Age Management Contents and Methods Yak Within 7 days after birth, he was fed colostrum and fed 3 times a day. The daily temperature of the milk temperature was 38-40°C and the amount was 15 kg or less. (Birth till 6 months of age) Feeding mainly on concentrates, according to dry matter, crude ratio 7:3, roughage quality pasture, (6 months old till delivery) When 16-18 months old cows weigh 350-400 kg, they are suitable ages. It is necessary to mate the estrus cows in time. Persist in the brushing of cattle body and strengthen the body movement of cattle. From 12 months onwards, massage the young cow's breast to promote the development of mammary gland and adapt to the milking operation in advance. After the calving of the cows in the early stages of the calving, the cows were allowed to freely feed quality hay and fed warm bran bran soup (bran 1 (2 weeks after parturition) - 2 kg, salt 100 g, heated water), After the valley of cows was restored, concentrates were added. For postpartum breast edema, attention should be paid to the hot compresses and massage of the breasts. The amount of milk in the first 3 days does not exceed 1/2, and the milk can be squeezed out in the fourth day. The mid-lactation feed has a rough and reasonable balance. The ratio of high-yielding dairy cows to roughage is 6:4, low-yielding cows are 4:6, and refined (15 days to 100 days after delivery) The feed is based on 2.5 kg of diet, and each 3 kg of milk is added. 1 kg for fresh drinking water. Two months after birth, the cows began to heat, to observe the estrus performance in time, timely breeding. Late lactation The ratio of feed to rough ratio is 5:5 for high-yielding dairy cows, 4:6 or 3:7 for low-yielding dairy cows, and the amount of concentrate feed (101 days postpartum-dry milk) is the same as the mid-term calculation method. Appropriately increase exercise, pay attention to fetal protection and prevent mechanical miscarriage. Stop milking 2 months before childbirth. In the dry milk period, the ratio of coarse and fine feed is 3:7. The amount of concentrate is appropriately increased depending on the cow's moisture level. However, the maximum amount is not more than 4.5 kg (2 months before delivery—the delivery) and the coarse material is mainly hay quality. Grass, for fresh drinking water. Winter can not feed frozen tuber feed and mildew feed, can not drink cold water.
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Provide enough water. After 8 days, regular milk was fed and fed 3 times a day. The amount of feed was controlled by about 10% of calf weight. One month later, she was given green and hay and eaten freely. Weaning for 2 months, feeding 0.5-0.75 kg of concentrate on the day after weaning, for full grass, hay, and free feeding. Keep the cowshed and cattle body clean, pay attention to the hygiene of the feeding, reasonably mix the feed, and exercise properly. Young cattle
Green hay and silage straws dominate. The amount of concentrate feed gradually increased from 0.75 kg to 4–4.5 kg per day with the growth of cattle. In addition, a separate mineral supplementation tank is provided for cattle to feed freely.