Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
You, as veterinarians working with swine products, are aware of the specialization that is coming to swine production. We have seen this trend become a reality in broiler, turkey, and egg production. In some areas it has developed in beef cattle fattening. It has been developing in swine production for many years. In the past few years, however, this trend has been progressing at an increasing rate.
"Problems of Intensified Swine Production,"
Iowa State University Veterinarian: Vol. 21
, Article 3.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol21/iss3/3