i wouldnt give him one of these bones at least for the time being, anything which encourages him to get into that possesive state of mind is not a good idea, he will not miss the bones

i wonder are you making a special effort to pet him when eating and take his food away?
because in some circumstances this can actually encourage the dog to become possesive if he feels that he has his treats taken away frequently he may feel frustrated and the need to protect them.
however this is only in some instances and the opposite can often be true,
good luck
i am currently dealing with a growly biting puppy myself
xxx