Prairie Diagnostic Services Inc. (PDS) is a member type non-profit corporation dedicated to providing veterinary diagnostic services. Its members are the Province of Saskatchewan and the University of Saskatchewan. 

PDS is located at the Western College of Veterinary Medicine (WCVM) in Saskatoon with laboratories integrated directly into the College. The laboratory provides a full range of diagnostic services including: necropsy, surgical pathology, clinical pathology, histology, bacteriology, immunology, molecular diagnostics, virology, and toxicology. A contract lab at WCVM provides endocrinology services.