Saurian Swinoid are a type of (surprisingly intelligent) strange pig-like animal native to the Borkt Home Planet.
When the Borky established a Mining Facility on Epsilon Gorniar II they brought a herd of swinoids with them for food purposes. When the miners were whiped out it appears their livestock escaped and acclimated to the world.
Jason Nesmith fought one before being attacked by the Gorignak, indeed he mistook it for Gorignak. To test the Digital Conveyer it was used on the pig lizard before Jason Nesmith, the digitized animal upon its arrival was turned inside out and then almost immediately exploded.