Ask about aspects of the curriculum that are beyond student control:
Are terminal surgeries performed? Are they mandatory?
What options are offered for tracking?
What type of elective rotations do you get?
What about vacation blocks during 4th year?
Are external rotations mandatory?
What kinds of support services are offered to DVM students (counseling, health insurance, tutoring, mentor programs)?
How much PBL is in the curriculum?
What are the student:cadaver ratios for anatomy?
Do you like the organization of your schedule (blocks/semesters/quarters/etc/)?
Are there good opportunities for jobs/scholarships/grants?
How are exams schedules (dispersed throughout the semester, in blocks)?
Who supplies the animals used to practice techniques - students, the university, a local shelter?
How much communication/cohesion is there among different classes? Are there Big Sib/Little Sib or Peer Mentor programs?
How many people does each class lose each year, on average - and why (if known)?
Where are all of the courses, relative to one another? Are any of the facilities remote? (If you don't have a car or don't plan on driving, this can become a BIG deal)
Does the Teaching Hospital (if there is one) provide discounts on services for students?
Are you given grades? Rankings? Both? Neither?
Does your school foster a competitive, or a collaborative atmosphere?
Are you provided with areas that are reserved for DVM students - lockers, study rooms, etc?
What are the lecture halls like - desk space, power outlets, video recording?
Are there opportunities for social events - not through clubs - that are offered through the school? Running groups, game nights, knitting groups, whatever....
Does the school provide financial advice? If so, in what form? Do you get a talk once or twice a year, is there am financial adviser available, or are you on your own?
What sort of things are in the area to do when or if you have a free weekend - can you get to the beach/mountains/museums/concerts/rodeos/whatever easily, or do you basically have to wait until winter or summer break to get out of town?
Are there good opportunities for people who may not want to pursue traditional clinical practice? Research, public health, etc.
At what point in the curriculum do you get to first put hands on a live animal, and in what context?
Are there opportunities for employment, and does the schedule allow having a job?
These are just things that came to mind as topics that come up either as praise or complaint at my school. So whatever your stance may be on some of these, if it's important to you, you're better off factoring it into your decision to apply, rather than end up there and learn about it the hard way and be unhappy. I love my school, and some of the questions I listed are about aspects of my school that I love. Some of them are about aspects that people complain about, but they could have known if they had looked it up before applying. Obviously if you're with a student recruiter, they may be biased somewhat, but they should be able to answer your questions honestly.