Jacobs-Reitsma W F
Institute for Animal Science and Health (ID-DLO), Research Branch Beekbergen, The Netherlands.
Avian Dis. 1995 Apr-Jun;39(2):355-9.
Nine Dutch breeder farms with a total of 43 separately housed flocks were examined for the presence of Campylobacter spp. and Salmonella spp. Penner serotyping of Campylobacter isolates was used to identify epidemiological factors contributing to the Campylobacter infection of these breeder flocks. Campylobacter was isolated from 29 of the 43 flocks (67%), and Salmonella was isolated from 12 flocks (28%). Two of the nine farms were both Campylobacter- and Salmonella-free at the time of sampling. Two other farms were Salmonella-free but Campylobacter-positive. A total of 330 Campylobacter isolates were serotyped, and 19 different Campylobacter serotypes were isolated in this study. Some similarities were observed in the patterns of serotype occurrence in houses of a given farm. Campylobacter colonization of breeder flocks indicates a potential role of vertical transmission via the egg to progeny. However, serotyping results did not support a vertical transmission route via the egg. Therefore, breeder flocks have to be recognized as another reservoir of Campylobacter, and it is more appropriate to consider them a potential risk factor in horizontal transmission routes.
对9个荷兰种鸡养殖场进行了检查，这些养殖场共有43个单独饲养的鸡群，检测弯曲杆菌属和沙门氏菌属的存在情况。利用弯曲杆菌分离株的彭纳血清分型来确定导致这些种鸡群弯曲杆菌感染的流行病学因素。43个鸡群中有29个分离出弯曲杆菌（67%），12个鸡群分离出沙门氏菌（28%）。在采样时，9个养殖场中有2个既没有弯曲杆菌也没有沙门氏菌。另外2个养殖场没有沙门氏菌但弯曲杆菌呈阳性。总共对330株弯曲杆菌分离株进行了血清分型，本研究中分离出19种不同的弯曲杆菌血清型。在给定养殖场的鸡舍中，血清型出现模式存在一些相似之处。种鸡群的弯曲杆菌定植表明通过鸡蛋垂直传播给后代具有潜在作用。然而，血清分型结果不支持通过鸡蛋的垂直传播途径。因此，必须将种鸡群视为弯曲杆菌的另一个储存宿主，将它们视为水平传播途径中的潜在风险因素更为合适。
