Some courses you might want to take depending on what you are going for:
General Animal Science
Animal Nutrition
Equine Care and Management
Animal Breeding
Laboratory Animal Science
Animal Anatomy
Physiology/Biology/Zoology/Microbiology/Physics
Genetics and Reproduction
Ethology
Muscle Biochemistry
Feeding Principles and Diet Formulation
Environmental law
General/Organic Chemistry
Public Speaking/Humanities