Actively prevent and treat infertility in cattle, improve their reproductive capacity, classify them according to the type of infertility in cattle, and adopt comprehensive prevention and control measures. Attention should be paid to the selection and elimination of congenital and physiological infertility. Older cows with reduced reproductive capacity should be promptly eliminated and updated after undergoing B-ultrasound examination. For cattle infected with infectious diseases, strict implementation of epidemic prevention and quarantine regulations should be carried out, and timely treatment should be carried out according to regulations. For difficult to conceive or aborted cattle suspected to be caused by infectious diseases, the cause should be identified as soon as possible and corresponding measures should be taken to reduce the spread of infectious diseases. Cattle should undergo ultrasound examination of their reproductive system. For non communicable diseases such as uterine or ovarian inflammation, comprehensive prevention and treatment measures should be taken based on the cause of the disease, including management and hormone therapy.

Adopting modern breeding techniques to improve the reproductive rate of dairy cows. Including technologies such as synchronous estrus, superovulation, embryo transfer, embryo segmentation, in vitro fertilization, sex control techniques, and early pregnancy diagnosis using bovine ultrasound.

Keep records of breeding management inspections for dairy cows, keep records of estrus mating, and record the results of B-ultrasound examinations for imported cattle; Complete record of the time of placental discharge in postpartum cows; Record the color and quantity of lochia discharge; Is there a record of difficult childbirth; Record the time of the first estrus after childbirth. Taking effective measures in a timely manner based on records and actual observations to improve the conception rate of cows.

Strict artificial insemination techniques are used, including high-quality frozen semen, rectal grasping, or imported cattle monitored by ultrasound. A certain amount of semen is accurately and timely (0-6h after estrus) transferred to the appropriate part of the uterus of the estrus cow (5-8cm deep in the cervix on the ovulation side) to avoid damage to the reproductive tract. Two rounds of insemination are performed, with a second infusion every 8-12 hours.