An internship should prepare a veterinarian for high-quality service in practice or for advanced specialty training. It is primarily an educational program for the intern rather than a service benefit to the hospital.
Residency–A residency shall be advanced training in a specialty in veterinary medicine that is intended to lead to specialty certification in an AVMA-recognized veterinary specialty organization.
Veterinary specialty organizations establish guidelines for those residencies that will be approved as appropriate training for candidates for specialty certification. An approved residency program is conducted under the supervision of a board-certified specialist. A residency is usually narrowly confined to a specific discipline. A residency may in some instances be related to an advanced degree program.
A candidate should follow the guidelines of the particular specialty organization with which he or she is concerned to develop a program that will fulfill the requirements for certification in that specialty. The residency program should be approved in advance by the specialty organization before the candidate embarks on it.
2015 American Veterinary Medical Association