Contamination Levels of <I>Salmonella</I> and <I>Listeria</I> sp. in Commercial Raw Meat

DOI Rie, ONO Kazuaki, SAITOH Akinobu, OHTSUKA Kayoko, SHIBATA Yutaka, MASAKI Hiroyuki

doi:10.12935/jvma1951.56.167

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市販食肉におけるサルモネラとリステリアの汚染状況
日本獣医公衆衛生学会市販食肉におけるサルモネラとリステリアの汚染状況
ニホンジュウイコウシュウエイセイガッカイシハンショクニクニオケルサルモネラトリステリアノオセンジョウキョウ
Contamination Levels of Salmonella and Listeria sp. in Commercial Raw Meat

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Description

Between May 1999 and March 2001, a total of 166 raw meat specimens collected from retail markets in Saitama Prefecture was examined for the presence of Salmonella and Listeria sp. Salmonella was isolated from 9.5% of domestic chicken specimens and 13.6% of imported chicken specimens. According to the most-probablenumber (MPN) method, numbers of contaminating Salmonella cells were less than 10 cfu/g. Main Salmonella serotypes were S. Infantis for domestic chicken and S. Enteritidis for imported chicken. Listeria sp. were isolated from all the kinds of meat examined. Isolation rates among domestic meats were 22.7% for beef, 40.0% for pork, and 42.9% for chicken. Rates among imported meats were 34.5% for beef, 30.0% for pork, and 64.4% for chicken. According to the MPN method, contaminating cell numbers were less than 10 cfu/g for all kinds of domestic meat but more than 10 cfu/g for all kinds of imported meat. Some specimens of both imported pork and imported chicken showed more than 100 cfu/g. L. monocytogenes were isolated from all kinds of meat. The most prevalent serotype was 1/2a, accounting for 38.2% of all isolates of the organism.

Journal

Journal of the Japan Veterinary Medical Association

Journal of the Japan Veterinary Medical Association 56 (3), 167-170, 2003

Japan Veterinary Medical Association

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