Potbelly pigs were first introduced to the western pet market in the 80's These pigs are tiny in stature when compared to their farm swine counter part. While many so called miniature pigs grow to over 150 lbs., true miniature pigs from a reputable breeder should weigh well under 100 lbs. and generally top out at around 60lbs. Compare this to a farm pig bred for the table that typically ways five times that of a mini pet pig and can tip the scales at 1000 lbs.