What causes metritis?
During the first week postpartum, bacterial contamination occurs in up to 90 percent of cows. Cows are less prepared to ward off metritis when they encounter twins, difficult calving or improper calving assistance. Excessive stretching of the uterus and inadequate nutrition interfere with uterine involution. Rapid involution is key to naturally expelling fluid, placental membranes and bacteria from the reproductive tract.
