(a) Functions and uses It mainly deals with the adverse impact of the low-temperature frozen snow disaster in the cold regions on the beef cattle breeding industry. (II) Technical Introduction 1. Snow removal and demolition, reinforcement and renovation of the pens, covering plastic sheets, etc., make the roof free from rain and snow, and there are no wind tunnels on the four walls, increasing the insulation effect of the houses. 2. Thicker bedding in the cattle bed and guaranteed drying of the cattle bed, hay, soft straw, straw, dried bagasse, corn stover, comminuted corn cob, etc. or relatively dry soil below 50 cm in the ground can be used as bedding, all Litter mixing sawdust, ash, and other heat-absorbing material. Exclude the water in the barn in time. 3. Feeding the rough for as short as 2-3cm is beneficial to digestion and absorption. Add night meal. 2% urea was added to concentrate to supplement the deficiency of protein nutrition in roughage. 4. Supplementary feeding concentrates, because the usual feeding rate can not guarantee the growth rate due to the continuous low temperature, daily supplement 1 ~ 2kg fine material. Conditional feeding of mixed concentrates with a mix ratio of 30% for corn, 20% for rice (or corn), 25% for cakes (no more than 8% for cottonseed cake, no more than 5% for rapeseed cake), and rice bran Wheat bran) 20%, salt 2%, baking soda 3%. 5. Do a good job in the production function and post-natal care work, special attention should be paid to the production of cattle shelter wind and warm, if necessary, artificial warming. After the cows have presented signs of childbirth, they should be prepared to take delivery of the products. After the yak is born, it is necessary to wipe the body's mucus in time and do warm work. 6. Winter is the epidemic season of animal viral epidemics, especially epidemic diarrhea and foot-and-mouth disease among animals. The veterinary and epidemic prevention departments in various parts of the country need to strengthen surveillance of the disease, urgently implement foot-and-mouth disease vaccination, and triple or quadruple immunization, issue white lime and disinfectant drugs, and urge farmers and cattle farms to start a cow house cleansing campaign. Short range distance sensors from JRT combine highly precise measurement results with quick and reliable response. Short distance sensor module use single-transmit and single-receive measurement technology and can be used to measure a distance or monitor the slow moving objects. For the laser pointer distance measure, also called optical range sensor, can measure legth, width, depth. Laser rangefinder transducer with rxtx has been widely used to industries. Laser Distance Sensor Short Range,Short Range Sensors,Oem Laser Distance Sensor,Distance Sensor Laser Chengdu JRT Meter Technology Co., Ltd , https://www.accuracysensor.com