About Us
Dr. Kirk Gray Dr. Clay Breiner
DVM, MS at Kansas State University Center of Veterinary Medicine
Native of Kansas
At CCGN since 1989
Owner / Veterinarian		 DVM at Kansas State University Center of Veterinary Medicine
Native of Kansas
At CCGN since 2002
Veterinarian
Dr. Christy Gray Kathy Ellis
DVM at Kansas State University Center of Veterinary Medicine
Native of Colorado
At CCGN since 1991
Owner / Veterinarian / Financial Records		 Accounting
Sandy Zoeller Kari Smith
BS Animal Science at Kansas State University
Native of Kansas
At CCGN since 1994
Lab/Office Manager & Embryo Shipping		 BS Animal Science, Univerisity of Missouri
Native of Missouri
At CCGN since 2009
Embryo Technician / Embryo Manipulation
Troy Marple Spencer Jacobs
BS, MS Animal Science at Kansas State University
Native of Kansas
At CCGN since 2006
Donor Cow Manager / Farm Manager		 BS Animal Science at Kansas State University
Native of Kansas
At CCGN since 2007
Assistant Donor Cow Hersdman
Jenny Jacobs
 Mallory Heaton
BS Animal Science and Industry, Kansas State University
Native of Leavenworth, Kansas
At CCGN since 2010
Embryo Technician

 BS Animal Science and Industry, MS Reproductive Physiology University of Missouri
Native of Pittsfield, Illinois
At CCGN since 2011
Embryo Technician
Lacey Robinson
BS Animal Science and Industry, Kansas State University
Native of Wellsville, MO
At CCGN since 2011
Embryo Technician
Kim Harsh Gentrie Shafer
Native of Cassoday, Kansas
At CCGN since 2009
Donor Cow Manager/Farm Manager – Oklahoma Clinic		 BS Animal Science, University of Missouri 
MS Physiology of Reproduction, Texas A&M University
Native of Green City, MO
At CCGN since 2011
Lab Mangager/Donor Herdsman - Oklahoma Clinic