Miami-based Burger King Corporation has announced that its eggs and pork products will be cage-free by 2017.
The company is catching onto a national trend. Wendy's and McDonald's are making similar plans. Hormel and Smithfield Farms plan to end the use of cages in the same time period as BK. Already nine percent of the Miami company's eggs and 20 percent of its pork products are produced by animals that can roam.
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In 2007, the company became one of the first major chains to incorporate animal treatment as part of its buying policy. The following year, California voters passed proposition 2, which -- among other things -- bans use of "gestation crates" for chickens by 2015.
Walmart, Costco, and restaurants like Sonic and Subway are doing the same.