1. Department of Animal Sciences, University of Illinois at Urbana-Champaign , Urbana, IL 61801 , USA
2. Department of Bioengineering, University of Illinois at Urbana-Champaign , Urbana, IL 61801 , USA
3. The Beckman Institute of Advanced Science and Technology, University of Illinois at Urbana-Champaign , Urbana, IL 61801 , USA
4. Champion Petfoods LP , Edmonton, AB T6X 0P8 , Canada
5. Division of Nutritional Sciences, University of Illinois at Urbana-Champaign , Urbana, IL 61801 , USA
6. Department of Veterinary Clinical Medicine, University of Illinois at Urbana-Champaign , Urbana, IL 61801 , USA