Randel was a Senior Fulbright Research Scholar to Australia in 1984, and received the Vice Chancellor for Agriculture's Distinguished Performance Awards for Research Off-Campus (1987) and for Team Research (1990). He received the TAMU Department of Animal Science Outstanding Service Award (1994), the American Society of Animal Science Physiology and Endocrinology Award (1996), the Build East Texas Award of Excellence in Research and Extension (1998), and was named a Texas Agricultural Experiment Station Faculty Fellow and a TAMUS Regents Fellow in 1999.

Professional memberships include the American Society of Animal Science, Alpha Zeta, Phi Kappa Phi and Sigma Xi. He serves on the editorial board for the Journal of Animal Science and on several committees within the American Society of Animal Science.