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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: |
03/03/2011 |
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Data da última atualização: |
14/01/2025 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
ARASHIRO, E. K. N.; FONSECA, J. F. da; SIQUEIRA, L. G. B.; FERNANDES, C. A.; BRANDÃO, F. Z.; OBA, E.; VIANA, J. H. M. |
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Afiliação: |
E. K. N. ARASHIRO, UNIVERSIDADE FEDERAL FLUMINENSE; JEFERSON FERREIRA DA FONSECA, CNPC; LUIZ GUSTAVO BRUNO SIQUEIRA, CNPGL; UNIVERSIDADE FEDERAL FLUMINENSE; JOAO HENRIQUE MOREIRA VIANA, CNPGL. |
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Título: |
Assessment of luteal function in goats by ultrasonographic image attribute analysis. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Small Ruminant Research, v. 94, n. 1/3, p. 176-179, Nov. 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The aim of this study was to evaluate the potential of luteal echotexture (mean pixel value and heterogeneity), as a tool for assessing luteal function during different phases of the estrous cycle in Toggenburg goats. Sonographic evaluations of the ovaries were performed daily in nulliparous goats (n = 21), using a 5MHz linear rectal probe, commencing at estrus (day 0). Blood samples were collected daily for plasma progesterone RIA and images recorded on VHS tape and then digitized in TIFF format at a resolution of 1500×1125 pixels. A representative elementary area (REA) of 5625 pixels (0.31cm2) of these images was analyzed using custom-developed software, for mean pixel value and heterogeneity. Mean plasma progesterone, luteal area and pixels all reached maximum values at approximately days 13 and 14, during luteogenesis. Luteolysis was characterized by an abrupt decrease in blood progesterone concentration following ovulation, and a gradual decline in luteal area and pixel values. The luteal tissue area was positively correlated with plasma progesterone concentration during both luteogenesis (r = 0.63; P < 0.05) and luteolysis (r = 0.50; P < 0.05). Weak correlations were recorded between the mean pixel value and luteal tissue area during luteogenesis (r = 0.34; P < 0.05) and luteolysis (r = 0.26; P < 0.05). Similarly, weak correlations between the mean pixel value and plasma progesterone concentration were recorded during luteogenesis (r = 0.24; P < 0.05) and luteolysis (r = 0.37; P < 0.05). The pixel heterogeneity was not correlated with luteal tissue area or the plasma progesterone concentration at any stage of the estrous cycle. The results show the association between the corpus luteum echotexture and steriodogenic function to be weak and the present ultrasound technology, to have limited potential in evaluating luteal function in goats. MenosAbstract: The aim of this study was to evaluate the potential of luteal echotexture (mean pixel value and heterogeneity), as a tool for assessing luteal function during different phases of the estrous cycle in Toggenburg goats. Sonographic evaluations of the ovaries were performed daily in nulliparous goats (n = 21), using a 5MHz linear rectal probe, commencing at estrus (day 0). Blood samples were collected daily for plasma progesterone RIA and images recorded on VHS tape and then digitized in TIFF format at a resolution of 1500×1125 pixels. A representative elementary area (REA) of 5625 pixels (0.31cm2) of these images was analyzed using custom-developed software, for mean pixel value and heterogeneity. Mean plasma progesterone, luteal area and pixels all reached maximum values at approximately days 13 and 14, during luteogenesis. Luteolysis was characterized by an abrupt decrease in blood progesterone concentration following ovulation, and a gradual decline in luteal area and pixel values. The luteal tissue area was positively correlated with plasma progesterone concentration during both luteogenesis (r = 0.63; P < 0.05) and luteolysis (r = 0.50; P < 0.05). Weak correlations were recorded between the mean pixel value and luteal tissue area during luteogenesis (r = 0.34; P < 0.05) and luteolysis (r = 0.26; P < 0.05). Similarly, weak correlations between the mean pixel value and plasma progesterone concentration were recorded during luteogenesis (r = 0.24; P < 0.05) and lut... Mostrar Tudo |
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Palavras-Chave: |
Raça Toggenburg. |
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Thesagro: |
Cabra; Caprino; Corpo lúteo; Reprodução animal; Ultrassom; Útero. |
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Thesaurus Nal: |
Corpus luteum; Goats; Reproduction; Ultrasonography. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02792naa a2200325 a 4500
001 1879987
005 2025-01-14
008 2010 bl uuuu u00u1 u #d
100 1 $aARASHIRO, E. K. N.
245 $aAssessment of luteal function in goats by ultrasonographic image attribute analysis.$h[electronic resource]
260 $c2010
520 $aAbstract: The aim of this study was to evaluate the potential of luteal echotexture (mean pixel value and heterogeneity), as a tool for assessing luteal function during different phases of the estrous cycle in Toggenburg goats. Sonographic evaluations of the ovaries were performed daily in nulliparous goats (n = 21), using a 5MHz linear rectal probe, commencing at estrus (day 0). Blood samples were collected daily for plasma progesterone RIA and images recorded on VHS tape and then digitized in TIFF format at a resolution of 1500×1125 pixels. A representative elementary area (REA) of 5625 pixels (0.31cm2) of these images was analyzed using custom-developed software, for mean pixel value and heterogeneity. Mean plasma progesterone, luteal area and pixels all reached maximum values at approximately days 13 and 14, during luteogenesis. Luteolysis was characterized by an abrupt decrease in blood progesterone concentration following ovulation, and a gradual decline in luteal area and pixel values. The luteal tissue area was positively correlated with plasma progesterone concentration during both luteogenesis (r = 0.63; P < 0.05) and luteolysis (r = 0.50; P < 0.05). Weak correlations were recorded between the mean pixel value and luteal tissue area during luteogenesis (r = 0.34; P < 0.05) and luteolysis (r = 0.26; P < 0.05). Similarly, weak correlations between the mean pixel value and plasma progesterone concentration were recorded during luteogenesis (r = 0.24; P < 0.05) and luteolysis (r = 0.37; P < 0.05). The pixel heterogeneity was not correlated with luteal tissue area or the plasma progesterone concentration at any stage of the estrous cycle. The results show the association between the corpus luteum echotexture and steriodogenic function to be weak and the present ultrasound technology, to have limited potential in evaluating luteal function in goats.
650 $aCorpus luteum
650 $aGoats
650 $aReproduction
650 $aUltrasonography
650 $aCabra
650 $aCaprino
650 $aCorpo lúteo
650 $aReprodução animal
650 $aUltrassom
650 $aÚtero
653 $aRaça Toggenburg
700 1 $aFONSECA, J. F. da
700 1 $aSIQUEIRA, L. G. B.
700 1 $aFERNANDES, C. A.
700 1 $aBRANDÃO, F. Z.
700 1 $aOBA, E.
700 1 $aVIANA, J. H. M.
773 $tSmall Ruminant Research$gv. 94, n. 1/3, p. 176-179, Nov. 2010.
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Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 10 | |
| 5. |  | BILHARVA, M. G.; SOUZA, R. S. de; LÚCIO, P. da S.; MARTINS, C. R.; KROLOW, A. C. R. Análise química dos frutos das cultivares de amora-preta xingu e tupy produzidos em sistema de base ecológico. In: ENCONTRO DE INICIAÇÃO CIENTÍFICA E PÓS-GRADUAÇÃO DA EMBRAPA CLIMA TEMPERADO, 6., 2016, Pelotas. Ciência: Empreendedorismo e inovação: anais. Brasília, DF: Embrapa, 2016. p. 113-115| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 6. | | BILHARVA, M. G.; HELLWIG, C. G.; SOUZA, R. S. de; LUCIO, P. da S.; MALGARIM, M. B.; MARTINS, C. R. Rejuvenation pruning in a pecan orchard in southern Brazil,Poda de rejuvenecimiento en un huerto de nogal pecán en el sur de Brasil Revista Eletrônica Científica da UERGS, v. 10, n. 1, p. 66-73, 2024.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 7. | | LIMA, A. D. V.; SOUZA, R. S. de; LUCIO, P. da S.; GIACOMINI, G. X.; MARCO, R. de; MARTINS, C. R. Fenologia de cultivares de goiabeira em sistema de produção orgânico. Revista da 15ª Jornada de Pós-graduação e Pesquisa, v. 15, n, 15, p. 1192-1201, 2018.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 8. | | SOUZA, R. S. de; MARTINS, C. R.; LUCIO, P. da S.; BILHARVA, M. G.; MARCO, R. de; BARRETO, C. F.; PIESANTI, S. R.; MALGARIM, M. B. Caracterização das frutas de genótipos de goiabeira-serrana cultivados em sistema de base ecológica. Pelotas: Embrapa Clima Temperado, 2018. 16 p. (Embrapa Clima Temperado. Boletim de Pesquisa e Desenvolvimento, 291).| Tipo: Boletim de Pesquisa e Desenvolvimento |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 9. | | SOUZA, R. S.; PIESANTI, S. R.; LÚCIO, P. de S.; BARRETO, C. F.; BILHARVA, M. G.; MALGARIM, M. B.; MARTINS, C. R. Caracterização dos frutos de genótipos de goiabeira-serrana em sistema orgânico. In: REVISTA DA JORNADA DE PÓS-GRADUAÇÃO E PESQUISA, 14., 2017, Bagé. Anais... Bagé: Urcamp 2017. CONGREGA 2017. p. 880-888| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 10. | | BILHARVA, M. G.; SOUZA, R. S. de; DE MARCO, R.; LÚCIO, P. da S.; MARTINS, C. R.; CARDOSO, J. H.; MALGARIM, M. B. Nogueira-pecã em sistema agroflorestal. Research, Society and Development, v. 10, n. 6, e39710615637, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Agroindústria Tropical; Embrapa Clima Temperado. |
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| Registros recuperados : 10 | |
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