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
On April 3, 1951, a bay mare was presented at the Stange Memorial Clinic for treatment of severe diarrhea. The patient was extremely emaciated and dehydrated; the anal sphincter apparently had little or no tonus. A fecal examination showed the presence of numerous Strongylidae ova. A blood analysis showed 61.5 percent hemoglobin and as the extreme dehydration had caused a hemoconcentration the anemia was actually worse than this would indicate.
Terry, J. R.
"A Case of Extreme Parasitism,"
Iowa State University Veterinarian: Vol. 14
, Article 8.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol14/iss1/8