If you want to stop your dog from making pig noises, there are several things you can try. Make sure you have a good relationship with your dog. If you don’t, then your dog may think that making pig noises is an acceptable way to show you how much he loves you. Avoid giving your dog treats when he makes pig noises. It will only reinforce the behavior. Try to ignore him as much as possible. This will help teach your dog not to make pig noises in the first place. Consider getting another pet. Your current dog may be confused by all the new pets you have at home