摘要
为了解2019—2022年广西地区猪场主要病毒性传染病的流行特征,应用PCR及RT-PCR方法对近四年临床上送检的疑似猪瘟病毒(CSFV)、猪繁殖与呼吸障碍综合征病毒(PRRSV)、猪圆环病毒2型(PCV-2)、猪圆环病毒3型(PCV-3)、猪伪狂犬病毒(PRV)、猪传染性胃肠炎病毒(TGEV)、猪流行性腹泻病毒(PEDV)和猪轮状病毒(PoRV)感染的1046份病料进行病原检测,并开展流行病学分析。结果显示:CSFV、PRRSV、PCV-2、PCV-3、PRV、TGEV、PEDV和PoRV的阳性率分别是3.91%(21/537)、20.46%(143/699)、29.90%(116/388)、16.10%(81/503)、27.75%(121/436)、2.10%(8/381)、28.50%(61/214)和13.74%(18/131)。其中,PCV-2和PEDV的感染率呈逐年递减的趋势,TGEV的感染率呈逐年上升的趋势。单一性感染中PRV和PEDV感染率较高,平均感染率为别为13.53%,18.22%;双重感染中PRRSV和PCV-2的感染率最高,平均感染率达11.34%。其次为PEDV和PoRV二重感染,平均感染率为8.05%。PCV-3和PEDV的感染率在春季较高,分别为18.80%和40.00%。PRRSV、PCV-2、PRV、TGEV、PoRV的感染率在冬季比较高,分别为24.40%、40.57%、37.30%、3.23%、19.44%。结果表明:对广西猪场危害较为严重的病毒性疫病为PRRSV、PCV-2、PRV和PEDV,需要加强病原的监测和提高综合防控能力,以减少疾病的发生及经济损失。
In order to understand the epidemic characteristics of major viral infectious diseases of pig farms in Guangxi from 2019 to 2022,this study applied the PCR and RT-PCR method to detect the pathogens of 1046 samples suspected CSFV(swine fever virus),PRRSV(porcine reproductive and respiratory syndrome virus),PCV-2(porcine circovirus virus type 2),PCV-3(porcine circovirus virus type 3),PRV(pseudorabies virus),TGEV(transmissible gastroeneritis of pigs virus),PEDV(porcine epidemic diarrhea virus)and PoRV(porcine rotavirus)infections in recent four years,and to carry out epidemiological analysis.The results showed that CSFV,PRRSV,PCV-2,PCV-3,PRV,TGEV,PEDV and PoRV positive rate was 3.91%(21/537),20.46%(143/699),29.90%(116/388),16.10%(81/503),27.75%(121/436),2.10%(8/381),28.50%(61/214)and 13.74%(18/131)respectively.The infection rate of PCV-2 and PEDV was decreasing year by year,the infection rate of TGEV increasing year by year.The higher infection rate of single infection were PRV and PEDV,with an average infection rate of 13.53%and 18.22%,The highest rate of mixed infection was PRRSV and PCV-2,with an average infection rate of 11.34%,The second rate of mixed infection was PEDV and PoRV,the average infection rate was 8.05%.The infection rate of PCV-3 and PEDV was higher in spring,with18.80%and 40.00%respectively.The infection rate of PRRSV,PCV-2,PRV,TGEV and PoRV was higher in winter,with 24.40%,40.57%,37.30%,3.23%and 19.44%respectively.The results show that PRRSV,PCV-2,PRV and PEDV are the main viral diseases with serious damage to pig farms in Guangxi.It is necessary to strengthen pathogen monitoring and improve comprehensive prevention and control ability,in order to reduce the incidence of disease and economic losses.
作者
张碧
袁翠平
胡帅
梁昌良
曾家家
马宇毅
植淇业
贺会利
Zhang Bi;Yuan Cui-ping;Hu Shuai;Liang Chang-liang;Zeng Jia-jia;Ma Yu-yi;Zhi Qi-ye;He Hui-li(Guangxi Veterinary Research Institute,Guangxi Key Laboratory of Veterinary Biotechnology,Nanning,Guangxi 530001,China;Yulin Aquaculture Technology Extension Station,Yulin,Guangxi 537000,China;Pingxiang Town Rural Revitalization Service Center of Pingxiang City,Chongzuo,Guangxi 532600,China)
出处
《广西农学报》
2023年第3期35-41,共7页
Journal of Guangxi Agriculture
关键词
广西
病毒性疫病
流行病学
混合感染
季节
Guangxi
viral diseases
molecular epidemiology
mixed infection
season
