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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
15/03/2010 |
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Data da última atualização: |
20/07/2011 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ADESOGAN, A. T.; PEDROSO, A. de F.; QUEIROZ, O. C. M.; WILLIAMS, S. K. |
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Afiliação: |
A. T. ADESOGAN, UNIVERSITY OF FLORIDA/GAINSVILLE; ANDRE DE FARIA PEDROSO, CPPSE; O. C. M. QUEIROZ, UNIVERSITY OF FLORIDA/GAINSVILLE; S. K. WILLIAMS, UNIVERSITY OF FLORIDA/GAINSVILLE. |
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Título: |
Using bacterial inoculants to control the growth of E. coli O157:H7 in maize silages under anaerobic and aerobic conditions. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: FAO/IAEA SYMPOSIUM ON SUSTAINABLE IMPROVEMENT OF ANIMAL PRODUCTION AND HEALTH, 2009, Vienna. Proceedings... Vienna: FAO/IAEA, 2009. |
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Idioma: |
Português |
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Conteúdo: |
The aim was to determine if bacterial inoculants could eliminate E. coli O157:H7 (ECOL) in contaminated corn silages and if inoculants transferred antibacterial activity to silages. Chopped corn forage was ensiled in triplicate after treatment with:1) distilled water (control); 2) 5 x 105 cfu/g of ECOL (EC); 3) EC and 1 x 106 cfu/g of Pediococcus pentosaceus and Propionibacterium freudenreichii (EC+BII); 4) EC and 1 x 106 cfu/g of Lactobacillus buchneri (LB; EC+LB); 5) EC and 1 x 106 cfu/g of LB and P. pentosaceus (EC+B500). Silos were opened after 3, 7, 31, and 82 d and analyzed for pH and ECOL counts as well as VFA, lactate, and aerobic stability on d 82. By d 3, all silages had pH was <4 (SE=0.33; p=1) and pH did not increase subsequently; therefore ECOL was not detected in any silage. The Kirby-Bauer disc diffusion test showed that all pure cultures of inoculants had pH-independent antibacterial activity against ECOL but inoculated silages did not, suggesting that ECOL elimination was mediated by pH reduction. Inoculation with LB resulted in less lactate (SE=0.31; p<0.05), more acetate (SE=0.35; p<0.05), and greater aerobic stability (SE=7.1; p<0.05) versus control. Day-82 silages were reinoculated with EC at silo opening (immediate) or after 144 h of exposure (delay) and ECOL were enumerated 24 h later. All immediately reinoculated silages had low pH values (<4) and no ECOL 24 h later. Control, EC, and EC+BII silages reinoculated after the delay had relatively high pH values (4.71, 5.67, and 6.03) (SE=0.74; p<0.05) and ECOL counts (2.87, 6.73, and 6.87 log cfu/g) (SE=1.4; p<0.05), whereas those treated with LB had low pH values (<4) and undetectable (EC+B500) or low ECOL counts (1.96, cfu/g; EC+LB). Inoculants did not enhance elimination of ECOL during ensiling, but L. buchneri inoculants increased stability and eliminated or inhibited ECOL in aerobically exposed silages. MenosThe aim was to determine if bacterial inoculants could eliminate E. coli O157:H7 (ECOL) in contaminated corn silages and if inoculants transferred antibacterial activity to silages. Chopped corn forage was ensiled in triplicate after treatment with:1) distilled water (control); 2) 5 x 105 cfu/g of ECOL (EC); 3) EC and 1 x 106 cfu/g of Pediococcus pentosaceus and Propionibacterium freudenreichii (EC+BII); 4) EC and 1 x 106 cfu/g of Lactobacillus buchneri (LB; EC+LB); 5) EC and 1 x 106 cfu/g of LB and P. pentosaceus (EC+B500). Silos were opened after 3, 7, 31, and 82 d and analyzed for pH and ECOL counts as well as VFA, lactate, and aerobic stability on d 82. By d 3, all silages had pH was <4 (SE=0.33; p=1) and pH did not increase subsequently; therefore ECOL was not detected in any silage. The Kirby-Bauer disc diffusion test showed that all pure cultures of inoculants had pH-independent antibacterial activity against ECOL but inoculated silages did not, suggesting that ECOL elimination was mediated by pH reduction. Inoculation with LB resulted in less lactate (SE=0.31; p<0.05), more acetate (SE=0.35; p<0.05), and greater aerobic stability (SE=7.1; p<0.05) versus control. Day-82 silages were reinoculated with EC at silo opening (immediate) or after 144 h of exposure (delay) and ECOL were enumerated 24 h later. All immediately reinoculated silages had low pH values (<4) and no ECOL 24 h later. Control, EC, and EC+BII silages reinoculated after the delay had relatively high pH v... Mostrar Tudo |
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Palavras-Chave: |
Antibacterial activity; E. coli; Inoculant; Maize silage. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/38056/1/PROCI-2009.00383.pdf
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Marc: |
LEADER 02607nam a2200193 a 4500
001 1661221
005 2011-07-20
008 2009 bl uuuu u00u1 u #d
100 1 $aADESOGAN, A. T.
245 $aUsing bacterial inoculants to control the growth of E. coli O157$bH7 in maize silages under anaerobic and aerobic conditions.
260 $aIn: FAO/IAEA SYMPOSIUM ON SUSTAINABLE IMPROVEMENT OF ANIMAL PRODUCTION AND HEALTH, 2009, Vienna. Proceedings... Vienna: FAO/IAEA$c2009
520 $aThe aim was to determine if bacterial inoculants could eliminate E. coli O157:H7 (ECOL) in contaminated corn silages and if inoculants transferred antibacterial activity to silages. Chopped corn forage was ensiled in triplicate after treatment with:1) distilled water (control); 2) 5 x 105 cfu/g of ECOL (EC); 3) EC and 1 x 106 cfu/g of Pediococcus pentosaceus and Propionibacterium freudenreichii (EC+BII); 4) EC and 1 x 106 cfu/g of Lactobacillus buchneri (LB; EC+LB); 5) EC and 1 x 106 cfu/g of LB and P. pentosaceus (EC+B500). Silos were opened after 3, 7, 31, and 82 d and analyzed for pH and ECOL counts as well as VFA, lactate, and aerobic stability on d 82. By d 3, all silages had pH was <4 (SE=0.33; p=1) and pH did not increase subsequently; therefore ECOL was not detected in any silage. The Kirby-Bauer disc diffusion test showed that all pure cultures of inoculants had pH-independent antibacterial activity against ECOL but inoculated silages did not, suggesting that ECOL elimination was mediated by pH reduction. Inoculation with LB resulted in less lactate (SE=0.31; p<0.05), more acetate (SE=0.35; p<0.05), and greater aerobic stability (SE=7.1; p<0.05) versus control. Day-82 silages were reinoculated with EC at silo opening (immediate) or after 144 h of exposure (delay) and ECOL were enumerated 24 h later. All immediately reinoculated silages had low pH values (<4) and no ECOL 24 h later. Control, EC, and EC+BII silages reinoculated after the delay had relatively high pH values (4.71, 5.67, and 6.03) (SE=0.74; p<0.05) and ECOL counts (2.87, 6.73, and 6.87 log cfu/g) (SE=1.4; p<0.05), whereas those treated with LB had low pH values (<4) and undetectable (EC+B500) or low ECOL counts (1.96, cfu/g; EC+LB). Inoculants did not enhance elimination of ECOL during ensiling, but L. buchneri inoculants increased stability and eliminated or inhibited ECOL in aerobically exposed silages.
653 $aAntibacterial activity
653 $aE. coli
653 $aInoculant
653 $aMaize silage
700 1 $aPEDROSO, A. de F.
700 1 $aQUEIROZ, O. C. M.
700 1 $aWILLIAMS, S. K.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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| Registros recuperados : 10 | |
| 2. |  | PEDROSO, A. de F.; ADESOGAN, A. T.; QUEIROZ, O. C. M.; WILLIAMS, S. K. Control of E. coli O157:H7 in corn silage with inoculants under anaerobic and aerobic conditions. Journal of Animal Science, v.87, E-Suppl. 2; Journal of Dairy Science, v. 92, E-Suppl. 1, p. 179-180, April 2009.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
|    |
| 4. | | PALHA, R. F.; QUEIROZ, O. A; ALVES, G. C.; REIS, V. M. Efeito do tratamento térmico e inoculação de bactérias diazotróficas em mudas pré-brotadas de duas variedades de cana-de-açúcar. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 32.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 16.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 14.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 11., FERTBIO 2016. Goiânia. Rumo aos novos desafios: anais. Goiânia: UFG, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 6. | | NOGUEIRA, L. C.; SANTOS, S. G. dos; PEREIRA, W.; PALHA, R. F.; QUEIROZ, O.; REIS, V. M. Atividade de nitrato redutase em folhas e raízes de cana-de-açucar inoculada com bactérias diazotróficas. In: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 14., 2014, Seropédica. Ciência e tecnologia para o desenvolvimento social: caderno de resumos. Seropédica: Embrapa Agrobiologia, 2014.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 7. | | ARRIOLA, K. G.; QUEIROZ, O. C. M.; ROMERO, J. J.; CASPER, D.; MUNIZ, E. N.; HAMIE, J.; ADESOGAN, A. T. Effect of microbial inoculants on the quality and aerobic stability of bermudagrass round-bale haylage Journal of Dairy Science,v. 98, p.478?48, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 8. | | ARRIOLA, K.; QUEIROZ, O.; ROMEROM J.; KIVIPELTO, J.; MUNIZ, E. N.; HAMIE, J.; ZARATE, M.; PARANHOS, L.; ADESOGAN, A. Effect of microbial inoculants on the quality and stanbility of bermudagrass haylage. In: INTERNATIONAL SILAGE CONFERENCE, 17., 2012, Finland. Anais... Finland: ISC, 2012.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 9. | | SOARES, R. M.; GODOY, C. V.; MEYER, M. C.; COSTAMILAN, L. M.; MEDEIROS, F. C. L. de; BORGES, E. P.; CAMPOS, H. D.; MULLER.; QUEIROZ, O. A.; MARTINS, M. C. Ferrugem-asiática da soja no Brasil na safra 2020/2021. Plantio direto, v. 181, p. 13-19, 2021.| Tipo: Artigo de Divulgação na Mídia |
| Biblioteca(s): Embrapa Trigo. |
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| 10. | | SOARES, R. M.; GODOY, C. V.; MEYER, M. C.; COSTAMILAN, L. M.; MEDEIROS, F. C. L. de; BORGES, E. P.; CAMPOS, H. D.; MULLER.; QUEIROZ, O. A.; MARTINS, M. C. Ferrugem-asiática da soja no Brasil na safra 2020/2021. Plantio direto, v. 181, p. 13-19, 2021.| Tipo: Artigo de Divulgação na Mídia |
| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 10 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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