What are the signs before the ewe gives birth? What about dystocia? What if you don't eat after delivery?

With the arrival of the expected delivery date of ewes, there will be some obvious changes in some organs and shapes of ewes in the later stage of pregnancy. Ewes' delivery and lambing work plays an important role in maintaining the health of ewes, improving the survival rate of young lambs and promoting the healthy growth of lambs. What are the signs before the ewe gives birth? What about dystocia? What if you don't eat after delivery?

There are four main changes in the signs of delivery in ewes:

1. Breast changes

The breasts develop rapidly and the glands are abundant before delivery. The nipple is enlarged and thickened, and the whole breast is enlarged, red and shiny. Near delivery, a small amount of clear gelatinous liquid or a small amount of colostrum can be extruded from the nipple.

2. Vulvar changes

Approaching childbirth, the labia gradually softens, swells and enlarges, the folds on the labial skin unfold, and the skin becomes slightly red. Vaginal mucosa flushed, mucus changed from thick to thin and smooth, and frequent urination.

3. Pelvic changes

The pubic symphysis of the pelvis, the sacral joint and the ligaments on both sides of the pelvis are more active and soft and sunken on both sides of the caudal root. Hold the tail root with your hand and move up and down, feeling that the upward movement of the sacrum increases.

4. Behavior change

Ewes uneasy, loss of appetite, looking back on the abdomen, lying from time to time, constantly blaming and whining, the abdomen is obviously sunken, and some use their forelimbs to dig the ground.

Matters needing attention in delivery

When a normal ewe gives birth to a lamb, it is best to let it produce on its own. The main task of the midwifery staff is to monitor delivery and care for newborn lambs. In normal delivery, first cut the wool around the breast and the inside of the hind limbs of the parturient ewe, then wash the breast with warm water; squeeze out a few drops of colostrum, then wash the tail root, vulva and anus of the ewe, and disinfect it with 1% Laisuer.

In general, lambs are born faster than ewes at first birth, and lambs can be born smoothly after the amniotic membrane is broken for a few to 30 minutes. A normal lamb usually has two forelegs coming out first, and the head is attached to the two forelegs. With the hard work of the ewe, the lamb can be born naturally. When giving birth to twin lambs, the interval is about 10 to 20 minutes, and the interval is longer in some cases. When the ewe gives birth to the first lamb, there are still signs of hard work and labor pains, which is the sign of giving birth to twin lambs. At this time, the midwifery staff should carefully observe and examine them.

After the lamb is born, it is better for the umbilical cord to break naturally. If the umbilical cord is not broken, break it with your fingers 5 cm ~ 8 cm away from the abdomen, and then disinfect the broken end with 5% iodine. Do not cut the umbilical cord with scissors or razor blades, and do not ligate the umbilical cord. About 1 hour after the ewe gives birth, the placenta will be excreted naturally. The placenta should be removed in time to prevent it from being swallowed by the ewe. If the placenta of ewes is not excreted within 2 ~ 3 hours after delivery, measures should be taken in time.

The midwifery of dystocia and the treatment of dystocia ewes.

Narrow pelvis, too small vagina, too large fetus or weak ewe, weak uterine contraction or abnormal fetal position can cause dystocia. If the amniotic membrane is broken for 30 minutes, if the ewe is weak and the lamb is not yet born, it should be delivered immediately. Midwives should cut their fingernails short, polish, disinfect their arms, apply oil, and take corresponding treatment methods according to the situation of dystocia. If the fetal position is not correct, first send the exposed part of the fetus back to the vagina, raise the hindquarters of the ewe, and then enter the birth canal to correct the fetal position, and then pull the fetus out with the rhythm of the ewe; if the fetus is too large, pull the lamb's forelegs out and in repeatedly several times, then pull the forelegs with one hand, support the head with the other, and slowly pull down with the ewe. Do not try too hard, or do not pull hard according to the rhythm, so as not to pull the vagina.

After the birth of a fake dead lamb, if the lamb does not breathe, but develops normally, the heart still beats, which is called false death. The reason is that the lamb inhaled amniotic fluid, or gave birth for a long time, lack of oxygen in the uterus and so on. Treatment methods: one is to lift the two hind legs of the lamb, hang in the air and slap the back and chest from time to time; the other is to let the lamb lie flat and press both sides of the chest rhythmically with both hands. After these treatments, most of the lambs who died for a short time can recover.

Postpartum ewes should pay attention to keep warm, prevent moisture, avoid the wind, prevent colds and keep quiet and rest. The first few days after delivery should be given good quality, easy to digest feed, the amount should not be too much, after 3 days, the feed can be changed to normal.

Key points of lamb management and nursing

After the lamb is born, wipe out the mucus in the mouth, nose and ears of the lamb so as not to swallow amniotic fluid and cause asphyxia or foreign body pneumonia. The mucus on the lamb should be licked dry while the midwife is scrubbing it, which can not only promote the blood circulation of the newborn lamb, but also help the ewe recognize the lamb. Within 2 to 4 hours of birth, the lamb should eat colostrum as soon as possible, because colostrum contains an antibody and contains more minerals.

Lambs should eat breast milk in time, first, it can promote the elimination of meconium; second, lamb antibodies can be supplied to enhance the resistance to natural toxic microorganisms and reduce the incidence of disease. In addition, the weaker lambs should be artificially fed in time. At the same time, advance immunization was carried out and 1500 units of tetanus antitoxin were injected into newborn lambs to prevent tetanus in newborn lambs.

The ability of cold-proof lambs to resist low temperature is very weak, because the temperature is low in early spring, it is very important to do a good job of cold protection and heat preservation. The sheep barn should be kept clean, dry and warm. Ewes and lambs should be kept in a single column. The wind and warm weather allow ewes and lambs to bask in the sun.

Supplementary feeding in the early stage of lactation, the nutrition of lambs mainly depends on breast milk, so it is necessary to strengthen supplementary feeding for ewes. The amount of supplementary feeding can be determined according to the actual situation, generally 0.5 kg of concentrate, 1 kg of silage and 1.5 kg of hay can be supplemented every day. For lactation ewes, the following methods can be used to promote milk to ensure adequate milk. ① kelp 25g, lard 100g, put in the pot to cook soup, so that ewes one-time feeding, generally about half a day after feeding milk production significantly increased. After that, they were fed once every 3 ~ 4 days, 3 ~ 4 times in a row, and enough green succulent feed was supplied. ② soybeans 250g, soak in water, then grind and cook, cool and let ewes drink, twice a day for 3 ~ 4 days. ③ 250g honey and two egg whites were mixed and fed to the ewes once a day for 2 ~ 3 days.

Half a month after the birth of the feeding lamb, it is necessary to train it to eat grass and feed, which can exercise its digestive ability and lay the foundation for complete weaning and growth in the future. At first, you can feed some high-quality hay and cooked carrots, vegetable leaves, etc., and then feed crushed corn, bean cakes, and some chopped succulent feed to enhance palatability.

What if the ewe doesn't eat after delivery?

The reason why sheep don't eat after giving birth

First, the digestive function of sheep is weakened after giving birth, and too much concentrate is fed (especially beans), causing indigestion or constipation, leading to anorexia or loss of food.

Second, the sheep are extremely tired and physically weak after giving birth, causing digestive disorders and loss of appetite.

Third, the sudden decrease of abdominal pressure after delivery affects the normal operation of digestive function and causes temporary anorexia.

Fourth, postpartum due to birth canal infection, inflammation, elevated body temperature, causing abdominal pain and anorexia in sheep.

Fifth, do not eat in the later period of lactation, mostly because the feed is too single, especially the lack of protein feed such as beans, calcium and other mineral elements and green feed rich in vitamins, resulting in malnutrition of sheep and, in serious cases, lameness or paralysis.

The treatment of sheep not eating after giving birth

1. Fry 250 grams of postpartum Kang twice, add 150 ml of yellow rice wine to the mixture, and give the sheep a dose of waiting temperature; fry the dregs twice at intervals of 8 hours and 12 hours, and add appropriate amount of yellow rice wine to wait for warm irrigation.

2. 250g brown sugar and 500g wheat bran use 2500 ml of boiled water and wait for the water temperature to be about 40 degrees for ewes to drink.

3. Injection of Herba Houttuyniae injection