Kayte and Justin Graham take a decidedly green approach when it comes to pork production at their Zanzenberg Farm in Center Point. Instead of keeping their hogs in close quarters, they allow them to roam freely in grazing pastures to take advantage of Mother Nature’s bounty. The Grahams say the animals benefit from vitamin D supplied by the sun along with minerals from the soil and nutrition from a variety of plants that combine to create a natural “salad.” Ironically, pigweed ranks h ...