My ten 12 wk. old pullets free-range around our farm, but don't really go out too far from the house and their little home. We have two big dogs that also call this farm home, and I keep the dog food barrell out, with a big pan next to it. The chickens have discovered the dog food and peck around at it. My instincts tell me this probably isn't the best food for them. I'm guessing too much protein? I know cat food isn't supposed to be good for them. The dog food is dry, usually from Rural King or Farm and Fleet. Not the highest protein, but higher than 18%, I'm sure. The chickens have access to their own food at all times, as well. It would complicate my life to ensure the dog food bowl stays empty during the day while the chickens are out, or to find a dfferent place to place it where they couldn't get to it, but if that's what I need to do to protect their health, I would do it. Experts...what do you say?