Terry Engle Editor

Terry Engle is a Professor of Animal Sciences at Colorado State University. His research interests include the influence of trace minerals on animal health and production.

Donald Klingborg is an Associate Dean Emeritus at The School Of Veterinary Medicine, University of California, Davis. He spent the majority of his career as a practicing veterinarian with an emphasis on cattle health & wellbeing.

Bernard Rollin is University Distinguished Professor at Colorado State University with appointments in the departments of Philosophy, Animal Sciences, and Biomedical Sciences.