Sows during the day can ensure that the husbandry and management personnel can prepare for the delivery of the product, solve problems such as difficult production of the sow in time, improve the survival rate of the newborn piglet, and facilitate the advance immunization of the swine fever. The author has repeatedly tested that the use of cloprostenol can cause more than 90% of sows to give birth during the day. The correct use of cloprostenol is: from 6 am to 8 am in the first 2 days or the first 3 days of the sow due date, use 10 ml of normal saline for injection or sterile water for injection, regardless of whether the drug is a solution injection or frozen. The desiccants need to be diluted because the loss of the drug during the injection can be avoided as much as possible after the preparation is diluted. The diluted 0.2 mg/dose of cloprostenol is used, and then the sow is intramuscularly injected. The sow is on the second day. You can give birth. In practice, special attention should be paid to the fact that the expected date of the sow must be accurate. The expected date of birth is 114 days from the day of sow mating. In addition, cloprostenol is a synthetic prostaglandin analogue that is easily absorbed by the skin and should be handled with care. If accidentally splashed on the skin, it should be immediately rinsed off with clean water. Women of childbearing age and asthmatic patients should be more cautious when handling. cosmetic Xi'an complex bio-tech CO.,LTD. , https://www.complexpowder.com