中华绒螯蟹生长中适宜能量蛋白比的研究

Study on Optimal Ratio of Dietary Protein to Energy in the Growing Chinese Mitten Crab, Ericheir sinensis

在水族箱中，对体重 19～ 25 g的中华绒螯蟹配饵中适宜的能蛋比进行了研究。蛋白质设定为 36％、 40％和 44％ 3个水平，能蛋比设定了 40 kJ/kg、 45 kJ/kg和 50 kJ/kg 3个水平，每个水平各有 6个重复。结果表明，配饵中的粗蛋白含量和能量蛋白比与蟹体生长、蛋白增加量和饲料系数存在着显著的相关关系 (P<0.05)，蟹体的生长、SGR 和PER 随饲料中蛋白质含量的增加和能蛋比下降呈上升趋势，饲料系数则下降。其最大生长和最佳饲料效率时的粗蛋白含量为44%，能蛋比为45KJ%。

An experiment was conducted to study the relations between dietary protein to energy ratio and growth in the Chinese mitten crab. The purified 3 protein levels 36％ ,40％ ,44％ and 3 protein to energy ratio(C/P) levels 40 kJ/kg,45 kJ/kg,50 kJ/kg, were set with six replicas per level. Initial body weight of the crab was from 19～ 25g. Significant (P