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In autumn, the ewe’s general sexual desire is strong, and it is not only the high fetus rate but also the survival rate that the ewe’s general sexual desire is strong. The breeding season is from September to October, and the lambs can be born from February to March of the following year. The fattening can then be slaughtered. For those ewes with normal genital organs, who do not have estrus for a long time or miss estrus, artificial aspiration can be used to promote estrus. First, the hormone aphrodisiac method will be dipping progesterone sponge in the mouth of the cervix at the end of 10 to 14 days, after stopping the injection of pregnant goat serum gonadotropin 400 to 500 international units, after about 30 hours that is heat, estrus day and Each insemination the next day. Hormones are: progesterone 150 ~ 300mg, medroxyprogesterone 50 ~ 70mg, methadone 80 ~ 150mg, 18 methylenolone 30 ~ 40mg, fluroginone 20 ~ 40mg. Choose one of the above hormones, or add the above medicine into the feed every day, and feed it for 12 to 14 days. The dosage is 1/5 of the above-mentioned vaginal sponge method, and the intramuscular injection of maternal serum gonadotropin 400～ 750 international units. Second, artificial induction method to take health rams semen 1 to 2 ml, diluted by 3 to 4 times cold water, injected into the ewe nose spray with a syringe, usually every 4 to 6 hours to heat, 12 hours to reach estrus; Or put a ewes that are in heat and seeking mating into the adult ewes. Ewes can enter estrus after being induced by fake rams. Third, Chinese herbal medicine with mother powder 20 grams, 1 filling. Can also be used Patrinia 30 grams, 25 grams of three needles, Artemisia capillaris 20 grams, Jianshui amount, 1 filling service.