Niles was thrilled to come home to Arizona in 1983, after 9 years studying in Minnesota and Iowa, followed by a year practicing veterinary medicine at a mixed-animal practice in California. His special emphasis is on dairy nutrition and feed management. Although ration formulation and monitoring are critical components of effectively feeding cows for maximum health and performance, working with overall agronomics includes consultation among farmers, seed companies, dairy producers and other agricultural specialists to maximize productivity while conserving resources and addressing environmental concerns. Dairy inventory control, data management and long-term planning are also included in scope of duties. Other professional activities include numerous field trial investigations, teaching and mentoring students, and serving on the Arizona Veterinary Medical Examining Board from 1995-2002.