Speaking as someone whos in an animal course.Thought I'd give you guys some hard truths as we all know the benefits
First off, the zookeeper, its a pipe dream. Unless you know someone in the industry ,you can do hundreds of hours of volunteer work and still not be considered for them.(my friend had to travel to Malyasia to get a job at one)
Anything surgical , such as Vet Nurse,Vet itself even some trained animal attendants, you will have to euthanase some animals, comes with the territory.
Pound/Shelters , differ from place to place but you will defineatley have to euthanase here, one of the highest going rates .
Animal Groomer, get yourself in an established buissness as very few people can survive doing this on their own.
Animal attendant,three quarters of their work, is cleaning (enclosures as well as putting enrichments out) and observing animals whilst occassionaly dealing with medical problems & maybe on the odd occassion playing with the animal.
Anything to do with marine biology/zoology means you will have to go to Uni for it and from what I've heard from the industry theres been a vast shortage of jobs going around currently.
You could do something similar to what I want to do, bring wildlife animals around to schools and educate the youth about them. Cross of educational/conservational talk.
I think what should be noted , is that no place will force you to disect but you don't want to end up one day with an animal on the surgery table in front of you and you have never dealth with REAL flesh, real muscles,artieries and veins. No amount of book/model work can prepare you for the real thing. THink of it like this, all aspiring doctors must go to the morge and work with bodies given to science, your doing the same thing, though less ethical perhaps.
Also if you don't like handing meat your going to constrict where you could end up as a lot of animals out there are carnivores. Think crocodiles,snakes & even seals.
A lot of these jobs will conflict with your morales and that comes with the territory, other adapt or move on.
Nearly all animal jobs are not well paid so you must do it for the love.
p.s(sorry for bad spelling, on my phone )