I was wondering if anyone has a source they buy from for non genetically modified feed? I am looking into growing my own chicken feed. Until then I need to feed them whatever I can buy. I'm feeding Purina right now but I'm not sure I trust it. I know their cat/dog food is poor quality. I checked with my local feed store and he had no idea what I was talking about. He recommended scratch for a full time feed. I said I heard that it raises a chickens body temperature so would it be a good idea during summer? Again, he had no idea what I was talking about. Any suggestions or recommendations?