| |
|
|
| Registros recuperados : 69 | |
| 8. |  | OLIVEIRA FILHO, A. T. de; MARTINS, F. R. Contribuicao ao conhecimento dos tipos de cerrado na regiao da Salgadeira - Chapada dos Guimaraes - MT. In: CONGRESSO NACIONAL DE BOTANICA, 36., 1985, Curitiba, PR. Programas e resumos. Curitiba: Sociedade Botanica do Brasil/Associacao Internacional de Anatomistas da Madeira, 1985. p.112. Conferencia Regional Pan-Americana de Anatomia da Madeira/Encontro Nacional de Curadores de Herbario, 1., 1985, Curitiba, PR.| Biblioteca(s): Embrapa Cerrados. |
|   |
| 13. | | RODRIGUES PINTO, J. R.; OLIVEIRA-FILHO, A.T. de. Perfil floristico e estrutura da comunidade arborea de uma floresta de vale no Parque Nacional da Chapada dos Guimaraes, Mato Grosso, Brasil. Revista Brasileira de Botanica, Sao Paulo, v.22, n.1, p.53-67, abr., 1999.| Biblioteca(s): Embrapa Pantanal. |
| |
| 14. | | OLIVEIRA FILHO, A. T. de; MARTINS, F. R. Estudo fitossociologico de um cerrado na Chapada dos Guimaraes, MT. In: CONGRESSO NACIONAL DE BOTANICA, 36., 1985, Curitiba, PR. Programas e resumos. Curitiba: Sociedade Botanica do Brasil/Associacao Internacional de Anatomistas da Madeira, 1985. p.113. Conferencia Regional Pan-Americana de Anatomia da Madeira/Encontro Nacional de Curadores de Herbario, 1., 1985, Curitiba, PR.| Biblioteca(s): Embrapa Cerrados. |
| |
| Registros recuperados : 69 | |
|
|
|
 | 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
|
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
|
Data corrente: |
03/03/2011 |
|
Data da última atualização: |
24/09/2019 |
|
Tipo da produção científica: |
Nota Técnica/Nota Científica |
|
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. |
|
Afiliação: |
E. K. N. ARASHIRO, Universidade Federal Fluminense (UFF); JEFERSON FERREIRA DA FONSECA, CNPC; LUIZ GUSTAVO BRUNO SIQUEIRA, CNPGL; UFF; JOAO HENRIQUE MOREIRA VIANA, CNPGL. |
|
Título: |
Assessment of luteal function in goats by ultrasonographic image attribute analysis. |
|
Ano de publicação: |
2010 |
|
Fonte/Imprenta: |
Small Ruminant Research, v. 94, n. 1/3, p. 176-179, Nov. 2010. |
|
Idioma: |
Inglês |
|
Conteúdo: |
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. MenosThe 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... Mostrar Tudo |
|
Palavras-Chave: |
Raça Toggenburg. |
|
Thesagro: |
Cabra; Caprino; Corpo lúteo; Reprodução animal; Útero. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02643naa a2200265 a 4500
001 1879987
005 2019-09-24
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 $aThe 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 $aCabra
650 $aCaprino
650 $aCorpo lúteo
650 $aReprodução animal
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.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
