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Pathogenicity of rhabdovirus olivaceus (hirame rhabdovirus; HRV) to hirame and salmonid fish

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/38956

Title: Pathogenicity of rhabdovirus olivaceus (hirame rhabdovirus; HRV) to hirame and salmonid fish
Authors: Oseko, Norihisa Browse this author
Yoshimizu, Mamoru Browse this author →KAKEN DB
Kimura, Takahisa Browse this author →KAKEN DB
Issue Date: 1990
Publisher: The Asian Fisheries Society
Journal Title: The Second Asian Fisheries Forum : proceedings of The Second Asian Fisheries Forum, Tokyo, Japan, 17-22 April 1989
Start Page: 639
End Page: 642
Abstract: Pathogenicity of the Rhabdovirus olivaceus (hirame rhabdovirus; HRV) to hirame (Japanese flounder) and salmonid fish (rainbow trout, masu, chum, and coho salmon) was studied. Cumulative mortalities of HRV infected hirame reared at 5, 10, 15 and 20 ℃ were 40, 60, 20 and 0 %, respectively. The highest virus titer in mixed samples of kidney and spleen was obtained from fish reared at 5 ℃. Cumulative mortalities of HRV infected rainbow trout, masu, chum, and coho salmon reared at 12 – 14 ℃ were 55, 30, 25 and 5 %, respectively. Mortality of rainbow trout weighing 0.2, 0.5 and 3.0 g was 100, 55 and 40 %, respectively. Mortality of rainbow trout infected with HRV and IHNV was 40 and 100 %, respectively. Histopathologically, in both hirame and rainbow trout, the kidney exhibited necrotic changes such as nuclear degeneration of hematopoietic cells and hemorrhage in the interstitial tissue; the spleen showed necrosis and hemorrhage in the ellipsoid and pulp. In rainbow trout infected with HRV or IHNV similar changes were observed in the kidney and spleen, but in HRV infected fish, no pathological changes were found in the liver of early stages, and necrosis was not observed in the intestine.
Description: Second Asian Fisheries Forum. 17-22 April 1989. Tokyo, Japan.
Conference Name: Asian Fisheries Forum
Conference Sequence: 2
Conference Place: Tokyo
Type: proceedings
URI: http://hdl.handle.net/2115/38956
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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