Sow dystocia, often take the injection of oxytocin, correction of fetal, unarmed dig pig for midwifery. But the individual because the fetus is too large or too narrow and the sow pelvis, fetal pig, especially the head dystocia by above method cannot delivery or removed.

In this case, the correct use of midwifery rope can easily solve the problem, according to a large number of production practice, summed up the convenient use of midwifery rope. At first midwifery rope should be soaked in disinfectant  around 10min, preoperative first sow the vulva and drive after cleaning, poured into the amount of liquid soap in the sow vaginal lubrication .