1, in management, to treat pregnant sows like pregnant women: antenatal observation of pregnant sows every day to check the fetal movement of the embryo. Special attention was given to the intake of prenatal sows, which was a direct response to the sow’s health status. A few days before the onset of labor, there is a stoppage of food. Sows may have a cold or fever and need to be diagnosed and treated promptly. If it has nothing to do with the disease, it is very likely to be a sign of labor, and it needs to be screened. However, according to relevant data, if the food is stopped for 2 days before delivery, the farrowing process will be prolonged and the incidence of dystocia will increase. 2. Introspecting breeding records: Is it accurately recorded in the breeding situation? Have you ever returned? When confirming that the breeding records are accurate, measures can be taken to actively promote the sow's delivery. Chlorprostinol is recommended instead of oxytocin. Oxytocin should be used during sow farrowing and pay attention to the use of appropriate doses. 3. Adopt routine and active measures to adjust sows' delivery time in production. This measure is mainly used to deliver sows during the day or at the same time. The drug used was cloprostenol. Pregnancy for 112-113 days of pregnancy is treated at 10:00 a.m. daily, and sows are usually given 20-30 hours later, so that 85% of the sows are delivered during the daytime, which is convenient for the caregiver and prevents stillbirth. And the occurrence of dystocia. 4. There are many reasons for the mummification of stillbirths, such as lack of nutrition (prenatal sows prematurely stopped feeding), sows feeding on moldy feed, and sows being infected with Japanese encephalitis virus, parvovirus, pseudorabies, swine fever, etc. The quality of feed should be strictly controlled and the comprehensive prevention and treatment of the above diseases should be done well. 5. It is necessary to find out as soon as possible the delay of delivery, and it is also an active and effective way to reduce losses. If the mammary glands are found to be well developed in the early stage and the milking phenomenon occurs before the due date, special attention must be paid to taking necessary observations. Isoprene Gasket for prefilled syringes for disposable syringes 1ml, 3ml, 5ml, 10ml, 20ml, 50ml, 100, 150ml etc. syringe gasket,vaccine syringe gasket,Isoprene Gasket SUZHOU CRH PHARMACEUTICAL TECHNOLOGY CO.,LTD , https://www.crh-health.com