I'm not sure how much yeast, I was told to just kind of sprinkle it on until their food is covered. I do that when I notice their food is low (I always try to keep the bowl full, sorry if that's not good to do). I give them each about 750mg of niacin a day mixed with sweet peas.
I give them 1500 mg (3 capsules worth) of inositol hexanicotinate niacin everyday mixed in with some peas. She's very active in the tub. She absolutely loves going for swims.
A few weeks ago my father impulsivly got 2 ducks and I'm trying to take care of them the best I can. They are a couple weeks old and we think they are girls.
We have them on a dirt of kalmbach all natural chixk feed with nutritional yeast flakes, niacin, and peas as a treat. I let them swim...