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Pregnancy Cattle Breeding Management Technology in Winter
In the harsh winter season when the grass is withered, pregnant cows must endure cold attacks and provide all the nutrients needed for the growth and development of the fetus. In adverse climate conditions, if pregnant cattle are improperly reared, especially if they experience abrupt changes in temperature, they may easily lead to a decline in the constitution of pregnant cows during hunger and cold stress, and even result in the death of the mother. To this end, the following measures should be taken for pregnant cows: 1. Renovation of barns, cold and warmth Pregnancy cattle should have a separate barn, so as to avoid crowding, kicking and causing miscarriage. The barns should plug the loopholes, shelter from the wind, do not leak rain, and do not wet. The bedding is often replaced. On a sunny noon, the cows are allowed to go outside and enjoy the sun. 2, to strengthen nutrition, carefully feeding the cow after pregnancy, in addition to maintaining their own needs of nutrition, but also need to provide the nutritional needs of fetal growth and development, but also the accumulation of a certain amount of nutrients to ensure the production of lactation. Therefore, 1 to 2 kg of concentrate should be fed daily. Conditional feeding of mixed concentrates is possible. The proportions are: corn 30%, soybean cake 20%, rice 15%, cottonseed cake 15%, rapeseed cake 5%, rice bran 15%, and some bone meal and salt are also added properly. Do regular, quantitative, and less to add ground, do not feed mildew feed. Drinking water should be clean, be careful not to drink empty belly water and ice residue water, it is best to feed warm and hot water. In the absence of rain, it is necessary to insist on cattle grazing up the mountain. Grazing can not only allow cattle to eat green feed, but also increase the amount of exercise, which is beneficial to the health of cattle. Put cattle in the leeward sunny bushes, do not let the pregnant cows eat frost grass. Feed should be diversified, palatable, and digestible. Since winter feeding is generally dominated by coarse materials such as hay and rice straw, attention should be paid to the modulation of feed. It is best to produce ammoniated feed for cattle. This will not only increase palatability, but also increase nutrition. If there is a lack of protein feed during supplemental feeding, urea feed may be used, which can supplement the deficiency of protein. Daily dosage of urea may be 40 g per 100 kg of body weight. 3. Preventing miscarriage and ensuring maternal health Winter feeding and management of pregnant cows are prone to miscarriage. The signs are the vaginal outflow of mucus during the pre-pregnancy period. They constantly look back at the abdomen and become restless; Late pregnancy shows breast enlargement, arching, and repeated use. Urination posture, abdominal pain, fetal movement stopped. Progesterone intramuscular injection of 05~1g can be used for treatment once a day for 4~6 days, which can receive good results. 4. Appropriate exercise and reasonable use of pregnant cows to mid-pregnancy should gradually reduce the intensity of military exercise. In the military service, it is strictly forbidden to draw cold whip, rush to work, turn to sharp bends, and must be cautious, and stop working for one month before labor to avoid causing In abortion, pregnant cows who are completely vaccinated and not enslaved should be led to exercise outside to improve their fitness and prevent dystocia when the sun is sunny. Mild dystocia can be induced by posterior pituitary hormones. One subcutaneous injection 60~ 100 units, but also the choice of ethylene estradiol subcutaneous injection of 10 to 20 mg, get good results.