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| 1. |  | ALVES, F. V.; TORMEN, N.; ZANETTI, E.; SANTOS, S. A.; ABBADI, M.; BONDESAN, V.; JULIANO, R. S.; EGITO, A. A.; MORAES, M. DA G. DE; CASSANDRO, M. Contribuições do programa de conservação de ovinos autóctones do Vêneto (Itália) para o pantanal (Brasil). In: SIMPOSIO IBEROAMERICANO SOBRE CONSERVACIÓN Y UTILIZACIÓN DE RECURSOS ZOOGENÉTICOS, 11., 2010, João Pessoa. Memorias... João Pessoa: Ed. da UFPB: Instituto Nacional do Semiárido, 2010. p. 507-509.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
02/10/2012 |
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Data da última atualização: |
02/10/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SILVA, L. E. da; DIAS, V.; FERRONATTO, A.; GUERRA, P.; BERNO, L.; TRICHES, N.; KICH, J. D.; CORBELLINI, L. G.; CARDOSO, M. |
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Afiliação: |
LUIS EDUARDO DA SILVA, UFRGS; VANESSA DIAS, UFRGS; ANDRÉIA FERRONATTO, UFRGS; PRISCILA GUERRA, UFRGS; LAÍS BERNO; NELISE TRICHES, UFRGS; JALUSA DEON KICH, CNPSA; LUIS GUSTAVO CORBELLINI, UFRGS; MARISA CARDOSO, UFRGS. |
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Título: |
Longitudinal dissemination of salmonella enterica clonal groups through the slaughter process of salmonella-positive pig batches. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Journal of Food Protection, v. 75, n. 9, p. 1580?1588, 2012. |
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Idioma: |
Inglês |
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Notas: |
Projeto: 04.10.06.001. |
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Conteúdo: |
This study was conducted to assess the dissemination of Salmonella clonal groups in slaughterhouses that received batches of Salmonella-positive pigs and used different routine processing procedures. Eight serial sampling sessions were conducted in three slaughterhouses (A, B, and C). Blood was collected randomly (n~25) from each batch of pigs and processed for serology. Carcasses (n ~ 12) were identified and sampled after dehairing, after singeing, after evisceration, and before chilling. A section of cecum also was collected. Salmonella isolates were submitted to pulsed-field gel electrophoresis. The overall seroprevalence of Salmonella was 80.6% (316 of 392 samples), and cecal contents were positive for Salmonella in 23.8% (26 of 109) of the pigs sampled. Carcasses after dehairing had a significantly higher prevalence of Salmonella (P ~ 0.004) and the highest Salmonella levels (median ~ 0.26 log CFU/300 cm2). The singeing step significantly affected the Salmonella status of the carcasses (P ,0.001); however, the efficacy of singeing differed among slaughterhouses. In the prechilling step, 14.7% (16 of 109) of the carcasses were positive for Salmonella. Salmonella pulsotypes found on the prechill carcasses were also found in the lairage, in the cecal contents, and on carcasses after dehairing, suggesting that the main source of contamination was the slaughter process before singeing. Slaughterhouse C was the most likely (odds ration [OR] ~ 6.51) to have pigs carrying Salmonella in the gut, and slaughterhouse B was the most likely (OR ~ 14.66) to have contaminated carcasses at the prechilling step. These findings indicate that the procedures adopted in slaughterhouse B contributed to the spread of Salmonella strains. In contrast, in slaughterhouse C the Salmonella strains carried by the pigs or found in the lairage were not recovered from prechilled carcasses, validating the effectiveness of the slaughterhouse interventions. These results indicate that an effective slaughter process can help decrease the number of Salmonella-positive carcasses in slaughterhouses that receive Salmonella-positive pig batches. MenosThis study was conducted to assess the dissemination of Salmonella clonal groups in slaughterhouses that received batches of Salmonella-positive pigs and used different routine processing procedures. Eight serial sampling sessions were conducted in three slaughterhouses (A, B, and C). Blood was collected randomly (n~25) from each batch of pigs and processed for serology. Carcasses (n ~ 12) were identified and sampled after dehairing, after singeing, after evisceration, and before chilling. A section of cecum also was collected. Salmonella isolates were submitted to pulsed-field gel electrophoresis. The overall seroprevalence of Salmonella was 80.6% (316 of 392 samples), and cecal contents were positive for Salmonella in 23.8% (26 of 109) of the pigs sampled. Carcasses after dehairing had a significantly higher prevalence of Salmonella (P ~ 0.004) and the highest Salmonella levels (median ~ 0.26 log CFU/300 cm2). The singeing step significantly affected the Salmonella status of the carcasses (P ,0.001); however, the efficacy of singeing differed among slaughterhouses. In the prechilling step, 14.7% (16 of 109) of the carcasses were positive for Salmonella. Salmonella pulsotypes found on the prechill carcasses were also found in the lairage, in the cecal contents, and on carcasses after dehairing, suggesting that the main source of contamination was the slaughter process before singeing. Slaughterhouse C was the most likely (odds ration [OR] ~ 6.51) to have pigs carrying Salmo... Mostrar Tudo |
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Palavras-Chave: |
Salmonela enterica. |
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Thesagro: |
Suíno. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02907naa a2200253 a 4500
001 1935295
005 2012-10-02
008 2012 bl uuuu u00u1 u #d
100 1 $aSILVA, L. E. da
245 $aLongitudinal dissemination of salmonella enterica clonal groups through the slaughter process of salmonella-positive pig batches.$h[electronic resource]
260 $c2012
500 $aProjeto: 04.10.06.001.
520 $aThis study was conducted to assess the dissemination of Salmonella clonal groups in slaughterhouses that received batches of Salmonella-positive pigs and used different routine processing procedures. Eight serial sampling sessions were conducted in three slaughterhouses (A, B, and C). Blood was collected randomly (n~25) from each batch of pigs and processed for serology. Carcasses (n ~ 12) were identified and sampled after dehairing, after singeing, after evisceration, and before chilling. A section of cecum also was collected. Salmonella isolates were submitted to pulsed-field gel electrophoresis. The overall seroprevalence of Salmonella was 80.6% (316 of 392 samples), and cecal contents were positive for Salmonella in 23.8% (26 of 109) of the pigs sampled. Carcasses after dehairing had a significantly higher prevalence of Salmonella (P ~ 0.004) and the highest Salmonella levels (median ~ 0.26 log CFU/300 cm2). The singeing step significantly affected the Salmonella status of the carcasses (P ,0.001); however, the efficacy of singeing differed among slaughterhouses. In the prechilling step, 14.7% (16 of 109) of the carcasses were positive for Salmonella. Salmonella pulsotypes found on the prechill carcasses were also found in the lairage, in the cecal contents, and on carcasses after dehairing, suggesting that the main source of contamination was the slaughter process before singeing. Slaughterhouse C was the most likely (odds ration [OR] ~ 6.51) to have pigs carrying Salmonella in the gut, and slaughterhouse B was the most likely (OR ~ 14.66) to have contaminated carcasses at the prechilling step. These findings indicate that the procedures adopted in slaughterhouse B contributed to the spread of Salmonella strains. In contrast, in slaughterhouse C the Salmonella strains carried by the pigs or found in the lairage were not recovered from prechilled carcasses, validating the effectiveness of the slaughterhouse interventions. These results indicate that an effective slaughter process can help decrease the number of Salmonella-positive carcasses in slaughterhouses that receive Salmonella-positive pig batches.
650 $aSuíno
653 $aSalmonela enterica
700 1 $aDIAS, V.
700 1 $aFERRONATTO, A.
700 1 $aGUERRA, P.
700 1 $aBERNO, L.
700 1 $aTRICHES, N.
700 1 $aKICH, J. D.
700 1 $aCORBELLINI, L. G.
700 1 $aCARDOSO, M.
773 $tJournal of Food Protection$gv. 75, n. 9, p. 1580?1588, 2012.
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