Effects of replacement of dietary fish meal by soybean meal on growth, body composition and digestive enzyme activities in sea cucumber Apostichopus japonicus juveniles
FAN Yue-ju, LI Xiao-dong, LUO Zhi, SONG Zhong-zheng
1. School of Life Science and Technology, Dalian Fisheries Univ. , Dalian 116023, China ;2. Panjin Guanghe Fishery Co. , LTD, Panjin 124200, China;5. Fishery College, Huazhong Agricultural Univ. , Wuhan 430070 , China
Abstract: A 56 -day trial was conducted to evaluate the potential of replacing fish meal with soybean meal in experimental diets for juvenile sea cucumber Apostichopus japonicus （ initial weight 0.34 g ± 0.01 g） in cylinder net - cages （60 cm in diameter and 65 cm in height）. Six isonitrogenous diets were formulated with fish meal replaced by soybean meal at the levels of 0 （39.9% fishmeal）, 20%, 40%, 60%, 80% and 100%, respectively. The maximal weight gain, specific growth rate and minimal feed conversion ratio were observed in the sea cucumber fed the diet containing 40% soybean meal （P 〈0.05）. Crude protein in sea cucumber fed the diet containing 40% soybean meal was significantly higher than that in the sea cucumber fed the control diet（P 〈0.05） , which showed no significant difference among the other treatments （P 〉 0.05）. Similarly, there was significantly higher protease activities in the foreguts of the seas cucumber fed the 40% soybean meal replacement than those in the sea cucumber fed the control diet（P 〈0.05）. However, there were no significant difference in the body wall composition and digestive enzyme activities among the other groups （ P 〉 0.05）. It can be suggested from the experiment that it is better to add fish meal into the soybean meal for the sea cucumber diets, even though 40% fish meal can be replaced by soybean meal in the sea cucumber diet.
樊月居, 李晓东, 罗智, 孙忠正. 饲料中用豆粕替代鱼粉对仿刺参幼参生长、体成分及消化酶活性的影响[J]. 大连海洋大学学报, 2010, 25(1): 71-75.
FAN Yue-ju, LI Xiao-dong, LUO Zhi, SONG Zhong-zheng. Effects of replacement of dietary fish meal by soybean meal on growth, body composition and digestive enzyme activities in sea cucumber Apostichopus japonicus juveniles. Journal of Dalian Ocean University, 2010, 25(1): 71-75.
2010, Vol. 25 
