Mad cow has nothing to do with chicken manure. Cows that already had mad cow disease were rendered and the resulting product was used in cattle feed. This infected even more cattle. The most common country for mad cow disease is Great Britain.
I seem to remember that a voluntary moratorium on animal protein in cattle feed was declared by the American feed industry a decade before most people had heard of mad cow, which is why we have had so few cases.
Some people believe that scrapie in sheep is the origin of mad cow disease. Others believe it already existed in India, and that bones from infected cattle were collected and sold for bone meal, which was then sold to Great Britain and used in cattle feed. There is no proof yet where it started or how long it has been around.
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Today's Featured Article - History of the Nuffield Tractor: Conclusion - by Anthony West. In the last piece I mentioned that Nuffield had reached the stage where they had chosen to drop the "Universal" from production. The two new models were given three figure numbers, instead of "three" and "four". Model numbers were introduced to help farmers and dealers instantly recognize the engine size and horsepower of the tractor, the 4/60 had a four cylinder diesel engine which developed 60 bhp at 2,000 rpm. The 3/42 had a 3 cylinder diesel engine which produced 42 bhp at 2,000 rpm. Th
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