In order to do well in this field, you must at least have a doctoral degree. By then, you will be allowed to work on researches related to farm animals or food production. You can also teach in universities to students majoring in animal science. Without one, your paycheck will be equivalent to those of agricultural technicians. For an annual salary of $34,700, this is a major that definitely does not pay off. If you really love animals, you can take veterinary medicine, even if it takes longer time to finish.