In veterinary clinics, we often encounter cases of dystocia such as narrow birth canal, malposition of fetal position, and fetal curvature or excessive birth. At this time, we must take necessary measures to ensure the delivery of the mother.

I. Midwifery technology for cow dystocia

1. Only see the forelegs outside the vulva but do not see the fetal head. Most of the fetal head is laterally bent on the left or right. At this time, the cow should stand in the front low and high, and use a rope to cover the forelegs outside the vulva. Put the sterile right hand into the birth canal to hold the wrist or elbow and push it back to the uterus. At the same time, reach into the front edge of the pelvis and touch the nostril or lower lip of the lateral bending fetal head, correct the fetal head to guide the birth canal, and pull the rope on the forelimb to pull out the fetus.

2. The cow is not exposed to fetal discharge for a long time and the birth canal must be checked. If the forelimbs in the birth canal touch the flexion of the fetal head and pelvic front, this condition is usually the flexion of the wrist against the edge of the pelvis, resulting in forearm can not enter the birth canal and dystocia, the fetus should be pushed back to the uterus at the same time quickly Hold the buckling metacarpal or hooves, lift it up, and pull it back toward the birth canal. If the two forelimbs are flexed, use the same method to rehabilitate the other limb, the head and the limbs at the same time and pull the fetus out.

Second, midwifery midwifery technology

1. The fetus is too big. When the foetus is oversized and the ewes are unable to produce, hold the lamb's two forelimbs with their hands, and with the ewe's nuisance, gently pull it down. After lambs have been produced, they should be wiped with iodine to prevent umbilical corditis.

2. The fetal position is not correct. Raise the ewe's hindquarters, return the exposed part of the fetus, put the hand into the birth canal, correct the position of the fetus, and send it back after it is pulled out. Repeat 3 to 4 times.

Third, pay attention to matters

1. The confinement must be accompanied by a rubber glove that has been sterilized (if there are no rubber gloves at the time, the two hands can be cut off and polished, and the hands can be soaked in the disinfecting solution for 3 to 5 minutes, painted with petrolatum or paraffin oil, etc.).

2. Before giving birth, first wash the labia minora, anus, and tail root of the female animal with soapy water or bacteriophage 4000 times liquid, and then use an alcohol swab to sterilize the labia.

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