Dr. Mieke Holder is an assistant professor in the department of animal and food sciences at the University of Kentucky. Her research focuses on the environmental impact of grazing animals, with a particular interest in mineral nutrition.

Prior to joining UK, Holder worked for Alltech South Africa, where she established an in vitro research laboratory. Prior to that, she held a post-doctoral position at Alltech's headquarters in Nicholasville, Kentucky, where she evaluated in-feed methane mitigation strategies for ruminants in vitro.

Holder received her bachelor’s and master’s degrees in animal science, with a specialization in nutrition, from the University of Pretoria, South Africa, and her doctoral degree in equine nutrition from the University of Kentucky.