EPIDEMIOLOGY OF CAMPYLOBACTER SPP AT 2 DUTCH BROILER FARMS
EPIDEMIOLOGY OF CAMPYLOBACTER SPP AT 2 DUTCH BROILER FARMS
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DOI：
10.1017/s0950268800052122
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发表时间：
1995-06-01
影响因子：
4.2
通讯作者：
MULDER, RWA
中科院分区：
文献类型：
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作者：
JACOBSREITSMA, WF;VANDEGIESSEN, AW;MULDER, RWA
在连续8个生产周期内，每周对两个荷兰家禽养殖场的肉鸡进行新鲜盲肠粪便中弯曲杆菌的检测。在每个新周期开始时采集孵化场和新鲜窝产仔样本。农场的水、饲料、昆虫和家畜粪便也包括在采样范围内。分离物的Penner血清分型用于确定导致弯曲杆菌在肉鸡群中定植的流行病学因素。一般情况下，肉鸡群在3-4周龄左右开始定殖弯曲杆菌，分离率为100%，并保持定殖直到屠宰。在一个生产周期内，在一个农场的不同鸡舍内发现了类似的血清型模式。新禽群普遍表现出新的血清型模式。从蛋鸡、猪、羊和牛中分离的血清型与同时从肉鸡中分离的血清型多数不同。鸡舍内黑甲虫的弯曲杆菌血清型与肉鸡分离的弯曲杆菌血清型相同。从孵化场、水、饲料和新鲜垃圾样品中均未分离到弯曲杆菌。没有找到传播途径的确凿证据，但结果肯定指向来自环境的水平传播。通过肉鸡房内的持续污染从一个肉鸡群向下一个肉鸡群的水平传播，以及通过孵化场从种鸡群向后代的垂直传播，似乎都不太可能。
Broiler flocks on two Dutch poultry farms were screened weekly for the presence of campylobacter in fresh caecal droppings during eight consecutive production cycles. Hatchery and fresh litter samples were taken at the start of each new cycle. Water, feed, insects, and faeces of domestic animals: present on the farms were also included in the sampling. Penner serotyping of isolates was used to identify epidemiological factors that contribute to campylobacter colonization in the broiler flocks. Generally, broiler flocks became colonized with campylobacter at about 3-4 weeks of age with isolation percentages of 100 %, and stayed colonized up to slaughter. A similar pattern of serotypes was found within the various broiler houses on one farm during one production cycle. New flocks generally showed also a new pattern of serotypes. Most serotypes isolated from the laying hens, pigs, sheep and cattle were different from those isolated from the broilers at the same time. Campylobacter serotypes from darkling beetles inside the broiler houses were identical to the ones isolated from the broilers. No campylobacter was isolated from any of the hatchery, water, feed or fresh litter samples. Conclusive evidence of transmission routes was not found, but results certainly point towards horizontal transmission from the environment. Horizontal transmission from one broiler flock to the next one via a persistent contamination within the broiler house, as well as vertical transmission from breeder flocks via the hatchery to progeny, did not seem to be very likely.