The selected cross-bred hybrid cattle concentrates the good traits of different varieties, has obvious hybridization advantages, and can produce a large amount of high-quality beef in a short time. If there is no hybrid cattle, local yak aged 3-5 years, weight 250 kg, moderate sensation, and disease-free can be selected for short-term fattening. Feeding ammoniated grass with ammoniated grass can increase the rate of nutrient conversion, enhance palatability, and reduce production costs. According to the ratio of 100 kg of grass, 3 kg of urea and 40 kg of water, the ammoniated chamber was sealed to produce ammoniated grass. The ammoniated straw should be transferred to the open space during sunny days and be continuously turned to release ammonia. After the ammonia taste is exhausted, it will be stored in the room for use. Aminated grass should be fed for a 7-10 day transition period. The normal feeding amount for beef cattle is generally 2% of its body weight. The principle of good food is not wasted, and it is fed 3 times a day. The reference formula for the supplemental mixture was 60% corn, 37% cake, 2% starch, and 1% salt. According to the weight of 1% of the cow's body weight, the mixture was fed twice a day. Adding and feeding additives, "relying on science for cattle, and technology for meat," is an important way to develop the beef industry and improve the efficiency of beef cattle breeding. At present, the application of a wide range of weight gain agent technology. Feeding fattening bulls can be planted at any time, and the weight gain of the calves is best. The fattened cows do not need to be buried. For cattle with a longer feeding period, they can be replanted at intervals of 100 days and the fattening effect is better. Fine management In the transitional period of feeding aminated forage, an albendazole 30 mg per kilogram of body weight is given to the cattle, and the stomach should be given after serving. During the fattening stage, the grass season is grazing for 1-2 months, and the rear stage requires no less than 1 month of house-fed farrowing. The use of high-concentrate diets can be used for 60-90 days. When mixing materials, it is required to mix wet materials first, and then mix well with forage grass after one hour. In addition, clean water must be supplied twice a day and the wet bedding is often removed to keep the bullpen dry and clean. Smart thermometer,ear thermometer,best baby thermometer,forehead thermometer Shenzhen urion Technology Co., Ltd. , https://www.urionhealth.com