1. Provide low-calcium diets, and maintain calcium and phosphorus balance, which is conducive to promoting the use of bone calcium and gastrointestinal absorption of calcium and phosphorus in dairy cows; to avoid postpartum production paralysis.
2. Control the amount of concentrate feed, increase the coarse material (green hay, yew grass, non-stick corn silage, etc.), so that the crude: precision ≥ 60:40; this is conducive to the maintenance of rumen function, control of calves.
3. Control the intake of leguminous plants (such as valerian) because they contain calcium and are not conducive to controlling dietary calcium levels.
4. Control dry matter intake to no more than 2% of body weight (based on Holstein cows weighing 600 kg). This is beneficial for effective control of body fat in dry cows.
5. Provide high-quality protein and rich in vitamins (such as vitamin E), trace elements (such as Se), help dry cows to repair the body's function, enhance resistance, reduce the incidence of mastitis, no clothes.
6. Ensure that the anion and cation balance, provide anionic salts (such as NH4CL, MgSO4, etc.), effectively reduce the incidence of postpartum sputum.
7. Perinatal feeding: The dry cow's udder begins to develop about 2 weeks before delivery. In order to enable the cows to feed more concentrates and take full advantage of the postnatal period, it is necessary to gradually increase the concentrates for the cows approximately 2 weeks before delivery. The amount of feed. However, the increase of fine material should not be too large every time, it can be increased by 0.5Kg every two to three days, until the total amount of concentrate before the calving reaches 5-7Kg/first day; if the cows with breast edema should control or Reduce the amount of concentrate feed.
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