Screening for Salmonella in backyard chickens
Screening for Salmonella in backyard chickens
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DOI：
10.1016/j.prevetmed.2015.03.019
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发表时间：
2015-06-15
影响因子：
2.6
通讯作者：
Chousalkar, Kapil
中科院分区：
文献类型：
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作者：
Manning, Johanna;Gole, Vaibhav;Chousalkar, Kapil
沙门氏菌病是一种重要的人畜共患疾病，对蛋鸡行业有相当大的经济影响。关于沙门氏菌在后院鸡群中流行的信息有限。目前进行的研究是为了确定沙门氏菌在后院鸡中的流行程度，以及所发现的任何血清型的相关毒力。从南澳大利亚30个后院鸡群中抽取了115个样本进行筛选。4只鸡沙门氏菌检出阳性，总体检出率为10.4%。鸟类个体水平估计患病率为0.02% （95% CI 0.025 ~ 0.975）。分离到的血清型分别为Agona沙门氏菌、2ser21:z10:z6 （Wandsbek）沙门氏菌和bovismorificans沙门氏菌。所有沙门氏菌分离株均检测出prgH、orfL和spiC基因阳性。沙门氏菌subsp 2ser 21:z10:z6 （Wandsbek）耐药程度最高，对氨苄西林和头孢菌素耐药，对氟苯酚耐药程度中等。所有阿戈纳沙门氏菌对氨苄西林均有中等耐药，而牛病沙门氏菌对所有抗生素均敏感。随着人们对饲养后院鸡的兴趣的增加，目前的研究强调了与家庭鸡群有关的沙门氏菌的人畜共患风险。Elsevier B.V.版权所有
Salmonellosis is a significant zoonotic disease which has a considerable economic impact on the egg layer industry. There is limited information about the prevalence of Salmonella spp. in backyard chickens. The current study was conducted to determine the prevalence of Salmonella in backyard chickens, and the associated virulence of any serovars identified. Hundred and fifteen pooled samples from 30 backyard flocks in South Australia were screened. Four flocks tested positive for Salmonella spp. The overall Salmonella isolation rate in the current study was 10.4%. The estimated prevalence at individual bird level was 0.02% (95% CI 0.025-0.975). The serovars isolated were Salmonella Agona, Salmonella subsp 2 ser 21:z10:z6 (Wandsbek) and Salmonella Bovismorbificans. All Salmonella isolates tested positive for the prgH, orfL and spiC genes. The Salmonella subsp 2 ser 21:z10:z6 (Wandsbek) had the most antibiotic resistance, being resistant to ampicillin and cephalothin and having intermediate resistance to florphenicol. All of the Salmonella Agona had intermediate resistance to the ampicillin, while the Salmonella Bovismorbificans were susceptible to all antibiotics tested. With the increased interest of keeping backyard chickens, the current study highlights the zoonotic risk from Salmonella spp. associated with home flocks. Crown Copyright (C) 2015 Published by Elsevier B.V. All rights reserved.