This biological absurdity, characteristic of all CAFO’s, is compounded in the cattle feed yard by a second absurdity. Here animals exquisitely adapted by natural selection to live on grass must be adapted by us – at considerable cost to their health, to the health of the land, and ultimately to the health of their eaters – to live on corn, for no other reason than it offers the cheapest calories around and because the great pile must be consumed. This is why I decided to follow the trail of industrial corn through a single steer rather than, say, a chicken or a pig, which can get by just fine on a diet of grain: The short, unhappy life of a corn-fed feedlot steer represents the ultimate triumph of industrial thinking over the logic of evolution.
Source: The Omnivore's Dilemma: A Natural History of Four Meals (Large Print Press), Pages: 68
Contributed by: HeyOK