CAJ | 학술논문

在室内养殖条件下,研究了水泥池养殖管角螺幼体的生长特性.结果显示：初孵稚螺早期壳高与螺重的生长速度都很快,旬增长率最高时分别达到186.7%、313.2%,以后生长逐渐减慢.壳高呈对数生长L=21.494lnd＋2.0343（R2=0.9783）;螺重呈幂形生长W=0.0388d2.5069（R2=0.962）;稚螺螺重与壳高之间呈幂函数W=0.0001L2.770 8（R2=0.9569）.不同时期稚螺成活率达到80%以上,壳高长至21.9mm以上,幼螺死亡逐渐减少,成活率均保持在91.6%～99.7%.不同时期的出肉率差别不显著,均达到50%以上.
재실내양식조건하,연구료수니지양식관각라유체적생장특성.결과현시：초부치라조기각고여라중적생장속도도흔쾌,순증장솔최고시분별체도186.7%、313.2%,이후생장축점감만.각고정대수생장L=21.494lnd＋2.0343（R2=0.9783）;라중정멱형생장W=0.0388d2.5069（R2=0.962）;치라라중여각고지간정멱함수W=0.0001L2.770 8（R2=0.9569）.불동시기치라성활솔체도80%이상,각고장지21.9mm이상,유라사망축점감소,성활솔균보지재91.6%～99.7%.불동시기적출육솔차별불현저,균체도50%이상.
The growth characteristics of Hemifusus tuba larvae in early phase are investigated with indoor condition.The results show that the 10 d growth rate outpaces others and the maximal growth rate of 10 d in length at different stages is identified as being 186.7%,the maximal growth rate in weight being 313.2%.But the growth rate decline gradually at the later stages.The logarithm mode is fitted on the basis of body weight and feeding days,which can be expressed as W=21.494lnd＋2.034 3（R2=0.978 3）.The power mode is fitted on the basis of body length and feeding days,which is L=0.038 8d2.506 9（R2=0.962）.The power model is fitted on the basis of body weight and length,that is,W=0.000 1L2.770 8（R2=0.956 9）.The viability in different stages is found to be more than 80%.When body length is beyond 21.9 mm,the death of larvaes reduces gradually and the survival rate range from 91.6% to 99.7%.The meat output ratio at different stages is more than 50%.