I had bought some chickens from someone a while back for human consumption... I found that they were trying to get rid of some chickens as dog food.. They are free, but now my friends want the chickens to butcher for themselves . The thing is, she has two different groups of chickens. Some old laying hens with a rooster and some younger birds (banthams). The young birds have had CRD, they haven't been treated for it though. The old birds haven't exibited any symptoms of it. Are all, or any of them safe for people food? If not, I can still feed them to my dogs and ferrets. But I wanted to see first.