1. Department of Animal, Veterinary, and Food Sciences, University of Idaho, 875 Perimeter Dr, Moscow, ID 83843, USA
2. US Dairy Forage Research Center, USDA-ARS, 1925 Linden Drive, Madison, WI 53706, USA
3. Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030, USA
4. The Roslin Institute, Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, UK
5. Utah State University, Old Main Hill, Logan, UT 84322, USA
6. US Meat Animal Research Center, USDA-ARS, State Spur 18D, Clay Center, NE 68933, USA
7. Animal Genomics and Improvement Laboratory, USDA-ARS, 10300 Baltimore Ave, Beltsville, MD 20705, USA