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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
17/03/2011 |
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Data da última atualização: |
06/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ARASHIRO, E. K. N.; FONSECA, J. F. da; PEREIRA, L. G. R.; 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 RIBEIRO PEREIRA, CNPGL; C. A. FERNANDES, Universidade de Alfenas; F. Z. BRANDÃO, UFF; E. OBA, FMVZ/UNESP; 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, 2010. |
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DOI: |
https://doi.org/10.1016/j.smallrumres.2010.07.007 |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Echotexture; Goat; Ultrasound. |
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Thesaurus Nal: |
corpus luteum. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/29909/1/LGustavo-2010-SmallRRes.pdf
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Marc: |
LEADER 02647naa a2200253 a 4500
001 1881407
005 2024-02-06
008 2010 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.smallrumres.2010.07.007$2DOI
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 $acorpus luteum
653 $aEchotexture
653 $aGoat
653 $aUltrasound
700 1 $aFONSECA, J. F. da
700 1 $aPEREIRA, L. G. R.
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, 2010.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
02/03/2023 |
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Data da última atualização: |
02/03/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
COSTA, J. L. da S. |
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Afiliação: |
JEFFERSON LUIS DA SILVA COSTA, CNPAF. |
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Título: |
Transmissão por sementes e controle de alguns patógenos do caupi. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Fitopatologia Brasileira, v. 14, n. 2, p. 157, jul. 1989. Suplemento, ref. 267. Edição de Resumos do XXII Congresso Brasileiro de Fitopatologia, Recife, PE, jul. 1989. |
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Idioma: |
Português |
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Palavras-Chave: |
Caupi. |
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Thesagro: |
Patógeno; Semente; Transmissão de Doença. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152050/1/fb-1989-p157.pdf
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Marc: |
LEADER 00568nam a2200145 a 4500
001 2152050
005 2023-03-02
008 1989 bl uuuu u00u1 u #d
100 1 $aCOSTA, J. L. da S.
245 $aTransmissão por sementes e controle de alguns patógenos do caupi.$h[electronic resource]
260 $aFitopatologia Brasileira, v. 14, n. 2, p. 157, jul. 1989. Suplemento, ref. 267. Edição de Resumos do XXII Congresso Brasileiro de Fitopatologia, Recife, PE, jul. 1989.$c1989
650 $aPatógeno
650 $aSemente
650 $aTransmissão de Doença
653 $aCaupi
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Embrapa Arroz e Feijão (CNPAF) |
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