35mg of Niacin per pound of feed is what I have written in my notes. I got this number from Holderread's book on raising ducks. Also check here for duck nutritional requirements.
Very roughly, after about five minutes of math and Google, brewers yeast would cost about $9 per 50# bag of feed. A Niacin supplement would be 18 cents per 50# bag.
Very roughly, after about five minutes of math and Google, brewers yeast would cost about $9 per 50# bag of feed. A Niacin supplement would be 18 cents per 50# bag.
