Management of sows during pregnancy
The management of the sow during the gestation period should pay attention to environmental sanitation. The pig house should be quiet and comfortable. The temperature should be 16--22C. The air is fresh, the ground is flat, dry and sanitary. The pig house is kept warm in winter and protected from heat in the summer so that the temperature is too high, causing the death of embryos to affect the number of litters. Do not whip, startle or chase the sow while preventing the sow from squeezing. In the pre-pregnancy period, the sow is best kept in a single lap or in small groups to prevent miscarriage. Due to the slow development of the fetus, it is not necessary to consider extra fetal growth and additional feed should be based on the sow's lyrical and seasonal feeding. If the feed is overdose, the sow Fertilizer can cause the death of a fertilized egg or a fetus. In the mid-gestation period of sows, the mid-pregnancy period is due to the fact that the fetus grows slowly and does not need to increase the amount of feed. It is beneficial to prevent constipation by feeding a rich green feed. It can increase the reproductive rate and extend the reproductive life of sows. Sows have very fast growth during the second trimester of pregnancy and gradually increase the amount of feed. One is that sows need nutrition for their lactation. And sows to restore physical strength postpartum, and second, to meet the fetal growth needs, pay attention to protein feed and calcium, phosphorus and vitamins, green feed. It is strictly forbidden to feed frozen, poisonous, moldy and degenerate feeds, clean drinking water, carry out deworming and immunization at the same time, and make all preparations before birth.
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