St Amand Joan A, Cassis Rashed, King Robin K, Annett Christianson Colleen B
a Alberta Agriculture and Forestry, Animal Health and Assurance Branch , Alberta , Canada.
b Alberta Agriculture and Forestry, Food Safety Branch , Alberta , Canada.
Avian Pathol. 2017 Dec;46(6):594-601. doi: 10.1080/03079457.2017.1311989. Epub 2017 Jul 17.
Some Salmonella spp. are zoonotic, a frequent cause of foodborne illness in Canada, and known to infect humans through contaminated poultry and poultry products. Certain serotypes of Salmonella spp. have been demonstrated to be vertically transmitted from hen to egg. The incidence of Salmonella spp. isolation in the flock has been correlated to its isolation from the environment. Twenty-one producers were enrolled in this study to examine the occurrence of Salmonella spp. in 48 table egg layer flocks housed in 35 barns in Alberta. The purpose of this study was to: (i) identify Salmonella serotypes isolated from the environment of table egg layer facilities in Alberta and (ii) record the prevalence of Salmonella spp. across eight defined environmental sampling points. Salmonella spp. were isolated from the environment of 20/35 barns representing 29/48 flocks. The most common serotypes isolated were S. Heidelberg, S. Kentucky and S. Mbandaka. The order of most to least contaminated sample location was manure belts (54.1%), feeders (47.9%), feed motors (45.8%), egg belts and walls (41.7%), fans (35.0%), cage bottoms (31.3%) and lobbies (27.1%). Salmonella spp. were isolated from 7/7 barns post cleaning and disinfection, demonstrating the persistence of this organism in the environment and the need for effective eradication protocols.
某些沙门氏菌属是人畜共患病原体，是加拿大食源性疾病的常见病因，已知可通过受污染的家禽和家禽产品感染人类。已证明某些血清型的沙门氏菌属可从母鸡垂直传播至鸡蛋。鸡群中沙门氏菌属的分离率与其在环境中的分离率相关。本研究招募了21名生产者，以检查艾伯塔省35个鸡舍中48个蛋鸡群中沙门氏菌属的发生情况。本研究的目的是：(i) 鉴定从艾伯塔省蛋鸡设施环境中分离出的沙门氏菌血清型，以及 (ii) 记录沙门氏菌属在八个明确的环境采样点中的流行情况。从代表48个鸡群中29个鸡群的35个鸡舍中的20个鸡舍环境中分离出了沙门氏菌属。分离出的最常见血清型为海德堡沙门氏菌、肯塔基沙门氏菌和班达卡沙门氏菌。污染程度从高到低的采样位置顺序为粪带（54.1%）、喂食器（47.9%）、饲料电机（45.8%）、蛋带和墙壁（41.7%）、风扇（35.0%）、笼底（31.3%）和大厅（27.1%）。在清洁和消毒后，从7/7个鸡舍中分离出了沙门氏菌属，这表明该病原体在环境中持续存在，需要有效的根除方案。
