| 摘要 |
PROBLEM TO BE SOLVED: To provide a new marking agent for fish body, available at a low cost, easily usable even in the case of marking a large number of fish bodies and having food sanitation safety and long mark-retention period and provide a new method for the marking of fish body capable of reducing the fish marking cost and reducing the mortality of specimen fish compared with conventional method. SOLUTION: The marking agent for fish body is produced by dispersing powder of water-insoluble coloring material in 0.9-1.2 wt.% agar solution in an amount of 10 wt.% in terms of outer percentage. The marking agent is sucked in an injection cylinder and injected under the skin (preferably in a cavity part) of the fish body in an amount of 0.2-0.5 mL per one injection site to mark the fish body. The method is preferably used for the marking of Heterosomata such as flounder and flatfish. COPYRIGHT: (C)2007,JPO&INPIT
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