Hello again everyone, I have 15 rhode Island reds and 5 buff ducks, I have been feeding them store bought grower feed. They are about 3-4 months old. I work on a farm and the Farmer said I could have grain for free to feed them with, But how should I mix it. I would like to produce the best egg I can if possible. I talked to alot of old chicken farmers and they said to fill one feeder with corn and one with oats and thats it. They do run outside and eat alot of grass and bugs. Any knowledge and help would be appreciated. Thanks.