Also, a few schools require classes such as Microbiology, Embryology, and Genetics. It is very important to know the current requirements of veterinary colleges you are applying to so that you can plan to complete them. In addition to prerequisite courses, veterinary colleges like to see that you have had some veterinary experience. Such experience is acquired through an internship. Internships should give one an overview of the work of a veterinarian.
Many schools require a letter of recommendation from a veterinarian.
The internship helps one to become acquainted with a veterinarian and allows the veterinarian to know the student. Students who have taken volunteer service roles in their communities or who have worked in other areas may be considered ahead of applicants who have only completed a minimum of course work and pre-vet preparation. As you consider this major consider that there are other options which may be equally or more attractive to you.