1. South Dakota State Univ. Brookings SD 57007
2. South Dakota School of Mines and Technology Rapid City SD 57701
3. USDA‐ARS Lincoln NE 68583
4. University of Nebraska‐Lincoln NE 68588
5. USDA‐ARS Mandan ND 58554
6. North Dakota State Univ. Fargo ND 58105
7. Ohio State Univ. Columbus OH 43210
8. North Central Agricultural Research Lab. USDA‐ARS, South Dakota Brookings SD57006
9. Çanakkale Onsekiz Mart Üniversitesi Animal Science Department‐BMYO Çanakkale Turkey 17200