Treatment of polyhydramnios of amniotic fluid

When there is a large amount of fluid in the fetal membranes, it is called excessive fetal fluid, which is mainly characterized by excessive urine or amniotic fluid, or both may occur at the same time. The disease is common in sheep and goats. Fetal water has no great change in quality, and it may be thinner than normal fetal water.

The amount of amniotic fluid of sheep is generally small, the maximum amount is about 450ml, but when there is too much amniotic fluid, it can reach about 700ml.

1. Etiology

1. Because of torsion of the umbilical cord or some parts of the membranes.

two。 The fetal or maternal kidney is inflamed, the heart is weak, and the liver and lungs suffer from certain diseases.

3. Some cases of hydroamniotic fluid are obviously caused by the disturbance of the function of the amniotic epithelium, which can secrete amniotic fluid.

4. Polyhydramnios is easy to occur when pregnant with twin lambs or lamb deformities.

Second, symptoms

Most cases occur in the second half of pregnancy and the disease develops slowly. At first, the whole body shows no symptoms, the appetite is normal, but the abdomen is gradually dilated. When the course of the disease is serious, the sheep who are three and a half months pregnant show that their abdomen is enlarged, their back is extremely sunken, and their nests are lifted by fetal water. On the other hand, when the pregnancy is normal, the nest is obvious.

The condition of the whole body gradually deteriorated with the progress of the disease, the appetite decreased significantly, and the sick sheep were extremely thin and dishevelled. The eyes are lethargic and gloomy, the breathing is difficult, and the pulse is fast and weak, sometimes reaching 100 to 120 times.

It is difficult for sick sheep to walk and like to lie down, but it is not easy to make them stand.

When examining the vagina, it was found that the cervix was deeply trapped in the abdominal cavity.

When the course of the disease is serious, uterine rupture or abdominal muscle rupture may occur, premature delivery may also occur, and the fetus does not have the ability to live.

When the course of the disease is mild, the pregnancy is normal, but the contraction is weak or not as usual during delivery. In this case, the fetus cannot be delivered without midwifery. If you can't stand up by yourself two or more weeks before delivery, you often die of cachexia or septicemia.

III. Diagnosis

Because from the external inspection, it is easy to see that there is too much fetal water, so the diagnosis is not difficult, but attention must be paid to the difference between hydrops in the abdominal cavity and multiple fetuses. It is easy to make differential diagnosis when the fetal membrane is ruptured, because the urine is thin and light brown, and the amniotic fluid is serous, transparent, or turbid white.

IV. Treatment

1. When the course of the disease is light, small and nutritious feed can be given to limit drinking water and salt. Do regular exercise every day and wait for normal delivery. Under such feeding management, normal pregnancy can be maintained.

two。 Uterine puncture through the abdominal wall to drain the fluid can sometimes be effective, but it often leads to miscarriage.

3. You can try a large amount of chlorination (3-5g / day) or dihydrogram diuretic (5 tablets 3 times a day) to increase water excretion.

4. When the course of the disease is serious, especially when it has symptoms that endanger the life of ewes, induced abortion should be carried out as soon as possible.