Dr. Vaughn Holder is the global beef research director at Alltech. In this role, he oversees Alltech's beef research around the world and works to improve the scientific understanding of the role beef cattle play in ecosystems and food systems.

Holder first joined Alltech in 2012 as a post-doctoral trainee, with a focus on advanced technical support in ruminant protein nutrition. In 2013, he transferred to Alltech’s office in Stellenbosch, South Africa, where he served as the company's national research and technical director. Holder returned to Alltech’s research headquarters in Nicholasville, Kentucky, in 2015 to lead the company's global nutritional research in beef species. He later served as the director of Alltech's global ruminant research group, heading up global nutritional research in ruminant species, before being appointed to his current role in 2024. 

Holder holds a bachelor's degree in animal science and a master's degree in ruminant nutrition and microbiology from the University of Pretoria, South Africa. He also holds a doctoral degree in ruminant nutrition from the University of Kentucky, where his research focused on nitrogen utilization and protein nutrition in cattle.