Näther G, Alter T, Martin A, Ellerbroek L
Federal Institute for Risk Assessment, Unit Food Hygiene and Safety Concepts, 14195 Berlin, Germany.
Poult Sci. 2009 Jun;88(6):1299-305. doi: 10.3382/ps.2008-00389.
We have sampled 146 German broiler flocks at slaughter from May 2004 to April 2005 to determine the prevalence of Campylobacter spp. and to investigate risk factors for the presence of Campylobacter spp. at flock level. Cecal samples were tested in accordance to ISO 10727, and potential risk factors were analyzed using farm- and flock-specific information obtained from questionnaires. Of the flocks tested, 44% were Campylobacter-positive, and most were infected with Campylobacter jejuni. Higher Campylobacter prevalence was found during the months of May to October (52%). Using farm- and flock-specific information obtained from questionnaires, we identified 3 risk factors for Campylobacter colonization. Campylobacter prevalence was significantly higher in flocks from free-range and organic farms, in flocks with a size up to 15,000 birds and with more than 25,000 birds, and in flocks using nipple drinkers with trays. We found no evidence of an effect of slaughter age, time interval between successive flocks, hygiene measures, number of broiler houses on a farm, partial slaughter, source of water supply, and number of farm employees on the Campylobacter infection rate.
2004年5月至2005年4月期间，我们在屠宰场对146个德国肉鸡群进行了采样，以确定弯曲杆菌属的流行情况，并调查鸡群层面弯曲杆菌属存在的风险因素。盲肠样本按照ISO 10727进行检测，并使用从问卷调查中获得的农场和鸡群特定信息分析潜在风险因素。在检测的鸡群中，44%为弯曲杆菌阳性，大多数感染的是空肠弯曲杆菌。在5月至10月期间发现弯曲杆菌的流行率较高（52%）。利用从问卷调查中获得的农场和鸡群特定信息，我们确定了弯曲杆菌定植的3个风险因素。来自放养和有机农场的鸡群、规模达15000只及超过25000只的鸡群以及使用带托盘乳头饮水器的鸡群中，弯曲杆菌的流行率显著更高。我们没有发现屠宰年龄、连续鸡群之间的时间间隔、卫生措施、农场肉鸡舍数量、部分屠宰、供水来源以及农场员工数量对弯曲杆菌感染率有影响的证据。
