Range cubes for supplements?

[junior]

I was putting out range cubes out like hand corn this season and the deer seemed to like it. Only problem was so do the pigs and coons! I'm building a pen this off season to keep pigs out and will start trapping the coons to keep those #'s down. I was thinking build a trough, and fill with range cubes and corn or just straight cubes. Any downside to this? Better/cheaper alternatives?