Feed for fattening beef cattle

The invention belongs to the technical field of livestock feed processing, and discloses a feed for fattening beef cattle. The feed is prepared from 20-40 parts of soybean meal, 15-30 parts of rice bran, 15-20 parts of crop waste, 8-16 parts of corn DDGS, 5-10 parts of a compound microbial agent, 10-12 parts of baking soda, 8-10 parts of a traditional Chinese medicine additive, 6-12 parts of vegetable oil, 5-8 parts of compound enzyme, 3-5 parts of a beef cattle phagostimulant, 2-4 parts of sodium chloride and the balance of sterilized purified water. The feed for beef cattle fattening has the advantages of being reasonable in proportion, good in safety and good in environmental protection property, by adding the corn DDGS and phytase, the use amount of calcium hydrophosphate in the feed is reduced, nitrogen and phosphorus metabolism of the feed is promoted, nitrogen and phosphorus emission of excrement is reduced, the use amount of the corn byproduct corn DDGS is remarkably increased, and protein feed resour