Why is the average gestation period of swine 114?

Answer 1

There isn't a good scientific answer to this question - pigs happen to have a gestation of approximately 114 days (farmers will often cite this as 3 months, 3 weeks, 3 days). This is roughly consistent with animals of approximately the same size - dogs have a 60 day gestation and are somewhat smaller while sheep and goats can become around the same size and have gestations of approximately 5 months.