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
Over a period of years the poultry industry has grown until it has become an industry of considerable magnitude. Concurrent with this expansion the problem of disease has asserted itself, vexing flock owners as well as others interested in the industry. Poultry growers are showing great concern about the disease problems that may attack their poultry. This is manifested by the fact that there is a trend by flock owners to seek the veterinarian for help and advice on problems relating to poultry maladies.
Nelson, C. L.
"Diagnosing Poultry Diseases,"
Iowa State University Veterinarian: Vol. 13
, Article 7.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol13/iss3/7