There is hereby established the position of State Veterinarian, to be appointed by the Director of Agriculture. The State Veterinarian shall hold office at the will of the director. The State Veterinarian shall receive such salary as fixed by the director and approved by the Governor. The State Veterinarian shall have authority to employ assistants and fix their compensation, subject to the approval of the director. The State Veterinarian shall be a graduate of an approved College of Veterinary Medicine, shall be licensed and accredited as a veterinarian and shall have demonstrated administrative ability.