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Abstract ▼ AI-Helper

We investigated the optimal concentration of lidocaine and MS-222 (tricaine methanesulfonate) for the exfoliation and recovery of abalone, Haliotis discus hannai in different shell lengths, for the purpose of preventing the damage of shell and muscle. However, most anaesthetics applied at present ha...

We investigated the optimal concentration of lidocaine and MS-222 (tricaine methanesulfonate) for the exfoliation and recovery of abalone, Haliotis discus hannai in different shell lengths, for the purpose of preventing the damage of shell and muscle. However, most anaesthetics applied at present have a strong toxic effect on abalone. MS-222 is the only anaesthetic which is approved for use in food fish by FDA, and lidocaine belongs to a group of anaesthetic which are used in human medicine. These chemicals were evaluated as anaesthetic for different shell size of abalone. The response varied for different shell size groups (shell length 1, 2 and 3 cm). In this study, we suggested the result that the exfoliation and recovery time by lidocaine and MS-222 in shell length 1 cm group were more shorter than in 3 cm group. In shell length 1 cm group, the optimal concentrations of lidocaine and MS-222 for anaesthetic were 200 ppm and 100 ppm, respectively. Lidocaine and MS-222 are preferable to other conventional abalone anaesthetics since these are cheap, safe and convenient to use.

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