Nathan Winkelman, DVM, Swine Services Unlimited Inc.

Dr. Nathan Winkelman is an internationally recognized swine veterinary consultant and has presented at a multitude of major veterinarian and producer meetings for over three decades. 

Currently, Nate is president and co-owner of Swine Services Unlimited Inc. (SSUI) with Dr. Adam Mueller.  SSUI is a swine veterinary consultation and research company.  SSUI specializes in working with progressive pork producers throughout North and South America and more recently China, on swine health and biosecurity, production management and record analysis. SSUI also is a CRO (Contract Research Organization) for swine vaccine and pharmaceutical companies conducting GCP trials on all swine disease pathogens.

Dr. Winkelman also specializes in ileitis research.  He has developed an ileitis disease model, and since 1995 has emphasized conducting scientific trials with this disease and many others for the swine industry.  In 2012 he patented DLI® (Diluted Lawsonia intracellularis), a method of providing controlled ileitis immunity. 

Dr. Winkelman obtained a BS in Animal Science from the University of Minnesota in 1979 and a DVM degree in 1984.  He is the primary author of over 40 scientific articles, a book chapter, and co-author of numerous scientific papers on ileitis and other swine diseases. 

Dr. Winkelman is currently the AASV (American Association of Swine Veterinarians) President, and the recent recipient of the Leman Science in Practice Award in 2019.