Effects of several types of probiotics on growth, survival and digestive enzyme activity in juvenile sea cucumber Apostichopus japonicus HAO Jia1,2，WU Ying-qian1,LIU Han-qi1, CAI Ming-cheng1,3，ZHANG Sai-sai1，
LI Shi-tao1，WANG Hua1，WANG Wei1
1.Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China; 2.Fisheries Technical Extension Station of Dalian, Dalian 116023, China; 3.Fisheries Technical Extension Station of Changhai County, Dalian 116500, China
Abstract: Probiotics comprised of only photosynthetic bacteria, Lactobacillus, Bacillus, and oceanic red yeast or mixture of those microorganisms at a ratio of 4∶1∶4∶1 were regularly added into the tanks where sea cucumber Apostichopus japonicus with body weight of (2.00±0.52)g was cultured to evaluate the effect of several types of probiotics on growth, survival and digestive enzyme activity in juvenile sea cucumber. The results showed that addition of the probiotics led to improve significantly the growth rate and survival(P<0.05)，with the maximal weight gain (125.97±8.26)% and specific growth rate(1.66±0.06)%/d in the sea cucumber juveniles in the water supplemented with the mixture of the microorganisms, significantly higher than those in the juveniles in the control group (P<0.05). There were significantly higher digestive enzyme activities in the sea cucumber juveniles in the water supplemented with probiotics, especially supplemented with the mixture of the probiotics, than in the juveniles in the control group (P<0.05).
郝佳, 吴英茜, 刘晗奇, 蔡明城, 张赛赛, 李世陶, 王华, 王伟. 几种微生态制剂对刺参幼参生长、存活和消化酶活性的影响[J]. 大连海洋大学学报, 2015, 30(3): 248-252.
LI Shi-tao, WANG Hua, WANG Wei. Effects of several types of probiotics on growth, survival and digestive enzyme activity in juvenile sea cucumber Apostichopus japonicus HAO Jia1,2，WU Ying-qian1,LIU Han-qi1, CAI Ming-cheng1,3，ZHANG Sai-sai1，. Journal of Dalian Ocean University, 2015, 30(3): 248-252.
2015, Vol. 30 
