Natural pig farming can be a compelling alternative to free range pig farming system, but they are different. Natural pig farming does not require a large area of land and pigs are fed by fresh fodder vegetables cultivated or cut where they grow naturally in wild. There are relevant facilities and some natural ways for heating and cooling to keep this system stable working in any climate. The number of pigs can be raised is considerably higher with natural pig farming, it is because pigs are kept in a more concentrated environment that never-the-less respects their need for space.