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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
20/07/2011 |
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Data da última atualização: |
01/07/2016 |
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Autoria: |
BEZERRA JUNIOR, P. S.; SANTOS, A. da S.; BANDARRA, P. M.; PEDROSO, P. M. O.; PAVARINI, S. P.; SPANAMBERG, A.; FERREIRO, L.; DRIEMEIER, D. |
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Título: |
Intoxicação experimental por Aspergillus clavatus em ovinos. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 29, n. 3, p. 205-210, mar., 2009. |
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Idioma: |
Português |
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Conteúdo: |
Resumo: Descreve-se a reprodução experimental de doença neurológica em ovinos através da administração de bagaço de malte (resíduo cervejaria) contaminado com Aspergillus clavatus. Esse resíduo de cervejaria, cujas amostras revelaram cultura pura de A. clavatus, estava sendo utilizado em duas propriedades, onde ocorreram surtos da doença em bovinos. Os sinais clínicos iniciaram-se cerca de 2 a 6 dias após a administração do subproduto ou da cultura e a evolução clínica foi de 1,5 a 12 dias. Os sinais clínicos, que foram predominantemente locomotores e respiratórios, incluíram tremores musculares, hiperestesia, taquipnéia progressiva, rigidez de membros pélvicos (mais evidente à locomoção), fraqueza dos posteriores e decúbito. Um ovino também apresentou apoio ocasional sobre os boletos dos membros pélvicos. As anormalidades locomotoras e tremores eram intensificados pelo exercício. Entretanto, em 6 dos 7 ovinos, o apetite e a dipsia eram mantidas até próximo à morte ou eutanásia. O principal achado histológico consistia de degeneração e necrose neuronal cromatolítica em núcleos nervosos específicos do tronco encefálico, cornos ventrais da medula espinhal e gânglios espinhais, trigeminal, estrelado e celíaco. Três ovinos também apresentaram degeneração e necrose leves em músculos dos membros pélvicos e torácicos.
[Experimental poisoning by Aspergillus clavatus in sheep].
Abstract: This paper describes the experimental reproduction of a neurological condition in sheep by the administration of a beer by-product contaminated with Aspergillus clavatus. Samples of this by-product, in which pure cultures of A. clavatus grew, originated from two farms where outbreaks of A. clavatus poisoning in cattle had occurred. The onset of symptomatology was 2 to 6 days after dosage with the contaminated beer by-product or pure A. clavatus culture. The clinical course lasted from one and a half to 12 days. Clinical signs were predominantly of locomotor and respiratory nature and included muscle tremors, hyperesthesia, and progressive tachypnea, rigidity of the pelvic limbs, posterior weakness, and recumbency. One sheep also showed occasional knuckling of fetlocks of the hind limbs. Gait abnormalities and tremors were more pronounced after exercise. In 6 of 7 sheep, appetite and dypsia were maintained until close to death or euthanasia. The main histological findings consisted of chromatolytic neuronal degeneration and necrosis in selected nuclei of the brain stem, the ventral horn of the spinal cord and the spinal, trigeminal, stellate and celiac ganglions. Three sheep also presented slight degenerative and necrotic changes in muscles of the pelvic and thoracic limbs. MenosResumo: Descreve-se a reprodução experimental de doença neurológica em ovinos através da administração de bagaço de malte (resíduo cervejaria) contaminado com Aspergillus clavatus. Esse resíduo de cervejaria, cujas amostras revelaram cultura pura de A. clavatus, estava sendo utilizado em duas propriedades, onde ocorreram surtos da doença em bovinos. Os sinais clínicos iniciaram-se cerca de 2 a 6 dias após a administração do subproduto ou da cultura e a evolução clínica foi de 1,5 a 12 dias. Os sinais clínicos, que foram predominantemente locomotores e respiratórios, incluíram tremores musculares, hiperestesia, taquipnéia progressiva, rigidez de membros pélvicos (mais evidente à locomoção), fraqueza dos posteriores e decúbito. Um ovino também apresentou apoio ocasional sobre os boletos dos membros pélvicos. As anormalidades locomotoras e tremores eram intensificados pelo exercício. Entretanto, em 6 dos 7 ovinos, o apetite e a dipsia eram mantidas até próximo à morte ou eutanásia. O principal achado histológico consistia de degeneração e necrose neuronal cromatolítica em núcleos nervosos específicos do tronco encefálico, cornos ventrais da medula espinhal e gânglios espinhais, trigeminal, estrelado e celíaco. Três ovinos também apresentaram degeneração e necrose leves em músculos dos membros pélvicos e torácicos.
[Experimental poisoning by Aspergillus clavatus in sheep].
Abstract: This paper describes the experimental reproduction of a neurological condition in sheep by the a... Mostrar Tudo |
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Palavras-Chave: |
Bagaço de malte; Cromatólise neuronal. |
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Thesagro: |
Intoxicação; Ovino. |
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Thesaurus Nal: |
Aspergillus clavatus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03530naa a2200265 a 4500
001 1896474
005 2016-07-01
008 2009 bl uuuu u00u1 u #d
100 1 $aBEZERRA JUNIOR, P. S.
245 $aIntoxicação experimental por Aspergillus clavatus em ovinos.$h[electronic resource]
260 $c2009
520 $aResumo: Descreve-se a reprodução experimental de doença neurológica em ovinos através da administração de bagaço de malte (resíduo cervejaria) contaminado com Aspergillus clavatus. Esse resíduo de cervejaria, cujas amostras revelaram cultura pura de A. clavatus, estava sendo utilizado em duas propriedades, onde ocorreram surtos da doença em bovinos. Os sinais clínicos iniciaram-se cerca de 2 a 6 dias após a administração do subproduto ou da cultura e a evolução clínica foi de 1,5 a 12 dias. Os sinais clínicos, que foram predominantemente locomotores e respiratórios, incluíram tremores musculares, hiperestesia, taquipnéia progressiva, rigidez de membros pélvicos (mais evidente à locomoção), fraqueza dos posteriores e decúbito. Um ovino também apresentou apoio ocasional sobre os boletos dos membros pélvicos. As anormalidades locomotoras e tremores eram intensificados pelo exercício. Entretanto, em 6 dos 7 ovinos, o apetite e a dipsia eram mantidas até próximo à morte ou eutanásia. O principal achado histológico consistia de degeneração e necrose neuronal cromatolítica em núcleos nervosos específicos do tronco encefálico, cornos ventrais da medula espinhal e gânglios espinhais, trigeminal, estrelado e celíaco. Três ovinos também apresentaram degeneração e necrose leves em músculos dos membros pélvicos e torácicos. [Experimental poisoning by Aspergillus clavatus in sheep]. Abstract: This paper describes the experimental reproduction of a neurological condition in sheep by the administration of a beer by-product contaminated with Aspergillus clavatus. Samples of this by-product, in which pure cultures of A. clavatus grew, originated from two farms where outbreaks of A. clavatus poisoning in cattle had occurred. The onset of symptomatology was 2 to 6 days after dosage with the contaminated beer by-product or pure A. clavatus culture. The clinical course lasted from one and a half to 12 days. Clinical signs were predominantly of locomotor and respiratory nature and included muscle tremors, hyperesthesia, and progressive tachypnea, rigidity of the pelvic limbs, posterior weakness, and recumbency. One sheep also showed occasional knuckling of fetlocks of the hind limbs. Gait abnormalities and tremors were more pronounced after exercise. In 6 of 7 sheep, appetite and dypsia were maintained until close to death or euthanasia. The main histological findings consisted of chromatolytic neuronal degeneration and necrosis in selected nuclei of the brain stem, the ventral horn of the spinal cord and the spinal, trigeminal, stellate and celiac ganglions. Three sheep also presented slight degenerative and necrotic changes in muscles of the pelvic and thoracic limbs.
650 $aAspergillus clavatus
650 $aIntoxicação
650 $aOvino
653 $aBagaço de malte
653 $aCromatólise neuronal
700 1 $aSANTOS, A. da S.
700 1 $aBANDARRA, P. M.
700 1 $aPEDROSO, P. M. O.
700 1 $aPAVARINI, S. P.
700 1 $aSPANAMBERG, A.
700 1 $aFERREIRO, L.
700 1 $aDRIEMEIER, D.
773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 29, n. 3, p. 205-210, mar., 2009.
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Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
15/09/2008 |
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Data da última atualização: |
18/09/2015 |
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Autoria: |
TONDOH, J. E.; KONÉ, A. W.; ANGUI, P.; BERNARHD-REVERSAT, F.; LORANGER-MERCIRIS, G. |
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Título: |
Short-term legume cover crop fallows improve soil quality in humid savanna areas of Côte d'Ivoire. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
Although many studies have emphasized the prominent role of legume cover crops in soil fertility
and maize yield increase in sub saharian Africa, a threshold period for significant soil quality
replenishment, which is a crucial indicator of sustainable agriculture, is not clearly konwn. The
study aims at identifying indicators of rapid changes of soil quality, in the context of agronomic
valorisation of humid savannas areas of Côte d?Ivoire. Soil chemical and biological parameters
were evaluated at 6 and 12 months following legume cover crops (Mucuna pruriens, Lablab
purpureus, Pueraria phaseloides) establishment and continuous maize cropping in humid
savanna areas of Côte d?Ivoire. A principal component analysis (ACP) showed a significant
(P<0.001) segregation within treatments at 6 and 12 months after experimental set-up. Cation
exchange capacity, microbial biomass carbon, exchangeable bases, and Ca content were found
to be indicative of differences between treatments during the first 6 months of trial. More soil
variables (microbial biomass carbon, microbial biomass carbon/organic carbon ratio, earthworm
density, organic carbon, total N, carbon mineralization, Mg content and exchangeable bases)
were responsible of the segregation between legume cover crops and continuous maize cropping,
with or without fertilizer treatments, after 12 months. The study also revealed the effectiveness of
legume cover crops in improving short-term soil quality parameters. Moreover, the significant
increase in earthworm density, under legume treatments on the one hand, and the significant
correlation with some variable (total polyphenols, Ca and K contents) and index (N/P ratio) of
plant residues quality on the other hand, showed the importance of this organisms as potential
indicators of soil quality. MenosAlthough many studies have emphasized the prominent role of legume cover crops in soil fertility
and maize yield increase in sub saharian Africa, a threshold period for significant soil quality
replenishment, which is a crucial indicator of sustainable agriculture, is not clearly konwn. The
study aims at identifying indicators of rapid changes of soil quality, in the context of agronomic
valorisation of humid savannas areas of Côte d?Ivoire. Soil chemical and biological parameters
were evaluated at 6 and 12 months following legume cover crops (Mucuna pruriens, Lablab
purpureus, Pueraria phaseloides) establishment and continuous maize cropping in humid
savanna areas of Côte d?Ivoire. A principal component analysis (ACP) showed a significant
(P<0.001) segregation within treatments at 6 and 12 months after experimental set-up. Cation
exchange capacity, microbial biomass carbon, exchangeable bases, and Ca content were found
to be indicative of differences between treatments during the first 6 months of trial. More soil
variables (microbial biomass carbon, microbial biomass carbon/organic carbon ratio, earthworm
density, organic carbon, total N, carbon mineralization, Mg content and exchangeable bases)
were responsible of the segregation between legume cover crops and continuous maize cropping,
with or without fertilizer treatments, after 12 months. The study also revealed the effectiveness of
legume cover crops in improving short-term soil quality parameters. Moreover, the signi... Mostrar Tudo |
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Thesaurus NAL: |
soil quality. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02618naa a2200181 a 4500
001 1314810
005 2015-09-18
008 2008 bl uuuu u00u1 u #d
100 1 $aTONDOH, J. E.
245 $aShort-term legume cover crop fallows improve soil quality in humid savanna areas of Côte d'Ivoire.
260 $c2008
520 $aAlthough many studies have emphasized the prominent role of legume cover crops in soil fertility and maize yield increase in sub saharian Africa, a threshold period for significant soil quality replenishment, which is a crucial indicator of sustainable agriculture, is not clearly konwn. The study aims at identifying indicators of rapid changes of soil quality, in the context of agronomic valorisation of humid savannas areas of Côte d?Ivoire. Soil chemical and biological parameters were evaluated at 6 and 12 months following legume cover crops (Mucuna pruriens, Lablab purpureus, Pueraria phaseloides) establishment and continuous maize cropping in humid savanna areas of Côte d?Ivoire. A principal component analysis (ACP) showed a significant (P<0.001) segregation within treatments at 6 and 12 months after experimental set-up. Cation exchange capacity, microbial biomass carbon, exchangeable bases, and Ca content were found to be indicative of differences between treatments during the first 6 months of trial. More soil variables (microbial biomass carbon, microbial biomass carbon/organic carbon ratio, earthworm density, organic carbon, total N, carbon mineralization, Mg content and exchangeable bases) were responsible of the segregation between legume cover crops and continuous maize cropping, with or without fertilizer treatments, after 12 months. The study also revealed the effectiveness of legume cover crops in improving short-term soil quality parameters. Moreover, the significant increase in earthworm density, under legume treatments on the one hand, and the significant correlation with some variable (total polyphenols, Ca and K contents) and index (N/P ratio) of plant residues quality on the other hand, showed the importance of this organisms as potential indicators of soil quality.
650 $asoil quality
700 1 $aKONÉ, A. W.
700 1 $aANGUI, P.
700 1 $aBERNARHD-REVERSAT, F.
700 1 $aLORANGER-MERCIRIS, G.
773 $tIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.
Download
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Embrapa Florestas (CNPF) |
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