Hi John, Where are you located? I would not like to farrow in the winter time around here without a nice warm barn.
I am having a problem with the math. You stated your property can hold 15 large hogs, and you want to farrow every month. I realize commercial operations aim for 3 farrowings a year from a sow but 2 is better in the long run. So 1 boar + 6 breeding sows + an inventory of min 48 piglets from 0 to 6 months of age=55 pigs. I don't know how to work that, but let us know if you find a way.