MS-222不同处理方式对史氏鲟和中华鲟麻醉效果的影响

MS-222的药液浸浴和药液鳃部喷洒可作为史氏鲟（Acipenser schrenckii）和中华鲟（Acipenser sinensis）的麻醉方式。在水温16～18℃的条件下,史氏鲟的浸浴有效浓度为90～110 mg/L,浸浴安全时间不超过30 min;中华鲟的浸浴有效浓度为80～100 mg/L,浸浴安全时间不超...

Effects of Different MS-222 Treatments of Anesthesia on Acipenser schrenckii and Acipenser sinensis

MS-222 solution immersion bath and sprinkling on branchiae can be used as anesthetization on Acipenser schrertckii and Acipenser sinensis. Effective concentration of bathing MS-222 solution for Acipenser schrenckii is 90 - 110 mg/L, with secure bathing time controlled in not more than 30 minutes, solution temperaturel6 to 18℃. While for Acipenser sinensis, the effective concentration of bathing MS-222 solution is 80 - 100 mg/L, and secure bathing time not more than 15 minutes, solution temperature being 16 to 18℃. Effective concentration of MS-222 solution for branchia-sprinkling on Acipenser schrenckii is 1500 rag/L, and the minimum operation time is 30 s, with operation time controlled in not more than 60 s. If effective concentration of MS-222 solution for branchia-sprinkling on Acipenser schrenckii reaches 4000 mg/L, operation time should be controlled in not more than 5 s. Branchia - sprinkling approach with MS-222 solution of 20 -40 mg/L can be adopted in short-distance transport of Acipenser schrenckii. MS-222 solution with concentration of 90 - 150 mg/L, the testee of Acipenser schrenckii can＇t recover bathing in the solutiuon more than 4 hours, i.e. suffering biological death.