Spring ewes are prone to miscarriage. The following comprehensive prevention and treatment measures are proposed for the causes of miscarriage. It is hoped that this will help the majority of farmers.
First, the cause of abortion
1, improper management. Such as the sudden change of climate, drinking ice dregs, feeding mildew, and being caught in and out of the circle can cause pregnancy abortion.
2, lack of nutrition. In the winter and spring withered grasses, there is a single type of feed and nutritional deficiencies. At this time, when ewes are in the gestation period, the demand for nutrients is increasing, the body's body is insufficient to make ends meet, and the fetus is stunted, resulting in miscarriage.
3, chlamydia disease. When the ewes are infected with chlamydial disease during pregnancy, chlamydia grows and reproduces in the placenta coat, especially the hairy leaves, causing inflammation in the affected area, leading to early fetal output. After being infected with the chlamydial disease, the ram can be transmitted to the ewes through the opportunity of breeding. Most of the ewe's ewes aborted about 1 month before giving birth. Before the miscarriage, only abnormal expressions, abdominal pain, and stillbirths were discharged during an abortion. The effective prevention method was to inject the vaccine into the sheep each year.
4, brucellosis. The disease often occurs when the ewes are 3 to 4 months pregnant and the abortion rate is high when the sheep first occurs. Regular vaccination of sheep can prevent this disease.
Second, comprehensive prevention and control measures
1. Strengthen the feeding and management, do a good feeding in the winter and spring seasons, and feed the ewes more carrots and grass meal, can increase their resistance to disease.
2, promote the plastic greenhouse shed sheep, ban on feeding mildew forage, feed. Try to add de-enzyme to the feed.
3, try to use artificial insemination technology to ewe breeding, to prevent infection.
4. The pens should be cleaned, the excrement must be cleaned timely, the fermentation process should be centralized, and the disinfection should be carried out frequently. The mother should be given an abortion vaccine in advance, the aborted sheep should be immediately isolated, and the field, pasture, and trough appliances should be completely disinfected.
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