Feed for lean meat fattening pigs

The invention relates to feed, in particular to feed for lean meat fattening pigs. The feed consists of a major material part and an auxiliary material part, wherein the mass content of the major material part is 98 percent, the mass content of the auxiliary material part is 2 percent, the major material part consists of the following ingredients in parts by weight: 300 to 500 parts of corn, 200 to 300 parts of wheat, 150 to 200 parts of dehulled soybean meal, 0 to 100 parts of American distillers dried grains with solubleb (DDGS), 0 to 50 parts of rice bran, 30 to 100 parts of wheat bran, 6 to 10 parts of mountain flour and 5 to 10 parts of calcium hydrophosphate, the auxiliary material part consists of the following ingredients in percentage by weight: 2 to 5 percent of choline, 1 percent of antioxidant, 3 percent of mould inhibitors, 2 percent of composite vitamins, 15 to 30 percent of synthetic amino acid, 20 to 30 percent of electrolyte, 15 percent of composite trace elements, 0.5 percent of phytase, 1 percent of composite zymin, 3 to 10 percent of meat modifiers and 5 to 30 percent of carriers. The feed for the lean meat fattening pigs provided by the invention has the advantages that 1) the growth speed and the lean meat percentage of the lean meat fattening pigs can be improved; 2) the pork quality can be improved, and in addition, no toxic residue exists; and 3) the heath of consumers is ensured, and the competitiveness of the pig product exportation is enhanced.