1. Causes of insufficient milk: The common causes of insufficient or no milk for sows after delivery are: ① improper feeding and management of sows during pregnancy, and poor mammary gland development; During pregnancy, the feed should follow the model of "high, low and high" to ensure a reasonable control of the feeding amount, and at the same time, the feed should be nutritious and complete. If the sow is overfeeded in the second trimester of pregnancy (30-85 days), there will be high concentration of free fatty acids and low concentration of branched-chain amino acids in the blood of the obese sow, which will act on the appetite center of the brain and reduce the feed intake during lactation, and eventually lead to the decrease of milk yield. Secondly, neglecting the feeding of the sow in the third trimester of pregnancy will often lead to emaciation, poor mammary gland development and shriveled breasts, which will limit the lactation capacity and lead to insufficient postpartum milk. ② Sows are old and weak, and their physiological functions are decreased; ③ Early mating age of sows and mammary gland dysplasia; (4) Purebred sows will have unexplained lack of milk or milk; ⑤ Sows are obese, with too much fat deposited in their breasts and endocrine disorders; ⑥ The sow's resistance is poor and the confinement is unclean, causing mastitis. Second, when the sow's milk is not enough, the following measures can be taken: First, find a surrogate sow; Second, artificial feeding water (milk or milk powder); The third is to increase the milk yield of sows by using the following prescriptions: 1. Feed Shengruling (for human use), 2-5 times as much as human use, for 2-3 times; 2. Traditional Chinese Medicine: ① 60g of Angelica sinensis, 30g of Akebia Akebia, 500g of fresh willow bark, adding water 1 .5kg, decocting with slow fire to1kg, and mixing the juice with gruel to feed pigs, one dose a day. Decoct in the morning and evening 1 time, with 2-3 doses in succession. ② Take 35g of Semen Vaccariae, 35g of medulla Tetrapanacis, and 250g of fried shrimps in water (mashed); ③ 30g of Akebia Akebia, 60g of Angelica sinensis and 500g of fresh willow bark are boiled in water and mixed with millet porridge to feed; (4) 36 grams of Semen Vaccariae, 30 grams of Trichosanthes, 24 grams of Radix Rhapontici, 2 pairs of Bombyx Batryticatus 18 grams and pig's trotters were boiled in water and fed in the feed twice; ⑤ Deficiency of qi and blood, use 25g of Radix Astragali, 20g of Radix Codonopsis, 20g of Radix Angelicae Sinensis, 20g of Rhizoma Chuanxiong, and cowherb seed15g pig's trotters, and cook them together. ⑥ Semen Vaccariae 25g, Squama Manis, Tetramedulla Tetrapanacis and Atractylodis Macrocephalae each10g, Radix Paeoniae Alba, Radix Angelicae Sinensis, Radix Astragali and Radix Codonopsis each15g, ground into powder, and mixed with feed to feed sows. ⑦ Trichosanthes kirilowii lactagogue method. Take 30 grams of Trichosanthes, 25 grams of Rhaponticum, 25 grams of Bombyx Batryticatus and two pairs of pig's trotters, boil them in water and feed them in feed twice. 3. Take vitamin E 100-200mg orally, oxytocin 20 international units mixed with 10% glucose 500ml intravenously, and massage the pig breasts with both hands for more than 100 times10min after taking the medicine. 4. For milk deficiency caused by endocrine, 20 units of pituitrin can be injected, once a day/kloc-0, four times in a row; Fourth, strengthen the feeding of lactating sows: at the same time, manually massage the breasts 3~5 times a day; For example, sufficient bean cake, wheat bran, fish meal, etc., as well as qualified premix. At the same time, the feed intake of lactating sows is maximized to increase lactation. For example: 1, feed the placenta: cook and chop the placenta after delivery, divide it into 3-5 times, and feed the soup to the sow. 2. 200g of brown sugar, 200ml of white wine and 6 eggs. First, break the eggs and pour them into a bowl, add brown sugar and stir, then pour the white wine, add a small amount of concentrated feed and mix well, and feed them at a time. 3. Cook and chop the mutton and feed it to the sow together with the soup, and give it milk in 1-2 days. 4. Earthworms lactagogue method: take 300-400g of fresh red earthworms, take out and wash their contents, mash them and mix them into the feed for once. 5. Take 250-300g of kelp and 40-100g of cooked lard. 7 5 eggs, 500 grams of peanuts, boiled in water, fed to pigs twice, usually on the third day after feeding. 8 500 grams of leek, 800 grams of sweet distiller's grains, and 400 grams of small fish are mashed and mixed with boiling water, so that sows can feed themselves once a day, and the milk is fed for 2 to 3 days. 9 300 grams of brown sugar, 300 grams of yellow wine and 2 eggs are mixed into the feed and fed to pigs for 3 ~ 4 days. 10 kelp lactagogue method: 500g kelp is expanded and chopped, and then animal oil100g is added to cook soup and fed to pigs twice a day for 2-3 days. 1 1 large intestine, sheep bones, sheep water, etc. are cooked, and the pigs are fed except the bones. 12 a pair of fresh pig intestines, add salt, cook in water, chop up and mix with soup to feed the pigs. 13 2000 grams of soybean milk and 200 grams of meat oil, cooked and taken once a day for 2 days. 14 Take 3 ml of milk from lactating sows or other healthy sows and inject it subcutaneously, which also has lactagogue effect. 15. lactagogue method for shrimp skin. Take 500 grams of shrimp skin, add appropriate amount of corn flour to cook porridge, and feed it to sows twice. Or 500 grams of fresh shrimp, and 200 grams of brown sugar, once, once a day, for 2-3 days. 16, 500 grams of rice, 500 grams of fresh earthworm (mashed), a proper amount of salt, boiled into porridge, 30 grams of ginger (mashed) and 0/20 grams of rice wine, once a day for 3 days. 17 decoct 250g of pig's suet into liquid, add 50g of brown sugar, dissolve and divide into 3 portions, feed 1 portion every morning for 3 days; 18 fish soup lactagogue method: use 500 ~1000g of crucian carp, cook the soup (without salt), stab and feed the sow for 3 days. Or fresh crucian carp1000g; Mash the fish head, and add appropriate amount of ginger, garlic and Tetrapanacis Tetrapanacis10g; Decoct the mixture in water and feed it to pigs, one dose a day for 2 ~ 3 days. Dietotherapy is a summary of local experiences for reference.