9 week old puppy with no appetite - Page 1

I have a 9 week old German Shepherd puppy 9. 4 lb vet weight. He has been to the vet diagnosed with hookworms meds given has no appetite. He's on the same food breeder was feeding. All his bones are showing. I have tried canned 4 health puppy and several others and he will lick the spoon and walk away. Bought goats milk and not interested in that either. Vet said when worms are gone he will eat. But that was Tuesday and he's still not interested in food. Otherwise he's playing seems to have energy gums are pink and he's drinking. What can I do for him. I just don't want him to get behind on his growing