My Muscovy drake has had a limp for a while, some of you may remember me creating a thread about him. I've been letting it heal on its own while watching him closely, and today I think I might've gotten my answer as to what is wrong with him. He'd been limping with only one foot, but now I find him favoring not only the other, but both. I'm starting to think its a niacin deficiency. I'm creating this thread because I want to hear what you guys suggest: brewers yeast or isn't there something like liquid B complex? Like, one for humans? I live no where near a tractor supply and don't know if any of the feed stores near me would have the liquid B for cattle that I've seen suggested numerous times here. I would also like to ask about dosage. If I do end up giving him something to see if this helps, could someone help me out with this? He's a full-grown Muscovy drake that's only a few months old. Thanks! Sorry if I got some facts wrong...I've only read up (and not recently) about leg problems and have never dealt with this before.