Extremely underweight 13 week GSD
I bought a 12 week old German Shepherd puppy last week, and noticed that he was extremely skinny. I asked the breeder why he was so skinny and she said it was due to the fact that he had trouble converting from milk to solids. He weighed in at 3.7 kilos at the 12 week stage, well under what he should be.
The vet has said that he looks healthy but extremely underweight. Since then, 5 days later I have managed to get him to 5 kilos but I am worried that he will not develop into the dog I want him to be.
He is eating everything we give him except biscuits we have to mix them in with his food, we give him around 40ml of puppy milk daily. His poop is normal, he drinks plenty of water and is very playful.
Has anyone had a similar situation or know of any? I would love to know if the dog grew to full size and if they didn't lack anything mentally.
Could he be a dwarf?
Any help would be much appreciated.