Fears of Mad Cow Disease Reach Bullfighting Rings In Spain, the shadow of mad-cow disease now looms over the bullfight, where some 40,000 animals are slaughtered each year, producing more than $10 billion worth of prized meat. http://www.nytimes.com/2001/02/11/world/11SPAI.html or, if paranoid, try http://partners.nytimes.com/2001/02/11/world/11SPAI.html