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KMID : 0380420030270010041
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Journal of Prventive Veterinary Medicine
2003 Volume.27 No. 1 p.41 ~ p.46
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Prevalence of Listeria spp. in Cecal Contents of Livestock
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Abstract
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We surveyed the prevalence of Listeria spp. in cecal contents of pig and chicken collected from abattoirs. only 4 L. lnnocua isolates were detected in a total of 100 pig samples. From the 100 chicken samples, 47 were confirmed positive for Listeria spp. Twenty eight of these 47 positive samples contained only L. lnnocua; 15 contained both L. monocytogenes and L. lnnocua; 4 contained only L. mnocytogenes. No other Listeria spp. were detected in this study. Listeria spp. were detected in 471115 (40.9%) blackened Fraser broth samples and in 4/85 (4.7%) samples in which Fraser broth did not blacken. Fourteen (73.7%) L. monocytogenes isolates were recovered after 48 h, not 24 h, Fraser broth secondary enrichment.
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