Also a Veterinarian and don't have much to add to what arrow and big red said.
I'm one of the fortunate few that took out nominal loans and paid off as soon as I graduated. Got some inheritance from my paternal grandmother that covered one year of in state tuition at UGA. My father passed away as well right before I started vet school and his life insurance helped open things up for my mother to help out.
If either you or your wife own your own business, you could potentially pay your daughter in some capacity to help with living expenses. My mother owned a couple of automated car washes, so I was on the books as a carwash consultant. Talked with my mother about the business for 2 hours a week and that paid for my rent and majority of my food.
Playing devil's advocate, and because of your response to bigred, I would try to steer your daughter away from this profession. I don't think I would want any of my children to do it. I'm good at what I do, and am never bored, but the mental toll can be a lot. You can do everything right within the owner's budget and expectations, only to have things go to crap, and have pissed off owners. The equine world would be worse too. Horse folks are nuts.
Her debt to income ratio will be bad, especially if she goes into large animal/equine field, adding to the stress level. I'd tell her to go to medical school and work toward being an anesthesiologist.
The Army does have a loan forgiveness program for Veterinarians. You have to join up for 2-4 years after graduation. There's also programs for working in underserved areas, particularly large animal, where you can get full loan forgiveness after working in that area for a certain period of time.