1. Food Science & Market Quality and Handling Research Unit, Agricultural Research Service, United States Department of Agriculture, Raleigh, NC 27695, USA
2. Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA
3. Marine Aquaculture and Research Center, North Carolina State University, N.C. Cooperative Extension, Jones County Center, Trenton, NC 28585, USA
4. Department of Agriculture and Environmental Sciences, Tennessee State University, Nashville, TN 37209, USA
5. Soybean and Nitrogen Fixation Research Unit, Agricultural Research Service, United States Department of Agriculture, Raleigh, NC 27695, USA