Dr. Charlie Stallings is a Professor Emeritus of Dairy Science at Virginia Tech. His area of expertise is in forage quality and nutrition of dairy cows including environmentally friendly feeding. He also has experience in the areas of free choice mineral supplementation, harvesting forages for optimal quality, fecal scoring and diet interactions, forage analysis methods for ration formulation, and formulating rations for groups of lactating cows. Current research interests include precision feeding of dairy cows to reduce nutrient output.