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 Oct.. 11, 1940, a six year old Brown Swiss cow was presented at the Stange Memorial Clinic with a history of dystocia. The cervix had been insufficiently dilated when the fetus had been removed several hours previously by traction sufficient to overcome the resistance of the cervix. Examination of the genital tract revealed severe lacerations of the dorsal wall of the uterus, cervix, and vagina. A continuous mattress silk suture was used in bringing the wound edges in apposition. The first suture of the series was closed with a slip knot and the remaining sutures were spaced about 1112 inches apart. An unfavorable prognosis was given.
Kinney, Norman K.
"Parturition Lacerations in a Cow,"
Iowa State University Veterinarian: Vol. 3
, Article 15.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol3/iss1/15