Causes of abortion, stillbirth, and perinatal death in horses: 3,527 cases (1986-1991)

摘要: Pathology case records of 3,514 aborted fetuses, stillborn foals, or foals that died < 24 hours after birth and 13 placentas from mares whose were weak unthrifty at reviewed to determine the cause abortion, death, illness. Fetoplacental infection caused by bacteria (n = 628), equine herpesvirus (143), fungi (61), placentitis (351), in which an etiologic agent could not be defined, was most common diagnosis. Complications birth, including neonatal asphyxia, dystocia, trauma, second mortality diagnosed 19% cases (679). Other diagnoses placental edema premature separation placenta (249), development twins (221), contracted foal syndrome (188), other congenital anomalies (160), umbilical cord abnormalities (121). Less conditions villous atrophy body pregnancy (81), fetal diarrhea (34), neoplasms miscellaneous (26). A diagnosis established 16% seen (585). The study revealed leptospirosis (78) important bacterial abortion mares, a nocardioform actinomycete (45) chronic placentitis.