The Associated Press
MIAMI — The movement by U.S. food corporations toward more humane treatment of animals experienced a whopper of a shift recently when Burger King announced that all of its eggs and pork will come from cage-free chickens and pigs by 2017.
The decision by the world's second-biggest fast-food restaurant raises the bar for other companies seeking to appeal to the rising consumer demand for more humanely produced fare.
The decision by Burger King, which uses hundreds of millions of eggs and tens of millions of pounds of pork annually, could represent. . .