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Mad Cow Disease

Center for Food Safety
Center for Food Safety

Formally known as Bovine Spongiform Encephalopathy (BSE), “Mad Cow Disease” is a persistent food safety concern in the U.S. and abroad.  BSE occurs when cattle are fed rendered meat products made from other dead, disabled or diseased cattle or sheep as a feed supplement -- or when chickens are fed rendered animals and their manure is mixed into cattle feed.

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