The livestock salt block is qian tons of pressure pressure molding, animal husbandry and free lick food then we can get all-round minerals, trace elements. Meet the daily add comprehensive minerals trace elements daily feed cannot satisfy. It has high density as hard as stone, this lick block adapt different climatic conditions: fear the wind, insolation, drench. Animal husbandry and gnaw bite motionless, lick feed can effectively controlled, animal husbandry and free lick food, not only ensure the daily intake of mineral trace element supplement, also avoid wasted, save artificially control, make true freedom lick feed through, herdsmen need not have professional knowledge using freely, enormous gain. The practice proves that minerals complete lick block after use, can increase the quantity, reproduction rate, immunity; Can totally digestion absorption, increase the utilization rate of feed.