Hi and welcome from Australia. We have pigs, they love wallows, food, clean water, food, belly rubs, food oh and did I mention food. Seriously if their shelters are warm and clean, they are wormed and they have a wallow to cool down in they are literally as happy as pigs in mud. Some can be dominant and want to fight so it is always a good idea to introduce new pigs on the other side of a fence. As everyone else has said read through the pig section lots of good advice.