Identification of the Source for <i>Salmonella</i> Contamination of Carcasses in a Large Pig Slaughterhouse
To identify the major source of <i>Salmonella</i> contamination in a pig slaughterhouse, samples were collected from the clean and unclean area and <i>Salmonella</i> isolates were further typed. Carcasses entering the clean area showed a <i>Salmonella</i> contamin...
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MDPI AG
2021-01-01
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| Series: | Pathogens |
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| Online Access: | https://www.mdpi.com/2076-0817/10/1/77 |
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| author | Hang Zeng Geertrui Rasschaert Lieven De Zutter Wesley Mattheus Koen De Reu |
| author_facet | Hang Zeng Geertrui Rasschaert Lieven De Zutter Wesley Mattheus Koen De Reu |
| author_sort | Hang Zeng |
| collection | DOAJ |
| description | To identify the major source of <i>Salmonella</i> contamination in a pig slaughterhouse, samples were collected from the clean and unclean area and <i>Salmonella</i> isolates were further typed. Carcasses entering the clean area showed a <i>Salmonella</i> contamination rate of 96.7% in the oral cavity and 55.0% in the rectum content samples. Evisceration seemed not to be critical as the contamination rate of the carcasses was similar before (16.7%) and after (18.3%) this slaughter step. In the unclean area, a limited number of oral cavity samples were positive after bleeding, while a dramatic increase of positives was observed after dehairing. <i>Salmonella</i> was detected in up to 0.01 mL of the recycled water collected from the dehairing machine. Genotyping of <i>Salmonella</i> isolates showed that similar pulsotypes were present in the oral cavity and recycled water. Based on these observations it can be concluded that the recycled water used in the dehairing machine was the major source for the carcass contamination in this slaughterhouse. |
| first_indexed | 2024-03-09T04:31:00Z |
| format | Article |
| id | doaj.art-8c70711881684beab8c6c0e15c18081b |
| institution | Directory Open Access Journal |
| issn | 2076-0817 |
| language | English |
| last_indexed | 2024-03-09T04:31:00Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
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| series | Pathogens |
| spelling | doaj.art-8c70711881684beab8c6c0e15c18081b2023-12-03T13:35:35ZengMDPI AGPathogens2076-08172021-01-011017710.3390/pathogens10010077Identification of the Source for <i>Salmonella</i> Contamination of Carcasses in a Large Pig SlaughterhouseHang Zeng0Geertrui Rasschaert1Lieven De Zutter2Wesley Mattheus3Koen De Reu4Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Brusselsesteenweg 370, B-9090 Melle, BelgiumFlanders Research Institute for Agriculture, Fisheries and Food (ILVO), Brusselsesteenweg 370, B-9090 Melle, BelgiumDepartment of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, BelgiumInfectious Diseases in Humans, Bacterial Diseases, Sciensano, B-1180 Brussels, BelgiumFlanders Research Institute for Agriculture, Fisheries and Food (ILVO), Brusselsesteenweg 370, B-9090 Melle, BelgiumTo identify the major source of <i>Salmonella</i> contamination in a pig slaughterhouse, samples were collected from the clean and unclean area and <i>Salmonella</i> isolates were further typed. Carcasses entering the clean area showed a <i>Salmonella</i> contamination rate of 96.7% in the oral cavity and 55.0% in the rectum content samples. Evisceration seemed not to be critical as the contamination rate of the carcasses was similar before (16.7%) and after (18.3%) this slaughter step. In the unclean area, a limited number of oral cavity samples were positive after bleeding, while a dramatic increase of positives was observed after dehairing. <i>Salmonella</i> was detected in up to 0.01 mL of the recycled water collected from the dehairing machine. Genotyping of <i>Salmonella</i> isolates showed that similar pulsotypes were present in the oral cavity and recycled water. Based on these observations it can be concluded that the recycled water used in the dehairing machine was the major source for the carcass contamination in this slaughterhouse.https://www.mdpi.com/2076-0817/10/1/77<i>Salmonella</i>pig carcassesslaughterhousedehairingevisceration |
| spellingShingle | Hang Zeng Geertrui Rasschaert Lieven De Zutter Wesley Mattheus Koen De Reu Identification of the Source for <i>Salmonella</i> Contamination of Carcasses in a Large Pig Slaughterhouse Pathogens <i>Salmonella</i> pig carcasses slaughterhouse dehairing evisceration |
| title | Identification of the Source for <i>Salmonella</i> Contamination of Carcasses in a Large Pig Slaughterhouse |
| title_full | Identification of the Source for <i>Salmonella</i> Contamination of Carcasses in a Large Pig Slaughterhouse |
| title_fullStr | Identification of the Source for <i>Salmonella</i> Contamination of Carcasses in a Large Pig Slaughterhouse |
| title_full_unstemmed | Identification of the Source for <i>Salmonella</i> Contamination of Carcasses in a Large Pig Slaughterhouse |
| title_short | Identification of the Source for <i>Salmonella</i> Contamination of Carcasses in a Large Pig Slaughterhouse |
| title_sort | identification of the source for i salmonella i contamination of carcasses in a large pig slaughterhouse |
| topic | <i>Salmonella</i> pig carcasses slaughterhouse dehairing evisceration |
| url | https://www.mdpi.com/2076-0817/10/1/77 |
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