I am planning on buying a couple of pigs to raise on pasture next spring and more from there. How many pigs per acre are recommended to be successful?

We raise Large Blacks, Tamworths, and Gloucestershire Old Spots on pasture in MI. 10 adult pigs per acres seems to be the concensus, but we prefer 6-7. With 6-7 plus their offspring you will have very little issue with pasture damage as long as you are rotating pastures regularly. There are exceptions..we have a Tamworth sow who can't resist the urge to hunt grubs and worms if it rains for two straight days...they are still pigs, but they are excellent grazers and pasture dwellers. Hope that helps!