It seems like a lot of people who have a cow/calf operation on pasture also give them feed. People of my grandparents generation did not do that around here; they just let them graze pasture. It seems like giving supplemental feed is becoming popular now. I have plenty of pasture for my cattle, so I don't give them feed. I just let them graze like people use to do. If cattle have plenty of pasture, is feed really necessary? Does it make a huge difference?