1. Coarse and rough should be reasonable. The proportion of diets is generally 45%-60% for roughage, 35%-50% for concentrate, 3%-4% for minerals, 1% for vitamins and trace elements, and 1.5-2 for calcium and phosphorus. 1:1.
2. The supply of food should be scientific. Silage corn stalks, dairy cows produce more than 20 kilograms per day; hay more than 3 kilograms, should give priority to the selection of legumes and other high-quality hay; concentrates per kilogram production of 1 kilogram of fresh milk supply calculation.
3. It is forbidden to use animal-originated feeds. There should be a test report for the outsourced mixed concentrates.
4. It is forbidden to use mildew and spoilage fodder, especially corn, soybean meal, straw, bran, etc.
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