Prachantasena S, Charununtakorn P, Muangnoicharoen S, Hankla L, Techawal N, Chaveerach P, Tuitemwong P, Chokesajjawatee N, Williams N, Humphrey T, Luangtongkum T
Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.
Department of Veterinary Public Health, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, Thailand.
Poult Sci. 2017 Apr 1;96(4):980-985. doi: 10.3382/ps/pew364.
Campylobacter are bacteria associated with human foodborne disease worldwide. Poultry and poultry products are generally considered as a main source of these organisms. Compared to temperate zones, baseline information on Campylobacter in tropical regions is limited. Thus, the objectives of the present study were 1) to determine the prevalence of Campylobacter in Thai broiler flocks and 2) to investigate the association between climatic factors (i.e., rainfall, ambient temperature, and relative humidity) and Campylobacter colonization status of broiler flocks in Thailand. A total of 442 commercial broiler flocks reared in the central and northeastern regions of Thailand during 2012 to 2014 were investigated. Campylobacter positive status was identified in 252 examined flocks (57.01%; 95% CI 52.39 to 61.63%). Prevalence of Campylobacter in the northeastern region (54.46%; 95% CI 44.76 to 63.83%) was slightly lower than that of the central region (57.77%; 95% CI 52.47 to 62.90%). More than 65% of Campylobacter positive flocks in the central and northeastern regions had within-flock prevalence higher than 75%. Generalized estimating equations (GEE) revealed that the increased rainfall and relative humidity were associated with the increase of Campylobacter colonization in broiler flocks (P ≤ 0.05), while no relationship between ambient temperature and Campylobacter colonization status was identified.
弯曲杆菌是一种与全球人类食源性疾病相关的细菌。家禽及其产品通常被认为是这些病菌的主要来源。与温带地区相比，热带地区弯曲杆菌的基础信息有限。因此，本研究的目的是：1）确定泰国肉鸡群中弯曲杆菌的流行情况；2）调查气候因素（即降雨量、环境温度和相对湿度）与泰国肉鸡群弯曲杆菌定植状况之间的关联。对2012年至2014年期间在泰国中部和东北部地区饲养的442个商业肉鸡群进行了调查。在252个受检鸡群中检测到弯曲杆菌呈阳性（57.01%；95%置信区间为52.39%至61.63%）。东北部地区弯曲杆菌的流行率（54.46%；95%置信区间为44.76%至63.83%）略低于中部地区（57.77%；95%置信区间为52.47%至62.90%）。中部和东北部地区超过65%的弯曲杆菌阳性鸡群，其鸡群内流行率高于75%。广义估计方程（GEE）显示，降雨量和相对湿度的增加与肉鸡群中弯曲杆菌定植的增加有关（P≤0.05），而未发现环境温度与弯曲杆菌定植状况之间存在关联。
