中国对虾继饥饿后的补偿生长研

1999年7至8月份,在25.0±0.5℃条件下对中国对虾（湿重，1.454±0.150g）进行了不同时间的饥饿处理后再供食的恢复生长实验。对照组C连续饱食投喂32d；处理组S4、S8和S12分别饥饿4、8和12d后再饱食投喂28、24和20d。主要结果如下饥饿结束时各处理组的干重和湿重显著低于对照组（P<0.05）；实验结束时S4组和对照组间的干重和湿重差异不显著（P>0.05），而S8和S12两组的干重和湿重仍显著低于对照组（P<0.05）；恢复生长后各处理组的湿重摄食率显著高于对照组（P<0.05）。实验结果表明，中国对虾继饥饿后再恢复喂食出现完全或部分补偿生长效应，且这种补偿生长效应主要是通过恢复生长阶段食欲增大，摄食水平提高实现的。

The compensatory growth in the Chinese shrimp(Penaeus chinensis)following starvation

The recovery growth experiment in the Chinese shrimp with initial wet weight of 1.454g, following different periods of starvation, was conducted from July to August,1999. The experiment lasted for 32 days for each test group. Group C, S4, S8 and S12 were deprived food for 0 (control), 4, 8 and 12 days, respectively. Then each group was refed at ad libitum ration level for its rest experimental time. At the end of starvation mean,the body weight of each starved group (S4, S8 and S12) was significantly lower than that of group C. At the end of experiment the mean body weight of group S4 was similar to that of group C, while the body weight of group S8 and group S12 was still significantly lower than that of group C. Upon realimentation after periods of starvation, the feeding rate in terms of wet weight in each previously starved group were significantly higher than those in group C. The results indicated that there was completely or partially compensatory effect in the recovery growth in the Chinese shrimp following starvation, and that the compensatory effect mainly resulted from significant increase of the feeding level in the recovery growth.