Pregnant cows raised in winter cattle farms are prone to miscarriage, and the reasons are many. Due to the great weather changes in winter, cows are faced with the threat of hay, frost, lack of green feed, and cold, especially for pregnant cows. Therefore, it is necessary to fully grasp the management of dairy cows during pregnancy, focusing on the prevention of pregnant cattle abortion, to ensure its safe winter.
Meet nutritional needs
Strengthen nutrition. In order to ensure winter, it is necessary to grasp the sensation of late pregnancy, in addition to maintaining the nutritional needs of its own life activities, but also to meet the nutritional requirements of the rapid growth and development of the fetus, which must be fed a variety of nutritious feed . In order to stabilize the nutritional balance of pregnant cows, it is not possible to suddenly change the feed, and it is necessary to provide timing, quantitative, and coarse first and then fine feeding methods to improve calves, prevent cold, reduce body temperature loss, etc., in order to ensure the birth of yak body. Large, strong, strong disease resistance.
Feed loose and delicious feed. Pregnant cows approach the late pregnancy, the fetus rapid growth and development, increased uterine expansion, increased pressure on various organs, thereby affecting the growth of cows and fetuses. This requires the pregnant cows to be fed with some bran-like loose feed, and at the same time, to reduce the amount of crude hard feed to protect the normal growth and development of the fetus, reduce the pressure on the dirty organs, ensure smooth blood circulation, and prevent miscarriage. For laboring pregnant cattle, attention should be paid to feeding small, good quality, digestible feed.
Give pregnant cows plenty of water. In winter, the majority of cows mainly eat dried hay. If there is insufficient drinking water, saliva will be reduced and digestion will be weakened, which will slow down the cow's rumen motility and even accumulate food, resulting in obstruction of the valve. Therefore, in winter, pregnant cattle should be warmed to reduce heat loss.
Strengthening thermal management
Pay attention to keeping the house warm. Winter raising pregnant cows should do a good job in keeping the house warm, so as to reduce the heat loss of the cow body and ensure that the pregnant cow can safely live for the winter. The optimum temperature for cows is 8~15°C, which is a favorable temperature for the prevention of miscarriage and miscarriage of pregnant cows. Its effective approach is: close the doors and windows of the cowshed, plug loopholes to prevent the intrusion of thieves; the ground should be dry, not on the cold, to prevent the cold and wet; to do the wall is not windy, not to freeze, the shed does not hang frost, so pregnant cows have a A good wintering environment.
Prevent frost damage. In the morning after the frost appeared, it was not possible to grazing cows to prevent the frost from damaging the pregnant cows. Because in the morning the cows are hungry, their stomachs are empty, they are bulimia, and they often bulge due to overeating and may even swell. Pregnant cows are more prone to fetal movement, restlessness or miscarriage. If cattle are to be grazing, grazing should be carried out in the morning when the sun comes out and when there is no dew. Frosted or frozen fodder cannot be fed to pregnant cattle that are being fed.
Exercise prevention
Pregnant cows insist on proper exercise. After the pregnancy, cows consume too much nutrients, easily causing frailty and decreased resistance. Therefore, we must grasp the feeding and management of pregnant cattle during pregnancy, and adhere to regular and appropriate exercise. Because of the slippery winter road, we must prevent swift walking and running. In late pregnancy, do not climb mountains, do not take steep slopes, dangerous roads and ice slides to prevent slipping. Pregnant cows should be kept separately from other livestock and managed separately to prevent biting, top racking, and squeezing to ensure the safety of pregnant cows and avoid miscarriage.
Prevent the occurrence of bovine fetal movement pain. Late pregnancy, because the uterus is too large, excessive expansion, coupled with the poor quality of the body, strong sensitivity, easy to cause fetal movement, pain, performance as often unrest, howling, yelling, vaginal bleeding water, cattle look back , frequently do urination posture, palpation of fetal activity enhancement. Effective practice is: to maintain adequate rest and quiet pregnant cows, while the use of drugs for symptomatic treatment, available analgin injection 30 ~ 40 ml intramuscular or intravenous injection, or potassium bromide 20 ~ 40 grams of oral administration for the town Static fetal; can also be used 1 to 2 grams of progesterone intramuscular injection, 1 times / day, once every 3 days, can receive a good fetal protection effect.
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