10oz whole goats milk( or evaporated goats milk)
1 raw egg yolk
1 cup whole plain yogurt( not fat free)
1/2 tsp karo syrup
This is what i have used on puppies in very very poor dehydrated condition.
I trust it 100% and so does my vet.
It does not need any vitamins added or pedialyte.
Being a vet tech for 14 years, we came across many puppies almost dead

i have used other formulas and homemade mixes and this one by far produces the best results for me

Is your puppy very active? Can u see his bones? Do you have a pic to compare the two puppies?