That is good to know brewer's yeast is high in Vit. B.....I have been adding it since I got ducks about 4-5 years ago because it is high in Niacin (is that a B vit.?) and ducklings need more than chicks....and I have just kept adding it year round to all feed...cause it can't hurt. I'm not sure if I add it in sufficient quantities to the adult feed to make a difference...Glad you are changing the food. Brewers yeast is also a good source. I just happened to have some so have been adding it in to any mash I make for them.
