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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
16/05/2017 |
Data da última atualização: |
31/05/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BALARO, M. F. A.; SANTOS, A. S.; MOURA, L. F. G. M.; FONSECA, J. F. da; BRANDÃO, F. Z. |
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. |
Título: |
Luteal dynamic and functionality assessment in dairy goats by luteal blood flow, luteal biometry, and hormonal assay. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Theriogenology, v. 95, p. 118-126, June, 2017. |
DOI: |
https://doi.org/10.1016/j.theriogenology.2017.02.021 |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Color Doppler ultrasound; Does; Luteinized-persistent follicle; Number of colored pixels; Oestrous cycle. |
Thesagro: |
Cabra leiteira; Caprino; Ciclo estral; Corpo lúteo; Progesterona. |
Thesaurus Nal: |
Corpus luteum; Goats; Progesterone; Saanen. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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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Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
23/11/2012 |
Data da última atualização: |
05/12/2012 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 5 |
Autoria: |
GEORGE, S.; CIRCLE, K.; LINDBLOM, S.; VILAIN, S.; ROSA, A. J. de M.; FRANCIS, D.; BRÖZEL, V.; KAUSHIK, R. S. |
Afiliação: |
SAJAN GEORGE, SOUTH DAKOTA STATE UNIVERSITY; KATHERINE CIRCLE, SOUTH DAKOTA STATE UNIVERSITY; STACY LINDBLOM, SOUTH DAKOTA STATE UNIVERSITY; SEBASTIEN VILAIN, SOUTH DAKOTA STATE UNIVERSITY; ARTUR JORDAO DE MAGALHAES ROSA, CPAC; DAVID FRANCIS, SOUTH DAKOTA STATE UNIVERSITY; VOLKER BRÖZEL, SOUTH DAKOTA STATE UNIVERSITY; RADHEY S. KAUSHIK, SOUTH DAKOTA STATE UNIVERSITY. |
Título: |
Assessment of toll-like receptors in the ileum of weanling pigs - responses to feed antibiotic chlortetracycline and gnotobiotic conditions. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Journal of Clinical & Cellular Immunology, v. 3, issue 3, 2012. |
ISSN: |
2155-9899 |
Idioma: |
Inglês |
Thesagro: |
Genética. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/71229/1/ID33438.pdf
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Marc: |
LEADER 00663naa a2200217 a 4500 001 1940452 005 2012-12-05 008 2012 bl uuuu u00u1 u #d 022 $a2155-9899 100 1 $aGEORGE, S. 245 $aAssessment of toll-like receptors in the ileum of weanling pigs - responses to feed antibiotic chlortetracycline and gnotobiotic conditions. 260 $c2012 650 $aGenética 700 1 $aCIRCLE, K. 700 1 $aLINDBLOM, S. 700 1 $aVILAIN, S. 700 1 $aROSA, A. J. de M. 700 1 $aFRANCIS, D. 700 1 $aBRÖZEL, V. 700 1 $aKAUSHIK, R. S. 773 $tJournal of Clinical & Cellular Immunology$gv. 3, issue 3, 2012.
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