I'm visiting a local mill tomorrow (friend told me about it, she's paying half of what I am at TSC haha), and I'm unsure what I should get for the duckings and goslings. They're on Purina Flock Raiser right now, have about 15lbs left, so it's time to buy more food! Anyway, not sure what I should ask the mill for, and I can't seem to find the niacin content on the FR on Purina's site.