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魚病研究
Vol. 51 (2016) No. Special-issue p. S36-S38

記事言語:

http://doi.org/10.3147/jsfp.51.S36

Proceedings of 9th Symposium on Diseases in Asian Aquaculture

Polycystic lesions have been reported in many different fish species. This paper reports for the first time a case of polycystic lesions in the liver of tilapia. A group of 700 tilapia juveniles of approximately 50 g was obtained from a hatchery in Negeri Sembilan, Malaysia. When they were between 130 and 250 g, they started to show distended abdomen but appetite remained normal. Post-mortem examination on 30 randomly selected tilapia revealed numerous large masses containing jelly-like material in the peritoneal cavity of 33% of the fish. Histopathology revealed typical cystic lesion of liver tissue. This is the first report in hybrid tilapia and is presumed to be the result of a genetic anomaly.

Copyright © 2016 The Japanese Society of Fish Pathology

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