Hello. I am a 3rd year student at the University of Melbourne, which just received AVMA accreditation this year. Our course is a 4 year degree. Murdoc requires 5 years. I'm not sure about Sydney or Massey. Australian students who apply to the Veterinary Science course here are required to do at least one pre-vet year, making many of them 19 years old when they are first years. Our year, however, has many mature students, I would say the average age of students starting first year was around 25. The range was 17-33! Our class also has many more students than a typical US vet school. We started out as 90 students, we are now 82, I think. I can't speak for all the schools, obviously, but here we have the first 2.5 years in lectures and practicals/labs. You deal with live animals pretty much from day one, though they are not "clients animals". The final 1.5 years are in the Clinic and Hospital, with the last semester of that on four 3-week long extramurals as a "trainiee veterinarian" which can be done anywhere in the world.
It is my opinion that any school that is AVMA accredited has the exact requirements that are necessary to make you a successful veterinarian, no mater where you decide to practice. Of course, I am also bias, seeing as how I
attend one of the said schools! The only thing that I would choose to change, if I had the chance, would be to have more exams. Yes, I said it. More. We pretty much only have final exams every semester. I find it difficult to adequatly demonstrate my knowledge in one 3 hour written exam per subject+ or- an oral exam. It also doesn't help that most of the exams here are all written. No short answer or fill in/MC of the sort I was used to in the States. So that took a lot of getting used to, fewer exams in a different format. It makes you grades a lot more subjective.
As far as the actual information, we learn a lot about "exotic" diseases here since Australia is free of many of the diseases that are common in the rest of the world. But we do learn about them even though we won't actually see them in the hospital or necropsy room. The only other thing that is sometimes frustrating is that, while the Genus of a particular parasite may be the same, in many cases the species is different. Oh and I almost forgot about drug trade names! They are also different in many cases. So basically, as long as you remember that there are differences and can keep them straight, It's good.
As for large animals, a lot of the management practices are different simply because the weather is different. For example, it doesn't snow in the areas that dairy cattle are raised, so they have a pasture based system all year round, while dairy cattle in the US are largely indoors. We do learn about how certain things are not as/more important in the other systems, but it is not the focus. Again, something you need to do research on in your own time, especially for sitting the NAVLE and in practice. The good part about that is that pretty much all the textbooks are North American based, so it isn't hard to find the information. And I know craploads about sheep, more than I will ever need to know living in most areas of the States!
Feel free to ask any other questions that you may have, either here or through PM.
Oh, I forgot to add, I didn't apply to any US vet schools after my undergrad, I just came straight on over since I wanted to have the experience of living abroad! Im not sure if it matters, but in case you were wondering