average life... it is like talking of surviving rates after a cancer diagnosis (I am one of those survivors). It depends on too many factors, also our DNA. Piggies often come to the world after a consanguineous mating and this is not a good start; moreover they hide symptoms therefore their life depends also on the skills of owner and vet. The average life is longer now also because their diet has been changed in these last years; vets have understood that grains and sugars (flours) are not appropriate for them. But there are still a lot of owners who feed pigs in a wrong (and oldfashioned) way, this is what my vet says. This vet's wife has two very old piggies (8 and almost 9!), of course living with a piggie savvy owner is a great luck for these two pigs, but I am sure their long life depends also on their DNA and their (strict!) diet they have been following since the birth. We cannot change their DNA, but we can do a lot. If
@TAN's SIX piggies reached that gorgeous and enviable age cannot be only for their good DNA, but also for their breeding, the food and the healhty lifestyle found into that home.