I ferment my feed and have a LOT less waste that way, even with the girls kicking it out of the feed pans. I also don't worry as much about their water intake, knowing that every time I feed them they're also getting water. During the summer I dump in vegetable scraps too. From what I've read here, if you raise meaties right you can end up with some very motivated scavengers, since they grow so fast they're constantly hungry. If you leave a huge bin of food in front of them they'll just park their butts and eat, but if you encourage them to forage they'll wipe out an area of bugs. Some people have had a lot of success with feeding them fermented feed as well, and reported they weren't as stinky as meaties fed a standard diet. There's a few threads about it in the raising birds for food area.