I sold pork, as well as pigs and hogs, for many years. I now just sell live animals. I vendored at farmers markets so I sold mostly by the pound instead of by halves or quarters. I will say that it really is an expensive venture, especially on the small scale. Typically, you'll get weaned pigs around 8 weeks old. From there, count on 5lbs of feed per head per day for a couple weeks (until they get started good). Then you'll gradually increase to 8-10lbs per head per day until they get up to around 110 lbs, then increase to 12 lbs until they reach 185-200 lbs, then you can either start backing off or switch to a lower protein feed. I've always been of the opinion, you're much better off if you can find some bbq pigs(around 130-150lbs). Around here, they usually sell for $.90-$1.05 lb. Also, you don't want to raise just one pig. You need competition to encourage they don't waste feed, plus it's good to be able to compare them. I'm definitely no expert but I'm more than happy to share my experience