Whatever courses you took for the degree will be listed in the course section, but you should make an entry and talk about your research project in the "veterinary experience" section. (Yes, even if the research was not veterinary (i.e. clinical) in nature, and even if it didn't actually involve live animals. Loads of past threads on classifying experiences where this has been brought up. I drew the line at including my plant biology research as "veterinary" just because it was research, but did include the molecular bio research I did on yeast.)