The lives of billions of chickens raised in the U.S. each year will be improved. Compass Group and Aramark—two of the top three largest food service companies, which run dining operations at thousands of colleges, universities, hospitals, and stadiums nationwide—have made trailblazing animal welfare announcements. Specifically, they’re addressing the four key concerns for chickens in the meat industry: Transitioning to healthier strains of birds that measurably improve welfare issues associated with fast growth rates. Reducing maximum stocking…