Individuals who wish to advance their agriculture-related careers in the business, government and education sectors can enroll in graduate degree programs in the fields of agriculture, natural resources and animal sciences. Programs at the master's and doctorate levels can focus on topics such as agricultural leadership, technology and research. Students may take courses such as plant and soil science, animal husbandry and breeding, as well as management and public policy. Those who complete a doctorate degree can assume roles as agriculture professors or agribusiness leaders. Professionals can also use the knowledge they gain to work on international initiatives.