How many people feed grain to their beef cows? My cows never see grain. The only time we feed grain is just before weaning to the calves and the while we hold the calves til after January 1st. We feed straw, alfalfa, sorghum sudan hay and grass hay. The percentage of each depending on the year. Our cows seem to do well, in fact they sometimes get too fat. Am I in the minority. I have a brother-in-law who feeds his cows grain 365 days a year.