I just got 33 pekin ducks 2 days ago. It is the first time i have this kind of ducks. When are they ready to be processed? How big do they grow? For now, i have a 100 lbs bag of 20% protein food (this is what they gave me from the store and said this is what i need for them). I hope they don't grow as fast as the Cornish X chicken do. I see they eat the same tho.