1, improve the sow pregnancy rate method. 1 After the mating is completed, when the female pig is not walking, he or she is slammed at the back of the sow to cool the sow and force the vagina and cervix to contract so that the semen does not flow backwards and enter the uterus quickly. 2 When the sow has not walked while mating, press the hand to press the dorsal side of the sow so that the sow stretches downward and flashes back 1 time to prevent the outflow of semen. 2, improve the sows' birth rate method. 1 From 3 days after weaning to during estrus, each sow was fed with 1,400 mg of vitamin B and 200 mg of vitamin E per day. After mating, the dose was halved. After 3 weeks of feeding, the average number of litters was 2-3. 2 On the 30th and 90th day of pregnancy, the sows were given intramuscular injections of vitamin B121 (2 ml of 5 ml) and the average number of litters was 2 per litter. 3, control the sow spring and autumn method of childbirth. The delivery time is arranged in spring and autumn, which is beneficial to the postpartum recovery of sows and the survival rate of piglets. The first litter can be arranged for breeding in November-December, and the litters will be born in March-April the following year; the second litter is to be mated in May-June and the litter is born in September-October. 4, control sows during the day birth method. Sows do not produce at night, and nursing is not easy. Sows can suffocate piglets. In cold winter season, piglets are frozen. According to the experiment, only the insemination of sows at 8 or 9 in the morning can make more than 90% of sows give birth during the day. 5, sows early pregnancy diagnosis. At 3-4 weeks of mating, the sow can be held upright, stroking the whole body to make it without fear, and then using the thumb and forefinger to pinch the 9th thoracic vertebra to the second lumbar spine, such as the back slightly arched. The person who is pregnant has not been conceived. This method has an accuracy rate of 95% or more. 6, sow forecasting method. The normal gestation period of sows is 108-120 days with an average of 114 days. There are two methods for deciding the sow's expected date of birth: 1 The date of breeding plus 3 months, 3 weeks and 3 days. If the sow mating date is April 20, the expected date of production is 4+3=7 (months) and 20+21 (3 weeks)+3. (days) = 44 days, August 14th. 2 breeding months +4, date -6, that is 4 (months) +4 = 8 (months), 20 (days) -6 = 14 (days). 7, pig artificial aphrodisiac method. 1 Body weight 75 kg - 100 kg of sow muscle injection with chorionic gonadotropin 1000 units or subcutaneous injection of human Ma Qing 5 ml, 4-6 days after the heat. 2 Epimedium, Angelica each 50 grams, Motherwort 500 grams, Chen Ai 250 grams Jianshui after oral administration, within 1 week of heat. 8, sow prolactin method. 1 Place the postpartum placenta clean with clean water, cut small pieces 4-5 cm wide and 2-3 cm wide, and cook over low heat for 1-2 hours. Stir the dressing into the gruel, from the second day after birth. Start by feeding two meals a day and feed it. The sows that have been suffering from short-acting milk have been fed with 30 grams of Mutong, 20 grams of Chinese angelica, 30 grams of decoction of yellow flowers and cooked tires. 2 kelp 250 grams, swelling and shredding, add lard 100 grams decoction, fed one day each morning and evening, even fed 2-3 days, milk secretion increased significantly. 9, sow breast inflammation simple method. 1 Yinhua, Forsythia, dandelion, terracotta, Anemarrhena, Phellodendron, rhubarb, licorice each 15 grams, into powdered porridge as a result of oral administration, 2-3 agents recovered. 2 Angelica, habitat, terracotta, silver flower, red peony, Prunella, licorice each 15 grams of decoction, the effect is very good. 10, piglets simple treatment. 1 each piglet with grass cream (pot bottom ash) 6 grams mix in gruel or corn soup orally, 10 hours after eating Jihe, more than 95% efficiency. 2 20 grams of agrimony, plantain, earthworm, Chen Ai, Haijinsha, garlic, ginger, and licorice each. The water is fed to the sow by Jianshui. It can be cured for 3 to 3 days. China Extract Powder For Use As Dietary Supplement Extract Powder, Extract Powder Manufacturer Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.kangnewpharmas.com