2015—2017年天津市虾肝肠胞虫流行情况调查
Investigation on Prevalence Status of Enterocytozoon Hepatopenaeiin Tianjin from 2015 to 2017
  
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中文摘要:
      为了解天津市对虾肝肠胞虫(EHP)流行情况,2015—2017年从汉沽区、大港区、塘沽区、宁河区、静海区、津南区和西青区等7个对虾养殖主产区,采集养殖对虾及饵料生物等样品,应用PCR法进行EHP检测。检测结果显示:在2015—2017年分别检测的79、105、140批次样品中,EHP阳性率分别为56.96%、69.52%、29.28%;在凡纳滨对虾的仔虾、幼虾、中成虾养殖阶段均可检出EHP,但幼虾、中成虾的阳性率高于仔虾;鱿鱼、沙蚕和桡足类等对虾饵料生物携带有EHP。结果表明,天津市EHP流行率呈显著下降趋势,说明严格控制亲虾品质及引进无病毒感染种苗、加强检疫监测等措施,可以有效控制EHP流行。
英文摘要:
      In order to recognize the prevalence status of Enterocytozoon hepatopenaei(EHP)in Tianjin City,during 2015 to 2017,the prawns and their bait organism samples were collected from the main prawn cultivating areas in Hangu,Dagang,Tanggu,Ninghe,Jinghai,Jinnan and Xiqing district,then PCR method was used for conducting EHP detection. According to the results,from 2015 to 2017,there were 79,105 and 140 batches of prawns were detected,and the EHP positive rates of these 3 batches of prawns were 56.96%,69.52% and 29.28%,respectively. EHP could be detected at the larva,juvenile and adult stage of the whole growth phase of prawns,but the EHP positive rates in juvenile and adult prawns were higher than that in larvae of prawns. EHP was also found in the bait organisms,such as squids,silkworms and copepods. As a conclusion,the prevalence of EHP in Tianjin City showed a significant downward trend,indicating EHP can be effectively controlled by strictly controlling the quality of parent prawns,introducing prawn seedlings without virus infection and strengthening inspection,quarantine and surveillance.
作者单位
许杰,霍文慧,邓威,刘群,孙悦,杨凯,薛淑霞,李娜  
中文关键词:  虾肝肠胞虫  对虾  流行  天津
英文关键词:EHP  penaeus  prevalence  Tianjin
基金项目:天津市科技计划项目(15ZXBFNC00280)
DOI:10.3969/j.issn.1005-944X.2018.08.004
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