Samuel E. Aggrey, Richard B. Russell Endowed Chair and Professor in the Department of Poultry Science, is a global leader in developing and applying emerging technologies of quantitative genetics, molecular biology, and bioinformatics to critical issues in the poultry industry. His research interests include genome selection, genomics of nutrient utilization, molecular and cellular bases of stressors, and genetic improvement of poultry. He has made advances in understanding linkages among nutrient components, parasite load, and genetics that affect birds’ microbiome and gut health. As part of an international consortium, he helped identify and map 14,000 genes associated with growth and development in poultry, which aid breeders in producing more disease-resistant, feed-efficient, and heat-tolerant birds. He has also improved understanding of certain pressures on poultry production, such as water intake, heat stress, and a genus of parasites called Eimeria, which are capable of causing the disease coccidiosis in poultry and other animals.