Water consumption critical to beef cattle health, production
High Plains Journal
According to Glenn Selk, Oklahoma State University emeritus Extension animal scientist, daily water requirements for the non-lactating beef animal will run from 0.75 to 1.5 gallons per 100 pounds body weight, or 6 to 12 percent of their body weight. Lactating cows nursing calves may consume 18 percent of their body weight.
The Beef Blog 