First Step® Team

The First Step® Dairy Lameness Assessment and Prevention program was created by Zinpro Corporation and Dr. Nigel Cook, clinical associate professor in the food animal production medicine section of the University of Wisconsin-Madison School of Veterinary Medicine.

About Dr. Nigel Cook

Dr. Nigel CookDr. Cook qualified as a veterinarian in 1992. He worked in a large food animal clinic in Southern England for four years before moving to the Royal Veterinary College, Hertfordshire, where he spent three years as a lecturer and head of the Large Animal Ambulatory Clinic.

Since 1999, he has taught veterinary students in Wisconsin and developed research related to the influence of the environment on hoof and udder health. In his position, he also provides a milk quality, lameness and facility troubleshooting service to farmers. He is the current section head of the Food Animal Production Medicine Group and chair of the AABP Bovine Lameness Committee.

About Zinpro Corporation Dairy Lameness Experts

Dr. Mike Socha, Dairy Research – Team Leader, Zinpro Corporation
Dr. Mike Socha, Dairy Research – Team Leader, Zinpro CorporationDr. Socha received his bachelor’s and master’s degrees in dairy science at the University of Wisconsin and his doctoral degree in animal and dairy sciences from the University of New Hampshire. His doctoral research focused on determining methionine requirements of lactating dairy cows, while his master’s thesis analyzed the effect of feeding heated soybeans to early lactation cows on milk production, composition and fatty acid composition.

Prior to joining Zinpro, Dr. Socha was manager of dairy research and development for a major Midwest-based feed cooperative. His duties at Zinpro include overseeing the entire dairy research program and providing technical communications and support.

Dr. Dana Tomlinson, Research Nutritionist, Zinpro Corporation
Dr. Dana Tomlinson, Research Nutritionist, Zinpro Corporation Dr. Tomlinson earned his bachelor’s degree in dairy science at Ohio State University, Columbus, and both his master’s degree in dairy science, nutrition and management, and doctoral degree in animal science, ruminant nutrition and management at Virginia Polytechnic Institute and State University, Blacksburg, Virginia.    

Before joining Zinpro, Dr. Tomlinson was a dairy nutrition and management consultant with a major national feed manufacturer, specializing in technical sales support, feed product and program development, dairy business development and technical training.  His duties at Zinpro include overseeing dairy research projects and providing technical services and support. 

Dr. Jeff DeFrain, Research Nutritionist, Zinpro Corporation
Dr. Jeff DeFrain, Research Nutritionist, Zinpro CorporationDr. DeFrain earned his bachelor’s and master’s degrees in animal science from Kansas State University and his doctoral degree in animal science from South Dakota State University. His master’s thesis focused on the development and evaluation of a pelleted feedstuff containing raw soybean hulls and corn steep liquor for lactating dairy cattle diets. During his doctoral research, he conducted a series of experiments to evaluate the effects of diets formulated to increase the supply of ketones or ketone precursors on the carbohydrate status of transition dairy cows.  

Prior to joining Zinpro, Dr. DeFrain was serving as an on-farm nutritionist for a multi-site dairy operation in the Midwest. His duties at Zinpro include providing technical support for dairy to the North American and International sales teams.

Dr. Christof Rapp, Research Nutritionist, Zinpro Animal Nutrition (Europe)
Dr. Christof Rapp, Research Nutritionist, Zinpro Animal Nutrition (Europe)Dr. Rapp earned his Dr. Sc. Agr. (equivalent to a doctorate) from Hohenheim University, Germany. He joined Zinpro as a research nutritionist in 1999 and works from the European office in Boxmeer.  

His primary responsibilities include conducting research on animal performance, providing technical support to Zinpro customers and troubleshooting trace mineral nutrition related problems.

Additional First Step® Program Contributors 

Additional dairy industry experts who contributed to the First Step® program include:

  • Tom Bennett (University of Wisconsin-Madison)
  • Dr. Steven Berry (University of California-Davis)
  • Dr. Mike Brouk (Kansas State University)
  • Karl Burgi (Dairyland Hoof Care Institute, Inc.)
  • Dr. Adrian Gonzales (ANKA Hoof Care & Training)
  • Dr. Ken Nordlund (University of Wisconsin-Madison)
  • Dr. Garrett Oetzel (University of Wisconsin-Madison)
  • Dr. John Smith (Kansas State University)
  • Dr. Helwi Tacoma (Intelact, LTD)