Dr. Clayton Johnson is a veterinarian at Carthage Veterinary Service, Ltd. located in Carthage, Illinois. He is one of 11 veterinarians dedicated to the swine veterinary practice. Carthage Veterinary Service, Ltd. provides health, management, and production consulting to swine farms of all sizes in all regions of the United States and many locations abroad. Prior to working at Carthage Veterinary Service, Dr. Johnson served as the Director of Health and Animal Care at The Maschhoffs, LLC and oversaw the health services program as the company expanded from 100,000 to 200,000 sows. Areas of focus for Dr. Johnson include bio-economic models of PRRSv, PEDv and Mycoplasma hyopneumoniae management strategies; and swine veterinarian development and training as well as development of auditing and corrective action processes. Dr. Johnson attended the University of Illinois, College of Veterinary Medicine, receiving a Doctorate of Veterinary Medicine, continuing on to complete the Executive Veterinary Program.