Non-grain feed-bean curd residue formulas used for fattening pig and sow at different stages

The invention relates to a pig feed, and particularly, relates to non-grain feed-bean curd residue formulas used for a fattening pig at different stages. The formulas are composed of base daily grain and bean curd residues, and the stages are divided into the following three stages: when the weight of the fattening pig is 15-30 kg, the formula at the stage is composed of 94%-98% of the base daily grain and 2%-6% of the bean curd residues, wherein the base daily grain comprises the following components: 65% of corn, 10% of wheat bran, 18.28% of soybean meal, 3% of fish meal, 1% of rock flour, 0.97% of calcium hydrophosphate, 0.5% of soybean oil, 0.5% of table salt, and 0.75% of a fattening pig core material. After years of practical experience and experimental verification, the scientific formula is formed by the bean curd residues and the grain type feed resource, on one hand, nutritional needs for the pig at different stages are met, on the other hand, grains are saved, costs are reduced, and the ability to