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
During a 2 year period, 2 horses from the same farm were admitted to the Iowa State University Large Animal Hospital exhibiting signs of mild to moderate abdominal pain. Upon surgical exploration both horses were found to have a fibrous foreign body obstruction of the small colon. Intestinal resection and anastomosis successfully relieved the obstruction in both cases. It was determined that both obstructions were composed of synthetic fencing material.
Anderson, Steven J. and Reid, Byron B.
"Fibrous Foreign Body Obstruction of the Small Colon in Young Horses,"
Iowa State University Veterinarian: Vol. 42
, Article 4.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol42/iss3/4