1. Dept. of Food, Bioprocessing, and Nutrition Sciences; North Carolina State Univ; Raleigh NC 27695 U.S.A
2. USDA-Agriculture Research Service, SAA, Food Science Research Unit; 322 Schaub Hall-NCSU; Raleigh NC 27695 U.S.A
3. Dept. of Statistics; North Carolina State Univ; Raleigh NC 27695 U.S.A
4. Prestage Dept. of Poultry Science; North Carolina State Univ; Raleigh NC 27695 U.S.A