开封市畜禽沙门菌污染状况及血清学鉴定分析

了解开封市畜禽肉中沙门菌的污染状况及血清学分布,为沙门菌引起的食源性疾病的防控提供依据。方法 依据GB 4789.4—2010《中华人民共和国国家标准食品卫生微生物学检验方法》和2011年国家食源性疾病监测网监测方案,定期对开封市畜禽养殖场和屠宰场进行随机采样监测。结果 在691份样品中,沙门菌检出率为35.9%(248/691)；分离出沙门菌253株,有17个血清型。结论 开封市生鸡肉和生猪肉不同程度受到沙门菌的污染,以生鸡肉污染最严重。应加强禽畜类养殖、屠宰加工等过程的卫生监管,减少食源性疾病的发生。

Monitoring and analysis of Salmonella contamination and serotyping in poultry and livestocks in Kaifeng

To investigate the situation of Salmonella contamination and serotype distribution isolated from poultry and livestock in Kaifeng city, and to provide a scientific basis for foodborne diseases prevention and control.MethodsSamples of poultry and livestock were collected periodically and randomly from the slaughterhouses and farms in Kaifeng city. Samples were detected according to GB 4789.4-2010and the handbook of investigation of food contamination bacteria of Chinese CDC in 2011. ResultsAmong 691samples, 248were detected positive for Salmonella with a detection rate of 35.9%. 253strains of Salmonella were isolated, belonging to 17serotypes.ConclusionIn Kaifeng city, the poultry and pork, particularly fresh chicken, were contaminated by Salmonella at certain degree. Enhanced management and monitoring in breeding, slaughtering, processing of poultry and livestock are needed to reduce the incidence of food-borne infections.