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目的了解肉鸡孵化、养殖、屠宰加工和配送分销各环节的沙门菌污染状况,确定易受污染的环节和样品类别,为预防和控制由沙门菌引起的食源性疾病提供科学依据。方法按照随机抽样的原则,在济南市肉鸡孵化场、养殖场、屠宰场(点)和配送分销点设置16个监测点,按不同的季节和环节定期随机采集监测样本。检验方法按照《2012年全国食源性致病菌监测工作手册》执行。结果监测17种样品共1 204份,13种样品检出沙门菌202株,总检出率为16.78%。除1种不可分型外,其他分属4群28种血清型,以印第安纳血清型沙门菌最多(37.13%);4个环节中,以屠宰加工环节沙门菌检出率最高(23.14%);四个季度中,以第二季度沙门菌检出率最高(21.74%);17种样品中,以屠宰环节的褪毛后整禽样本沙门菌检出率最高(42.19%)。结论济南市肉鸡相关行业的沙门菌交叉污染严重,应加强肉鸡生产链全过程的监管和监测,并针对各污染环节和工序,确定不同的关键控制点,制定相应的操作程序,以减少沙门菌的交叉污染。
Objective To understand the status of Salmonella contamination in hatching, breeding, slaughtering, processing and distribution of broiler chickens, to identify the vulnerable sections and sample types, and to provide a scientific basis for the prevention and control of food borne diseases caused by Salmonella. Methods According to the principle of random sampling, 16 monitoring points were set up in broiler hatcheries, farms, slaughterhouses (point) and distribution and distribution points in Ji’nan City. Randomly collect monitoring samples according to different seasons and links. Inspection methods in accordance with the “2012 National Foodborne Pathogen Monitoring Manual”. Results A total of 1 204 samples from 17 samples were detected, and 202 samples from 13 samples were detected, with a total detection rate of 16.78%. In addition to 1 inseparable, the other belongs to 4 groups of 28 serotypes, with Indiana serotype Salmonella most (37.13%); 4 links, the highest detection rate of slaughter process Salmonella (23.14%); four The highest detection rate of Salmonella was in the second quarter (21.74%) in all the quarters. Among the 17 samples, the detection rate of salmonella was the highest (42.19%) after the flocking process. Conclusion The cross-contamination of Salmonella in broiler-related industries in Jinan City is serious. Supervision and monitoring should be strengthened throughout the whole production process of broiler chickens. Different key control points should be identified according to each pollution link and process. Corresponding operating procedures should be worked out to reduce Salmonella Cross-contamination.