Berkshire pigs on Happy Hula Farm, a member of the Eden Farms collective. Amy Mayer/Iowa Public Radio hide caption

toggle caption
Amy Mayer/Iowa Public Radio

The antibiotic-free pigs roam freely on Niman Ranch in Iowa. Sarah Willis/courtesy Niman Ranch hide caption

toggle caption
Sarah Willis/courtesy Niman Ranch

Antibiotic-Free Meat Business Is Booming, Thanks To Chipotle

  • Download
  • <iframe src="" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript