1. U.S. Fish and Wildlife Service, Bozeman Fish Technology Center4050 Bridger Canyon RoadBozemanMontana59715USA
2. Distillers Grains Technology Council, Department of Agricultural and Biosystems Engineering, Iowa State University3327 Elings HallAmesIowa50011USA
3. U.S. Department of Agriculture, Agricultural Research Service, Trout Grains Project, Bozeman Fish Technology Center4050 Bridger Canyon RoadBozemanMontana59715USA