科研动态

2022年5月，山东省威海市某农场饲养的地方品种鸡突发不明原因大量死亡。为了解疫病情况，查明病因，采取针对性防控措施，对该场点进行了紧急流行病学调查。根据病鸡临床症状、流行病学调查信息及实验室检测结果，确诊该起疫情为鸡球虫感染。通过使用复方磺胺氯哒嗪钠配合维生素C进行治疗，并对养殖环境进行全面消毒，疫情迅速得到控制。调查认为，引进未经检疫的动物导致病原传入是此次疫病发生的主要原因。建议农场引进动物时加强检疫和隔离饲养，定期进行驱虫，及时清洁圈舍和清理粪便，以预防鸡球虫病再次发生。

An Outbreak Investigation on Chicken Coccidiosis in a Farm

In May 2022，a large number of local chickens suddenly died of unknown causes in a farm in Weihai City，Shandong Province. In order to investigate the epidemic situation，find out all possible causes and then control the outbreak，an emergency epidemiological investigation was carried out in the farm. The outbreak was confirmed as an infection with chicken coccidiosis according to the clinical symptoms，epidemiological investigation information and laboratory test results. The outbreak was rapidly controlled through administration with compound sulfadoxine-chloropyridazine sodium together with vitamin C and thorough disinfection for the breeding environment. It was investigated that the outbreak was mainly caused by the pathogens introduced along with imported chickens without quarantine. Therefore，the farm was recommended to strengthen quarantine and isolation breeding when introducing chickens，regularly deworm chickens and promptly clean chicken coops and feces to prevent any possible re-occurrence of chicken coccidiosis.

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