屠宰场生鸡肉肠炎沙门氏菌的污染途径

doi:10.7506/spkx1002-6630-201015045

食品科学 ›› 2010, Vol. 31 ›› Issue (15): 208-211.doi: 10.7506/spkx1002-6630-201015045

屠宰场生鸡肉肠炎沙门氏菌的污染途径

李继祥，高继业，唐妤，丁孟建，朱周福

西南大学荣昌校区

收稿日期:2009-12-28 修回日期:2010-05-17 出版日期:2010-08-15 发布日期:2010-12-29
通讯作者: 李继祥 E-mail:jixianglucky@126.com
基金资助:
重庆市自然科学基金项目(CSTC，2008BB1245)；西南大学科技服务资助项目(2007F002)

Contamination Pathways of Raw Chicken by Salmonella enteritidis in Slaughterhouses

LI Ji-xiang，GAO Ji-ye，TANG Yu，DING Meng-jian，ZHU Zhou-fu

Rongchang Campus, Southwest University, Chongqing 402460, China

Received:2009-12-28 Revised:2010-05-17 Online:2010-08-15 Published:2010-12-29
Contact: LI Ji-xiang E-mail:jixianglucky@126.com

摘要/Abstract

摘要：

目的：研究屠宰场生鸡肉肠炎沙门氏菌的主要污染途径。方法：以屠宰场生鸡肉样品为研究对象，在利用多聚酶链反应(PCR)检测肠炎沙门氏菌污染的基础上，通过流行病学的方法研究生鸡肉污染与肉鸡感染的关系。结果：屠宰场生鸡肉样品肠炎沙门氏菌污染阳性率为9.03%(26/288)，样品污染与样品来源屠宰场间无统计学联系，但与养殖场的肉鸡感染肠炎沙门氏菌有联系；养殖场肉鸡感染肠炎沙门氏菌与生鸡肉污染有正的统计学联系(相对危险性=18.5)；肉鸡实验性感染肠炎沙门氏菌后的带菌时间可达42d，排菌达56d 以上。结论：屠宰场生鸡肉肠炎沙门氏菌的污染途径主要为内源性污染。

关键词: 肠炎沙门氏菌, 屠宰场生鸡肉, 污染途径, 内源性污染

Abstract:

Objective: To explore main contamination pathways of raw chicken by Salmonella enteritidis in slaughterhouses. Methods: The contamination of Salmonella enteritidis in raw chicken samples from different slaughterhouses was detected by polymerase chain reaction (PCR). The relationship between the contamination of raw chicken and the infection of broilers was investigated. Results: A total of 288 samples from 5 slaughterhouses were detected, and the results showed that 9.03% of them were contaminated by Salmonella enteritidis. No significant difference was observed among raw chicken samples from different slaughterhouses; however, the number of contaminated samples was positively correlated with the infection of Salmonella enteritidis during the nursery of broilers (the relative risk was 18.5). The experimental infected broilers harbored Salmonella enteritidis for 42 days and the length of bacteria excretion was approximately 56 days. Conclusion: Endogenous contamination is the predominant contamination pathway by Salmonella enteritidis in raw chicken from slaughterhouses.

Key words: Salmonella enteritidis, raw chicken from slaughterhouse, contamination pathway, endogenous contamination

中图分类号:

R155.5

李继祥，高继业，唐妤，丁孟建，朱周福. 屠宰场生鸡肉肠炎沙门氏菌的污染途径[J]. 食品科学, 2010, 31(15): 208-211.

LI Ji-xiang，GAO Ji-ye，TANG Yu，DING Meng-jian，ZHU Zhou-fu. Contamination Pathways of Raw Chicken by Salmonella enteritidis in Slaughterhouses[J]. FOOD SCIENCE, 2010, 31(15): 208-211.

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屠宰场生鸡肉肠炎沙门氏菌的污染途径

Contamination Pathways of Raw Chicken by Salmonella enteritidis in Slaughterhouses

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