1. Cows should rest for 3 to 5 days after mating, and mating for 1 week to 5 months of age can be performed as usual or grazing outside, but should not be excessive. When pregnant from 2 to 3 months of age, it is more likely to cause a miscarriage. Therefore, during grazing, the cows should be prevented from running and jumping and rushing; cows 5 to 6 months of age should gradually arrange for lighter duty and stop ringing, etc. As far as possible, do not farm under the paddy field to prevent abdomen from causing abortion. The weather is too cold and overheated. Don't be cautious. Avoid cold whips and steep slopes. Each day and night will guarantee 16-18 hours of rest and ruminating time.
2. During the last month of pregnancy, the cows should stop working and grazing. The cows who are born and cows with poor breast development should be treated with warm water of 40~50°C every morning and evening for about 20 days before delivery. This will not only benefit the cows. The development of cows' udder can increase the accessibility of the animals and facilitate post-natal artificial feeding of yaks. Pregnancy cows should be kept clean, dry and ventilated, and replaced by grass every day. 7 to 10 days before delivery, the cowshed should be cleaned thoroughly, the ground should be replaced with new soil, and then sprayed with 2~3% caustic soda.
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