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
In recent years the employment of caesarian section in the bovine has been increasingly popular and with good reason. Though spectacular, it is very quickly and easily done and has a very good prognosis if done on subjects which lend themselves to surgery. In dealing with a live fetus and a strong healthy dam, the incidence of successful operations should approach 90 to 95 percent. In the absence of contraindications, whenever one encounters a small pelvic outlet, hydrops amnii, an unusually large fetus or torsion of the uterus that cannot be corrected, caesarian section should be considered at once.
Sexton, J. W.
"Ventral Midline Caesarian Section in the Cow,"
Iowa State University Veterinarian: Vol. 16
, Article 3.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol16/iss2/3