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Chinese Agricultural Science Bulletin ›› 2019, Vol. 35 ›› Issue (21): 132-136.doi: 10.11924/j.issn.1000-6850.casb18040020

Special Issue: 水产渔业

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The Anesthetic Effect of MS-222 on Juvenile Barbuscapito

  

  • Received:2018-04-04 Revised:2019-07-09 Accepted:2018-06-22 Online:2019-08-13 Published:2019-08-13

Abstract: This study aims to investigate the anesthetic effect of MS- 222(Tric-ainemethanesulphonate) on juvenile Barbuscapito. At the temperature of (26±0.5)℃, the anesthetic effects of different concentrations of MS- 222 on juvenile Barbuscapito are observed, including behavior changes during anesthesia and resuscitation, and changes of respiratory frequency during anesthesia. At the same time, the effects of different air exposure times on recovery time and recovery rate of anesthetized juveniles are observed. The test results showed that the anesthetic process of juveniles of Barbuscapito was divided into 6 stages and the recovery process was divided into 4 stages. The effective anesthetic concentration of MS-222 for juvenile Barbuscapito was 120-160 mg/L. With the increase of anesthetic time and concentration, the respiratory rate of juvenile Barbuscapito showed a decreasing trend overall. For juvenile fish entering the 5th anesthetizing stage, when the air exposure time was within 4 min, the recovery time decreased with the increase of the air exposure time; when the exposure time was more than 6 min, the recovery time increased with the exposure time; none of the experiment fish died when exposed within 10 minutes. Experiments prove that MS-222 has good anesthetic effect on juvenile Barbuscapito.