In the early spring, when it is warm and cold, it is at a time when green feed is scarce. Silage and crop stalks are the main source of roughage for dairy cows. Silage has the advantages of reducing the cost of feeding, good palatability, improving the utilization rate of crop straw, easy digestion, convenient preparation, durable storage, and can promote the production of dairy cows. Because the silage is produced by fermenting lactic acid bacteria under the conditions of sealed and anaerobic crop straw, if it is improperly taken and fed, it can easily lead to deterioration of silage and cause cow poisoning and disease. Therefore, the spring cows must pay strict attention to the following four points when feeding silage: Quality assurance When using silage, you must use high-quality silage. High-quality silage is greenish green or yellow-brown. The smell is savory and the texture is soft and moist. The veins and villi on the stems and leaves can be seen. For dark or dark brown in color, odor in smelly acid, even moldy, rotten, and deteriorated silage, do not feed the cows. If these silages are fed, they will cause diseases in the digestive tract of dairy cows. If these feeds are eaten by pregnant cattle, they will also cause miscarriage. Strictly When taking silage, it must be opened from one end of the silo, in accordance with a certain thickness, layered from top to bottom, to keep the surface flat, to prevent the mixing of soil, should not be taken from a burrowing hole. It is advisable to take the amount of each day for feeding one day. In spring, the weather gradually warms up, the propagation speed of harmful microorganisms accelerates, and the contact time between silage and air is long, which can easily cause mildew and deterioration of silage. Therefore, after the silage is taken out, the silo entrance should be closed immediately to prevent excessive air in the silo. Suitable for feeding Silage has a certain sour taste, and some cows may not be accustomed to the initial feeding. They should follow the principle of gradual and gradual progress. Mix with other concentrates or hay, put the silage less for the first time, then gradually increase the amount and feed it on an empty stomach to allow it to gradually adapt. Because silage contains a large number of amino acids and has a laxative effect, it is not advisable to feed more females during the later period of pregnancy and stop feeding for 15 days before birth. In general, calves are fed silage after weaning. The daily feeding amount of silage for adult dairy cows is preferably 20 kg to 25 kg, and the calves after weaning range from 5 kg to 15 kg. As the amount of green feed is gradually increased, the amount of silage fed can be appropriately reduced. Coincidentally Although the silage is a kind of high-quality roughage, it must be scientifically matched with the fine feed according to the actual needs of the dairy cow to improve the utilization of the feed. In terms of ingredients, the feed ratio of dairy concentrates and silage (moisture content) is reasonable in the range of 1:3 to 1:3.5. If the silage acidity is large, 5%~10% baking soda or 1%~2% lime water can be added to the feed, rinsed and fed to reduce the acidity, increase the palatability, and promote digestion and absorption. Anesthesia Medical Co., Ltd. , http://www.sinoanesthesia.com