The deer need a certain type of bacteria in their gut to digest peas. If they have been eating peas and have the bacteria, they will favor peas, if they haven't, they will go after corn. Peas are 20 to 35 percent protein, depending on type, and are a lot better for the deer. If you want healthier deer and better racks, you should feed them all year, instead of just during the hunting season. Bill
PS. You should also consider feeding them after the rut is over, that is when the bucks are worn down and really need it.