REGULATORY FAILURE. “Even if feeding cattle to cattle is banned in the U.S. and Canada, feeding the banned cattle tissue to poultry and pigs is common and legal in both countries. Protein additives extracted from diseased cows and fed to chickens and pigs contain the same infectious prions that cause mad cow disease. When the birds and pigs who ate the prions are in turn fed to cattle, the infectious tissue is recycled back to its source.”
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