1. Department
of Civil Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
2. School
of Natural
Resources, Water Sciences Laboratory, University of Nebraska-Lincoln, Lincoln, Nebraska 68503, United States
3. USDA-ARS, Lincoln, Nebraska 68503, United States
4. USDA Meat Animal Research Center, Clay
Center, Nebraska 68933, United States
5. Department
of Statistics, University of Nebraska-Lincoln, Lincoln, Nebraska 68503, United States