Two calves were found to have omphaloceles at the time of observed una
ssisted parturition. Both calves were admitted to the veterinary hospi
tal within hours of birth. One calf, with the amnion covering of the h
erniated intestine and liver intact, was successfully treated by herni
orrhaphy. The second calf had ruptured the amnion covering the hernia
by the time of admission. This calf was euthanatized during laparotomy
because of severe gross contamination of the abdominal cavity. An omp
halocele is a congenital defect in the body wall in which eviscerated
abdominal organs are covered by amnion rather than skin.