I have brewer's yeast with garlic for my dogs. Can that be used for ducks too or is the garlic bad for them? I haven't found plain brewer's yeast yet. I did find niacin capsules and have been using those by breaking them open and putting some in the water.
I would probably be willing to sell some Brewer's Yeast. I will have to get out my invoice and see how much I need to get for it, but I bought a 50 lb. bag from an organic ingredient supplier, so I have enough to last me a lifetime. LOL