Fecal estrone sulfate profile of a sow showing abnormal pregnancy with fetal mummification

Fecal and plasma E1S of a sow with mummified fetuses, was compared with nor mal delivery cases. Fecal and plasma fluctuation patterns in E1S were simil ar. In the sow with fetal mummification both fecal and plasma E1S concentra tion rapidly decreased after day 80-90 compared to normal farrowing sows. T his coincided with the estimated time of fetal death.