Hi,
Now a final year student at liverpool. My interview was really nice, not too many technical questions. My advise would be think of a veterinary related activity that you have done i.e. work experience and be able to talk about that for 5-10 mins. Also look at recent events - for example bird flu & pre-movement TB testing, have a look in veterinary record or in practice. Or alternatively just look on defra website & google search veterinary topics.
Naomi