Recently I started exploring iTunesU on my iPad. I found a search of the term "veterinary" returned quite a few results, but unfortunately nothing recent. Perhaps some of the early adopters had a hard time promoting the content to their students, and gave up. There are courses as well as informational episodes dating back to 2008 from schools like UCDavis and Cornell. More recently Ohio State posted "Introduction to Veterinary Anesthesiology " - an actual course.
Everything I looked at can be downloaded and viewed by anyone, at no cost. But, obviously you're not going to receive any credit for the coursework unless you're enrolled in the class.
More and more college level coursework is being done online, it will be interesting to watch this category and see if more introductory courses are added in the future for veterinary students.