Dr. Dean Richardson feeds Kentucky Derby champion Barbaro a carrot at the George D. Widener Hospital for Large Animals at the University of Pennsylvania's New Bolton Center May 23, 2006. The condition of Barbaro continued to improve after the Kentucky Derby champion suffered a life-threatening ankle fracture in the Preakness Stakes, the surgeon who operated on him said on Tuesday. FOR EDITORIAL USE ONLY REUTERS/ Sabina Louise Pierce/University of Pennsylvania/Handout