The wal mart here sells all sorts of stuff. The Manna Pro starter, grit, and oyster. They carry lots of horse stuff as well. I prefer to shop at the feed store, but it is very difficult to get their with my work schedule.
I'm sure this has been discussed before, but a search didn't turn up anything helpful. Does anybody use this feed? It is sold at Wal Mart, but the bag says made by manna pro.