饵料对不同规格皱纹盘鲍能量收支的影响

Effects of three dietary treatments on the energy budget of different sized Haliotis discus hannai Ino

对3种不同规格的皱纹盘鲍(41.40±2.05、54.22±2.66、63.17±2.52mm)分别进行不同饵料搭配的投喂,并对各生理活动的能量代谢进行了测量与计算。实验结果表明,搭配投喂的实验组中皱纹盘鲍能够摄取更多的有机物作为能量代谢的基质。扣除代谢能、排泄能和排粪能后,搭配投喂能提供给皱纹盘鲍的生长能显著高于对照组(P<0.05),尤其是孔石莼与裙带菜搭配投喂组以及裙带菜与海带搭配投喂组,其获得的生长能的比例在3种规格组中均处在很高的水平,是鲍的筏式养殖中值得推广使用的投喂方法。

With the increasing price of kelp, sustainable food and ;uitable feeding strategy are becoming important in the abalone culture industry. In this experiment, Haliotis discus hannai Ino were sized into three groups, A （41.40±2.05mm）, B （54.22±2. 66ram） and C （63.17±2.52 mm） respectively, and fed with four dietary treatments. Energy budget of various stages were measured and calculated. The mixed-diet treatments showed more organic matter intake than groups fed on kelp alone, indicating that they could get more energy for metabolism. According to the energy budget equation, growth energy of group fed on mixed diet was significantly higher than that of the group fed on kelp alone（P〈0.05）, especially in group 1 and group 2. Level of growth energy was high in all of the experimental groups, and the feeding methods were worthy to be used in the abalone culture industry.