The most important thing your dog needs to learn is NO.
Walk you dog on a lease in and out of the house on a leash. It is a hard habit to break when it's already started. Shock collars are cruel. You have to teach the dog but you have to have control of the dog to teach him. To have control at first requires a harness with a leash.
A firm NO when he goes to lunge toward the cats with a slight jerk with his leash. Get his attention away from the cats. He has to be shown this is unacceptable behavior.
Great Pyrenees dog are protectors. He needs to know these cats are part of his pack. After he understands that, he will protect them from predators. He needs to see YOU and your family petting and loving these cats so he know they are a part of his area. He won't understand otherwise. It's won't happen overnight, but it can happen, but it takes a little work on your part.
Lease him outside for quite some time. Give cat love in his presence and tell him NO when he reacts to them. Not just NO, but no chasing the cats. You have to change his relationship and how he views the cats. After you correct him about the cats, let him see your displeasure. Do not pet him for a while afterwards. Be the alpha. He needs to know he is not the alpha.
Walk you dog on a lease in and out of the house on a leash. It is a hard habit to break when it's already started. Shock collars are cruel. You have to teach the dog but you have to have control of the dog to teach him. To have control at first requires a harness with a leash.
A firm NO when he goes to lunge toward the cats with a slight jerk with his leash. Get his attention away from the cats. He has to be shown this is unacceptable behavior.
Great Pyrenees dog are protectors. He needs to know these cats are part of his pack. After he understands that, he will protect them from predators. He needs to see YOU and your family petting and loving these cats so he know they are a part of his area. He won't understand otherwise. It's won't happen overnight, but it can happen, but it takes a little work on your part.
Lease him outside for quite some time. Give cat love in his presence and tell him NO when he reacts to them. Not just NO, but no chasing the cats. You have to change his relationship and how he views the cats. After you correct him about the cats, let him see your displeasure. Do not pet him for a while afterwards. Be the alpha. He needs to know he is not the alpha.