Fetal Loss in a Group of Danish L x Y Sows: A Preliminary Study

Contents: The magnitude of fetal loss was studied in 13 Danish Landrace & Yorkshire (L&Y) crosses. The ovulation rate and number of fetuses were recorded following ovariohysterectomy on days 46–112 of pregnancy. On the basis of these figures the mean ovulation rate, litter size, fetal loss and transcornual migration were found to be 15.5., 12.2., 21.4% and 13.7%, respectively. It is concluded that the extent of fetal loss is smaller than expected from the literature .