Many threats such as grass and frost should beware of pregnant cattle miscarriage in winter.

Pregnant cattle are prone to abortion in winter, and the reasons may be various. Due to the large change of winter temperature, cattle face the threat of grass wither, frost, lack of green feed and cold, which has a greater impact on pregnant cattle. It is also necessary to consider the acceleration of fetal growth and development in the later period. Therefore, it is necessary to comprehensively manage the pregnancy of cattle, pay attention to preventing abortion of pregnant cattle, and ensure their safe winter.

pregnant cow

Meet nutritional needs:

Nutrition enhancement. In order to ensure the winter, we must pay attention to the late pregnant cow, in addition to maintaining the nutrition needed for its own life activities, but also to meet the nutrition needed for rapid fetal development, we must feed a variety of nutritious compound feed. In order to keep the nutrition balance of pregnant cattle stable and not change the feed suddenly, it is necessary to do regular quantitative, coarse first and then fine, so as to improve the fat of cattle, prevent cold, reduce the loss of body temperature, etc., in order to ensure that the calves are big, strong and resistant to disease.

Feed loose and delicious feed. Pregnant cows approach the late pregnancy, the fetus develops rapidly, the uterus expands, and the compression of organs increases, thus affecting the cow and fetus. This requires pregnant cows to be fed a loose diet of bran, while reducing the amount of roughage fed to protect the normal development of the fetus, reduce the pressure on the organs, ensure smooth blood circulation, and prevent abortion. Pregnant cattle in parturition should be fed small, good quality and digestible feed.

Pregnant cows were given plenty of water. In winter, most cattle eat hay dry material, such as insufficient drinking water, will cause saliva reduction, digestion weakened, so that cattle rumen motility slowed down, and even food accumulation, resulting in gastric valve obstruction. Therefore, warm water should be given to pregnant cattle in winter to reduce heat loss.

Strengthen thermal management:

Pay attention to the warmth of the enclosure. Keep warm in pens, reduce heat loss of cattle and ensure safe winter of pregnant cattle. The optimum temperature for pregnant cattle was 8℃~15℃. Effective practices: close the doors and windows of the cattle house, plug the loopholes, prevent the invasion of thieves; the ground should be dry, not frozen, and prevent cold and damp; the walls should not be ventilated, the house should not be frozen, and the shed should not hang frost.

Prevention of frost damage. Cows should not be grazed on frosty mornings in case frost harms pregnant cows. Because the cow is hungry in the morning, the stomach is empty, gluttony, often because of eating too fast and too full, even bloating to death. Pregnant cows are more prone to fetal movement, restlessness or miscarriage. If you want to graze cattle, you should graze them in the morning after the sun comes out and there is no dew. Pregnant cows should not be fed frost dew grass or frozen forage.

Exercise Prevention:

Pregnant cows insist on proper exercise. After pregnancy, cattle nutrition consumption is large, easy to cause weakness, resistance decline. Therefore, it is necessary to do a good job in the feeding management of pregnant cattle during pregnancy and adhere to regular and appropriate exercise. Winter cold road slippery, to prevent pregnant cattle from walking and running jump. In the late pregnancy, do not climb mountains, do not take steep slopes, dangerous roads and ice slides, to prevent slipping. Pregnant cattle should be raised separately and managed separately to prevent biting, jacking and squeezing, so as to ensure the safety of pregnant cattle and avoid abortion.

Prevention of fetal colic in cattle. In the later stage of pregnancy, due to excessive uterine content, excessive expansion, poor constitution and strong sensitivity, it is easy to cause fetal colic pain, manifested as restlessness, moo, tail crossbow responsibility, vaginal bleeding, cattle looking back at abdomen, frequent urination posture, palpation of fetus, activity enhancement. Effective practice: keep pregnant cattle fully rested and quiet, and apply symptomatic treatment with drugs, such as intramuscular injection or intravenous injection of analgin injection 30~40 ml, or oral administration of potassium bromide 20~40 g, to calm and prevent abortion; intramuscular injection of progesterone 1~2 g, once a day, for 3 days, with good fetal protection effect.