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
Processing the feeder calf for its entry into feedlots is already receiving considerable interest among cattlemen. Several states are programming sales of only processed calves in feeder cattle sales. This is an attempt to market feeder calves straight from the farm that are properly processed. The generally accepted term for the program is "preconditioning".
"Preconditioning in Cattle,"
Iowa State University Veterinarian: Vol. 41
, Article 6.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol41/iss1/6