Since cows have more water loss after childbirth, they should feed about 15 kilograms of warm, sufficient bran, salt and calcium porridge after the fetus is produced (1 to 2 kg of bran and 100 to 150 g of salt). Calcium carbonate 50g), can play the role of warm belly, hunger, increase abdominal pressure, is conducive to the discharge of the clothing and the cow to restore strength. Pay attention to the amount of salt feeding can not be too large, otherwise it will increase the extent of breast edema, while feeding the cow a good, soft and tender hay 1 to 2 kg. After the birth, the cows should be raised as soon as possible to reduce bleeding, which is also conducive to the resettlement of the genitals. To prevent the uterus from coming out, the cow can be pulled for about 15 minutes, and gradually increase the amount of exercise. Within 8 hours after the delivery of the cow, the tire-bearing garment can generally fall off on its own. If it does not fall off after more than 24 hours, it should be treated as if it had been detained. After the placenta falls off, pay attention to the discharge of lochia, if there is lochia obstruction phenomenon, that is, only a few days after delivery, see only dense transparent secretions and not see dark red liquid lochia, should be treated in time to prevent post-production sepsis or metritis and other diseases. In the first few days of calving, the blood circulation in the cow's udder and the control and regulation of the activity of the mammary glands have not reached the normal state. The breasts are swollen very badly and the internal pressure is also very high. Therefore, if it is a high-yielding cow, absolute Can not squeeze all the milk in the breast, otherwise it will be due to a significant decline in breast pressure, causing increased microvascular leakage, blood calcium, blood glucose loss, further exacerbate breast edema, resulting in high-yield cows postpartum paralysis, and even severe Caused death. The general principle is to squeeze only about 2 kilograms on the first postpartum day. It is enough for calves to suckle and suck. Each time on the 2nd day, the amount of milk to be extruded is 1/3. On the 3rd day, the amount of excretory milk is 1/2. After the 4th day, it can be squeezed. net. This is not necessary for low-producing cows and cows with no post-natal breast edema, and can be squeezed on the first day after calving. For cows with severe postpartum breast edema, each time after milking, the breasts should be fully massaged, and the breasts should be warmed for 5 to 10 minutes (using warm magnesium sulfate and sodium sulfate mixed solution is best) to promote the early disappearance of breast edema. If the cow feeds at the same time after warming motherwort brown sugar water (Leonurus 500 grams, add water 10 kilograms, Jian Shui agent plus brown sugar 500 grams), 1 or 2 times a day, and even served 2 to 3 days, the cow lochia net And postpartum recovery of the uterus has a catalytic effect. (Source: Sichuan Agricultural Economics Gao Shuping)
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