两家屠宰场中肉鸡在氯水预冷和后冷过程中李斯特菌属的出现情况。
Occurrence of Listeria species in broilers pre- and post-chilling in chlorinated water at two slaughterhouses.
作者信息
Loncarevic S, Tham W, Danielsson-Tham M L
机构信息
Department of Food Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala.
出版信息
Acta Vet Scand. 1994;35(2):149-54. doi: 10.1186/BF03548342.
Altogether 323 pooled samples of neck skins from 1615 broilers from 2 processing plants (A and B) were examined for the presence of Listeria species. The broilers were sampled pre-chilling-after leaving the final rinser but before entering the chiller with chlorinated water-and post-chilling-immediately upon leaving the chiller. Free available chlorine in the chilling water varied from 2 to 15 ppm in plant A and was about 10 ppm in plant B. Listeria monocytogenes was only isolated from broilers in plant A sampled post-chilling (58% of 62 samples). L. innocua was isolated from 19% and 39% of broilers sampled pre-chilling in plants A and B, respectively. Post-chilling, L. innocua was isolated from 3% and 6% of samples from plants A and B, respectively.
对来自2家加工厂（A厂和B厂）的1615只肉鸡的323份颈部皮肤混合样本进行了李斯特菌属检测。这些肉鸡在预冷时（离开最终冲洗机后但在进入加氯水冷却器之前）和后冷时（离开冷却器后立即）进行采样。冷却水中的游离有效氯在A厂为2至15 ppm，在B厂约为10 ppm。仅从A厂后冷采样的肉鸡中分离出单核细胞增生李斯特菌（62个样本中的58%）。无害李斯特菌分别从A厂和B厂预冷采样的肉鸡中19%和39%的样本中分离出来。后冷时，无害李斯特菌分别从A厂和B厂3%和6%的样本中分离出来。
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