I feed a mixed grain feed. I start with a good scratch and add stuff. Yes...stuff. The scratch i start with is corn, wheat and barley. 14 percent protein. the last 250 lbs i added 50 pounds of all flock pellets ( I bought this in a pinch before my grain came in). 15 pounds of oyster shell, 25 pounds of oats, and about 5 lbs of DE.