If used correctly, the shock collars are excellent training tools. We use them here and it generally only ever took 1-2 shocks for our labradors to learn that chickens zap. Our dogs are free run of our property with our chickens free range and we've never had an attack on our birds from our own dogs (altho I must also note that not all dogs are alike). Most hunting dogs are trained this way as well. I can't overemphasize "if used correctly". Please don't overuse the collar, as it will become useless and not work towards your goal. If you are unsure, find a local hunting group and ask them questions on proper training using this tool. Always start on the lowest setting and be prepared for that not to work and you will have to make adjustments.
I hope you will reconsider rehoming your dogs and train them to be a part of your family.
Jody
I hope you will reconsider rehoming your dogs and train them to be a part of your family.
Jody