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
Curtailing suckling pig losses is very often the key to profit or loss on a year's swine husbandry. This is easily seen when one considers that a still-born pig represents a loss of $5.30, and that each loss near weaning means up to 240 pounds of lost feed and up to 50 man hours of labor wasted.
Quinn, A. H.
"Disease Problems of Suckling Pigs, Their Handling and Treatment,"
Iowa State University Veterinarian: Vol. 15
, Article 6.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol15/iss1/6