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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
15/10/2003 |
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Data da última atualização: |
15/10/2003 |
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Autoria: |
RODRIGUES, O. D.; NASCIMENTO, E. R. do; TORTELLY, R.; VOLGEL, J.; NASCIMENTO, M. da G. F. do; LIGNON, G. B.; MENDONÇA, G. A. de. |
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Título: |
Lesões causadas em francos de corte pela ação experimental de Mycoplasma gallisepticum e Escherichia coli. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Revista Brasileira de Medicina Veterinária, Rio de Janeiro, v. 23, n. 6, p. 240-243, 2001. |
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Idioma: |
Português |
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Notas: |
Damages caused on broiler chickens by the induced action of Mycoplasma gallisepticum e Escherichia coli. |
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Conteúdo: |
A presente pesquisa teve como objetivo identificar as lesões causadas no sistema respiratório de frangos de corte. em conseqüência de infecção experimental por Mycoplasma gallisepticum (MG), conjuntamente com Escherichia coli (EC ). Em 137 frangos de corte da linhagem Hubbard. machos. com 29 dias de idade, alimentos com razão padronizada, foi confirmada a ausência dos referidos agentes por meio de testes sorológicos e PCR e aos 33 dias de idade as aves foram inoculadas intra-saco aéreo torácico. com culturas de MG e EC. Do 7° ao 14° dias da inoculação, as aves foram sacrificadas, coletando-se sangue, "swab" de traquéia para reafirmação sorológica e fragmentos de órgãos para exames histopatológicos. Como resultado dos exames das aves em estudo. foram constatadas lesões nos pulmões, brônquios, traquéia, saco aéreos e fígado dos exemplares inoculados. destacando-se granulomas nos pulmões, bronquiolite obliterante. Traqueíte, hemorrágica, aerossaculite difusa e necrose hepática focal.
The present study was designed to investigate the lesions causad on the respiratory system of broiler chicker by the induced action of Mycoplasma allisepticum(MG). The absence of such agents was proved through sorology and PCR on 137 Hubbard male, 29 days old, infected by intrathoracie air sac with MG and EC cultures. At the 7º and 14º days post inoculation, the broilers were sacrificed and blood samples, tracheal swabs and organ fragments were collected to sorologic confirmation and histopathological assay. On the results it were observed lesion on the lungs, bronchiae, trachea, air sacs and liver from infected animals by gross and microscopic examinations. Briefely, the lesions were: air sacs cloudness and thickness, granulomatos lungs, obliterating bronchiolitis, hemorragic tracheitis, diffuse airsaculitis and hepatic necrosis. MenosA presente pesquisa teve como objetivo identificar as lesões causadas no sistema respiratório de frangos de corte. em conseqüência de infecção experimental por Mycoplasma gallisepticum (MG), conjuntamente com Escherichia coli (EC ). Em 137 frangos de corte da linhagem Hubbard. machos. com 29 dias de idade, alimentos com razão padronizada, foi confirmada a ausência dos referidos agentes por meio de testes sorológicos e PCR e aos 33 dias de idade as aves foram inoculadas intra-saco aéreo torácico. com culturas de MG e EC. Do 7° ao 14° dias da inoculação, as aves foram sacrificadas, coletando-se sangue, "swab" de traquéia para reafirmação sorológica e fragmentos de órgãos para exames histopatológicos. Como resultado dos exames das aves em estudo. foram constatadas lesões nos pulmões, brônquios, traquéia, saco aéreos e fígado dos exemplares inoculados. destacando-se granulomas nos pulmões, bronquiolite obliterante. Traqueíte, hemorrágica, aerossaculite difusa e necrose hepática focal.
The present study was designed to investigate the lesions causad on the respiratory system of broiler chicker by the induced action of Mycoplasma allisepticum(MG). The absence of such agents was proved through sorology and PCR on 137 Hubbard male, 29 days old, infected by intrathoracie air sac with MG and EC cultures. At the 7º and 14º days post inoculation, the broilers were sacrificed and blood samples, tracheal swabs and organ fragments were collected to sorologic confirmation and histopatholo... Mostrar Tudo |
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Thesagro: |
Ave Domestica; Frango. |
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Thesaurus Nal: |
chickens. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02702naa a2200241 a 4500
001 1624566
005 2003-10-15
008 2001 bl --- 0-- u #d
100 1 $aRODRIGUES, O. D.
245 $aLesões causadas em francos de corte pela ação experimental de Mycoplasma gallisepticum e Escherichia coli.
260 $c2001
500 $aDamages caused on broiler chickens by the induced action of Mycoplasma gallisepticum e Escherichia coli.
520 $aA presente pesquisa teve como objetivo identificar as lesões causadas no sistema respiratório de frangos de corte. em conseqüência de infecção experimental por Mycoplasma gallisepticum (MG), conjuntamente com Escherichia coli (EC ). Em 137 frangos de corte da linhagem Hubbard. machos. com 29 dias de idade, alimentos com razão padronizada, foi confirmada a ausência dos referidos agentes por meio de testes sorológicos e PCR e aos 33 dias de idade as aves foram inoculadas intra-saco aéreo torácico. com culturas de MG e EC. Do 7° ao 14° dias da inoculação, as aves foram sacrificadas, coletando-se sangue, "swab" de traquéia para reafirmação sorológica e fragmentos de órgãos para exames histopatológicos. Como resultado dos exames das aves em estudo. foram constatadas lesões nos pulmões, brônquios, traquéia, saco aéreos e fígado dos exemplares inoculados. destacando-se granulomas nos pulmões, bronquiolite obliterante. Traqueíte, hemorrágica, aerossaculite difusa e necrose hepática focal. The present study was designed to investigate the lesions causad on the respiratory system of broiler chicker by the induced action of Mycoplasma allisepticum(MG). The absence of such agents was proved through sorology and PCR on 137 Hubbard male, 29 days old, infected by intrathoracie air sac with MG and EC cultures. At the 7º and 14º days post inoculation, the broilers were sacrificed and blood samples, tracheal swabs and organ fragments were collected to sorologic confirmation and histopathological assay. On the results it were observed lesion on the lungs, bronchiae, trachea, air sacs and liver from infected animals by gross and microscopic examinations. Briefely, the lesions were: air sacs cloudness and thickness, granulomatos lungs, obliterating bronchiolitis, hemorragic tracheitis, diffuse airsaculitis and hepatic necrosis.
650 $achickens
650 $aAve Domestica
650 $aFrango
700 1 $aNASCIMENTO, E. R. do
700 1 $aTORTELLY, R.
700 1 $aVOLGEL, J.
700 1 $aNASCIMENTO, M. da G. F. do
700 1 $aLIGNON, G. B.
700 1 $aMENDONÇA, G. A. de
773 $tRevista Brasileira de Medicina Veterinária, Rio de Janeiro$gv. 23, n. 6, p. 240-243, 2001.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
14/02/2019 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ALBIERO-JÚNIOR, A.; VENEGAS-GONZÁLEZ, A.; BOTOSSO, P. C.; ROIG, F. A.; CAMARGO, J. L. C.; TOMAZELLO-FILHO, M. |
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Afiliação: |
Alci Albiero-Júnior, USP; Alejandro Venegas-González, Universidad Mayor; PAULO CESAR BOTOSSO, CNPF; Fidel Alejandro Roig, Laboratorio de Dendrocronología e Historia Ambiental, IANIGLA, CCT CONICET; José Luís Campana Camargo, Biological Dynamics of Forest Fragment Project; Mario Tomazello-Filho, USP. |
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Título: |
What is the temporal extension of edge effects on tree growth dynamics?: a dendrochronological approach model using Scleronema micranthum (Ducke) Ducke trees of a fragmented forest in the Central Amazon. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Ecological Indicators, v. 101, p. 133-142, June 2019. |
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DOI: |
10.1016/j.ecolind.2018.12.040 |
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Idioma: |
Inglês |
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Conteúdo: |
Although the Amazon Forest comprises the world?s largest rainforest, providing fundamental ecosystem services to human well-being, vicissitudes imposed by deforestation, climate change, widespread use of fire and development of new infrastructure make the region critically vulnerable to the consequences of the creation of new forest edges. In this forest fragmentation scenario, temporal assessment of edge effects influences throughout the life of the trees become necessary for a better understanding of how species are affected and react when exposed to altered environments. In this study, we evaluated the temporal influence of the edge effect on the growth dynamics of Scleronema micranthum (Ducke) Ducke by tree-ring analysis based on basal area increment and release events. This species is one of the most frequent tree species of terra firme type of forest in Central Amazonia at the Biological Dynamics of Forest Fragment Project (BDFFP) study sites. The results showed that edge effects changed the growth dynamics of the trees for at least 10 years after the disturbance, inducing an 18% reduction in tree growth during this period, and records of increased release events. We concluded that growth rings of edge trees are a valuable bioindicators for evaluating the temporal extent of edge effects, and therefore, they must be considered as relevant ecological indicators of historical environmental changes and forest fragmentation, promoting new insights into the resilience ability of trees when exposed to forest fragmentation processes. MenosAlthough the Amazon Forest comprises the world?s largest rainforest, providing fundamental ecosystem services to human well-being, vicissitudes imposed by deforestation, climate change, widespread use of fire and development of new infrastructure make the region critically vulnerable to the consequences of the creation of new forest edges. In this forest fragmentation scenario, temporal assessment of edge effects influences throughout the life of the trees become necessary for a better understanding of how species are affected and react when exposed to altered environments. In this study, we evaluated the temporal influence of the edge effect on the growth dynamics of Scleronema micranthum (Ducke) Ducke by tree-ring analysis based on basal area increment and release events. This species is one of the most frequent tree species of terra firme type of forest in Central Amazonia at the Biological Dynamics of Forest Fragment Project (BDFFP) study sites. The results showed that edge effects changed the growth dynamics of the trees for at least 10 years after the disturbance, inducing an 18% reduction in tree growth during this period, and records of increased release events. We concluded that growth rings of edge trees are a valuable bioindicators for evaluating the temporal extent of edge effects, and therefore, they must be considered as relevant ecological indicators of historical environmental changes and forest fragmentation, promoting new insights into the resilience abilit... Mostrar Tudo |
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Palavras-Chave: |
Basal area increment; BDFFP; Dendroecologia; Dendroecology; Forest fragmentation; Fragmentação florestal; Incremento da área basal; Release event. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02554naa a2200289 a 4500
001 2106005
005 2019-10-30
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1016/j.ecolind.2018.12.040$2DOI
100 1 $aALBIERO-JÚNIOR, A.
245 $aWhat is the temporal extension of edge effects on tree growth dynamics?$ba dendrochronological approach model using Scleronema micranthum (Ducke) Ducke trees of a fragmented forest in the Central Amazon.$h[electronic resource]
260 $c2019
520 $aAlthough the Amazon Forest comprises the world?s largest rainforest, providing fundamental ecosystem services to human well-being, vicissitudes imposed by deforestation, climate change, widespread use of fire and development of new infrastructure make the region critically vulnerable to the consequences of the creation of new forest edges. In this forest fragmentation scenario, temporal assessment of edge effects influences throughout the life of the trees become necessary for a better understanding of how species are affected and react when exposed to altered environments. In this study, we evaluated the temporal influence of the edge effect on the growth dynamics of Scleronema micranthum (Ducke) Ducke by tree-ring analysis based on basal area increment and release events. This species is one of the most frequent tree species of terra firme type of forest in Central Amazonia at the Biological Dynamics of Forest Fragment Project (BDFFP) study sites. The results showed that edge effects changed the growth dynamics of the trees for at least 10 years after the disturbance, inducing an 18% reduction in tree growth during this period, and records of increased release events. We concluded that growth rings of edge trees are a valuable bioindicators for evaluating the temporal extent of edge effects, and therefore, they must be considered as relevant ecological indicators of historical environmental changes and forest fragmentation, promoting new insights into the resilience ability of trees when exposed to forest fragmentation processes.
653 $aBasal area increment
653 $aBDFFP
653 $aDendroecologia
653 $aDendroecology
653 $aForest fragmentation
653 $aFragmentação florestal
653 $aIncremento da área basal
653 $aRelease event
700 1 $aVENEGAS-GONZÁLEZ, A.
700 1 $aBOTOSSO, P. C.
700 1 $aROIG, F. A.
700 1 $aCAMARGO, J. L. C.
700 1 $aTOMAZELLO-FILHO, M.
773 $tEcological Indicators$gv. 101, p. 133-142, June 2019.
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