Normally weaned calves are reared in two ways: one is 110-day weaning, six months of age weighs 170 kilograms, and the average daily gain is 700-730 grams; the other is 60-day weaning, 6-month-old weight 160-165 Kg, average daily gain 670-700 grams. The breeding techniques for the specific calves at the weaning stage are as follows:
The amount of colostrum produced per cow is 110-140 kilograms, while the calves born only eat 20-24 kilograms within 3 days and the rest is made into fermented colostrum. Fermented colostrum is usually fermented at 25°C to 30°C. The yak material is mixed with water at a ratio of 1:1, and then mixed with equal amount of hay or 4 to 5 times of silage, and then mix and feed until the amount of feed is 2 kg per head per day. Feeding milk should be regular, constant temperature, quantitative and fixed breeder, that is, when feeding yaks, the temperature should be constant, the general requirements of the milk temperature should be 35 °C ~ 38 °C, the temperature can not be ups and downs, the amount of milk can not be ignored The amount of milk should be fixed, and it should also be fed by special personnel as far as possible so that the calves can digest normally. Each time before feeding, use hot water to sterilize the appliance. After feeding the baby, use a dry towel to wipe off the remaining milk of the yak's mouth. In the course of weaning of yak, in order to prevent yaks from squatting, appropriate antibiotics may be added during the supplementary feeding process, and refueling is gradually carried out. During this time, the hay is free to feed and the amount of drinking water should gradually increase.
Ventilate the cowhouse and allow the yaks to stay in the sun. The temperature of the cowhouse is 10°C to 24°C. In the 10 to 15 days after the calf is born, the calf is decapitated in time to reduce the absorption of nutrients by the keratin growth and accelerate the growth and development of calves. It is kept in the calf pen (outdoor or indoor) within 3 months of age. Cold-housed breeding of yak law can help improve the survival rate and resistance to disease; after 3 months of age, it will be transferred to group feeding, exercise will be strengthened, and yak brushing will be done well. Calves are not raised and should be fenced for free activities.
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