I have 10 chickens and when I get home from work and collect the eggs I usually throw scratch on the ground for them. I was looking at what scratch is made of and it is pretty much just millet and cracked corn. Am I gaining anything from the millet or can I just buy cracked corn. Its about 2 dollars cheaper a bag. I'm not trying to be be stingy but anywhere we can save a buck is important. Any thoughts?