Numerous authors have presented analyses of the world food problem and the appropriate role of animals in food production and have drawn qualitative conclusions. However, projection and planning require quantitative considerations, and this volume addresses that challenge. Experts in animal science, farm management, economics, international agriculture, and nutrition elucidate and debate germane issues with scientific rigor. They examine the efficiency and economics of animal production, feed resource availability, interactions between plant and animal agricultures, international trade, resource allocation, roles of animals in developing countries, and the nutritional values and limitations of animal products.