Michigan Compiled Laws, Chapter 333. Health § 333.18814

(a) Administers to livestock owned by that individual, except when the title is vested in him or her for the purpose of circumventing this act.

(b) Conducts experimentation and scientific research in the development of methods, techniques, or treatments directly or indirectly applicable to the problems of medicine and who in connection therewith uses animals.

(c) Conducts routine vaccination and pullorum testing of poultry under supervision of the national poultry improvement plan as administered by the official state agency and the United States department of agriculture.

(d) Is a regularly employed veterinarian of the United States department of agriculture or a full-time veterinary food inspector while engaged in the inspection of animals as food for human consumption.