I have half a dozen Ancona ducklings on their way in a few weeks and had a few questions on starter feed. If I were to start them off on a 16% grower feed but supplemented live or dry meal worms.... would this make up the protein difference from the 20% starter? Also, I've been reading quite a bit and it sounds like naturally ducks would get their niacin requirements from insects. Would the meal worms also cover that aspect? I'd like to keep their diet as natural as possible. Smaller percentage of grain and more veggies/fruit/insects from forage/free range.