I raised a couple of Yorkshire hogs. They were pink. Boy do they grow fast! Eating machines.
Hi-pro feed and scraps. Best pork I ever had. They lived the Life of Riley, one time they broke out of their pen and didn't go anywhere, they just started working their way through the underbrush near their pen.
There was one weed in the middle of their pen they never ate, but they consumed every other root and plant in there. They also shit in one side of their pen, and were pretty clean overall as long as you consider grooming themselves in dirt and mud clean, which I do. They take care of themselves pretty well, but they are definitely eating machines.