Dr. Evan C. Titgemeyer is a Professor and Graduate Program Director of the Department of Animal Sciences and Industry, College of Agriculture, Kansas State University (Manhattan, KS, USA). Following completion of a B.S. degree at The Ohio State University (1984), he completed both M.S. (1986) and Ph.D. (1989) degrees at the University of Illinois. He is currently a professor in the Department of Animal Sciences and Industry, with a specialization in the area of ruminant nutrition. His research program focuses on protein and amino acid utilization by beef and dairy cattle. Recent research projects have evaluated amino acid utilization by growing cattle, with a special interest in the role that methionine plays in methylation reactions. Some nutritional compounds of interest include choline, betaine, homocysteine, creatine, and guanidinoacetic acid. Dr. Titgemeyer is a Fellow of the American Society of Animal Science.