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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
21/09/1998 |
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Data da última atualização: |
07/05/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
MELO, I. S. de; SILVA, C. M. M. S.; FAY, E. F.; MONTEIRO, R. P. T.; DENTZIEN, A. F. M. |
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Afiliação: |
ITAMAR SOARES DE MELO, CNPMA; CELIA M. M. SILVA, EMBRAPA - CNPMA; ELISABETH FRANCISCONI FAY, CNPMA; REGINA, R. P. MONTEIRO; ANAMARIA FERREIRA MAYER DENTZIEN, CNPMA. |
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Título: |
Degradation of atrazine by filamentous fungi. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
In: INTERNATIONAL MYCOLOGICAL CONGRESS, 6., 1998, Jerusalem. Abstracts. Jerusalem: [s.n.], 1998. |
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Páginas: |
p.105 |
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Idioma: |
Inglês |
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Conteúdo: |
Atrazine is one of the most widely used herbicide in the world, and is considered to be relatively recalcitrant in subsurface saturated and insaturated zones. Once a soil has been contaminated with s-trazine herbicides, the major pathways of dissipation include the biodegradation. Microorganisms have a finite capacity to recycle synthetic organic molecules, and the classical approach to the demonstration of biodegradability has been the enrichment culture method, with the test substrate serving as substrate. Two types of soil (natural forest and a soil with previous history of application of atrazine) were supplemented with atrazine (70,350 and 700 ug/ml-1) and incubated at 28oC for 21 days. A total of 33 fungi were isolated in culture medium containing atrazine. These strains were grown in liquid medium supplemented with atrazine in order to evaluate the capacity of degradation. These strains belonging to the genus Penicillium, Eupenicillium, Dematiacium and Trichoderma grew faster, producing greater amount of biomass using atrazine as substrate. The quantitative determination of the residues was carried out by GC after the extraction and purification of the samples with ethyl acetate. All fungal strains degraded atrazine. P. crustacium degraded more than 90% of atrazine and it grows in high concentration (3.000 ppm) of the herbicide. Also, one fungal strain produced high activity of intracellular and extracellular enzymes when atrazine was added. |
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Palavras-Chave: |
Filamentous fung. |
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Thesaurus Nal: |
atrazine; degradation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/197056/1/1998RA-Melo-Degradation.pdf
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Marc: |
LEADER 02079nam a2200205 a 4500
001 1012986
005 2019-05-07
008 1998 bl uuuu u00u1 u #d
100 1 $aMELO, I. S. de
245 $aDegradation of atrazine by filamentous fungi.$h[electronic resource]
260 $aIn: INTERNATIONAL MYCOLOGICAL CONGRESS, 6., 1998, Jerusalem. Abstracts. Jerusalem: [s.n.]$c1998
300 $ap.105
520 $aAtrazine is one of the most widely used herbicide in the world, and is considered to be relatively recalcitrant in subsurface saturated and insaturated zones. Once a soil has been contaminated with s-trazine herbicides, the major pathways of dissipation include the biodegradation. Microorganisms have a finite capacity to recycle synthetic organic molecules, and the classical approach to the demonstration of biodegradability has been the enrichment culture method, with the test substrate serving as substrate. Two types of soil (natural forest and a soil with previous history of application of atrazine) were supplemented with atrazine (70,350 and 700 ug/ml-1) and incubated at 28oC for 21 days. A total of 33 fungi were isolated in culture medium containing atrazine. These strains were grown in liquid medium supplemented with atrazine in order to evaluate the capacity of degradation. These strains belonging to the genus Penicillium, Eupenicillium, Dematiacium and Trichoderma grew faster, producing greater amount of biomass using atrazine as substrate. The quantitative determination of the residues was carried out by GC after the extraction and purification of the samples with ethyl acetate. All fungal strains degraded atrazine. P. crustacium degraded more than 90% of atrazine and it grows in high concentration (3.000 ppm) of the herbicide. Also, one fungal strain produced high activity of intracellular and extracellular enzymes when atrazine was added.
650 $aatrazine
650 $adegradation
653 $aFilamentous fung
700 1 $aSILVA, C. M. M. S.
700 1 $aFAY, E. F.
700 1 $aMONTEIRO, R. P. T.
700 1 $aDENTZIEN, A. F. M.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
18/12/2014 |
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Data da última atualização: |
19/12/2014 |
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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: |
VENTURINI, G. C.; CRUZ, V. A. R. da; ROSA, J. O.; BALDI, F.; EL FARO, L.; LEDUR, M. C.; PEIXOTO, J. de O.; MUNARI, D. P. |
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Afiliação: |
GUILHERME COSTA VENTURINI, Faculdade de Ciências Agrárias e Veterinárias. UNESP.; VALDECY APARECIDA ROCHA DA CRUZ, Faculdade de Ciências Agrárias e Veterinárias. UNESP.; JAQUELINE OLIVEIRA ROSA, Faculdade de Ciências Agrárias e Veterinárias. UNESP.; FERNANDO SEBASTIÁN BALDI REY, Faculdade de Ciências Agrárias e Veterinárias. UNESP.; LENIRA EL FARO ZADRA, Instituto de Zootecnia. Estação Experimental de Sertãozinho; MONICA CORREA LEDUR, CNPSA; JANE DE OLIVEIRA PEIXOTO, CNPSA; DANÍSIO PRADO MUNARI, Faculdade de Ciências Agrárias e Veterinárias. UNESP. |
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Título: |
Genetic and phenotypic parameters of carcass and organ traits of broiler chickens. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Genetics and Molecular Research, Ribeirão Preto, v. 13, n. 4, p. 10294-10300. |
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DOI: |
http://dx.doi.org/10.4238/2014 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to estimate the genetic and environmental parameters for carcass, carcass part, and organ weights in a paternal strain of broiler chickens that was selected mainly for body weight at 42 days of age (BW42) to provide support for poultry genetic improvement programs. A total of 1448 chickens were used that resulted from the expansion of a pure paternal strain named TT, which was developed by Embrapa Suínos e Aves. The following weights were evaluated: BW42, chilled carcass, wing, drumstick meat, thigh meat, breast meat, breast fillet, back, liver, heart (HRT), and gizzard (GIZ). The variance component was estimated by the restricted maximum likelihood method using a multi-trait animal model. The general model included the additive genetic and residual random effects and the fixed effect of the sex-hatch group (10 levels). The heritability estimates ranged from 0.27 ± 0.06 for HRT to 0.44 ± 0.08 for GIZ. These results indicated that all the traits have enough additive genetic variability to respond to selection. The genetic correlation estimates between BW42 and the carcass and carcass part weights were high and positive. However, the genetic correlation estimates between BW42 and organ weights were low. In this population, the carcass traits might respond indirectly to selection applied to BW42. It can be concluded that selection to increase BW42 is not effective in improving broiler organ weight. Therefore, to obtain suitable genetic improvement for these traits, the selection indexes for broilers should include organ weight-based criteria. MenosThe objective of this study was to estimate the genetic and environmental parameters for carcass, carcass part, and organ weights in a paternal strain of broiler chickens that was selected mainly for body weight at 42 days of age (BW42) to provide support for poultry genetic improvement programs. A total of 1448 chickens were used that resulted from the expansion of a pure paternal strain named TT, which was developed by Embrapa Suínos e Aves. The following weights were evaluated: BW42, chilled carcass, wing, drumstick meat, thigh meat, breast meat, breast fillet, back, liver, heart (HRT), and gizzard (GIZ). The variance component was estimated by the restricted maximum likelihood method using a multi-trait animal model. The general model included the additive genetic and residual random effects and the fixed effect of the sex-hatch group (10 levels). The heritability estimates ranged from 0.27 ± 0.06 for HRT to 0.44 ± 0.08 for GIZ. These results indicated that all the traits have enough additive genetic variability to respond to selection. The genetic correlation estimates between BW42 and the carcass and carcass part weights were high and positive. However, the genetic correlation estimates between BW42 and organ weights were low. In this population, the carcass traits might respond indirectly to selection applied to BW42. It can be concluded that selection to increase BW42 is not effective in improving broiler organ weight. Therefore, to obtain suitable genetic improvemen... Mostrar Tudo |
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Palavras-Chave: |
Carcass; Chicken breast; Peito de frango; Qualidade de filé. |
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Thesagro: |
Carcaça; Frango de corte; Genética animal. |
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Thesaurus NAL: |
Animal genetics; Broiler chickens; Fillet quality. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/114147/1/final7769.pdf
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Marc: |
LEADER 02579naa a2200337 a 4500
001 2003219
005 2014-12-19
008 2014 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.4238/2014$2DOI
100 1 $aVENTURINI, G. C.
245 $aGenetic and phenotypic parameters of carcass and organ traits of broiler chickens.$h[electronic resource]
260 $c2014
520 $aThe objective of this study was to estimate the genetic and environmental parameters for carcass, carcass part, and organ weights in a paternal strain of broiler chickens that was selected mainly for body weight at 42 days of age (BW42) to provide support for poultry genetic improvement programs. A total of 1448 chickens were used that resulted from the expansion of a pure paternal strain named TT, which was developed by Embrapa Suínos e Aves. The following weights were evaluated: BW42, chilled carcass, wing, drumstick meat, thigh meat, breast meat, breast fillet, back, liver, heart (HRT), and gizzard (GIZ). The variance component was estimated by the restricted maximum likelihood method using a multi-trait animal model. The general model included the additive genetic and residual random effects and the fixed effect of the sex-hatch group (10 levels). The heritability estimates ranged from 0.27 ± 0.06 for HRT to 0.44 ± 0.08 for GIZ. These results indicated that all the traits have enough additive genetic variability to respond to selection. The genetic correlation estimates between BW42 and the carcass and carcass part weights were high and positive. However, the genetic correlation estimates between BW42 and organ weights were low. In this population, the carcass traits might respond indirectly to selection applied to BW42. It can be concluded that selection to increase BW42 is not effective in improving broiler organ weight. Therefore, to obtain suitable genetic improvement for these traits, the selection indexes for broilers should include organ weight-based criteria.
650 $aAnimal genetics
650 $aBroiler chickens
650 $aFillet quality
650 $aCarcaça
650 $aFrango de corte
650 $aGenética animal
653 $aCarcass
653 $aChicken breast
653 $aPeito de frango
653 $aQualidade de filé
700 1 $aCRUZ, V. A. R. da
700 1 $aROSA, J. O.
700 1 $aBALDI, F.
700 1 $aEL FARO, L.
700 1 $aLEDUR, M. C.
700 1 $aPEIXOTO, J. de O.
700 1 $aMUNARI, D. P.
773 $tGenetics and Molecular Research, Ribeirão Preto$gv. 13, n. 4, p. 10294-10300.
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Embrapa Suínos e Aves (CNPSA) |
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