Compound feed capable of improving body color of loach and increasing survival rate as well as preparation method

The invention discloses compound feed capable of improving body color of loach and increasing the survival rate as well as a preparation method. The compound feed is prepared from the following raw material components by weight percent: 3 to 6 percent of fish meal, 15 to 20 percent of soybean meal, 18 to 22 percent of high gluten flour, 5 to 10 percent of corn protein powder, 10 to 12 percent of rapeseed meal, 5 to 7 percent of peanut cake, 10 to 15 percent of degossypolized cotton seed protein, 6 to 8 percent of shrimp shell powder, 4 to 6 percent of inkfish paste, 4 to 6 percent of feed yeast, 1 to 2 percent of calcium dihydrogen phosphate, 3 to 4 percent of soybean phosphatide oil, 1 to 2 percent of fish oil, 1 to 2 percent of vitamin premix and 1 to 2 percent of mineral premix, and 2 to 4 g (0.2 to 0.4 percent) of natural lutein for every kilogram of feed. By virtue of artificial farming test, the compound feed provided by the invention can improve the body color of the loach, canpromote the growth, can r