. M.; CRESTANA, S. Adsorption studies of atrazine on soils using differential pulse polarography. In: ANNUAL MEETING OF THE INTERNATIONAL SOCIETY OF ELECTROCHEMISTRY, 47., Sept. 1996, Veszprem, Hungria. Abstracts... Veszprem: International Society of Electrochemistry, 1996. p. P3a-1.| Biblioteca(s): Embrapa Instrumentação. |
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| 20. | | VAZ, C. M. P.; TRAGHETTA, D. G.; MARTIN NETO, L.; VIEIRA, E. M.; MACHADO, S. A. S.; MAZO, L. H.; AVACA, L. A.; CRESTANA, S. Análise de atrazina em amostras de ácido fúlvico e húmico por polarografia de pulso diferencial. In: ENCONTRO NACIONAL DE QUÍMICA ANALÍTICA, ,9., 1997. São Carlos. Livro de resumos... São Carlos: SBQA, 1997. p. 274.| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 31 | |
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