Key-Lix's proprietary formulas and manufacturing utilize the highest quality ingredients and a combination of batch and continuous flow manufacturing to ensure a consistent tub from top to bottom. Key-Lix tubs are manufactured to consistently be below 5% moisture, making them hygroscopic. This precise level of moisture then allows approximately 20 lbs of product to be softened by ambient humidity and saliva a day. To regulate the feeding rate per day, adjust the number of head of livestock per tub. Ideally, cows should consume about 3/4 lb a day, which is about 25 head to a tub.