M. E. FriedmanThe authors of "Preservation of Bull Semen at Sub-Zero Temperatures" are N. L. VanDemark, W. J. Miller, W. C. Kinney, Jr., Carlos Rodriguez, and M. E. Friedman. They conducted research between 1952 and 1957 at the University of Illinois Agricultural xperiment Station to perfect the freezing technique for preserving bull semen. The authors collaborated on practical freezing procedures and experiments to provide insights into the freezing process. Their work aimed to improve the preservation of bull semen for breeding purposes. Read More Read Less