I just switched my ducks to a homemade feed that's based somewhat off of Scratch and Peck's 18% feed, because they just seemed to have issues with the feed from the feed store. I ferment it for them and I've never seen them go so crazy over food. Whenever they see me they gather around and quack their heads off. You'd think they hadn't eaten in days. But the thing is, their egg production has gone way up since switching. Is that an accurate sign that they're getting enough?