I don't like the fact that Purina won't make a layer feed for ducks or a starter feed for turkeys but i have been using the medicated chick crumbles for about 8-10 weeks since my grams old flocks a few years ago but the younger day old chicks seem to have issues eating a crumble whole. While the older chicks seem to think it's fun to knock their feeders over and this stuff looks just to much like the dirt to try and save. It sucks that the economy is so bad i just to be able to buy a 50lb bag for $12 but now i would be lucky to get away with paying $16. The older chicks haven't been eating as much feed as much as they had been(i'm guessing because of the heat). But as far as i know the feed isn't outdated and i will feed this to them until i can afford something better.