鲫鱼捕捞后保活试验初报

STUDY ON KEEPING ALIVE OF CRUCIAN CARP AFTER CATCHING

为捕捞后的鲫鱼有较高的存活率。研究影响鲫鱼捕捞后存活率的几个因素,包括存养密度、水温、气体贮藏、敞口、密封、水体杀菌。检测水中氧气浓度。鲫鱼短期存活的适合条件:鲫鱼与水的质量比为1∶3~1∶4,敞口存放可以延长鲫鱼寿命,温度为5℃时可以显著延长鱼存活时间,充CO2∶O2为1∶1和充O2都可以延长鲫鱼寿命。鲫鱼在水中缺氧时水体溶解氧为0.6 mg/L^0.87 mg/L。

For increasing the living rate of Crucian Carp after catching, some factors of affecting Crucian Carp living rate were studied in the article, including Crucian Carp growth density, water temperature, gas storage, unsealing treatment, sealing treatment, water sterilization. The consistency of deliquescence oxygen in water was determined.The condition for increrasing alive of Crucian Carp in the experiment was found as follows： the quality ratio of fish and water as 1：3-1：4 suited for Crucian Carp alive, keeping Crucian Carp in water unsealing could increase its survival time. The survival time of Crucian Carp in 5 ℃ would increase significantly, packed in CO2 CO2：O2 as 1：1 or O2 environment could inrease Crucian Carp survival time. The concentration of deliquescence oxygen in water as 0.6 mg/L -0.87 mg/L could cause Crucian Carp oxygen deficit.