Do they dig or make any mud holes?
What kind of fencing would you need to keep the porkers around? Our chickens keep getting wiped out, I'm thinking moving to a sturdier stock might help.
A single strand electric nose wire around the pasture is the only fence you will need for pigs. Of course, that won't keep other animals out. Pigs are amazingly smart. They will get shocked once and never touch the wire again.
Very true years ago I worked on a hog farm that pastured sows. If you took the fence down and laid grain down across where the fence was they would eat right up to where the fence was and stop.
A single strand electric nose wire around the pasture is the only fence you will need for pigs. Of course, that won't keep other animals out. Pigs are amazingly smart. They will get shocked once and never touch the wire again.