Prepare for the delivery of production: Calculate the expected date of delivery based on 114 days of pregnancy, carefully observe the signs of labor, clean and disinfect the dry delivery room thoroughly, pave clean mats, prepare all the necessary items, and have good functions. Delivery and Midwifery: When the sow is giving birth, she must be quiet. Sows' delivery can generally be divided into four stages, namely the preparation stage, the fetal discharge stage, the discharge of the placenta stage, and the uterus restoration stage. The specific operation is as follows: First, disinfection: Wipe the sow around the genital area, abdomen and breasts with a wet towel; The second is the fetal output: after the fetus output, support the fetus with his left hand, the right hand will gently pull out the umbilical cord attached to the placenta, and then quickly remove the mucus from the piglet nostrils and mouth to prevent choking. Then follow the direction of the piglet with a rag, wipe the entire body of mucus from front to back, from top to bottom, the faster the better, produce a head, wipe a head; The third is the broken umbilical: wipe the umbilical immediately after the mouth and nose and body mucus, wipe the umbilical, first with the left thumb and index finger at 5cm from the base of the piglet umbilicus pinch tightly fixed, quickly with the right hand thumb and index finger to the umbilical cord The blood is repeatedly squeezed in the direction of the abdomen of the piglet, until the umbilical cord is squeezed and appears to be bloodless. At this time, the umbilical cord is cut off from the left finger and the fracture is disinfected with 5% iodine to prevent infection. Fourth, broken teeth. In order to prevent piglets from sucking their nipples when sucking their milk and affecting breastfeeding, the sharp parts of the eight small sharp teeth are cut flat after the piglets are born, that is, broken teeth; The fifth is broken tail. In order to reduce the contamination of pigtails by faeces and reduce the incidence of epidemic infections, at the same time, in order to reduce the chance of artificial assistance and improve the breeding effect when breeding pigs, after the birth of the piglets, the tail is broken at a distance of 3 cm from the tail and after the tail is broken. Immediately wipe the wound with iodine swab to avoid inflammation. The FSH pen injector is a medical device used for administering
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