Van Alstine W G, Arp L H
Veterinary Diagnostic Laboratory, Iowa State University, Ames 50011.
Am J Vet Res. 1987 Nov;48(11):1574-6.
Four-week-old Bordetella avium-infected and B avium-free turkeys were inoculated intratracheally with a suspension of fimbriated or nonfimbriated Escherichia coli. Numbers of E coli associated with tracheal sections were determined at postinoculation hour (PIH) 1 or 6. Significantly (P less than 0.05) greater numbers of E coli were isolated from the tracheas of B avium-infected turkeys compared with numbers in B avium-free turkeys. In B avium-free turkeys, tracheal associated E coli were 90% less at PIH 6 compared with that at PIH 1. However, in B avium-infected turkeys, numbers of E coli were not affected by postinoculation time. Seemingly, B avium-infected turkeys had reduced capacity to clear E coli from the trachea.
将4周龄感染鸟博德特氏菌和未感染鸟博德特氏菌的火鸡经气管内接种有菌毛或无菌毛的大肠杆菌悬液。在接种后1小时（PIH）或6小时测定与气管切片相关的大肠杆菌数量。与未感染鸟博德特氏菌的火鸡相比，从感染鸟博德特氏菌的火鸡气管中分离出的大肠杆菌数量显著更多（P<0.05）。在未感染鸟博德特氏菌的火鸡中，接种后6小时气管相关大肠杆菌数量比接种后1小时减少了90%。然而，在感染鸟博德特氏菌的火鸡中，大肠杆菌数量不受接种后时间的影响。似乎，感染鸟博德特氏菌的火鸡清除气管中大肠杆菌的能力降低。
