John Parrish, Ph.D, Professor, Department of Animal Sciences, University of Wisconsin - Madison. Revieved a Ph.D. from Cornell University in 1983, Post Doctoral position with N.L. First at the University of Wisconsin-Madison 1983 - 1988. Hired as an assistant professor at Department of Meat and Animal Sciences, University of Wisconsin-Madison, 1988. Promoted to Associate Professor in 1995 and Full Professor in 2000. Most cited paper is: Parrish, J. J., J. L. Susko-Parrish, M. A. Winer and N. L. First. 1988. Capacitation of bovine sperm by heparin. Biol. Reprod. 38:1171-1180; with 1480 as of July 1, 2018. Area of expertise is male physiology with an emphais on control of male fertility and impact of heat stres.