From Alison Cook, Houston Chronicle:
"The key to grass-fed cattle is keeping them cool, shaded and comfortable," Frank told us, "not running around and nervous." He pointed out the solar-powered electric fences that divide the pasturage into long paddocks where the cattle run for three or four days, feasting on the grasses before moving on. The used paddock is dragged to spread the manure, replenish the soil and kill any larvae, keeping the pasture pest-free. At one point, the family ran their free-range chickens behind the cattle, but predation from raccoons and hawks eventually put a stop to that experiment in integrated farming.