摘要
本试验建立一种可同时检测猪圆环病毒2型(PCV-2),猪细小病毒(PPV),猪繁殖与呼吸综合征病毒(PRRSV),猪瘟病毒(CSFV)4种病毒的多重PCR方法。对于每一种特定的病毒,用4对寡核苷酸引物均能特异扩增其目的片段。以含有病毒目的片段的质粒为模板,测定了多重PCR的检测灵敏度,PRRSV和CSFV检测最低限是48 pg,而PPV和PCV-2为0.48 pg。利用建立的多重PCR方法对具有产自有繁殖障碍母猪的仔猪或具有呼吸障碍症状的76个仔猪样本进行检测。检出了4种病毒的存在,其中26个样本(34.2%)同时感染了2种以上病毒。结果表明多重PCR方法检测猪混合感染的病毒,是一种快速、灵敏、低成本、高效率的病原学诊断工具。
A multiplex polymerase chain reaction （PCR）-based method was designed for simultaneous detection of four main viruses involved in respiratory and/or reproductive failure in piglets （porcine circovirus type 2 [PCV- 2], porcine parvovirus [PPV], porcine reproductive and respiratory syndrome virus[PRRSV], and classical swine fever virus [CSFV]）. Each of the four pairs of oligonucleotide primers exclusively amplified the targeted fragment of the specific viruses. The sensitivity of the multiplex PCR using purified plasmid constructs containing the specific viral target fragments was 48 pg for PRRSV and CSFV,0.48 pg for PPV and PCV-2. A total of 76 specirnens from piglets with symptoms of respiratory and/or reproductive failure were collected in China during June 2006 to july 2007. All specimens were detected at least one of 4 viruses by multiplex PCR. Coinfections with these viruses were identified in 26 specimens （34.2% ）. Therefore, this method may he a rapid, sensitive, and effective etiological diagnostic tool for the routine surveillance of viral infections in pigs.
出处
《中国兽医学报》
CAS
CSCD
北大核心
2009年第10期1237-1241,共5页
Chinese Journal of Veterinary Science
基金
浙江省科技计划资助项目(2008C22081)
浙江省科技攻关重点项目(2005C22032)
浙江理工大学科研基金资助项目(06162742Y)
关键词
猪圆环病毒2型
猪细小病毒
猪繁殖与呼吸综合征病毒
猪瘟病毒
多重PCR
porcine cireovirus type 2
porcine parvovirus
porcine reproductive and respiratorysyndrome virus
classical swine fever virus
multiplex polymerase chain reaction
作者简介
姜永厚（1971-），男，副教授，博士
通讯作者，E-mail：hwshang@cjlu．edu．cn
