Epidemiological Study and Elucidation on Spread Route of Shrimp Viral Diseases in Southeast Asian Countries

2015 Fiscal Year Final Research Report

• Project/Area Number: 23255013
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: General fisheries
• Research Institution: Japan Fisheries Research and Education Agency
• Principal Investigator: hamano kaoru 国立研究開発法人水産総合研究センター, その他部局等, その他 (40371827)
• Co-Investigator(Kenkyū-buntansha): TSUTSUI Isao 国立研究開発法人・国際農林水産業研究センター, 水産領域, 研究員 (80425529) ; YANO Yutaka 国立研究開発法人・水産研究教育機構, 北海道区水産研究所, 研究員 (70371854) ; TAKAHASHI Toru 熊本保健科学大学, 保険科学部, 教授 (70369122)
• Project Period (FY): 2011-04-01 – 2016-03-31
• Keywords: クルマエビ類 / 疾病 / 伝播経路

Outline of Final Research Achievements

Yellow head virus (YHV) and infectious hypodermal and hematopoietic necrosis virus (IHHNV) infections were detected amongst P.monodon broodstocks used in a nursery in Malaysia. Farmed shrimp in Indonesia was characteristic of infectious myonecrosis virus (IMNV) infection. YHV was frequently detected in farmed shrimps in Thailand. Results of viral gene sequencing revealed that pathogenic viruses spread via vertical transmission from their parents. In cultivated P. vannamei, causative agent of acute hepatopancreatic necrosis disease isolated between 0.8~29% among 6 cultivation ponds in Malaysia. However, co-cultivation of V. parahaemolyticus with acute hepatopancreatic necrosis Disease (VPAHPND) and VP without AHPND resulted in the latter accounting for more than 99.9%, which suggests that VPAHPND is possibly regulated by interstrain competition.

Free Research Field

エビ疾病