My baby Debo is a surviving parvo pup and I need to get his weight back. I have him on pedigree puppy food and it is not helping what else could I use?

How long ago did your pup recover from parvo? Sometimes it just takes time for the body to recover.

You could always try adding some canned food to his meals.. maybe start with 1/4 of a can twice a day to see what happens.

You should also consult the attending vet. Who helped your puppy. Lack of weight gain is a concern they should know about. Maybe the vet will prescribe an ultra high calorie canned food to help out.