Pardon my ignorance, but are there actually different ingredients in "mash" than in pellets? After reading posts on this board, it sounds like mash is inferior, but I just thought it was a different form of feed (crushed pellets for example). And what about crumbles? When I go to the feed store and ask for layer feed, they ask me if I want crumbles or pellets...I didn't know what the difference was (guess I could have asked!).