Quote:
the purina these guys are talking about is the old complete blend. which was corn free. I believe they have had that formula for years.
The one I have always used is the basic Rabbit Chow, in the green bag. As far back as I can remember, it has always had corn in it. The percentage may have changed, but there have always been tiny yellow bits in the pellets that are obviously coarsely ground corn, and an occasional whole kernel (oops!) in the bags. A few years ago, when the price of corn skyrocketed almost overnight, I had a serious case of sticker shock the next time I went to the feed store. The price of the Rabbit Chow had nearly doubled, and I was told it was because of the price of the corn in it. 
I will say, that I am thinking about changing what I feed. My rabbits' coats are dense, and supple, and all the things they should be, but they just look a little dull. I have seen rabbits as shows with coats that almost glow, and I figure, if I want my rabbits to be competitive, they have to look that good, too! I can't move the herd indoors, as some breeders I know have, but I am willing to tweak my feeding program a bit.