Summary statics of United States commercial broiler data. a) Number of chickens processed; b) Average weight of chickens; c) Percent of chickens condemned by USDA at inspection; d) Average d to market; e) Efficiency of feed utilization (kg of feed required for one kg of live weight gain; and f) Percent mortality. Data from USDA Economics, Statistics and Market Information System (ESMIS). (http://usda.mannlib.cornell.edu/MannUsda/viewDocumentInfo.do?documentID=1497), and the National Chicken Council, Washington DC. (http://www.nationalchickencouncil.org/about-the-industry/statistics/u-s-broiler-performance/).