High I'm wondering what the Best high protein feed is for 300 pound beef and dairy calves on fair quality forage. To get Optimal weight gain without messing up their rumen for digesting the grass. They're in pasture, free choice grass getting 10 pounds of 17% protein feed that's Dried distillers grain. Soy hull corn gluten pellets and soybean meal. The 10pounds of grain is divided between 3head. I'm wondering if there is a better option for the calves. Any ideas are appreciated.