PROBLEM TO BE SOLVED: To provide a seafood anesthetization method hardly deteriorating the quality of seafood although using a compact and simple device, capable of anesthetizing for a short time period, and capable of maintaining the anesthetization stably for a prolonged period.SOLUTION: An anesthetization method according to the invention comprises: an anesthetization step of dissolving carbon dioxide of a predetermined quantity necessary for anesthetization of a seafood in water and an oxygen super-saturation step of keeping the oxygen dissolved in water in a super-saturation state. At the oxygen super-saturation step, the quantity of dissolved oxygen in water is kept at 12 mg/l or more in a prescribed proper water temperature region of each seafood.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2017,JPO&INPIT【課題】コンパクトで簡単な装置を使いながら、魚介類の品質を劣化させにくく、短時間で麻酔をかけ、長時間にわたって麻酔を安定して持続できる魚介類の麻酔方法を提供することを目的とする。【解決手段】本発明を適用した麻酔方法は、魚介類の麻酔に要する所定量の二酸化炭素を水中に溶存させる麻酔工程と、水中の溶存酸素を過飽和状態に維持する酸素過飽和工程とを備え、酸素過飽和工程では、各魚介類の所定の適水温域にて、水中の溶存酸素量を12mg/l以上に保持するものである。【選択図】図5
