(1) Diagnostic guidelines After sows are born, check whether the umbilical cords on the tires are consistent with the piglets they produce. The placenta of the sow is not less than part of the placenta, which is generally not easy to find. If the tire coat stays in the uterus for more than 3 hours, it will cause endometritis due to decomposition and produce toxins, which will cause the sow to be restless, irritated, reduced or eliminated appetite, like to drink water, but also cause systemic symptoms, sometimes from the vulva Reddish brown with smelly liquid, mixed with decomposed fetal clothing fragments.
(2) Prevention and control programs should scientifically and rationally feed pregnant sows. Allowing the sow to exercise properly favors the uterus contraction. In the absence of discharge of the placenta for 2 hours after delivery, the posterior pituitrin or oxytocin 100,000 to 200,000 international units should be injected intramuscularly, and repeated injections should be repeated every hour. Intrauterine injection of broad-spectrum antibiotics can prevent the decomposition of the retained fetal clothing. Take anti-infective systemic therapy and symptomatic therapy to improve the efficacy.
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