39 results about "Mammary gland development" patented technology

The invention belongs to the field of feeds, and particularly relates to a six percent-premix for lactating sows and a wheat-type daily ration prepared from the six percent-premix. The premix comprises multivitamins, composite trace elements, DL-methionine, lysine, threonine, L-arginine, valine, composite electrolyte, compound enzyme, 5000 IU of phytase, functional additives, feed attractants, calcium hydrogen phosphate, stone powder, salt, choline, antioxidants and defatted rice bran. On the whole, the daily ration for the lactating sows is capable of protecting the development of mammary glands of the sows, ensuring plentiful milk with high quality in the lactation period of the sows and increasing the survival rate of suckling piglets, and enables the piglets to have higher weaning weight.

the invention discloses a sow pregnancy early stage compound feed for promoting sow welfare and improving sow reproductive performance, and a processing method thereof. The compound feed is composed of the following components in percentage by mass: 32-40% of corn, 27-35% of wheat, 10-15% of soybean meal, 8-14% of dietary fiber, 0.1-0.2% of microecological preparation, 0.025-0.03% of carnitine, 0.2-0.3% of compound trace elements, 0.03-0.04% of compound vitamins, 0.05-0.06% of choline, 0.02-0.04% of phytase, 0.04-0.06% of anti-mildew agent, 0.15-0.2% of mycotoxin adsorbent, 0.8-1.2% of calcium monohydrogen phosphate, 0.1-0.2% of salt, 1-1.2% of stone powder and 0.9-1.0% of zeolite powder. The processing method includes the following steps: carrying out cleaning sorting, screening and crushing of the bulky raw materials of corn and wheat, adding the various raw materials into a mixer according to the formula amount and carrying out uniform mixing, and performing steam conditioning of texture, pelletizing, screening, cooling and packaging to get the finished product. The sow pregnancy early stage compound feed meets nutritional requirements of a sow in the pregnancy early stage, can promote the fetal development and the mammary gland development of sows, and can improve the maternal and fetal immunity.

The invention relates to a complete feed for promoting lactation and development of the mammary gland of a sow. The complete feed comprises the following raw material components: corns, soybean meal, egg powder, wheat bran, fish meal, flaxseed flour, collagen powder, red sugar powder, stone powder, calcium hydrogen phosphate, sodium bicarbonate, sodium chloride, L-threonine, L-valine, L-methionine, L-tryptophan, lysine hydrochloride, choline chloride, composite vitamin and composite minerals. The formula of the feed provided by the invention is reasonable and novel; the feed adapts to the physiological characteristics of a lactating sow; after the feed is applied, the complete feed can promote lactation and development of the mammary gland of the sow, is low in cost and can meet the practical production of a pig farm.

The invention relates to the technical field of complete feed for breeding sows, in particular to six-stage nutritional complete feed for the breeding sows and a feeding method. According to the characteristics of parturition period of the breeding sows, the parturition period of the breeding sows is divided into six stages through combination of physiological characteristics and nutritional requirements of the breeding sows in theparturition period, the breeding sows are fed with different kinds of nutritional feed according to the six stages, the feeding process is studied, so that the nutrients in the six stages have cooperative interaction and are supplementary, mammary gland development of the breeding sows is promoted, milk yield is increased, appetite of the breeding sows is improved, food-intake is improved, oestrus times and ovulation times in the non-pregnant period are increased, dystocia rate of the breeding sows is reduced, the whole parturition of the breeding sows is shortened, and quick postpartum recovery of body condition of the breeding sows is facilitated.

The invention discloses a composite premix used for sow, every kilogram of premix contains 260-380 IU of vitamin E, 180-300 IU of vitamin A, 120-180 IU of vitamin D3, 150-180 IU of vitamin K, 150-400mg of folic acid, 600-700mg of selenium yeast, 1-6g of glycine zinc, 3-8g of trifolium pretense extract, 100-250g of calcium hydrogen phosphate, 150-600g of calcium carbonate and the balance of zeolite powder. The composite premix used for sow is capable of raising the immunization function of the sow, promoting the glycometabolism by maintaining normal functions of sexual organs and sexual function, influencing the fat metabolism, promoting the growth and tissue regeneration of the body, promoting the mammary gland growth of the sow, raising the quality and amount of the breast milk, reachingthe purpose of increasing the weaning weight of piglets, minimizing the lactation weight loss of sow, and protecting health of the reproduction system, and the sow enables fast recovery and short diestrum, the sow usage time can be prolonged.

The present invention discloses sow feed for improving the milk secretion amount and a preparation method thereof. The feed consists of the following raw materials in parts by weight: soybean cake powder 150-180, dried small shrimps 30-40, potato powder 6-8, gynura cusimbua 3-5, cured fly maggot powder 15-20, pericarpium canavaliae 3-4, mushroom residues 4-6, bone meal 3-4, tomato juice 2-3, sansevieria trifasciata 1-2, fish oil 3-5, peanut seedlings 4-6, rice bran 4-5, silkworm chrysalis powder 8-10, grape skins 2-3, ecklonia kurome okam 4-6, galactogogues 6-8 and a proper amount of water. The feed can stimulate mammary gland development with the addition of the galactogogues to reduce the prolactin inhibiting factor (PIF) secretion, further increase the pituitary prolactin (PRL) secretion, activate gland cells, promote the milk secretion and increase the sow milk secretion amount. The feed is strong in palatability, high in digestibility and rich in nutrition, and can supplement nutritional needs of sows, improve immunity of the sows and piglets and reduce piglet mortality.

The invention provides novel application of a cysteine dioxygenase gene, cysteine dioxygenase or catalysate cysteine sulfinic acid of the cysteine dioxygenase, and particularly relates to application of cysteine dioxygenase genes, cysteine dioxygenase or catalysate cysteine sulfinic acid to promoting development of mammary glands of mammals. The novel application has the advantages that as shown by research, the cysteine dioxygenase, the gene and the catalysate cysteine sulfinic acid are related to development of mammary ducts, extension and ramification of the mammary ducts can be promoted, and the novel application can be used as a means for promoting the development of the mammary glands, increasing the lactation yields and treating maldevelopment of the mammary glands.

The invention discloses a composition capable of enlarging and beautifying breasts, cream and preparation and use methods of cream. The composition is prepared from Lepidium meyenii, dandelions, panax notoginseng, saffron crocus, Anoectochilus roxburghii, green tangerine peels, luffa vegetable sponge, radix rhapontici, swallowwort roots, pearl essence and artemisia argyi powder. The cream is further prepared from the composition. The invention further discloses preparation and use methods of the cream. The composition and the cream, disclosed by the invention, are completely free of hormones and have obvious effects of repairing mastatrophy, external expansion, drooping, flatness and wrinkling and beautifying, enlarging and nursing flat breasts caused by maldevelopment; the composition and the cream can be used for promoting secondary development of the breasts, activating mammary glandular cells through pyrogenic dressing, massage and negative pressure, promoting the blood circulation and rapid fat aggregation of the breasts, prompting mammary growth and enabling the breasts to be full, mellow, dense and compact. In the opinion of a pyrogenic-dressing stasis removing theory of traditional Chinese medicine, pure herb essences are used for dredging channels and collaterals of the breasts and activating blood circulation to dissipate blood stasis, and thus, the breasts can be healthily nursed.

A provided breast nursing cream is prepared from the following raw materials in parts by weight: 5-10 parts of herba leonuri, 2-6 parts of ginkgo biloba leaf, 4-8 parts of marigold, 2-8 parts of frankincense, 2-8 parts of myrrh, 1-5 parts of honeycomb, 8-12 parts of peach blossom, 5-10 parts of pepper , 10-15 parts of retinervus luffae fructus, 4-8 parts of herba centellae, 3-6 parts of trifolium pratense L., 6-8 parts of root of Chinese witchhazel, 10-20 parts of glycerol, 5-10 parts of liquid paraffin, 1-3 parts of isopropyl myristate, 2-4 parts of squalane, and 0.1-1 part of germall. The breast nursing cream is capable of promoting mammary gland growth, promoting breast tissue blood circulation, nursing breast skin and increasing breast elasticity, is capable of enabling breast to be compact and strong after being persistently used, and does not generate any adverse symptoms such as stimulation to skin and the like.

The invention discloses an external composition with efficacy of enlarging the breasts, beautifying the breasts and firming the breasts and a production method of the external composition with the efficacy of enlarging the breasts, beautifying the breasts and firming the breasts, and relates to the technical field of health-care products. The aim is to solve the problem that efficacy of healthilycaring the breasts, preventing mammary gland disease and the like is not achieved during breast enlarging and breast beautifying. The external composition with the efficacy of enlarging the breasts, beautifying the breasts and firming the breasts comprises the following components: a pea extract, a soap bark extract, an acacia senegal gum extract and the like. The production method of the externalcomposition with the efficacy of enlarging the breasts, beautifying the breasts and firming the breasts comprises the step of producing the external composition with the efficacy of enlarging the breasts, beautifying the breasts and firming the breasts from the raw materials of 3 parts of the pea extract, 0.03 part of the soap bark extract, 0.015 part of the acacia senegal gum extract, 0.8 part of sclerotium gum and the like. The external composition with the efficacy of enlarging the breasts, beautifying the breasts and firming the breasts is rich in multiple kinds of nutrient substances, can promote mammary gland development, promotes breast tissue blood circulation, maintains breast skin, enhances the elasticity of the breasts, prevents and treats mammary gland disease of mammary glandhyperplasia, mammary gland inflammations and the like, and can reduce mammary gland disease when used for a long term.

The invention discloses a piglet birth weight increasing feed for sows at the gestation later stage. The piglet birth weight increasing feed comprises the following components in parts by weight: 45-50 parts of corn, 3-8 parts of wheat middlings, 8-15 parts of soybean meal, 3-8 parts of puffed soybeans, 8-15 parts of bran, 8-15 parts of beet pulp, 3-8 parts of bean cream skim, 1-3 parts of imported fish meal, 1-3 parts of soybean oil, 0.6-1.5 parts of dicalcium phosphate, 0.8-1.5 parts of stone powder, 0.2-0.5 part of sodium chloride, 1 part of a trace element vitamin premix, 0.1-0.3 part of lysine, 0.02-0.08 part of methionine, 0.05-0.12 part of threonine, 0.05-0.2 part of choline chloride, 0.01-0.03 part of vitamin E, 0.03-0.08 part of vitamin C, 0.05 part of beer yeast powder, 0.05 partof microzyme, 0.3 part of potassium chloride, 0.01 part of L carnitine and 0.2 part of saccharomyces cerevisiae cell walls. The piglet birth weight increasing feed disclosed by the invention can meetrequirements of foetuses for quick growth at the gestation later stage, and can also meet the requirements of the sows at the pregnancy later stage for mammary gland development.

The invention discloses an anti-oxyradical detoxification-promotion additive for sows. The additive is prepared according to the following formula by weight: 26-40% of peptidase, 8-13% of Streptococcus thermophiles, 1-2% of glutathione, 1.5-2.5% of catalase, 0.5-1.5% of glucose oxidase, 1.5-3.5% of stachyose and 38-58% of a carrier. According to the additive, the peptidase is isolated through habituated culture and fermentation of multiple types of probiotic backing materials, and accurate expression is realized on an ovary, an uterus, spiral artery epithelial cells, corpus luteum and granulecells, so that ovarian functions can be effectively regulated, obstacles can be relieved and normal in vivo hormone secretion can be maintained. All the sows start estrus in one cycle (18-25 d), luteolysis time of the sows after ablactation is controlled within 2-3 d, and mammary gland development of sows after 100 d of gestation and 7 d of lactation is significantly improved. 0.2% of the additiveis added in feed for feeding of a cycle to realize comprehensive adjustment and reinforced metabolism of the sows with oxidative stress, and a comprehensive effectiveness rate for solving stress problems caused by oxyradicals of the sows reaches 97.2%.

The invention relates to an additive containing xylooligosaccharide and a preparation method thereof. The additive is prepared from the following raw materials: 1-5g of xylooligosaccharide; 1 * 10 < 10 >-3 * 10 < 10 > CFU of active yeast; 3-7g of zinc lactate; 2 to 6 g of trehalose; 0.5 to 0.8 g of pomegranate flower extract; and 0.3-0.5 g of hemi-ammonium salt. The feed additive prepared by compounding the oligoxylan, the active yeast, the zinc lactate, the pomegranate flower extract, the hemi-ammonium salt and the trehalose is mixed with a sow feed, so that the feed intake of sows can be effectively increased, the nutrition supply required by the lactation period of the sows is met, the mammary gland development of the sows is promoted, the lactation capability is improved, and the lactation period of the sows is prolonged. The resistance of the sows can be improved, the heat stress resistance of the sows is enhanced, and then the lactation yield of the sows is increased.

The invention belongs to the technical field of sow breeding, and particularly relates to a composite additive bag for promoting mammary gland development of replacement gilts and application of the composite additive bag. The composite additive bag is prepared from an additive and a carrier; the additive is composed of cellulose, inulin, silymarin, baicalin and nicotinic acid; and the carrier iscomposed of zeolite powder and defatted rice bran. The composite additive bag for promoting the mammary gland development of the replacement gilts is researched and prepared according to an apoptosismechanism of mammary gland cells of the replacement gilts, physiological characteristics and reproductive physiological characteristics of mammary gland development of the replacement gilts and physicochemical characteristics of nutrient substances eaten by the replacement gilts. It is found that the weight of mammary glands of the replacement gilts in a third estrus period can be increased, apoptosis of the mammary gland cells in puberty is inhibited, development of mammary gland parenchyma is promoted, then lactation capacity of the gilts in a lactation stage is improved, and productivity and economic benefits of a farm are improved.

A stage feeding method for period of hybridization to delivery of a sow comprises five stages, namely, (1) implantation period of germ cells; (2) constitution recovering period; (3) mammary gland developmental period; (4) fast growing period of fetus; and (5) parturient period. In the method, feeding of low protein feed is performed in the first stage, the amount of the feed is reduced, and the delivery rate is increased by 10%; the amount of the feed is increased in the second stage, the weight of the sow is increased by 10%, and the emaciated constitution of the sow after the hybridization is improved; the amount of the feed is reduced in the third stage, the weight of the sow can be prevented from increasing too much, mammary gland development is facilitated, and the following milk production amount and quality is improved; in the fourth stage, low protein feed is changed into high protein feed, the food intake amount is increased, and fast growing of fetus is facilitated; and feeding is reduced in the fifth stage, stomach indigestion of the sow after delivery is prevented, and influence to the constitution of the sow cannot be influenced. Through precise management of the five stages, the delivery rate of the sow is improved by 10%, the sow mortality rate is 15%, and after ablactation of piglets, the weight of the piglets is increased by 15% compared with the piglets fed in the prior art.

The invention discloses a repair cream capable of beautifying breasts. The repair cream capable of beautifying the breasts is mainly prepared from pea extract, soapbark extract, acacia senegal gum extract, sclerotium gum, xanthan gum, tara gum, carrageenin, allantoin, coumarin, linoleic acid or linolenic acid, vitamin E acetate, eugenol, sodium glycinate, arginine PCA, glucose, methyl parahydroxybenzoats, glucolactone, polyacrylate-3, N-succinyl-chitosan, water and the like. The repair cream capable of beautifying the breasts is rich in various nutriments and capable of promoting mammary gland development, promoting blood circulation of breast tissues, maintaining skin of the breasts and enhancing elasticity of the breasts. In addition, the repair composition capable of beautifying the breasts can further be used for preventing and curing mammary gland diseases such as hyperplasia of mammary glands and mammary gland inflammation and can reduce the mammary gland diseases after being used for a long time. The composition formula is mild, toxic and side effects do not occur, and irritation to skin does not exist.

The invention belongs to the technical field of medical treatment, and particularly relates to a mammary gland image recognition method which comprises the following steps: acquiring a to-be-detectedmammary gland image, and detecting mammary glands by using a detection device, the detection method comprising mammary gland molybdenum target X-ray photography, B-ultrasonic, CT, MRI and nuclide imaging; and acquiring a lump image according to mammary gland development, inputting the lump image into a processing center, carrying out data analysis on a mammary gland lump, obtaining a typing resultto which the mammary gland lump belongs according to the lump in the image, and meanwhile, judging the mammary gland position corresponding to the mammary gland lump according to the mammary gland lump. A mammary gland image recognition device comprises a microprocessor, an image acquisition module, an analysis module, a display module and a communication module, and the microprocessor is in electrical input connection with a power module and the image acquisition module. The accuracy of mammary gland diagnosis is improved, the diagnosis efficiency is improved, and meanwhile the comprehensiveeffect of remote transmission of data is achieved.

The invention discloses an experimental method for promoting animal mammary gland development by using vitamin B3. The method includes the following steps: S1, selecting 20 pregnant female mice, performing single culture, performing 12h:12h day and night discontinuous lighting, and performing free feeding and drinking; S2, taking care born mice by mother mice for four weeks after pregnant mice delivery, performing artificial weaning on the mice, and dividing the mice into two groups including a NT group (10) and a vitamin B3 group (10), wherein the feeding conditions of the NT group remain unchanged, and 0.5% of the vitamin B3 is added into daily feed of the vitamin B3 group; and S3, after the mice are fed for three weeks, killing the mice by cervical dislocation, and taking fourth pairs of mammary glands of the mice for Whole mount staining. According to the method for promoting the adolescent mammary gland development by using the vitamin B3, through in-vivo and in-vitro experiments,the proliferation and cyclin expression of EPH4EV cells and mouse mammary glands are detected, the molecular biology is used to comprehensively evaluate the effects of the vitamin B3 on the EPH4EV proliferation and mouse mammary gland development, and results show that the vitamin B3 can significantly promote the expression of cell proliferation markers in the cells and mouse mammary glands, thereby promoting the cell proliferation and mammary gland development.

The present invention provides a traditional Chinese medicine mammary gland development-promoting composition for lactating sows. The traditional Chinese medicine composition comprises Chinese magnoliavine fruits, tuber fleeceflower roots, Chinese yams, radix astragali, cowherb seeds, papaya and fructus psoraleae. The present invention also provides a feed containing the traditional Chinese medicine mammary gland development-promoting composition and a preparation method. The traditional Chinese medicine mammary gland development-promoting composition for the lactating sows can effectively improve the mammary gland development and milk quality of the lactating sows, improves the health of the piglets and increases the weaning weight. The feed containing the traditional Chinese medicine mammary gland development-promoting composition for the lactating sows enables feed intake to be 15.91% higher, weaning weight loss to be low and piglet weaning litter weight to be 9% higher, can ultimately improve comprehensive economic benefits of breeding, is free of fishmeal and other animal protein powder, reduces costs and has good nutritional effects. The feed preparation method is not complicated, low in production costs and beneficial to promotion in the industry.

The invention discloses a feed additive of promoting mammary gland development of replacement gilts and gestating sows through a nutritional means. The feed additive is composed of the following components according to the following proportions: 15-30% of cysteamine hydrochloride, 10-30% of vitamin E, 5-25% of daidzein, and the balance being glucose. The additive can modulate neuroendocrine system of the sows, increase intake for mammary gland nutrients of the sows, stimulate growth of mammary gland lobular acinus and mammary gland ducts, promote mammary gland development of the replacement gilts and gestating sows, and lay a good foundation for milk output of lactating sows.

The invention relates to the technical field of animal feed, and particularly discloses a feed for improving mammary gland development and postpartum agalactia of sows and a preparation method. The feed is prepared from the following raw materials in parts by weight: 65-75 parts of corn; 25-35 parts of wheat bran; 15 to 25 parts of soybean meal; 15-25 parts of rice bran; 1-5 parts of nicotinic acid; 1-5 parts of oleic acid; 1-5 parts of a lactation promoting additive; 1-5 parts of a vitamin additive; 1-5 parts of an inorganic salt additive. The preparation method comprises the following steps: L1, mixing the corn, the wheat bran, the soybean meal and the rice bran, stirring and crushing to obtain a primary crushed material; L2, uniformly mixing the primary crushed material, the nicotinic acid, the oleic acid, the vitamin additive and the inorganic salt additive to obtain a secondary mixture; and L3, adding the lactation promoting additive and purified water into the secondary mixture, uniformly stirring and mixing to obtain paste, drying the paste, and granulating in a granulator to obtain the feed composition. The feed provided by the invention can be used for feeding sows and can improve mammary gland development and postpartum agalactia of the sows.

The invention relates to the technical field of livestock breeding and particularly discloses a method for feeding lean type gestational sows. The method includes: feeding all of the lean type gestational sows in an early gestation stage according to a high-feed-quantity standard no matter the sows are fat or thin in mating; on the premise that the sows are guaranteed against weight losing, feeding the sows in a middle gestation stage according to a low-feed-quantity standard to prevent excessively fast back fact accumulation which affects mammary gland development; keeping feeding the sows in a later gestation stage according to the high-feed-quantity standard to meet demands of fetuses. A high-feed-quantity range refers to that the feed quality in the early gestation stage is 2.3-3.0kg, and the net energy level is 2200-2400kcal / kg; the feed quality in the later gestation stage is 2.5-3.8kg, and the net energy level is 2300-2600kcal / kg. A low-feed-quantity range refers to that the feed quality in the middle gestation stage is 2.0-2.2kg, and the net energy level is 2200-2400kcal / kg. The method for feeding the lean type gestational sows is simple, practical and conducive to high and stable fertility of the sows.

The invention discloses application of baicalin to the promotion of in vitro expansion of mammary stem cells and the maintenance of stem cell characteristics. As discovered by the invention, the baicalin can promote clone formation and self-renewal of the mammary stem cells during in vitro culture; the baicalin can improve the reconstruction efficiency of the mammary stem cells during in vivo mammary gland reconstruction, and can promote the development of the mammary gland when mice eat the baicalin at puberty; the baicalin can directly up-regulate the expression of a molecular marker proteinC receptor on the surface of the mammary stem cells. Thus, the baicalin can realize in vitro culture and expansion of the mammary stem cells instead of Wnt3A proteins or hormone. In vivo transplantation experiments also show that these mammary stem cells can still keep developing potential even after in vitro long-term continuous cell culture, and can develop into breast organs with complete functions and normal forms.

The invention belongs to the field of feeds, and particularly relates to a six percent-premix for lactating sows and a wheat-type daily ration prepared from the six percent-premix. The premix comprises multivitamins, composite trace elements, DL-methionine, lysine, threonine, L-arginine, valine, composite electrolyte, compound enzyme, 5000 IU of phytase, functional additives, feed attractants, calcium hydrogen phosphate, stone powder, salt, choline, antioxidants and defatted rice bran. On the whole, the daily ration for the lactating sows is capable of protecting the development of mammary glands of the sows, ensuring plentiful milk with high quality in the lactation period of the sows and increasing the survival rate of suckling piglets, and enables the piglets to have higher weaning weight.

The invention discloses application of oleic acid in animal mammary gland development promotion and provides new application of the oleic acid. Cell experiments and animal experiments prove that the oleic acid can effectively promote the proliferation of pig primary mammary gland epithelial cells and mouse mammary gland epithelial cells HC11 and can increase the number of in-vivo mouse mammary gland duct branches and TEB to promote animal mammary gland development. The application has the advantages that the oleic acid is rich in source, free of substances harmful to animals and human being, safe and easy to obtain; in addition, the adding amount of the oleic acid in the application is low, and the oleic acid serving as the nutrition regulation substance can be directly added into animal feed, food or drugs and is safe, effective, free of toxic and side effects and promising in popularization and application prospect in the animal mammary gland development promotion.

The invention discloses a composite premix used for sow, every kilogram of premix contains 260-380 IU of vitamin E, 180-300 IU of vitamin A, 120-180 IU of vitamin D3, 150-180 IU of vitamin K, 150-400mg of folic acid, 600-700mg of selenium yeast, 1-6g of glycine zinc, 3-8g of trifolium pretense extract, 100-250g of calcium hydrogen phosphate, 150-600g of calcium carbonate and the balance of zeolite powder. The composite premix used for sow is capable of raising the immunization function of the sow, promoting the glycometabolism by maintaining normal functions of sexual organs and sexual function, influencing the fat metabolism, promoting the growth and tissue regeneration of the body, promoting the mammary gland growth of the sow, raising the quality and amount of the breast milk, reachingthe purpose of increasing the weaning weight of piglets, minimizing the lactation weight loss of sow, and protecting health of the reproduction system, and the sow enables fast recovery and short diestrum, the sow usage time can be prolonged.

The invention provides a physical breast enhancement device, belongs to beauty equipment and is mainly used in the field of expanding mammary gland and breast skin tissue. The physical breast enhancement technical scheme aims at overcoming the defects of a traditional breast enhancement treatment means and is economical, simple and healthy. In order to achieve the purpose, according to the technical scheme, cushion rings, plastic breast shields and high-elasticity bras of medical silica gel / TPE / TPU / TPR materials are used for form a closed environment for breast tissue, air in the breast shields is sucked through a micro computer controller so that constant negative pressure can be formed around breasts, and local blood circulation is accelerated so that the purpose of promoting mammary gland tissue proliferation can be achieved. The physical breast enhancement device is mainly used for overcoming the congenital mammary gland development deficiency, mastatrophy caused by lactation, asymmetry of two-side breasts and other mammary gland tissue defects to perform proliferation.

The invention relates to the technical field of complete feed for breeding sows, in particular to six-stage nutritional complete feed for the breeding sows and a feeding method. According to the characteristics of parturition period of the breeding sows, the parturition period of the breeding sows is divided into six stages through combination of physiological characteristics and nutritional requirements of the breeding sows in theparturition period, the breeding sows are fed with different kinds of nutritional feed according to the six stages, the feeding process is studied, so that the nutrients in the six stages have cooperative interaction and are supplementary, mammary gland development of the breeding sows is promoted, milk yield is increased, appetite of the breeding sows is improved, food-intake is improved, oestrus times and ovulation times in the non-pregnant period are increased, dystocia rate of the breeding sows is reduced, the whole parturition of the breeding sows is shortened, and quick postpartum recovery of body condition of the breeding sows is facilitated.