猪高热病流行特点和防治
2021-09-27韩颖
韩颖
摘要:猪高热病又称猪无名高热症,是由病毒、细菌、寄生虫混合感染引起的一种急性、热性、高致病性传染病。进入夏秋季节后,由于外界温度显著升高,湿度较大,猪群存在不同程度的热应激反应,导致猪群抗病能力下降,从而给多种病原的混合感染提供条件。该病的典型临床症状是皮肤发红,体温显著升高。临床症状较轻的,机体的生长发育可能受影响,严重的可能会死亡。该文主要论述猪高热病的流行特点、临床症状和病理变化,并提出相应的防控措施。
关键词:猪高热病;流行特点;防治措施
中图分类号:S858.28文献标识码:Bdoi:10.3969/j.issn.2096-3637.2021.22.039
Epidemic Characteristics and Control of Swine High Fever
HAN Ying
(Agricultural Comprehensive Service Center,Dadi Town,Shenzhou City,Shenzhou Hebei 053800,China)
Abstract:Swine fever,also known as unknown swine fever,is an acute,Febrile,highly pathogenic infectious disease caused by a mixture of viruses,bacteria and parasites. After entering the summer and autumn season,because the temperature and humidity of the outside world increased obviously,the pigs had different degree of heat stress reaction,which led to the decrease of the disease resistance of the pigs,thus providing conditions for the mixed infection of various pathogens. The typical clinical symptoms of this disease are redness of the skin and marked increase in body temperature. The clinical symptom is milder,the organism's growth and development may be affected,serious may die. This paper mainly discusses the epidemic characteristics,clinical symptoms and pathological changes of swine high fever,and puts forward the corresponding prevention and control measures.
Keywords:swine high fever,epidemic characteristics,control measures
0引言
目前生豬养殖产业发展进程不断加快,同时各类传染病也呈高发态势,常表现为不同疾病混合感染或继发感染,临床症状复杂,且很多疾病的症状相似,给疾病的诊断和防控带来很大难题。猪高热病主要是由繁殖与呼吸综合症病毒、猪瘟病毒、伪狂犬病毒、圆环病毒、流感病毒、支原体、链球菌、多杀性巴氏杆菌等病原混合感染所致。病原种类多样,常为多种病原混合感染,治疗方案缺乏针对性,不能够做出有效地防范。为有效控制该病,应该从预防角度入手,制定综合防控措施,加强流行病学调查,真正做到未雨绸缪。
1发病特点
夏季猪高热病的传播速度极快,在一个养殖场中往往表现为猪群分阶段发病,通常大猪或者母猪先发病,发病2~5 d后波及全群,10 d左右扩散到整个养殖场。该病一年四季均可发生流行,但……
