i have 20 cornishx birds at about 6 weeks old. i weighed a big one today and he was just over 7lbs. i'm impressed. my concern is that they may eat me out of house and home before they go to slaughter. i feed them twice daily and a 50pound bag of 18% multi fowl lasts about a week. i also supplement with lots of veg from the garden (mostly tomatoes) and bread waste from a bakery. No matter how much i give them, they seem they could eat more and the feeders are always picked clean by night. how much should a bird eat without over doing it? thanks.