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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: |
24/09/2019 |
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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 (UFF); JEFERSON FERREIRA DA FONSECA, CNPC; LUIZ GUSTAVO BRUNO SIQUEIRA, CNPGL; UFF; 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: |
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: |
Raça Toggenburg. |
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Thesagro: |
Cabra; Caprino; Corpo lúteo; Reprodução animal; Útero. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02643naa a2200265 a 4500
001 1879987
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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.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 164 | |
| 61. |  | CHEN, Z.; HAGEN, D. E.; WANG, J.; ELSIK, C. G.; JI, T.; SIQUEIRA, L. G. B.; HANSEN, P. J.; RIVERA, R. M. Global assessment of imprinted gene expression in the bovine conceptus by next generation sequencing. Epigenetics, v. 11, n. 7, p. 501-516, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 62. | | FONSECA, J. F. da; VERGANI, G. B.; CÔRTES, L. R.; RODRIGUES, J. N. D.; SIQUEIRA, L. G. B.; SOUZA-FABJAN, J. M.; OLIVEIRA, M. E. F. Induction of accessory corpus luteum in goats and sheep: from physiological basis to reproductive effects. Revista Brasileira de Reprodução Animal, v. 45, n. 4, p. 309-317, out./dez. 2021. Edição dos anais do XXIV Congresso Brasileiro de Reprodução Animal e VIII International Symposium on Animal Biology of Reproduction, Belo Horizonte, 2021.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 63. | | FONSECA, J. F. da; VERGANI, G. B.; CÔRTES, L. R.; RODRIGUES, J. N. D.; SIQUEIRA, L. G. B.; SOUZA-FABJAN, J. M.; OLIVEIRA, M. E. F. Induction of accessory corpus luteum in goats and sheep: From physiological basis to reproductive effects. Revista Brasileira de Reprodução Animal, v. 45, n. 4, p. 309-317, out./dez. 2021. Anais do XXIV Congresso Brasileiro de Reprodução Animal (CBRA-2021) e VIII International Symposium on Animal Biology of Reproduction - Joint Meeting, Belo Horizonte, MG, 19 a 22 de outubro de 2021.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 64. | | WOHLRES-VIANA, S.; ARASHIRO, E. K. N; MACHADO, M. A.; CAMARGO, L. S. de A.; SIQUEIRA, L. G. B.; PALHÃO, M. P.; VIANA, J. H. M. Intrafollicular oestradiol production, expression of the LH receptor (LHR) gene and its isoforms, and early follicular deviation in Bos indicus. Reproduction Fertility and Development, v. 29, n. 10, p. 1958-1970, 2017. Publicado online em 19 nov. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Gado de Leite; Embrapa Recursos Genéticos e Biotecnologia. |
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| 65. | | SIQUEIRA, L. G. B.; TORRES, C. A. A.; AMORIM, L. S.; SOUZA, E. D.; CAMARGO, L. S. de A.; FERNANDES, C. A. C.; VIANA, J. H. M. Interrelationships among morphology, echotexture, and function of the bovine corpus luteum during the estrous cycle. Animal Reproduction Science, v. 115, n. 1/4, p. 18-28, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 67. | | ARASHIRO, E. K. N.; VIEIRA, D. S.; PFEIFER, L. F. M.; SIQUEIRA, L. G. B.; CAMARGO, L. S. de A.; FERNANDES, C. A. C.; VIANA, J. H. M. Induction of ovulation with estradiol benzoate affects the progression of vascularization in preoculatory follicles. n: ANNUAL CONFERENCE OF THE INTERNATIONAL EMBRYO TRANSFER SOCIETY, 2013, Hannover. Proceedings... Hannover: [s.n.], 2013.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 69. | | SCHWARZ, D. G. G.; OLIVEIRA, T. S. A. M. de; MALAQUIAS, J. V.; BRAVO, R. P. B.; SIQUEIRA, L. G. B.; MARTINS, C. F. Influência da idade e condição corporal no comportamento em pastejo de ovinos Santa Inês no Bioma Cerrado. In: ENCONTRO DE JOVENS TALENTOS DA EMBRAPA CERRADOS, 4., 2009, Planaltina, DF. Resumos apresentados... Planaltina, DF: Embrapa Cerrados, 2009. p. 169-170 (Embrapa Cerrados. Documentos, 243).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 71. | | SIQUEIRA, L. G. B.; VIANA, J. H. M.; DINIZ, E. S.; CAMARGO, L. S. A.; OLIVEIRA, A. P.; FERNANDES, C. A. C.; TORRES, C. A. A. Luteal tissue area in embryo recipients synchronized and with spontaneous or estradiol benzoate induced ovulation. Acta Scientiae Veterinariae, v. 34, s494, 2006. Supl. 1. Edição dos resumos da 20ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Araxá, 2006.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 72. | | CAMARGO, L. S. de A.; QUINTAO, C. C. R.; DENICOL, A. C.; IGUMA, L. T.; CARVALHO, B. C. de; SIQUEIRA, L. G. B.; VIANA, J. H. M. Efeito da tricostatina A na produção de embriões bovinos por transferência nuclear com células somáticas e subsequente gestações. Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, 25., 2011, Cumbuco. Resumos... p. 436| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 73. | | AMORIM, L. S.; TORRES, C. A. A.; AMORIM, E. A. M.; GUIMARÃES, J. D.; FONSECA, J. F. da; SIQUEIRA, L. G. B.; SEIDEL, G. E. Effect of dietary urea on embryonic viability and development of Toggenburg goats. Reproduction, Fertility and Development, v.21, n. 1, p. 151, 2009. Edição dos proceedings da Annual Conference or the International Embryo Transfer Society, San Diego, California, 2009.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 74. | | VIEIRA, A. C.; QUINTAO, C. C. R.; SIQUEIRA, L. G. B.; OLIVEIRA, C. S.; SILVA, T. A.; VIEIRA, C. D.; CAMARGO, L. S. de A. Effect of epigenetic modulators on development of bovine embryos derived from heatshocked oocytes. Animal Reproduction, v. 15, n. 3, p. 483, 2018. Edição dos proceedings do 32º Annual Meeting of the Brazilian Embryo Technology Society, Florianópolis, 2018.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 75. | | SIQUEIRA, L. G. B.; SEQUETO, R.; ANUNCIAÇÃO, R.; CAMARGO, L. S. de A.; FERNANDES, C.; FONSECA, J. F. da; PFEIFER, L. F. M.; VIANA, J. H. M. Hormonal profile during resynchronisation using oestradiol benzoate and progesterone-based protocols associated or not with flunixin meglumine in cattle. Reproduction, Fertility, and Development, v. 35, n. 1/2, p. 218-219, 2023. Edição dos Proceedings of the 49th Annual Conference of the International Embryo Technology, Lima, Peru, 2023.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos; Embrapa Gado de Leite; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Rondônia. |
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| 76. | | MAIA, A. L. R. S.; BRANDÃO, F. Z.; SOUZA-FABJAN, J. M. G.; ARAÚJO, M. C. C.; SIQUEIRA, L. G. B.; FACO, O.; FONSECA, J. F. da. Hydrosalpinx in dairy goats: occurrence, ultrasound diagnosis, macro- and microscopic characterization. Small Ruminant Research, v. 160, p. 5-11, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Caprinos e Ovinos; Embrapa Gado de Leite. |
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| 77. | | CAMARGO, L. S. de A.; GONÇALVES, F. S.; QUINTAO, C. C. R.; IGUMA, L. T.; SOUZA, E. D.; SIQUEIRA, L. G. B.; VIANA, J. H. M. Genetic modification of bovine embryos by lentiviral vectors. Animal Reproduction, v.10, n.3, p. 359, Jul./Sept. 2013.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 78. | | GRAZIA, J. G. V.; LACERDA, L. G.; SIQUEIRA, L. G. B.; PELLEGRINO, C. A. G.; GRAPIUNA, L. S.; SOLLECITO, N. V.; VIANA, J. H. M. Effects of Gas Tension During Culture upon Development of Bovine Embryos from Beef (Nellore) and Dairy (Girolando) Breeds. In: International Embryo Technology Society and the Society for Reproductive Biology, v. 30 n. 1. Resumo em Anais. Bangkok, Tailandia. IETS, 2018. 207.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 79. | | CAMARGO, L. S. de A.; SIQUEIRA, L. G. B.; SARAIVA, N. Z.; MAIA, G.; NOGUEIRA, B.; QUINTAO, C. C. R.; OLIVEIRA, C. S. Effect of physiological heat stress on HSP70 and CASPASE 3 levels in bovine oocytes. In: ANNUAL CONFERENCE, 52., 2019, San Jose. Beyond possible: remarkable transformation of reproductive biology: abstracts. San Jose: Society for the Study of Reproduction, 2019.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 80. | | MOURA, R. M. de; MARTINS, L. P.; SIQUEIRA, L. G. B.; FERNANDES, C. A. C.; MARTINS, C. F.; FIGUEIREDO, R. A.; VIANA, J. H. M. Effect of the route of administration of recombinant human FSH on ovarian superestimulatory response in calves. Animal Reproduction, v. 19, n. 2, 2022. e22084. Proceedings of the 35rd Annual Meeting of the Brazilian Embryo Technology Society (SBTE); Foz do Iguaçu, August 2022. Abstracts.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados; Embrapa Recursos Genéticos e Biotecnologia. |
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| Registros recuperados : 164 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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