魚類麻酔剤2-アミノ-4-フェニールチアゾールの中枢作用性に関する行動解析〔英文〕

概要

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According to the modified MCFARLAND's criterion and the diagrammatical display procedure, behavioral analyses of the central nervous system depressant activity of 2-amino-4-phenylthiazole, a piscine anesthetic, were carried out. Carp (Cyprinus carpio) as a representative of a fresh water type, rainbow trout (Salmo gairdnerii irideus) as a mid type between fresh and salt water and yellowtail (Seriola quinqueradiara) as a salt water type were used. The analyses resulted in establishing a methodological standardization procedure for the application of anesthetics upon a given fish for handling and transportation for aquacultural use. For the bathing anesthetization of carp, a concentration at 30-40ppm provided good anesthesia for 20-40min. For the bathing sedation, a concentration at 12ppm provided good sedation for 3-72hr. For the bathing anesthetization of rainbow trout, a concentration at 20-30ppm provided good anesthesia for 40min to 3hr and for the bathing sedation, a concentration at 10ppm provided good sedation for 24hr. For the bathing anesthetization of yellowtail, a concentration at 15-20ppm provided good anesthesia for 10-25min. For the bathing sedation, a concentration at 8ppm provided good sedation for 4.5hr.
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