If you find a farmer or grain cleaner that might have screenings or scrap grain for cheap. I got lucky and have that which I use in a fermenting tub(thats not big enough) mixing everything in; lots of water, store bought pellets, kitchen scraps, garden leftovers could even use hay or other plant material. Works well even the wild oats seem to be digested by the pigs and goats. Without cheap grain I was paying $400/month now 50$.