BERLIN, GERMANY - JANUARY 05:  In this photo illustration an egg yolk and its shell are pictured on January 5, 2011 in Berlin, Germany. German authorities across the country are on high alert following the disclosure that the animal feeds company Harles and Jentsch GmbH sold large quantities of dioxin-tainted animal feed to poultry and hog farmers. Authorites in Lower Saxony have halted eggs and meats shipments from 1,000 farms as a precaution, and consumer groups have warned the public against eating eggs for the time being.  (Photo Illustration by Andreas Rentz/Getty Images
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