How long would that pig meat last without electric power to your freezer for - say - 8 months?
And the other pigs running around - maybe 100 pounds each - how long would they feed a family without a freezer? Each pig would last less than three days unless you have the means and know-how to dry preserve meat. Then again every other family in the area will be after the same pigs - so curing them might not be an issue.
You can can meat (see corned beef)
Where I live there is a whole lot of space without a whole lot of people. Our place is just under 500 acres. Over 2000 acres just north of me is completely vacant and overgrown with brush. East of me is about 1500 acres only two people there. South of me is a piece about 360 acres open land maybe 4-5 people. West of me a piece about 200 acres, 1 person there.
The only people close to me are 4 houses on the road in, and each is sitting on over 15 acres. They all have a few cows.
Meat for the table is the least of my worries.
My sister has cows on our property. About 150 head cows and calves together.