Lock is a professor and associate chair for South Campus Animal Farms in the Department of Animal Science in MSU’s College of Agriculture and Natural Resources. A native of southwest England, he grew up on a dairy farm and witnessed firsthand the challenges farmers face in balancing animal care, production demands, and small business management. Those early experiences continue to shape his approach to research and outreach. Lock went on to earn his PhD from the University of Nottingham and later completed postdoctoral research both at Nottingham and at Cornell University.

Since joining Michigan State University in 2009, Lock has built a robust research and extension program focused on dairy cattle nutrition. His work has always prioritized practical relevance, guided by a simple philosophy: if he couldn’t explain the value of his work to his farmer father, it meant he wasn’t communicating it effectively or was focusing on the wrong aspect. His lab’s work centers on fatty acid digestion and metabolism, with an emphasis on how diet influences rumen function, nutrient partitioning, and milk fat synthesis. His research has challenged conventional thinking, opened new opportunities for the feeding of dairy cows, and led to the development of innovative technologies. His program is initiated and accelerated through collaborative inquiries and interactions with nutritionists and producers worldwide. Recent areas of focus include fatty acid absorption, fat supplementation strategies, transition dairy cow nutrition and health, and the regulation of milk fat synthesis.

“Dr. Lock brings a unique perspective to this role—he is a scientist deeply rooted in the practical realities of animal agriculture,” says Kim Dodd, dean of the College. “His ability to translate complex research into on-farm impact has earned the trust of producers, nutritionists, and academic peers alike. That same commitment to collaboration and innovation will serve him well as he leads the Department of Large Animal Clinical Sciences through this period of transition.”

Lock adds, “I’m honored to step into this role and work alongside the talented faculty and staff in the Department of Large Animal Clinical Sciences. The department has a strong tradition of excellence in teaching, research, and outreach, and I look forward to contributing to its continued growth.”

Lock succeeds Dr. Annette O’Connor, who is now serving as interim associate dean for Student Engagement and Success. The College will commence a national search for the next LCS chair in early summer.