I am getting 8 sows & 2 boar hogs to provide some of the meat for our farmers market and sale pigglets. The farmer I am purchasing them from has them on free choice bulk feeders and goes through tons of feed. The area we want to feed them is soon to be constructed with open field and woods for free roaming. We will set up individual farrowing pens, a sorting pen, feeding pen for pigglets and an area for feeding sows. I want to limit the sows feed intake to about 7-8 pounds per day just to maintain them and keep me from going broke. The grass and woods should provide the balance. What feeding pen design or method would you recommend to accomplish feeding each sow limited grain suppliment? Thank you all.