Shanker S, Lee A, Sorrell T C
J Hyg (Lond). 1986 Apr;96(2):153-9. doi: 10.1017/s002217240006592x.
The role of broiler eggs in the transmission of Campylobacter jejuni to broiler grow-out flocks was investigated. Six breeder flocks supplying broiler eggs to hatcheries were examined for cloacal carriage of C. jejuni. Of 240 birds tested, 178 (74%) were C. jejuni-positive. Eggs from these birds examined for C. jejuni penetration of the egg shell indicated that 185 of 187 were campylobacter-free. Eggs from breeder flocks of unknown C. jejuni status were also examined for C. jejuni shell penetration. C. jejuni was not isolated from 142 eggs examined. A further 193 hatchery eggs incubated and hatched in the laboratory were campylobacter-free. Six farms containing the progeny of C. jejuni-positive breeder flocks were monitored. Eight hundred and forty birds from 14 flocks in these grow-out farms were campylobacter-free during their 6-week grow-out period. Experimental egg-penetration studies indicated that C. jejuni transmission via the egg is not easily effected. Of 257 eggs surface-challenged with C. jejuni, 162 hatched; all were campylobacter-free. Of 167 eggs injected with C. jejuni, 12 hatched; 2 of these were colonized with C. jejuni. Our data do not support a role for vertical transmission of C. jejuni in commercial broiler production.
研究了肉种蛋在空肠弯曲菌向肉仔鸡育成鸡群传播中的作用。对向孵化场供应肉种蛋的6个种鸡群进行了空肠弯曲菌泄殖腔携带情况检查。在检测的240只鸡中，178只（74%）为空肠弯曲菌阳性。对这些鸡所产的蛋进行空肠弯曲菌穿透蛋壳情况检查，结果显示187枚蛋中有185枚未被空肠弯曲菌污染。还对空肠弯曲菌状况不明的种鸡群所产的蛋进行了空肠弯曲菌穿透蛋壳情况检查。在检查的142枚蛋中未分离到空肠弯曲菌。另外，在实验室孵化和出壳的193枚孵化场蛋也未被空肠弯曲菌污染。对6个饲养空肠弯曲菌阳性种鸡后代的农场进行了监测。在这些育成农场的14个鸡群中的840只鸡在6周的育成期内未被空肠弯曲菌污染。实验性的蛋穿透研究表明，空肠弯曲菌通过蛋传播并不容易发生。用空肠弯曲菌对257枚蛋进行表面接种，其中162枚孵化出雏；所有雏鸡均未被空肠弯曲菌污染。对167枚蛋注射空肠弯曲菌，其中12枚孵化出雏；其中2只被空肠弯曲菌定植。我们的数据不支持空肠弯曲菌在商业肉鸡生产中的垂直传播作用。
