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白斑综合征病毒(white spot syndrome virus,WSSV)和传染性皮下及造血组织坏死病毒(infectious hypodermal and haematopoietic necrosis virus,IHHNV)是危害较大的两种对虾病毒,每年给对虾养殖业造成巨大经济损失.凡纳滨对虾具有生长快、肉味鲜美、出肉率高等特点,目前是我国主要的对虾养殖品种.本文对采自烟台不同养殖区域的43份凡纳滨对虾样品进行了WSSV和IHHNV的PCR检测,结果表明,31份样品感染了一种或两种病毒,病毒感染率达72%;24份样品同时感染了WSSV和IHHNV两种病毒,占检测样品总数的56%.该检测结果说明,WSSV和IHHNV仍然是目前严重危害凡纳滨对虾养殖的对虾病毒,且凡纳滨对虾同时感染WSSV和IHHNV的情况较为普遍.
White spot syndrome virus (WSSV) and infectious hypodermal and haematopoietic necrosis virus (IHHNV) are the two most harmful shrimp viruses and cause huge economic losses to the shrimp culture industry each year The shrimp Litopenaeus vannamei has characteristics of fast growth, delicious meat and high meat yield, and is currently the main shrimp culture in China.In this paper, 43 samples of Litopenaeus vannamei collected from different culture areas of Yantai were identified as WSSV and IHHNV PCR results showed that 31 samples were infected with one or two viruses, the virus infection rate was 72%; 24 samples were infected with WSSV and IHHNV two viruses, accounting for 56% of the total number of test samples. The test results show WSSV and IHHNV are still the shrimp viruses that presently pose serious risks to Litopenaeus vannamei culture and that L. vannamei is infected with both WSSV and IHHNV at the same time.