Cross-contamination with Salmonella on a broiler slaughterhouse line demonstrated by use of epidemiological markers
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Cross-contamination with Salmonella on a broiler slaughterhouse line demonstrated by use of epidemiological markers. / Olsen, J. E.; Brown, D. J.; Madsen, M.; Bisgaard, M.
I: Journal of Applied Microbiology, Bind 94, Nr. 5, 2003, s. 826-835.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Cross-contamination with Salmonella on a broiler slaughterhouse line demonstrated by use of epidemiological markers
AU - Olsen, J. E.
AU - Brown, D. J.
AU - Madsen, M.
AU - Bisgaard, M.
PY - 2003
Y1 - 2003
N2 - Aims: To investigate contamination of surfaces on a poultry slaughter line from infected poultry and subsequent cross-contamination of non-infected poultry. Methods and Results: A broiler slaughterhouse was investigated for the presence of Salmonella on 17 defined points over two 1-week periods. Flocks supplied to slaughter and neck skin samples from processed chicken were likewise investigated. Salmonella was detected in 10 out of 18 flocks at ante-mortem inspection, while seven flocks tested positive in the finished products. Equipment at all but one control point at the slaughter line tested positive at least once during the study. The chicken receiving area was the most contaminated. By comparison of typing results from serotyping, plasmid profile typing and phage typing, direct evidence for cross-contamination with Salm. serotype Typhimurium, Salm. Serotype 4·12:b:- and Salm. serotype Virchow on the slaughter line was obtained for four of the flocks. The cleaning procedure in place did not remove all Salmonella from the contaminated areas. Conclusions: Evidence for contamination of equipment on a slaughter line and subsequent cross-contamination to non-infected chicken was provided by typing methods. Significance and Impact of the Study: This study has provided detailed information on cross-contamination on a slaughter line by the use of phage typing and plasmid profiling. The study stresses the importance of controlling Salmonella in the primary production, as contamination of the equipment on the slaughter line will act as a vehicle to contaminate finished products. Cleaning procedures on slaughter lines cannot be expected to control this problem with the current equipment.
AB - Aims: To investigate contamination of surfaces on a poultry slaughter line from infected poultry and subsequent cross-contamination of non-infected poultry. Methods and Results: A broiler slaughterhouse was investigated for the presence of Salmonella on 17 defined points over two 1-week periods. Flocks supplied to slaughter and neck skin samples from processed chicken were likewise investigated. Salmonella was detected in 10 out of 18 flocks at ante-mortem inspection, while seven flocks tested positive in the finished products. Equipment at all but one control point at the slaughter line tested positive at least once during the study. The chicken receiving area was the most contaminated. By comparison of typing results from serotyping, plasmid profile typing and phage typing, direct evidence for cross-contamination with Salm. serotype Typhimurium, Salm. Serotype 4·12:b:- and Salm. serotype Virchow on the slaughter line was obtained for four of the flocks. The cleaning procedure in place did not remove all Salmonella from the contaminated areas. Conclusions: Evidence for contamination of equipment on a slaughter line and subsequent cross-contamination to non-infected chicken was provided by typing methods. Significance and Impact of the Study: This study has provided detailed information on cross-contamination on a slaughter line by the use of phage typing and plasmid profiling. The study stresses the importance of controlling Salmonella in the primary production, as contamination of the equipment on the slaughter line will act as a vehicle to contaminate finished products. Cleaning procedures on slaughter lines cannot be expected to control this problem with the current equipment.
KW - Broiler production
KW - Cross-contamination
KW - Salmonella
KW - Typing
U2 - 10.1046/j.1365-2672.2003.01911.x
DO - 10.1046/j.1365-2672.2003.01911.x
M3 - Journal article
C2 - 12694447
AN - SCOPUS:0038216542
VL - 94
SP - 826
EP - 835
JO - Proceedings of the Society for Applied Bacteriology
JF - Proceedings of the Society for Applied Bacteriology
SN - 0266-8254
IS - 5
ER -
ID: 251184891