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中国大鲵子二代适应能力及生长优势的研究

Research on Chinese Giant Salamander F₂ Adaptability and Growth Advantages

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【Author】 LIU Jian-yi~ 1,2 ,TAN Yong-an~3,TAN Qi-sen~3,HE Xin-liang~3, ZHANG Yuan-chun~3,LIU Ming-guo~3 (1.Key Laboratory of Freshwater Fish Germplasm Resources and Biotechnology,Ministry of Agriculture of China,Yangtze Rive Fisheries Research Institute,Chinese Academy of Fishery Sciences,Jingzhou,Hubei Province 434000;2.Freshwater Fisheries Research Center,Chinese Academy of Fisheries Science;3.Guangzhou Huabao Rare Marine Products Co.Ltd)

【机构】农业部淡水鱼类种质资源与生物技术重点开放实验室；广州华宝珍稀水产养殖有限公司；广州华宝珍稀水产养殖有限公司中国水产科学研究院长江水产研究所；湖北荆州434000；中国水产科学研究院淡水渔业研究中心；江苏无锡；

【摘要】 2002年成功孵化出大鲵子二代1260尾,经过8个月生长,随机抽取172尾全长13~15cm、体重25~35g子二代与172尾全长14~16·5cm、体重30~40g野生代进行环境适应能力和生长速度的对比试验。结果表明,子二代在耐高温、耐低氧、耐不良水质、耐盐度、耐酸碱性、耐苦味饵料方面比野生代有明显优势,说明子二代适应能力更强,易于饲养。从生长优势方面,表现出大鲵子二代生长速度快,生长指标为4·4928,而野生代生长指标为3·4714。更多还原

【Abstract】 1260 giant salamander F₂ were successfully hatched from eggs in 2002.After 8 months growth,a random sample of above 172 F₂ with overall length of 13～15cm and weight of 25～35g and 172 wild ones with overall length of 14～16.5 cm and weight of 30～40g were conpared with the environment adaptability and grow speed.The results showed that the F₂ had a lot of advantages in resistance to high temperature,low oxygen,polluted water,salinity,acid and alkaline and the bitter taste bait,indicating the F₂;would easy to be bred.The growth index sign of giant salamander F₂ was 4.4928,but the wild one 3.4714.更多还原