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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
14/06/2016 |
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Data da última atualização: |
14/06/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CORBELLINI, L. G.; BIANCO JÚNIOR, A.; COSTA, E. de F.; DUARTE, A. S. R.; ALBUQUERQUE, E. R.; KICH, J. D.; CARDOSO, M.; NAUTA, M. |
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Afiliação: |
LUÍS GUSTAVO CORBELLINI, UFRGS/Faculdade de Veterinária, Departamento de Medicina Animal; ALFREDO BIANCO JÚNIOR, MAPA; EDUARDO DE FREITAS COSTA, UFRGS/Faculdade de Veterinária, Departamento de Medicina Animal; ANA SOFIA RIBEIRO DUARTE, Technical University of Denmark; ELENITA RUTTSCHEIDT ALBUQUERQUE, MAPA; JALUSA DEON KICH, CNPSA; MARISA CARDOSO, UFRGS/Faculdade de Veterinária, Departamento de Medicina Animal; MAARTEN NAUTA, Technical University of Denmark. |
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Título: |
Effect of slaughterhouse and day of sample on the probability of a pig carcass being Salmonella-positive according to the Enterobacteriaceae count in the largest Brazilian pork production region. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
International Journal of Food Microbiology, v. 228, p. 58-66, 2016. |
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DOI: |
http://dx.doi.org/10.1016/j.ijfoodmicro.2016.03.030 |
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Idioma: |
Inglês |
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Conteúdo: |
Sources of contamination of carcasses during slaughter include infected pigs as well as environmentally related sources. There are many microbial indicators that can be used in the processing of food to assess food hygiene and the safety of food processing. The presence of some microbial indicators can be viewed as a result of direct or indirect contamination of a food with fecal material. The presence of Enterobacteriaceae is often used as a hygiene indicator, as they are found both in the environment and in the intestine of warm-blooded animals. An association between Salmonella isolation and Enterobacteriaceae count (EC) on pre-chill carcasses has been described, however the impact of slaughterhouse and the day of sampling on the occurrence of Salmonella has not been previously investigated. To this end, mixed logistic regressions (MLRs) with random effects and fixed slopes were performed to assess the change in EC and its correlation with Salmonella occurrence using two data sets. The first describes the EC and Salmonella isolation in 60 pork carcasses in one slaughterhouse sampled at 11 different slaughter steps, including the carcass as a random effect. The second describes the EC and Salmonella isolation on 1150 pre-chill carcasses sampled in 13 slaughterhouses over 230 sampling days, and the model combined two random intercepts, slaughterhouse and date of sampling nested with slaughterhouse (day/slaughterhouse). Statistically significant associations (p b 0.0001) between the log of the EC and Salmonella occurrence were found in all models. Nevertheless, although a strong association was found between Enterobacteriaceae and Salmonella contamination in pork carcasses, this association was not constant, given that there was a high variation in the probability of a carcass being positive for Salmonella according to the EC mainly between days of samples. The effect of the day of sampling on Salmonella prevalence was so large that the predictive value of the EC count for Salmonella isolation on a daily basiswas compromised. It is possible that on somedays batches with a high prevalence of Salmonella carriers shedding a high number of Salmonella were slaughtered. On these days, the potential for contamination/cross-contamination of carcasses will be so large that even hygienic slaughter, confirmed by the low EC on carcasses, will not be able to prevent the presence of Salmonella on some carcasses. The results of this study demonstrate that, despite the statistically significant association found, it may be difficult to predict when hygiene failure measured via EC actually indicates Salmonella contamination, and neither the inverse. MenosSources of contamination of carcasses during slaughter include infected pigs as well as environmentally related sources. There are many microbial indicators that can be used in the processing of food to assess food hygiene and the safety of food processing. The presence of some microbial indicators can be viewed as a result of direct or indirect contamination of a food with fecal material. The presence of Enterobacteriaceae is often used as a hygiene indicator, as they are found both in the environment and in the intestine of warm-blooded animals. An association between Salmonella isolation and Enterobacteriaceae count (EC) on pre-chill carcasses has been described, however the impact of slaughterhouse and the day of sampling on the occurrence of Salmonella has not been previously investigated. To this end, mixed logistic regressions (MLRs) with random effects and fixed slopes were performed to assess the change in EC and its correlation with Salmonella occurrence using two data sets. The first describes the EC and Salmonella isolation in 60 pork carcasses in one slaughterhouse sampled at 11 different slaughter steps, including the carcass as a random effect. The second describes the EC and Salmonella isolation on 1150 pre-chill carcasses sampled in 13 slaughterhouses over 230 sampling days, and the model combined two random intercepts, slaughterhouse and date of sampling nested with slaughterhouse (day/slaughterhouse). Statistically significant associations (p b 0.0001) bet... Mostrar Tudo |
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Palavras-Chave: |
Qualidade da carne. |
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Thesagro: |
Carcaça; Salmonella; Suíno. |
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Thesaurus Nal: |
Meat quality; Swine production. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03655naa a2200289 a 4500
001 2047027
005 2016-06-14
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.ijfoodmicro.2016.03.030$2DOI
100 1 $aCORBELLINI, L. G.
245 $aEffect of slaughterhouse and day of sample on the probability of a pig carcass being Salmonella-positive according to the Enterobacteriaceae count in the largest Brazilian pork production region.$h[electronic resource]
260 $c2016
520 $aSources of contamination of carcasses during slaughter include infected pigs as well as environmentally related sources. There are many microbial indicators that can be used in the processing of food to assess food hygiene and the safety of food processing. The presence of some microbial indicators can be viewed as a result of direct or indirect contamination of a food with fecal material. The presence of Enterobacteriaceae is often used as a hygiene indicator, as they are found both in the environment and in the intestine of warm-blooded animals. An association between Salmonella isolation and Enterobacteriaceae count (EC) on pre-chill carcasses has been described, however the impact of slaughterhouse and the day of sampling on the occurrence of Salmonella has not been previously investigated. To this end, mixed logistic regressions (MLRs) with random effects and fixed slopes were performed to assess the change in EC and its correlation with Salmonella occurrence using two data sets. The first describes the EC and Salmonella isolation in 60 pork carcasses in one slaughterhouse sampled at 11 different slaughter steps, including the carcass as a random effect. The second describes the EC and Salmonella isolation on 1150 pre-chill carcasses sampled in 13 slaughterhouses over 230 sampling days, and the model combined two random intercepts, slaughterhouse and date of sampling nested with slaughterhouse (day/slaughterhouse). Statistically significant associations (p b 0.0001) between the log of the EC and Salmonella occurrence were found in all models. Nevertheless, although a strong association was found between Enterobacteriaceae and Salmonella contamination in pork carcasses, this association was not constant, given that there was a high variation in the probability of a carcass being positive for Salmonella according to the EC mainly between days of samples. The effect of the day of sampling on Salmonella prevalence was so large that the predictive value of the EC count for Salmonella isolation on a daily basiswas compromised. It is possible that on somedays batches with a high prevalence of Salmonella carriers shedding a high number of Salmonella were slaughtered. On these days, the potential for contamination/cross-contamination of carcasses will be so large that even hygienic slaughter, confirmed by the low EC on carcasses, will not be able to prevent the presence of Salmonella on some carcasses. The results of this study demonstrate that, despite the statistically significant association found, it may be difficult to predict when hygiene failure measured via EC actually indicates Salmonella contamination, and neither the inverse.
650 $aMeat quality
650 $aSwine production
650 $aCarcaça
650 $aSalmonella
650 $aSuíno
653 $aQualidade da carne
700 1 $aBIANCO JÚNIOR, A.
700 1 $aCOSTA, E. de F.
700 1 $aDUARTE, A. S. R.
700 1 $aALBUQUERQUE, E. R.
700 1 $aKICH, J. D.
700 1 $aCARDOSO, M.
700 1 $aNAUTA, M.
773 $tInternational Journal of Food Microbiology$gv. 228, p. 58-66, 2016.
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Registro original: |
Embrapa Suínos e Aves (CNPSA) |
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Biblioteca |
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Origem |
Tipo/Formato |
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Registro |
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Status |
URL |
Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Agrossilvipastoril. Para informações adicionais entre em contato com cpamt.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
16/11/2012 |
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Data da última atualização: |
16/11/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
MATOS, E. da S.; FREESE, D.; Böhm, C.; QUINKENSTEIN, A.; HUTTL, R. F. |
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Afiliação: |
EDUARDO DA SILVA MATOS, CPAMT. |
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Título: |
Organic matter dynamics in reclaimed lignite mine soils under Robinia pseudoacacia L. plantations of different ages in Germany |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, v. 43, n. 5, p. 745-755, 2012. |
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Volume: |
43 |
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Páginas: |
745-755 |
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ISSN: |
0010-3624 |
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Idioma: |
Português |
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Conteúdo: |
In temperate regions, cultivation of Robinia pseudoacacia L. has recently received considerable attention because it is a fast-growing species for biomass and bioenergy production, while acting as a potential carbon (C) sink to counterbalance carbon dioxide (CO2) emissions and an alternative to agricultural crops on marginal sites. The objective of our work was to compare total organic carbon (TOC), total nitrogen (TN), and organic C fractions in postlignite mining soils under different development stages of R. pseudoacacia. Soil samples from three different depths (0?3, 3?10 and 10?30 cm) were taken in plantations 2, 3, 4, and 14 years old (R2, R3, R4, and R14, respectively). The TOC and TN contents increased with increasing tree age in all layers (P < 0.01). In the top 30 cm, TOC and TN stocks ranged from 11.7 to 59.8 Mg C ha?1 and from 0.30 to 2.61 Mg N ha?1 at R2 and R14, respectively. The rate of C sequestration was calculated to be 4.0 Mg C ha?1 year?1. Microbial biomass C and N were strongly correlated to TOC (r2 = 0.96 ? 0.81; P < 0.001) and TN contents (r2 = 0.92 ? 0.91; P < 0.001). The light fraction C (CLF) accounted for 15?30% and the heavy fraction C for 70% of TOC in all layers. In the 0- to 3-cm layer, CLF increased by 0.5 g kg?1 year?1. The results indicate that plantations of R. pseudoacacia are an attractive alternative to increase soil C contents in reclaimed lignite mining soils. In the short term, microbial biomass C and light fraction C are sensitive and provide an appropriate measure to assess soil C changes caused by cultivation of R. pseudoacacia. MenosIn temperate regions, cultivation of Robinia pseudoacacia L. has recently received considerable attention because it is a fast-growing species for biomass and bioenergy production, while acting as a potential carbon (C) sink to counterbalance carbon dioxide (CO2) emissions and an alternative to agricultural crops on marginal sites. The objective of our work was to compare total organic carbon (TOC), total nitrogen (TN), and organic C fractions in postlignite mining soils under different development stages of R. pseudoacacia. Soil samples from three different depths (0?3, 3?10 and 10?30 cm) were taken in plantations 2, 3, 4, and 14 years old (R2, R3, R4, and R14, respectively). The TOC and TN contents increased with increasing tree age in all layers (P < 0.01). In the top 30 cm, TOC and TN stocks ranged from 11.7 to 59.8 Mg C ha?1 and from 0.30 to 2.61 Mg N ha?1 at R2 and R14, respectively. The rate of C sequestration was calculated to be 4.0 Mg C ha?1 year?1. Microbial biomass C and N were strongly correlated to TOC (r2 = 0.96 ? 0.81; P < 0.001) and TN contents (r2 = 0.92 ? 0.91; P < 0.001). The light fraction C (CLF) accounted for 15?30% and the heavy fraction C for 70% of TOC in all layers. In the 0- to 3-cm layer, CLF increased by 0.5 g kg?1 year?1. The results indicate that plantations of R. pseudoacacia are an attractive alternative to increase soil C contents in reclaimed lignite mining soils. In the short term, microbial biomass C and light fraction C are sensitive an... Mostrar Tudo |
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Palavras-Chave: |
Rotation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02272naa a2200217 a 4500
001 1939795
005 2012-11-16
008 2012 bl uuuu u00u1 u #d
022 $a0010-3624
100 1 $aMATOS, E. da S.
245 $aOrganic matter dynamics in reclaimed lignite mine soils under Robinia pseudoacacia L. plantations of different ages in Germany$h[electronic resource]
260 $c2012
300 $a745-755 43
490 $v43
520 $aIn temperate regions, cultivation of Robinia pseudoacacia L. has recently received considerable attention because it is a fast-growing species for biomass and bioenergy production, while acting as a potential carbon (C) sink to counterbalance carbon dioxide (CO2) emissions and an alternative to agricultural crops on marginal sites. The objective of our work was to compare total organic carbon (TOC), total nitrogen (TN), and organic C fractions in postlignite mining soils under different development stages of R. pseudoacacia. Soil samples from three different depths (0?3, 3?10 and 10?30 cm) were taken in plantations 2, 3, 4, and 14 years old (R2, R3, R4, and R14, respectively). The TOC and TN contents increased with increasing tree age in all layers (P < 0.01). In the top 30 cm, TOC and TN stocks ranged from 11.7 to 59.8 Mg C ha?1 and from 0.30 to 2.61 Mg N ha?1 at R2 and R14, respectively. The rate of C sequestration was calculated to be 4.0 Mg C ha?1 year?1. Microbial biomass C and N were strongly correlated to TOC (r2 = 0.96 ? 0.81; P < 0.001) and TN contents (r2 = 0.92 ? 0.91; P < 0.001). The light fraction C (CLF) accounted for 15?30% and the heavy fraction C for 70% of TOC in all layers. In the 0- to 3-cm layer, CLF increased by 0.5 g kg?1 year?1. The results indicate that plantations of R. pseudoacacia are an attractive alternative to increase soil C contents in reclaimed lignite mining soils. In the short term, microbial biomass C and light fraction C are sensitive and provide an appropriate measure to assess soil C changes caused by cultivation of R. pseudoacacia.
653 $aRotation
700 1 $aFREESE, D.
700 1 $aBöhm, C.
700 1 $aQUINKENSTEIN, A.
700 1 $aHUTTL, R. F.
773 $tCommunications in Soil Science and Plant Analysis$gv. 43, n. 5, p. 745-755, 2012.
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