Fish meal-free crucian breeding expanded compound feed and preparation method thereof

The invention relates to fish meal-free crucian breeding expanded compound feed and a preparation method of the fish meal-free crucian breeding expanded compound feed. The feed disclosed by the invention comprises the following components in part by weight: 4 to 8 parts of blood cell protein powder, 6 to 10 parts of corn protein powder, 3 to 5 parts of fermented soybean meal, 20 to 32 parts of soybean meal, 20 to 35 parts of rapeseed meal, 3 to 6 parts of wheat, 12 to 20 parts of flour, 4 to 8 parts of rice bran, 4 to 5.5 parts of vegetable oil, 2.0 to 3.5 parts of calcium dihydrogen phosphate, 0.2 to 0.5 part of 98.5 percent lysine hydrochloride, 0.1 to 0.3 part of 99 percent DL-methionine, 0.3 to 0.8 part of vitamin premix, and 0.5 to 1.5 parts of mineral substance premix. Through the preparation method, the blood cell protein powder and the corn protein powder are used, meanwhile, partial grease, lysine and methionine are supplemented, the vitamins and mineral trace elements are balanced, fish meal in crucian feed is completely removed, and the fish meal-free crucian breeding expanded compound feed is developed, so that feed cost is greatly reduced, and breeding benefit is increased.