Definitely start early with investigating different schools and programs. No matter what type of biologically relevant undergraduate program you pursue, they all have the same basic requirements for math, chemistry, physics, and biology, whether you call it a B.S. degree in biology, herpetology, zoology, or the like. All will greatly prepare you for veterinary school (find out the school's placement rate as far as how many undergraduates are accepted into vet school as some schools fare better than others) or graduate school. Just FYI, I am an assistant professor of biology at Malone College, a small liberal arts school, that should be offering a new major next fall, a B.S. in Zoo Science. This will be a robust major, being rigorous enough to prepare undergraduates professionally for the zoo or affiliated fields, or graduate school or veterinary school. This major is in the works and will be a cooperative joint program with Cleveland Metroparks Zoo. This will be a competitive program, but I believe highly rewarding to those interested in working with animals (I didn't quite follow the jist of the first post.....but if you like working with animals, go for it). Zoo Keepers have not always made the best of money, but it certainly is getting better. There is also two other colleges that also offer a B.S. degree in Zoo Science (if interested, feel free to email me). Good luck and drop me a line with any questions.
Cheers,
Chris
Christopher K. Carmichael, Ph.D.
Assistant Professor of Biology
Department of Natural Sciences
Malone College
515 25th Street, N.W.
Canton, Ohio
Tel: 330-471-8175
Fax: 330-471-8371
Email: ccarmichael@malone.edu