After many hours of reading, research and talking with my Veterinarian, we picked the Juliana Pig because it is a breed of pig, with a naturally small size. There is a lot of information and misinformation about Mini, Micro and Super Mini pigs. What I found was when I asked some of these breeders what breed of pigs they were breeding, they either couldn't tell me or stopped talking to me.
In other animal and livestock breeding programs there is a standard for the breed of animal or livestock you are breeding. Then you breed to insure healthy offspring with those desired characteristics. You would never breed a "Runt", this would not be a desired trait when breeding for a healthy animal. I understand the desire to have a smaller pig as a pet, but not at the risk of an unhealthy pig or making a claim that can not be backed up.
This is also where the horror stories you read about take root. When you breed, lets say an American Yorkshire, which naturally weighs 200+ lbs. and you breed the runt from this pig to a KuneKune which is a smaller breed pig that naturally weights around 100 lbs., the offspring of these 2 might be small at birth, but the adult size of these offspring could go either way, you could end up with a 200+ lb. pig that looks like a KuneKune or a 100 lb. pig that looks like an American Yorkshire. And even if you keep breeding the runts from these new litters, no breeder can guarantee that the offspring will not inherit the genetics of the larger pig, even generations away from the original breeding.
Here at Les Petites Pigs we are going to breed to the standards set by the Juliana Pig Association & Registry. I am going to trust that the breeder I purchased my adults from was telling me the truth about the heritage of my Boar and Sows. Until DNA testing is required the heritage of any animal is going to be hard to trace. The Juliana Pig Association & Registry and the American Mini Pig Registry is a great first step.