China has about 100 cockroach farms, and new ones are opening almost as fast as the prolific critters breed.The start-up costs are minimal — roach eggs and a run-down abandoned chicken coop will do. And notoriously hearty roaches aren't susceptible to the same diseases as farm animals. As for feeding them, cockroaches are omnivores, though they favor rotten vegetables discarded from nearby restaurants. Killing them is easy too: Just scoop or vacuum them out of their nests and dunk them in a big vat of boiling water. Then they're dried in the sun like chile peppers. Yummy!
