刺参控温促熟及人工育苗试验

On Accelerating Maturity of Sea Cucumber with Controlled Temperature and Its Artificial Seed rearing

进行了３种升温方法和不同密度对刺参性腺发育、精卵排放时间的影响试验。发现按每天１５℃的升温梯度升至１４℃，恒温３天后，再按每天１℃的升温梯度升至１６５℃恒温培育，促熟密度在２０头／以下，积温达到８００℃以上再采卵育苗，效果较好。控温育苗比常温育苗出苗时间可提前１个月，幼参规格可提高１～２ｃｍ。

An experiment was conducted on effect on the time for the gonad development of the sea cucumber and the time for ovulation and sperm excreting with three kinds of methods for raising temperature in different density for accelerating maturity.The result showed:when raising the temperature 1.5℃ every day till 14℃ to keep the temperature constant three days and then raising the temperature 1℃ every day till 16.5℃ to keep the temperature constant for rearing under the density of 20 ind./ to accelerate maturity as the temperature accumulated above 800℃ to collect the fertilized eggs for seed rearing the effect would be good.The larvae emerged one month early in advance in the controlled temperature,compared the time in the natural temperature for seedrearing,and the size of the young sea cucumber was bigger 1～2 cm long than that in the natural temperature.