If the puppy had opened eyes before it was abandoned then it's going to survive but if not... there's nothing that can replace the milk of the mom
No, puppies that young can be fed with formula, just like human babies who lose their moms early. It's a lot of work, and mom's milk is best, but it's enough to keep them alive when mom just isn't there.
If the puppy had opened eyes before it was abandoned then it's going to survive but if not... there's nothing that can replace the milk of the mom