Help - my duck can't walk or stand!

[Feyoung]

I got a baby duck I've had two weeks now. I noticed in signs two days after I bought it from tractor supply. I actually got two both have the b3 deficiency. One doing lil better but walk like a cat walk. Other can't walk at all at this point and I've had them on yeast in their feed for a week now. Not sure what to do at this point for the weakest one. Other walks around a lot more then he did.

 

[Miss Lydia]

What type of yeast? once they have the niacin deficiency the best way to treat is with Liquid B complex TSC carries one called Durvet. it will say injectable but we use it orally over a small amount of treat like dried mealworms. They need EACH 1 ml daily you need to get this asap because they can die from this deficiency. Hopefully you mean Nutritional yeast is good for support but once they have the deficiency they need the Liquid B complex. https://www.backyardchickens.com/threads/niacin-deficiency-in-waterfowl.1367557/ this will explain and also gives pictues of the liquid B complex.