It's something out of The Omnivore's Dilemma. Joel Salatin pens his cows with a mobile electric fence that's basically a wire, a bunch of stakes, and a car bat

It's something out of The Omnivore's Dilemma. Joel Salatin pens his cows with a mobile electric fence that's basically a wire, a bunch of stakes, and a car battery. Michael Pollan notes that it took him and Salatin ten minutes to set it up or tear it down.