The title just means " it came from a cow." Years ago I used to deliver to Draper Valley Chicken processors in Mount Vernon, WA. They had a conveyor belt exiting the building, dumping the few pieces ( beaks & talons mostly ) that could not legally be sold as human food into open dump trailers, which were then hauled to a pig farm in B.C.. Rumor was, it was the farm owned by the guy who was later convicted of killing several prostitutes over the years; their bodies were never found.
Hookers -- The other White Meat ???