Spring is the season when ewes are concentrated in lambs, but due to factors such as early spring temperatures, the survival rate of lambs is difficult to guarantee. Therefore, the majority of sheep-raising households do a good job in the management of ewes' birth and lambing, which plays an important role in maintaining the health of ewes, raising the survival rate of young lambs, and promoting the healthy growth of lambs.
Ewe's childbirth
Childbirth indications The ewes present four changes near the birth. First, the changes in the breast: You can squeeze a small amount of clear gum liquid from the nipple, or a small amount of colostrum, thickening of the nipple. The second is the change in the pudendal: the labia gradually becomes softer, swollen, and enlarged, and the wrinkled walls on the labia are unfolded and the skin turns red. Vaginal mucous membranes are flushing, and mucus changes from thick to thin and smooth, with frequent deep rows. The third is the pelvic changes: the pelvic pubic symphysis, joints and ligaments on both sides of the pelvis increased mobility, axillary depression. Holding the tail roots in your hands for up and down activities, you feel that the sacrum has moved upward. The fourth is the change of behavior: the ewes' spirit is disturbed, their appetite is diminished, their abdomen is up and down, and they continue to vomit and scream. The abrupt subsidence of the abdomen is a typical symptom of labor and should be sent to the delivery room immediately.
Normal production
When ewes are lambs, it is best to let them produce themselves. The main task of the confinement workers is to monitor childbirth and care for the lambs that are born. During the normal confinement, first cut the flesh around the udder of the laboring ewes and on the inside of the hindlimbs, then wash the breasts with lukewarm water; extrude a few drops of colostrum, then wash the tail, genitals, and anus of the ewes, using 1% Su children disinfection. Under normal circumstances, lambs produce faster than the first born ewes, and the amniotic membrane ruptures for several minutes to 30 minutes. The normal lamb is usually the first two forelimbs first, the head attached to the two forelimbs above, with the hen's blame, the lamb can produce naturally. When producing double lambs, they are separated by about 10 minutes to 20 minutes, and the individual intervals are longer. When the ewes produce the first lamb, they still have responsibilities and show pain. They are signs of twin lambs. At this time, the production personnel must carefully observe and carefully inspect. After the lamb is born, the umbilical cord breaks naturally. If the umbilical cord is not broken, use a finger 5 cm to 8 cm from the abdomen to twist it off, then apply 5% iodine to the broken end for disinfection. Never cut the umbilical cord with scissors or a blade, or tie the umbilical cord. About 1 hour after delivery of the ewes, the placenta will be naturally discharged, and the placenta should be removed in time to prevent the ewes from swallowing and developing bad habits. If fetal munitions are not discharged within 2 to 3 hours after delivery, measures should be taken promptly.
Dystocia midwifery and treatment
Dystocia midwifery: Embryos pelvic stenosis, vagina is too small, the fetus is too large or the ewes weak, uterine contractions are weak or fetal position will cause dystocia. The amniotic membrane breaks the water for 30 minutes. If the ewes are not responsible for the weakness and the lamb is not yet produced, the midwife should immediately assist the baby. Midwifery personnel should cut and polish the fingernails, disinfect the arms, and apply lubricants. Take corresponding treatment methods according to the dystocia situation. If the fetal position is not correct, first return the part of the fetus to the vagina, lift the hindquarters of the ewes, correct the fetal position into the birth canal, and then follow the rhythm of the ewes to pull out the fetus; if the fetus is too large, you can The two forelimbs of the lamb were pulled out and fed in several times, and then the forelegs were pulled in one hand and the head was held. As the ewes replied, they slowly pulled downwards. Do not use too much force, or do not insist on pulling rhythm, so as not to pull the vagina.
Treatment of suspended dead lambs
After lambs have been produced, if they do not breathe but develop normally, the heart still beats and is called suspended animation. The reason is that lambs inhale amniotic fluid, or have a longer delivery time, lack of oxygen in the uterus. Treatment methods: First, lift the two hind legs of the lamb, and then pat the back and chest from time to time. Second, let the lamb lie flat and use both hands to push the sides of the chest in a rhythmic manner. After these treatments, the temporarily suspended lambs are likely to recover.
Postpartum ewes should pay attention to keep warm, moisture, shelter, prevent colds, and keep quiet rest. Within the first few days after delivery, feed should be given good quality and easy to digest, and the amount should not be too much. After 3 days, the feed can be converted to normal.
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