The Efficacy of MS-222 as an Anesthetic for Juvenile Siberian Sturgeon (Acipenser baerii Brandt 1869)
文献类型： 会议论文
第一作者： Guangpeng Feng
作者： Guangpeng Feng 1 ; Ping Zhuang 1 ; Jianyi Liu 1 ; Longzhen Zhang 1 ; Tao Zhang 1 ;
作者机构： 1.Laboratory of Biology and Germplasm in AquacultureEast China Sea Fisheries Research Institute, Chinese Academy of Fishery SciencesShanghai 200090, China
关键词： sturgeon;tricaine methanesulfonate;opercular rate;behavior;anesthetic concentration
会议名称： International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2011)
主办单位：
页码： 1250-1253
摘要： Sturgeon represent an important evolutionary link between primitive elasmobranchs and more advanced teleosts. In the present study, we examined the anesthetic effects of tricaine methanesulfonate (MS-222) on juvenile Siberian sturgeon (Acipenser baerii) and the recovery process. Juvenile fish were placed in tanks containing different concentrations of MS-222 (80, 100, 120, 140, and 160 mg/L), and we observed their behavioral responses and changes in respiratory rates during anesthesia and recovery. We found an inverse relationship between the amount of time that is required to enter each stage of anesthesia and MS-222 concentrations. All fish entered Stage 4 of anesthesia within 234-650 s with MS-222 concentrations from 80 to 160 mg/L. During the recovery process, the mean times required for Stages II and HI were 161-282 s and 218-441 s, respectively. Furthermore, the mean times after the 120 mg/L treatment were the shortest among the five experimental groups. In addition, the opercular rates of fish were all significantly decreased in Stage 4 of anesthesia, and returned to normal values in Stage III of recovery. Based on the induction and recovery times, we submit that the appropriate anesthetic concentration of MS-222 for juvenile Siberian sturgeon may be –120 mg/L. At this concentration, MS-222 induced anesthesia in ～6 min, and recovered within ～3 min.
分类号： G202-53
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