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Ronald D. Randel, PhD

Professor, Regents Fellow, and Senior Texas A&M AgriLife Research Faculty Fellow
Texas A&M AgriLife Research
Overton, Texas

Temperament Is Linked with Stress Responsiveness and Is Controlled Genetically

Dr. Randel is an internationally recognized expert on bovine reproductive endocrinology and physiology. Due to his extensive basic and applied research with tropically adapted cattle breeds such as the Brahman, Dr. Randel has presented invited papers on reproductive and stress physiology topics on six continents. For over 2 decades, Dr. Randel and colleagues have studied the influence of prenatal stress and temperament on health and productivity of beef calves. Dr. Randel’s team used objective and subjective methods to assess calf temperament at an early age and demonstrated the heritability of temperament traits. For these contributions, he was the recipient of major awards from the American Society of Animal Science (Research Fellow, Physiology and Endocrinology Award, Casida Award for Excellence in Graduate Education, Distinguished Service Award) and the Texas A&M AgriLife Program (Individual Research, Team Research, International Involvement, and TAMU System Partnerships). Dr. Randel received his BS in Animal Science (1965) from Washington State University and his PhD (1971) from Purdue University. After service as a Research Scientist with USDA ARS in Miles City, Montana, Dr. Randel became an Associate Professor of Physiology of Reproduction at the Texas A&M AgriLife Research Center in Overton, Texas. As a member of the Department of Animal Science he has mentored over 32 PhD and 47 MS students. Dr. Randel’s recent research on physiological and genetic factors affecting beef cattle productivity emphasizes the influence of prenatal stress on postnatal performance and health.