1. Strengthen feeding management. The diet should be balanced and the feed should be diversified. The diet should be adjusted in time according to the changes in physiological traits. In the reasonable supply of energy and protein feed, adequate attention shall be paid to the supply of mineral feed calcium, phosphorus, manganese, zinc, iron and vitamins A, D, and E; no mildew and degenerative feeds are to be fed; no bombing, hunting, and rushing of cattle; In the treatment of pregnant cows, medication should be used with care, and laxatives and aphrodisiac drugs should not be used.
2. The occurrence of clinical abortion has occurred and the cause should be ascertained. For each aborted cattle should be fed alone, the abortion fetus, fetal membranes should be carefully examined to observe whether the fetus deformity, placental edema, necrosis. In order to confirm the diagnosis, microbiological examination of blood, uterine secretions, fetal stomach and its contents, liver and spleen of the cows can be taken; whether the cows have systemic diseases and understand the feeding and management situation. Abortion fetuses, birth covers, and grasses should be buried or incinerated.
3. Vaccine injection. In order to prevent abortions caused by infectious diseases, it is necessary to: Inoculate yaks from 5 months old to 6 months old with pig No. 2 or No. 5 bacilli. Adult cows do 1 to 2 tests of brucellosis tube agglutination every year. Positive cows should be sequestered. As the herd expands, cows are frequently exposed. New cow infectious diseases such as infectious bovine rhinotracheitis occur. Wagonia virus diarrhea has also gradually spread. Therefore, vaccination should be considered.
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