Aggressive Labrador
I recently rescued a black lab puppy who didn't live the beginning of his life in the best of conditions.
He is currently 7 months old but was born into a dog hoarder's trailer with tons of other dogs and didn't see the light of day for a while.
At his foster home he was around 15 or so other dogs for a while before he came to me. Now, he lives with another lab, 8 months, and 3 miniature dachshunds.
He is never aggressive towards the humans at all, not even when I touch his food or toys or bones, but if another dog, especially the little ones come near his food or toys, he goes after them and bites them even until we break up the fight. He has made them bleed a few times now and I don't know what to do about it.
This is obviously unacceptable behavior and needs to stop. Any advice on how to discipline him regarding food/toy aggression will be appreciated.