If you don't have high enough Animal Kinship, then you won't be able to incubate it. Ask someone else to incubate it for you and give you the piglet. You can take the piglet where you want to let it loose, and then feed it until it grows up.
Incubate a chicken. Put it in your backyard. Or buy a chick off action. Feed it grain. Then you'll have the necessary chicken to incubate your future herd of pigs. Also butterflies.
Great system.