Janghan Choi, PhD, is an Assistant Professor of Nutrition and Microbial Ecology in the Department of Animal and Food Sciences at Texas Tech University. His research focuses on gut microbiome ecology and applied nutrition to improve health, productivity, and food safety in monogastric animals, including swine and poultry. Dr. Choi integrates microbiome science, omics technologies, and production-oriented nutrition to investigate host–microbe interactions, control foodborne pathogens, and enhance animal resilience under environmental and nutritional stress. His work bridges pre- and post-harvest systems to improve both animal performance and meat quality. He has authored over 50 peer-reviewed publications and leads multiple competitively funded and industry-supported research projects.