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Title: ニジマスにおけるヘルペスウイルス病の発生
Other Titles: Outbreak of salmonid herpesviral disease in cultured rainbow trout
Authors: 降幡, 充1 Browse this author
細江, 昭2 Browse this author
武居, 薫3 Browse this author
小原, 昌和4 Browse this author
中村, 淳5 Browse this author
本西, 晃6 Browse this author
吉水, 守7 Browse this author →KAKEN DB
Authors(alt): Furihata, Mitsuru1
Hosoe, Akira2
Takei, Kaoru3
Kohara, Masakazu4
Nakamura, Jun5
Motonishi, Akira6
Yoshimizu, Mamoru7
Keywords: Salmonid herpesviral disease
Oncorhynchus mykiss
Salmonid herpesvirus 2
Rainbow trout
Issue Date: 20-Mar-2003
Publisher: 日本魚病学会
Journal Title: 魚病研究
Journal Title(alt): Fish pathology
Volume: 38
Issue: 1
Start Page: 23
End Page: 25
Publisher DOI: 10.3147/jsfp.38.23
Abstract: From February 2000 to January 2001, epizootics occurred in cultured rainbow trout Oncorhynchus mykiss weighing 12 - 1, 503 g at 18 fish farms in Nagano Prefecture, Japan. A virus was isolated from diseased fish in RTG-2 cells with a CPE characterized by syncytia. High infectivity titers were demonstrated in the main internal organs and multiple necrotic foci were observed in the liver. The virus was identified as salmonid herpesvirus 2 by serological tests and PCR. Based on these results, the epizootic was diagnosed as salmonid herpesviral disease. In more than 80% cases, the outbreaks were linked with introductions of live fish.
長野県下で養殖されていたニジマスに高い死亡率をもたらす疾病が発生した。18養鱒場の12~1,503gの魚に発症が見られ, 病魚からRTG-2細胞に多核巨細胞の形成を特徴とするCPEを示すウイルスが分離された。主要臓器のウイルス感染価は高く, 肝臓には多数の壊死病素が観察された。分離ウイルスは中和試験及びPCRによりsalmonid herpesvirus2に同定され, 本病はサケ科魚類の2型ヘルペスウイルス病と診断された。発生例の80%が種苗等, 魚の導入に起因していた。
Type: article
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 吉水 守

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