摘要
目的了解开封市肉猪养殖屠宰加工过程中沙门菌的污染状况。方法采集不同来源的养殖场猪混合粪便、成年猪肛拭子、胴体涂抹物、肠系膜淋巴结样本,共187份,按照GB 4789.4—2010进行沙门菌的分离和鉴定。结果猪混合粪便沙门菌检出率为4.5%,肛拭子沙门菌的检出率为16.4%,胴体涂抹物沙门菌检出率为34.5%,肠系膜淋巴结沙门菌检出率为27.3%。不同季节的检出率差异有统计学意义(P<0.05)。阳性分离株分布于沙门菌的5个群,共14个血清型,以阿贡纳沙门菌和德尔卑沙门菌为主。结论屠宰环节是沙门菌交叉污染的关键点,应采取综合措施,有效控制猪肉沙门菌污染。
Objective To monitor and analyze the contamination of Salmonella during the process of pig cultivation and slaughting in Kaifeng. Methods A total of 187 samples of pig feces, anal swab, carcass smear and mesenterie lymphnode were randomly collected from different sources. Samples were isolated and identified according to GB 4789.4--2010 to monitor the contamination of Salmonella. Results Salmonella was detected in 4.5% of the pig feces, 16.4% of the anal swab, 34.5% of the carcass smear and 27.3% of the mesenteric lymph node. The detection rate was significantly different in different seasons （P 〈 0. 05 ）. The positive isolates were distributed in 5 groups, containing 14 serotypes, mainly S. agona and S. derby. Conclusion Slaughter process is the critical point of pork Salmonella cross-contamination. Comprehensive measures should be taken in order to effectively control the Salmonella contamination in pork product.
出处
《中国食品卫生杂志》
北大核心
2013年第1期61-64,共4页
Chinese Journal of Food Hygiene
