Excerpts from the report: Many changes in the structure and practices of the poultry industry have occurred since World War II. Technological advances in production and marketing have developed at a rapid rate. New types of firms and business arrangements have evolved to make effective use of these developments. Hatchery operations have become increasingly linked with breeding, nutrition, flock management, egg assembly, chick and poult distribution, poultry growing, and egg and poultry processing and marketing. Such linkages are referred to as "economic integration". This report describes and quantifies the principal economic characteristics of the hatchery industry, as determined from a national mail survey covering the year July 1, 1958, to June 30, 1959.