I'll never be able to brag about my dogs after a supposed incident, but...
We have three very large, Reg. Aussie, coydog, and half coydog/Aussie. You keep the chicks in the house and introduce them in the incubator, PAWS OFF. Then have them in a pen, PAWS OFF. I take them in with me, PAWS OFF.
Then gradually let them out with them all out in the yard, PAWS OFF.
A couple days ago I stepped in the house to get some treats for the dogs, came back out and the dogs were digging for moles, surrounded by the chickens pecking for worms in the dirt! I haven't had a problem. Just take the time to introduce them properly, teach them that they are part of the pack/family and you shouldn't have any problems.
Old timer trick...
If you have a chicken killer, wait till they do it and immediately tie the dead chicken around their neck until it rots off or you can't take it anylonger. Cures them every time.
It's really gross though.