| http://www.w3.org/ns/prov#value | - Yet attempts to duplicate BSE by deliberately giving scrapie to cows have failed, and many countries included sheep remains in cattle feed without creating BSE. This has led some scientists to speculate that BSE arose as a rare spontaneous condition in cattle, which spread to other cows ...To continue reading this article, subscribe to receive access to all of newscientist.com, including 20 years
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