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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Epagri-Sede. Para informações adicionais entre em contato com biblio@epagri.sc.gov.br. |
Registro Completo |
Biblioteca(s): |
Epagri-Sede. |
Data corrente: |
25/10/2006 |
Data da última atualização: |
25/05/2009 |
Autoria: |
CASTRO, A. M. G. de; LIMA, S. M. V.; LOPES, M. A.; MACHADO, M. dos S.; MARTINS, M. A. G. |
Título: |
O futuro do melhoramento genetico vegetal no Brasil: impactos da biotecnologia e das leis de protecao de conhecimento. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
Brasilia: Embrapa Informaco Tecnologica, 2006. |
Páginas: |
506 p. |
Idioma: |
Português |
Conteúdo: |
Quais os rumos do melhoramento genetico de plantas e do mercado de sementes no Brasil. Transformacoes no sistema nacional de desenvolvimento de cultivares e producao de sementes. Marco conceitural e metodologico do estudo. Modelagem do desempenho do sistema nacional de producao de cultivares e sementes.Diagnostico do sistema nacional de producao de cultivares e sementes (SNPCS) - visao dos melhoristas. Mudancas recentes na producao de cultivares e sementes- indicadores secundarios. Setor de producao e comercializacao de cultivares e sementes- visao das empresas. Futuro da base genetica para a producao de cultivares. Melhoramento genetico e novos negocios. Capacidade, desempenho e espacos de atuacao dos sistemas de P & D publico e privado. Cenarios para o mercado de sementes. Conclusao - quais os rumos do melhoramento genetico de plantas e do mercado de sementes no Brasil. |
Palavras-Chave: |
Genetica vegetal; Melhoramento genetico vegetal; Producao vegetal; Variedade. |
Categoria do assunto: |
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Marc: |
LEADER 01546nam a2200217 a 4500 001 1049385 005 2009-05-25 008 2006 bl uuuu 00u1 u #d 100 1 $aCASTRO, A. M. G. de 245 $aO futuro do melhoramento genetico vegetal no Brasil$bimpactos da biotecnologia e das leis de protecao de conhecimento. 260 $aBrasilia: Embrapa Informaco Tecnologica$c2006 300 $a506 p. 520 $aQuais os rumos do melhoramento genetico de plantas e do mercado de sementes no Brasil. Transformacoes no sistema nacional de desenvolvimento de cultivares e producao de sementes. Marco conceitural e metodologico do estudo. Modelagem do desempenho do sistema nacional de producao de cultivares e sementes.Diagnostico do sistema nacional de producao de cultivares e sementes (SNPCS) - visao dos melhoristas. Mudancas recentes na producao de cultivares e sementes- indicadores secundarios. Setor de producao e comercializacao de cultivares e sementes- visao das empresas. Futuro da base genetica para a producao de cultivares. Melhoramento genetico e novos negocios. Capacidade, desempenho e espacos de atuacao dos sistemas de P & D publico e privado. Cenarios para o mercado de sementes. Conclusao - quais os rumos do melhoramento genetico de plantas e do mercado de sementes no Brasil. 653 $aGenetica vegetal 653 $aMelhoramento genetico vegetal 653 $aProducao vegetal 653 $aVariedade 700 1 $aLIMA, S. M. V. 700 1 $aLOPES, M. A. 700 1 $aMACHADO, M. dos S. 700 1 $aMARTINS, M. A. G.
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Biblioteca(s): |
Epagri-Sede. |
Data corrente: |
07/03/2019 |
Data da última atualização: |
07/03/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - A |
Autoria: |
PEREIRA, S. A.; JESUS, G.; CARDOSO, L.; SILVA, B. C.; FERRAREZI, J. V.; FERREIRA, T. H.; STERZELECKI, F.; SUGAI, J.; MARTINS, M.; MOURIÑO, J. L. P. |
Título: |
The intestinal health of silver catfish Rhamdia quelen can be changed by organic acid salts, independent of the chelating minerals. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Aquaculture, Estados Unidos, n. 505, p. 118-126, 2019. |
Idioma: |
Inglês |
Conteúdo: |
Food additives based on organic acids or their salts promote numerous improvements in zootechnical parameters, digestive enzymatic activities, resistance to diseases and intestinal health. This study aimed to evaluate the influence of calcium and sodium chelated to propionic acid on the digestive enzymes activities, intestinal microbial community and histological alterations in the liver and intestine of the silver catfish Rhamdia quelen. Fish with an initial mean weight of 8.43 ± 0.18 g were divided into a control and four treatments, with 15 fish in each replicate, and fed the following supplemented diets for 60 days, four times per day: unsupplemented control, Ca-propionate 0.25% (Ca0.25%), Ca-propionate 1% (Ca1%), Na-propionate 0.25% (Na0.25%) and Na-propionate 1% (Na1%). At the end of the assay, digestive enzymes activities in the gastrointestinal tract (GIT) was not affected by the chelating mineral, nor by its concentration to propionic acid. On the other hand, the most important digestive enzymes for silver catfish were lipase and acid protease. Regarding the intestinal microbial community, fish fed Ca0.25% showed a lower concentration of total heterotrophic bacteria and a higher lactic acid bacteria count, compared to Na1%-supplemented fish, in addition to the maintenance of cordonal features and liver cholestasis. Fish fed a Ca0.25% or Na0.25% supplemented diet presented the best histomorphometry parameters, such as the greatest width and number of villi, a lower number of eosinophilic infiltrates and the absence of lymphocytic infiltrates. The organic acid propionate chelated to calcium at 0.25% improved the microbial composition and intestinal health of silver catfish, with no effects on the liver, the most important organ for depuration, and could be indicated as a feed additive for silver catfish. MenosFood additives based on organic acids or their salts promote numerous improvements in zootechnical parameters, digestive enzymatic activities, resistance to diseases and intestinal health. This study aimed to evaluate the influence of calcium and sodium chelated to propionic acid on the digestive enzymes activities, intestinal microbial community and histological alterations in the liver and intestine of the silver catfish Rhamdia quelen. Fish with an initial mean weight of 8.43 ± 0.18 g were divided into a control and four treatments, with 15 fish in each replicate, and fed the following supplemented diets for 60 days, four times per day: unsupplemented control, Ca-propionate 0.25% (Ca0.25%), Ca-propionate 1% (Ca1%), Na-propionate 0.25% (Na0.25%) and Na-propionate 1% (Na1%). At the end of the assay, digestive enzymes activities in the gastrointestinal tract (GIT) was not affected by the chelating mineral, nor by its concentration to propionic acid. On the other hand, the most important digestive enzymes for silver catfish were lipase and acid protease. Regarding the intestinal microbial community, fish fed Ca0.25% showed a lower concentration of total heterotrophic bacteria and a higher lactic acid bacteria count, compared to Na1%-supplemented fish, in addition to the maintenance of cordonal features and liver cholestasis. Fish fed a Ca0.25% or Na0.25% supplemented diet presented the best histomorphometry parameters, such as the greatest width and nu... Mostrar Tudo |
Palavras-Chave: |
Bacteria; Dietary supplementation; health; Lipase; Organic acids; Protease Intestinal; Silurid fish. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02775naa a2200313 a 4500 001 1128332 005 2019-03-07 008 2019 bl uuuu u00u1 u #d 100 1 $aPEREIRA, S. A. 245 $aThe intestinal health of silver catfish Rhamdia quelen can be changed by organic acid salts, independent of the chelating minerals.$h[electronic resource] 260 $c2019 520 $aFood additives based on organic acids or their salts promote numerous improvements in zootechnical parameters, digestive enzymatic activities, resistance to diseases and intestinal health. This study aimed to evaluate the influence of calcium and sodium chelated to propionic acid on the digestive enzymes activities, intestinal microbial community and histological alterations in the liver and intestine of the silver catfish Rhamdia quelen. Fish with an initial mean weight of 8.43 ± 0.18 g were divided into a control and four treatments, with 15 fish in each replicate, and fed the following supplemented diets for 60 days, four times per day: unsupplemented control, Ca-propionate 0.25% (Ca0.25%), Ca-propionate 1% (Ca1%), Na-propionate 0.25% (Na0.25%) and Na-propionate 1% (Na1%). At the end of the assay, digestive enzymes activities in the gastrointestinal tract (GIT) was not affected by the chelating mineral, nor by its concentration to propionic acid. On the other hand, the most important digestive enzymes for silver catfish were lipase and acid protease. Regarding the intestinal microbial community, fish fed Ca0.25% showed a lower concentration of total heterotrophic bacteria and a higher lactic acid bacteria count, compared to Na1%-supplemented fish, in addition to the maintenance of cordonal features and liver cholestasis. Fish fed a Ca0.25% or Na0.25% supplemented diet presented the best histomorphometry parameters, such as the greatest width and number of villi, a lower number of eosinophilic infiltrates and the absence of lymphocytic infiltrates. The organic acid propionate chelated to calcium at 0.25% improved the microbial composition and intestinal health of silver catfish, with no effects on the liver, the most important organ for depuration, and could be indicated as a feed additive for silver catfish. 653 $aBacteria 653 $aDietary supplementation 653 $ahealth 653 $aLipase 653 $aOrganic acids 653 $aProtease Intestinal 653 $aSilurid fish 700 1 $aJESUS, G. 700 1 $aCARDOSO, L. 700 1 $aSILVA, B. C. 700 1 $aFERRAREZI, J. V. 700 1 $aFERREIRA, T. H. 700 1 $aSTERZELECKI, F. 700 1 $aSUGAI, J. 700 1 $aMARTINS, M. 700 1 $aMOURIÑO, J. L. P. 773 $tAquaculture, Estados Unidos$gn. 505, p. 118-126, 2019.
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