Fully-mixed daily feed for dairy cow

The invention relates to a fully-mixed daily feed for dairy cows, comprising concentrate supplement, silage, weed, alfalfa and carrots, wherein the concentrate supplement comprises grain seeds, cakes, by-products of agriculture product processing and premix feeds. In the invention, the raw materials are smashed and mixed respectively and uniformly, the moisture content of the feed is controlled to be less than 15%, and then the mixture is pressed into finished feed. The invention solves the problem of nutrient unbalance of dairy cows caused by feed intake difference in traditional feeding methods, decreases feed waste, helps relatively stabilize the pH value of dairy cow rumens, avoids digestive system disorder of dairy cows effectively, and improves nutrition condition of dairy cows. By using the feed in the invention and coordinating with the matched management technology, dairy cow eliminating amount can be decreased by about 8% every year and the average milk yield can be increased by 2.5kg per dairy cow,