新疆部分规模化养猪场中猪圆环病毒2型和3型监测  

Monitoring of Porcine circovirus (PCV) types 2 and 3 insome large-scale pig farms in Xinjiang

作　　者：齐炜祎 许衡 刘英玉[1] 郑培 夏利宁[1] 刘俊飞 QI Weiyi;XU Heng;LIU Yingyu;ZHENG Pei;XIA Lining;LIU Junfei(College of Animal Medicine,Xinjiang Agricultural University,Urumqi 830052,China;Xinjiang Tekon Animal Husbandry Science and Technology Co.Ltd.,Changji Xinjiang 831100,China)

机构地区：[1]新疆农业大学动物医学学院,乌鲁木齐830091 [2]新疆天康畜牧科技有限公司,新疆昌吉831100

出　　处：《新疆农业科学》2025年第2期502-509,共8页Xinjiang Agricultural Sciences

基　　金：丝绸之路经济带创新驱动发展试验区、乌昌石国家自主创新示范区科技发展项目-优质畜产品产业集群-新疆生猪产业链关键技术研发及集成示范(2022LQ01003);“天山英才”培养计划“三农”骨干人才培养专项“新疆规模化猪场常见呼吸道细菌性疾病的病原检测及临床用药指导”。

摘　　要：【目的】分析新疆圆环病毒2型(Porcine circovirus type 2,PCV2)和3型(Porcine circovirus type 3,PCV3)的流行状况。【方法】在2022年10月~2023年9月,采用荧光定量PCR对采集的7个规模化养猪场的1403份样品进行检测和测序。【结果】PCV2总体阳性率为3.20%(45/1403),PCV3总体阳性率为33.00%(463/1403),PCV2和PCV3混合感染率为7.84%(11/1403)。C场PCV2和PCV3阳性检出率最高,PCV2为7.46%(10/134),PCV3为64.18%(36/134),PCV2和PCV3混合感染率为3.73%(5/134)。乳猪睾丸液检出PCV2和PCV3阳性率最高,PCV2阳性率为4.78%(25/523);PCV3检出率为57.36%(300/523)。PCV2和PCV3在一年四季中检出率均较高,且PCV3毒株为PCV3b和PCV3c型。【结论】新疆部分规模化养猪场中存在PCV3感染,PCV3流行率远高于PCV2,PCV3流行毒株为PCV3b和PCV3c型。【Objective】To investigate the prevalence of Porcine circovirus type 2(PCV2)and Porcine circovirus type 3(PCV3)in Xinjiang.【Methods】From October 2022 to September 2023,1403 samples from 7 large-scale pig farms were detected and sequenced by fluorescent quantitative PCR.【Results】The overall positive rate of PCV2 was 3.20%(45/1403),the overall positive rate of PCV3 was 33.00%(463/1403),and the combined infection rate of PCV2 and PCV3 was 7.84%(11/1403).The positive detection rate of PCV2 and PCV3 in C field was the highest,with PCV27.46%(10/134),PCV364.18%(36/134),and PCV2 and PCV3 mixed infection rate 3.73%(5/134).The positive rate of PCV2 and PCV3 was the highest,and the positive rate of PCV2 was 4.78%(25/523).The detection rate of PCV3 was 57.36%(300/523).The detection rates of PCV2 and PCV3 were high in all seasons,and the PCV3 strain was PCV3b and PCV3c.【Conclusion】PCV3 infection has been found in some large-scale pig farms in Xinjiang and the prevalence rate of PCV3 is much higher than that of PCV2,and PCV3 strain is PCV3b and PCV3c.

关 键 词：圆环病毒3型 圆环病毒2型 荧光定量PCR 猪 

分 类 号：S852.3[农业科学—基础兽医学]