Hi, okay so colleges usually teach the level 3 veterinary nursing diploma and universities teach the foundation and or bsc veterinary nursing degree....Both of these will lead to you becoming a registered vet nurse. With college you don't apply through ucas, you get an application form from the college, with any university it's through ucas. The apprenticeship route is harder in that you would have to find a practice to take you on almost full time while you would go to a college I believe once a week for training classes. With the college route you would do 9 weeks placement 9 weeks college and so on throughout the course. With university it's usually maybe one small block placement in year 1 and a 12 month placement starting during your second year.
A vet nurse is pretty much the same as a human nurse- you help the veterinary surgeon, cleaning tasks, administration tasks , reception, monitoring anaesthetics, kennel cleaning and monitoring in - patients, instrument cleaning, admitting and discharging patients. An actual veterinary surgeon performs the surgeries, diagnoses the patients, writes prescriptions for medicines, consults with clients and such....its the same as a human surgeon and doctor.