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
This past summer it was my pleasure to be employed by James R. Howard (ISU '54) D.V.M., Ph.D., veterinary pathologist, of the Imperial Valley of California. Dr. Howard has established an almost 100 percent feedlot practice. I present this paper to help inform veterinarians of how cattle are handled in this particular commercial feedlot practice in hopes that some ideas can be transferred to other feedlot setups.
Collins, Richard D.
"Commercial Feedlots and Veterinary Medicine in the Imperial Valley of California,"
Iowa State University Veterinarian: Vol. 31
, Article 14.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol31/iss3/14