In order to reduce the cost of dairy cow feed, it is necessary to master the key nutrient factors affecting the milk production of dairy cows and rationally adjust the feeding method of dairy cow feed.

Full-price feed formula: 34% soybean meal, 10% bran, 50% corn, 1% salt, 3% bone powder or sodium hydrogen phosphate, 2% milk-pro premix. For middle- or low-yielding cows, the ratio of soybean meal to bran can be adjusted according to this formula to reduce the cost of feed, or to reduce the daily cost of feed by reducing the daily feed of full-price feed.

Specific measures: Set up the sink and trough in the sports field to ensure that the cows are free to drink water and feed roughage during exercise. The high-quality fresh grass and straw are fed in proportion. Generally, one cow feeds 30-35 kg of fresh silage corn stover and 2.5-3.0 kg dry straw per day to provide the fiber material needed for rumen fermentation of the cow in time. When the cows produce 10 kg, 15 kg, 20 kg, 25 kg and 30 kg of milk per day, the above feed formula is used, and the daily feed amount of the full-price feed is 4 kg, 7 kg, 9 kg, 11 kg and 13 kg. For high-yield dairy cows, the daily feed of full-price feed may be raised as appropriate. In adjusting the daily feeding amount of feed, in addition to the stable feed amount, each cow must feed 100 grams of salt, 50 grams of bone meal or calcium hydrogen phosphate, and 100 grams of milk premix. Fill with fresh beer grains. Fresh beer grains have high moisture content, rich protein and a large amount of yeast, which can significantly improve feed utilization efficiency and reduce feed costs.