Have a ducking who yesterday started having trouble getting around . The other three are good. Getting ready to head to the store for a vitamin B complex with niacin. And was wondering about the brewers yeast I've heard that is good for birds too. What kind of brewers yeast do I need and where do I get it ? Have a brewing company close by. Duckling looks as tho his hip are turned out more then the others. No noticeable injury's. any help is welcome.