In December, a study came out suggesting a link between distillers grains -- a waste product of the corn-ethanol process -- and a spike in cases of beef tainted with the deadly E. coli 0157 virus. You see, the government-mandated ethanol boom has dramatically pushed up corn prices. To cut costs, feedlot operators have been substituting cheap distillers grains for pricey corn. Thus in the past year or so, we've seen an explosion in use of distillers grain as livestock ...
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