肉鸡群中空肠弯曲菌的流行病学及防控研究。
Study on the epidemiology and control of Campylobacter jejuni in poultry broiler flocks.
作者信息
van de Giessen A, Mazurier S I, Jacobs-Reitsma W, Jansen W, Berkers P, Ritmeester W, Wernars K
机构信息
Laboratory for Water and Food Microbiology, National Institute of Public Health and Environmental Protection, Bilthoven, The Netherlands.
出版信息
Appl Environ Microbiol. 1992 Jun;58(6):1913-7. doi: 10.1128/aem.58.6.1913-1917.1992.
Broiler flocks are frequently infected with Campylobacter jejuni. The origin of the infection is still unclear. The question of whether colonization of flocks results from transmission of C. jejuni from breeder flocks to progeny (vertical transmission) or from environmental sources (horizontal transmission) remains to be answered. Therefore, in this study samples were taken from successive broiler flocks in two broiler houses (house A on farm A and house B1 on farm B) as well as from the environment of the houses. All C. jejuni isolates were typed by using the Penner serotyping system, and part of the isolates from farm B were typed by using a randomly amplified polymorphic DNA-typing system. In poultry house A, C. jejuni was isolated from the first flock but not from subsequent flocks. In poultry house B1, C. jejuni strains of the same Penner serotypes and exhibiting identical DNA profiles were isolated from successive flocks. Infection of the flocks from a common source via horizontal pathways is suspected, while a vertical route of infection is not likely to exist. Application of measures to control horizontal transmission of C. jejuni on farm B was successful.
肉鸡群经常感染空肠弯曲菌。感染源仍不清楚。鸡群的定植是源于空肠弯曲菌从种鸡群传播给后代（垂直传播）还是源于环境来源（水平传播）的问题仍有待解答。因此，在本研究中，从两个肉鸡舍（农场A的A舍和农场B的B1舍）的连续肉鸡群以及鸡舍环境中采集了样本。所有空肠弯曲菌分离株均使用彭纳血清分型系统进行分型，农场B的部分分离株使用随机扩增多态性DNA分型系统进行分型。在A禽舍中，从第一批鸡群中分离出了空肠弯曲菌，但在随后的鸡群中未分离到。在B1禽舍中，从连续的鸡群中分离出了相同彭纳血清型且呈现相同DNA图谱的空肠弯曲菌菌株。怀疑鸡群是通过水平途径从共同来源感染的，而垂直感染途径不太可能存在。在农场B采取措施控制空肠弯曲菌的水平传播取得了成功。
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