在二口池塘中培育鱼种，亩放养量等同，其中鲤鱼种占80．0％，试验池1．5亩，对照池1．4亩，除添加0．3％的甜菜碱外，试验池与对照池饲料配方完全相同。试验为期100天。结果为：试验池、对照池亩产量分别为235．49kg、209．69kg，亩利润分别为548．26元、437．8元，投入产出比别为1∶1．31、1∶1．26。饲料系数分别为1．92、2．15；饲料经济效率提高6．38％，本试验结果表明：饲料中添加一定量的甜菜碱可以起到诱食促生长作用，并且从经济效益上讲也是可行的。 In two ponds to cultivate fish species, mu stocking equivalent, of which carp species accounted for 80.0%, 1.5 mu of test ponds, 1.4 mu of control pool, in addition to adding 0.3% betaine, the test pool The same with the control pond feed formula. Test for a period of 100 days. The results are as follows: The yield of test pond and control pond is 235.49kg and 209.69kg respectively, and the profit of mu is 548.26 yuan and 437.8 yuan, respectively, and the input-output ratio is 1: 1.31,1:1. 26. Feed coefficient were 1.92,2.15; feed economic efficiency increased 6.38%, the test results show that: the feed to add a certain amount of betaine can play a role in inducement to promote growth, and in terms of economic efficiency is also feasible.