For MN specifically (the only place I applied, so I have no idea what interviews are like elsewhere beyond what I've heard), sure....
1) Research 'behavioral interview questions' online. You can find a number of lists.
This is an old article I found before my interview. I went out to coffee for a few hours with my wife and she just threw random questions at me and forced me to answer. I found the questions in that article to be very representative of the types of questions you will be asked. We're not supposed to discuss specific questions from our interviews, though. In general, I think it's fair to say that most of your questions will start with something similar to "tell me about a time when ....." They're not looking for you to tell them about personal characteristics that you
claim to have; they're looking for you to use specific, real examples from your life. From their perspective this approach gives them a chance to evaluate whether you really
have a particular quality. Anyone can claim to be good at debating (for example); but if you can't point to some debate club award on the wall and talk about it, the claim is pretty weak. Don't feel like you should use 'veterinary'-specific answers.
2) Take some time in the week ahead of your interview to be alone in a relaxed setting and just take an intentional, organized trip down memory lane. Think back on your life - things you've done, confrontations you've had, accomplishments, challenges, arguments, relationships, interesting experiences, etc. For me I tried to go year by year and just bubble it all to mind. Don't write it down or anything super organized like that, but just bring it all back to mind so it's fresh. Let it percolate a little bit. It will give you material to draw from during your interview.
3) Dress professionally in a way that you know makes you look good. If you feel like you look good, it will show.
4) Be friendly, be polite, look your interviewers in the eye 50% of the time, don't fidget, and
SMILE.
5) When asked a question, don't feel bad or awkward taking a few seconds to think about it. Even though it will feel like a horribly long, awkward silence, it's worth it to organize your thoughts so that you can give a coherent answer rather than just rambling away. 15 seconds will feel like forever, but it's really not, and your interviewers won't mind.