I always feed my dogs out of my hand for the first few months. Now that I have a son I have him feed the dogs out of his hand with my supervisen. From day one they know that they are a dog and it gets things from me. My son can take anything out of my dogs mouth without them caring. Even my one lab that has growled you can take things away anytime. I would make you dog sit before you feed it or before it gets any treat or toy. You need to establish dominance with the dog. You don't need to be physical. While all three of our dogs I roll them over and let my son stand over them while they are on their back. A dog on it's back is the most submissive stance for a dog. With your daughter standing over it the dog realizes that she is more dominant than her. Just my 2 cents.