This is our first year with pigs as well. we picked them up a few weeks ago. They are in a smaller pen made of hog panels and T posts, then when we finished their pasture area (about 2.5 acres in all) which is made of stretched horse fencing with barbed wire up top with T posts with concreted corner wooden posts they will have three paddocks that they can be rotated through so we can start to grow some grass in each of them. We have not had any issues with them escaping but they sure gave it a good hard try for the first few weeks. Now they are happy to just enjoy their area. But the bigger they get the stronger they get, they could push over fencing that is not super strong. We took advice from
@Baymule for some of our design, we have not got the nipple watering system in yet, but I put their water in an old tire, now they cannot dump it, so for now that works well. We made them a house (we call it Hog Heaven) and when they were small we locked them up at night, but we are not doing that now. We live in deep woods with lots of predator's, so just wanted to be sure they would be safe. We also built this with other animals in mind, incase we wanted to get something else in the future - it could be use for other critters. We added guttering to the roof and directed it to the wallow we made out of clay, so they have a cool place when it gets hot, something we have to think about here in Texas. We also learned that pigs love wet food, and fermented food goes further and is better for their digestive system, so we feed them twice a day with a fermented wet mash... I know you are not there full time, so this will not work for you this time, but it might be something to consider in the future, it makes the food go twice as far, so costs less.