I have four dogs who roam freely with the chickens. Training was minimal, really, but the dogs knew what "no" and "leave it" meant already. I watched closely for a while; now I just turn everybody loose.
Maybe I'll be sorry one day. They've been together for months without a problem, but I realize it could happen. However, these are free range hens, and the dogs also keep the fox, etc. away.
Just put your pups through a good training program. There are some good books out there. Hurting them is NOT part of a good program (not fussing at you for your reaction, at all, honest! I've done it, too. Just wanting to reassure you that training is not only possible, but best done, without causing any pain to the dog. No shock collars here, thanks.)
A couple of good dog training books have been mentioned on here. Maybe you could find the titles with a search, or maybe someone will come along on this thread that knows.