Join us for our 2020 Agricultural Animal program!  Enjoy 7 hours of instruction and hands-on learning on field necropsy, designed for the agricultural and mixed animal practitioner.


Field Necropsy for the Veterinary Practitioner: Better, Faster, Smoother

Join CVMA for a full day of lecture and hands-on learning on bovine necropsy. Designed for the agricultural and mixed animal practitioner, this program offers you the opportunity to increase your confidence, experience, and skill in conducting necropsies in the field. You will learn a realistic, practical, field-based approach to successfully conducting necropsy under a variety of challenging conditions while participating in hands-on learning from experienced experts.


Jim Sears, DVM

Dr. Jim Sears is a 1976 graduate of the University of Missouri, College of Veterinary Medicine. Prior to joining Bayer in 1996, he was in a mixed practice in western Nebraska where he focused primarily on cow/calf and feedlot production medicine. Following that, his practice consisted exclusively of feedlot consulting. As a technical services veterinarian for Bayer, he supports Bayer Animal Health farm animal products and related activities for the U.S., and occasionally Canada and Mexico.

Dr. Sears has served as president for the American Association of Bovine Practitioners (AABP) and the Academy of Veterinary Consultants (AVC). He was awarded the 1996 AABP Award for Excellence in Beef Preventive Medicine, the Distinguished Service Award by the NVMA in 1999, and the Bayer FAP Veterinarian of the Year in 2016.

Gary Mason, DVM, PhD

Dr. Gary Mason grew up in Colorado and earned a BS in animal science from CSU, a DVM at Texas A&M and completed anatomic pathology residency and a PhD at the University of Tennessee. His professional work experience includes two years of private mixed practice in Texas and serving as a faculty pathologist at the CSU Veterinary Diagnostic Laboratory since 1997.

Trent Fox, DVM, PhD, MS

Dr. James T. (Trent) Fox was raised on a farm in south-central Kansas. His lifelong interest has been cattle production. He received a PhD in diagnostic medicine/pathobiology and a DVM from Kansas State University, as well as a MS in ruminant nutrition from Texas A&M University. For five years after graduation from veterinary school, Trent worked as a staff veterinarian for a large cattle feeding organization in Greeley, Colorado. He was responsible for the health and wellbeing of their cattle, and played an active role in their research program.

Richanne Lomkin, DVM

Dr. Richanne Lomkin grew up on a small farm in rural Colorado that was just big enough to keep everyone busy. She graduated from the CSU Professional Veterinary Medicine program and then went to Albuquerque, New Mexico for an internship with USDA, Animal Plant Health Inspection Service, Veterinary Services. After spending a year basking in the wonderful weather of New Mexico and six years slowly freezing to death in eastern Idaho, she returned to Colorado as the field Veterinary Medical Officer for Northeastern Colorado. Dr. Lomkin thoroughly enjoys the opportunity to work with local veterinarians, ranchers, and farmers.

Marilyn Corbin, DVM, PhD, MS

Dr. Marilyn Corbin earned her BS in animal science from South Dakota State University and her DVM from the University of Minnesota College of Veterinary Medicine. Dr. Corbin then obtained a MS at West Texas A&M University, where her research emphasis was in feedlot health and nutrition.  After an internship in a cow-calf practice in Burwell, Nebraska she began her PhD program at the University of Nebraska, Great Plains Veterinary Educational Center. Her research emphasis at UN-GPVEC was feedlot epidemiology. Dr. Corbin is the vice president of the Academy of Veterinary Consultants and is a member of the American Association of Bovine Practitioners, National Cattlemen’s Beef Association, and the Nebraska Cattlemen’s Association. She is currently a managing veterinarian for Zoetis.


Monday, February 3

7:30-8 a.m.

8-11 a.m.

Check-in and Breakfast


  • Better, Faster, Smoother Bovine Field Necropsy (Dr. Trent Fox)
  • Tips and Tricks for Necropsy Ergonomics (Dr. Marilyn Corbin)
  • How to Submit Samples That Actually Get Answers (Dr. Gary Mason)
  • The Value of a Necropsy (Dr. Jim Sears)
  • Additional Necropsy Tips (Dr. Richanne Lomkin)

11 a.m. – noon


Noon-4 p.m.


  • Wet Lab: Hands-on Field Necropsy Practice (Drs. Fox, Corbin, Mason, Sears, Lomkin)
  • Small Group Show-and-Tell (Drs. Fox, Corbin, Mason, Sears, Lomkin)
  • Roundtable Discussion  (Drs. Fox, Corbin, Mason, Sears, Lomkin)
  • USDA Accreditation Module #12: Animal Disease Traceability (Dr. Richanne Lomkin)


Magnum Feedyard

11665 Co Rd 1

Wiggins, CO 80654


Register by January 27 to get early bird pricing!

CVMA members receive discounted pricing.


BONUS: Refer a friend and you BOTH save $100 on registration!

Cancellation Policy: A full refund, minus a $50 processing fee, will be allowed on registrations if received in writing by January 3.
Cancellations after this date through January 24 will receive a 50% refund.
Any cancellations after January 24 will not be refunded.
All cancellations must be submitted in writing to info@colovma.org.

Thank you, sponsors!

Premier sponsors
Supporting sponsors

Become a sponsor