摘要:作为一种鸡常见疾病,传染性支气管炎无论是发病率还是致死率都较高。传染性支气管炎不仅对养殖户造成严重经济损失,对于当地养殖业也会带来严重影响。该文以鄂尔多斯市的木凯淖土鸡为对象,针对传染性支气管炎诊断详细剖析,并对其防治措施进行研究,旨在为当地养殖户提供诊断与防治方法,避免出现大规模鸡死亡,保障养殖业稳定发展。
关键词:传染性;支气管炎;综合防治
中图分类号:S858.31 文献标识码:B doi:10.3969/j.issn.2096-3637.2021.21.028
Diagnosis and Comprehensive Prevention and Treatment of Infectious Bronchitis in Chickens
Abstract:As a common chicken disease,infectious bronchitis has a high morbidity and mortality.The chicken disease not only causes serious economic losses to the farmers,but also has a serious impact on the local breeding industry.In order to provide diagnosis and control methods for local farmers and avoid the death of large-scale flocks of chickens,the diagnosis and control of the disease were analyzed in detail,and the prevention and control of the disease were studied deeply,taking Mukainao native chickens of Ordos city as an example,to ensure the stable development of aquaculture.
Keywords:infectious,bronchitis,comprehensive prevention and treatment
引言
鸡传染性支气管炎(Infectiousbronchitis,IB),由鸡感染传染性支气管冠状病毒(IBV)引起,为一类具有高度接触特性的急性传染性疾病。不同品种或年龄的鸡都易被病毒感染。该疾病会破坏鸡呼吸道黏膜,造成大肠杆菌等条件性致病菌引发感染。传染性支气管炎毒对于鸡的肌肉、肾脏与免疫系统同样具有危害性。传染性支气管炎具有复杂的临床表现,需要采用合适方法对其详细诊断。
1 当地情况
2020年12月,某养殖场出现28日龄的雏鸡感染呼吸道疾病,所有患病鸡均表现咳嗽与流鼻涕,可以从呼吸道听到明显咕噜声,而在夜间则可听到更为清晰咕噜声。同时,患病鸡的精神状态不佳,采食量大幅度下降。患病鸡远离健康鸡,还会拥挤抱团取暖。在观察到鸡发病后,养殖户及时隔离患病鸡,将青霉素增添至饲料中,并将强力霉素添加至饮用水中,但病情没有得到有效控制,患病鸡数量依然迅速增加,甚至在不同鸡舍出现相似发病病例,发病后期出现10余例患病鸡死亡。……