Can you post a picture of him and the Nigerian bottle baby?
He may just be a slower grower.
If he had an issue with worms, you wouldn't see a drastic difference in 3 weeks.
I have a buckling that had somewhat of an issue with worms and is also a super slow grower. Also, he gets "hay belly" more than my other goats. You can always tell when he just ate a bunch of hay because he gets huge. But it goes back down as he digests. It freaked me out at first.
Oh and welcome to BYH! There is a ton of information on here about parasites and dewormers so browse around a bit and you'll find a lot!
I find that most animals with a heavy worm load show it in many ways......poor coat, less lively, pale eyelids, etc. So, how are these issues with yours? In horses, low protein can create a thin topline & bloated look, some other animals will, also. This speaks to not simply amount of pasture/hay but quality stats. Lastly, if a worm load, you may do well getting a fecal to decide what type of issues you are facing, if any.
I know, many suggestions and no real answer. But, gotta start somewhere.
I was able to take this picture of them, the bottle baby is on the right and the dwarf is on the leftCan you post a picture of him and the Nigerian bottle baby?
He may just be a slower grower.
If he had an issue with worms, you wouldn't see a drastic difference in 3 weeks.
Greetings and welcome to BYH. Start off by saying not just any "vet" will do. Most vets are "pet vets" and don't have a clue when livestock are concerned. Not all livestock vets have a clue about goats. ASK before you waste your money. If you can find a vet familiar and knowledgeable about goats, you've hit the lottery. You really should do a fecal count before worming so you know if it's even needed and if so, for what worms. Not all wormers work on all worms, and most wormers don't work on cocci. We have a lot of great goat folks here and lots of experience and knowledge in the various threads (as someone already pointed out). Browse around a bit and make yourself at home. Glad you joined us!