1111 results about "Astragalus polysaccharide" patented technology

The invention discloses anti-stress feed additives. The compositions of the anti-stress feed additives are: 15 to 30 percent of astragalus polysaccharides, 15 to 30 percent of radix scutellariae glucoside, 10 to 20 percent of pennyroyal wrappage, 10 to 20 percent of honeysuckle extract, 0.5 to 5 percent of vitamin C, 0.5 to 5 percent of vitamin E, 0.001 to 0.02 percent of chromium picolinate, 0.05 to 0.3 percent of zinc oxide, 0.1 to 1 percent of arginine, 1 to 5 percent of tryptophan, 1 to 5 percent of glutamine, 1 to 5 percent of sodium sulfate, 1 to 3 percent of calcium iodate, 1 to 3 percent of sodium selenite, 1 to 3 percent of potassium dihydrogen phosphate, the balance being auxiliary materials. The anti-stress feed additives are added into poultry feed according to the ratio of 0.1 to 0.3 percent. The anti-stress feed additives have the advantages that: firstly, the anti-stress feed additives can reinforce the anti-stress capability of poultry, and are particularly suitable for reinforcing the cold stress capability and the heat stress capability; secondly, the anti-stress feed additives can quickly replenish electrolyte loss caused by dehydration, and quickly recover the osmotic pressure of cells and adjust the acid-base balance in the body; and thirdly, the anti-stress feed additives can reinforce the anti-positioning capability of water bodies of the aquatic animals.

The invention relates to a fermented liquid feed for pig and poultry as well as a preparation method and an application thereof, belonging to the field of biotechnology, in particular to a liquid feed produced by the fermentation of a plurality of beneficial microbes and Chinese medicinal herbs as well as a preparation method and an application thereof. The preparation method has simple process and comprises the following steps: after primary slant culture and secondary solution culture, lactobacillus, fermentation lactobacillus, bacillus subtilis, natto bacillus and saccharomyces cerevisiae are put into a solid fermenting tank with a fermentation medium containing astragalus root, Na2HPO4, nitrogen source and carbon according to weight proportion. The fermented liquid feed adopting the method has high quality, thicker mellow flavor and short fermenting time, contains protein, polypeptide, small peptide, amino acid, astragalus polyose and a plurality of beneficial microbes and is applicable to preparing various perfect compound feeds for pig and poultry.

The invention relates to an antimold agent foodstuff, consisting of the following components in weight portion: 20 to 40 portions of Bacillus subtilis, 20 to 45 portions of astragalus polysaccharide, 200 to 350 portions of mycotoxins absobent, 20 to 50 portions of vitamin C, 20 to 50 Vitamin E, 5 to 15 portions of lysine, 5 to 15 portions of methionine, 200 to 250 portions of potassium chloride, and 180 to 520 portions of glucose. The invention adds nutritive additives and mycotoxins, etc. into the foodstuff, and can obviously intensify immunity of livestock and resist the attack of antibacterial enzyme to livestock.

The invention provides a serum-free medium for umbilical cord mesenchymal stem cells and belongs to the technical field of cell culture. The serum-free medium for umbilical cord mesenchymal stem cells comprises a basal culture medium body and added ingredients, wherein the basal culture medium body is a DMEM culture medium; the added ingredients include a basic fibroblast growth factor hFGF, a epidermal growth factor hEGF, insulin hI, a leukaemia inhibitory factor hLIF and astragalus polysaccharide. The umbilical cord mesenchymal stem cells are subjected to subculture and amplification in the medium, and the surfaces of the cultured cells are marked and analyzed. The serum-free medium for umbilical cord mesenchymal stem cells overcomes the defect of exogenous pollution of serum and solves the problem of contradiction between the cell expansion number and cost reduction. The medium is free of serum, thereby preventing influence of animal-derived serum ingredients on cell culture. The medium can be used for studying the differentiation and proliferation adjusting mechanism of the umbilical cord mesenchymal stem cells.

The invention discloses a prescription milk powder for a piglet and a preparation method thereof. The prescription milk powder comprises the following components: whole milk powder, desalinized whey powder, whey concentrated protein, egg powder, swollen rice powder, powdered grease, glucose, lactose, lysine, methionine, threonine, trace element additive, complex vitamin, glutamine, choline chloride, vitamin C, milk flavouring agent, calcium lactate, calcium dihydrogen phosphate, antioxidant, astragalus polysaccharide and oligosaccharide. The piglet prescription milk powder has high palatability and high water solubility, is abundant in immune globulin, immune polysaccharide, functional oligosaccharide and high-cream lactoprotein, can well overcome the defect of insufficient milk absorption of the piglet, improves the immunity and disease resistance of the piglet and the raising rate and uniformity before ablactation and during the care period, and fully develops the growth potential of the piglet.

A process for refining astragalus polyose features the combination of microwave extracting, microfilter, ultrafiltration and alcohol deposition, resulting in high output rate and purity, and short period.

The invention discloses a broad-spectrum bactericide of a plant source. The broad-spectrum bactericide of the plant source comprises the raw materials by weight percentage as follows: 0.5-4.5% of berberine, 0.5-20% of astragalus polysaccharide, 0.5-20% of radix tetrastigme extract, 0.5-20% of aloe extract, 0.5-20% of saponins and the balance of water. The broad-spectrum bactericide of the plant source generated after compounding the plant extracts extracted from pure plants has the advantages of efficiency, low cost, environment-friendliness, difficulty to generate drug resistance and innocuity to people and livestock.

The invention discloses a compound feed for preventing fatty liver of tilapia and a preparation method of the feed. The compound feed is prepared from the following raw materials according to a certain proportion: fish meal, fermented soybean meal, meat and bone meal, rapeseed meal, cottonseed meal, wheat bran, wheat flour, calcium dihydrogen phosphate, multi-vitamin premix, multi-mineral premix, soybean oil, soybean lecithin, chitosan oligosaccharide, astragalus polysaccharide and choline chloride. The preparation comprises the following steps of: respectively crushing and screening all the raw materials (except the soybean oil) by a crushing machine, weighing the flour, the calcium dihydrogen phosphate, the multi-vitamin premix, the multi-mineral premix, the soybean lecithin, the chitosan oligosaccharide, the astragalus polysaccharide, the choline chloride and other raw materials according to the mass fraction in the formula and mixing uniformly, further weighing the remaining raw materials, uniformly stirring and mixing, fully uniformly mixing with water, performing extrusion and pelletization by a feed machine, and drying at the temperature of 55-60 DEG C to prepare the feed for the tilapia. The compound feed has balanced nutrition, is suitable for requirements of healthy growth of the tilapia and can further reduce the accumulation of fat in livers of the tilapia and improve disease resistance of the tilapia.

The invention relates to an aqueous two-phase separation method for total flavonoids, saponins and polysaccharides in astragalus. The method comprises the following steps of smashing an astragalus medicinal material; adding a solvent and performing solid-liquid extraction; filtering and removing impurities to obtain crude extract of the total flavonoids and the saponins of the astragalus; taking and concentrating the crude extract of the astragalus; adding an aqueous two-phase system formed by absolute ethyl alcohol / dipotassium hydrogen phosphate, adding water to make the total amount of the system be a constant value; mixing uniformly and standing, wherein the aqueous two-phase system is divided into an upper phase and a lower phase; taking an ethanol phase which contains a large amount of total flavonoids and saponins of the astragalus out; and concentrating the ethanol phase under a reduced pressure to obtain the extract of the total flavonoids of the astragalus. The method has the beneficial effects that the extraction rate of the total flavonoids and the total saponins of the astragalus; simultaneously the total flavonoids and the total saponins can be separated from the polysaccharides of the astragalus in the crude extract; the used solvent is low in toxicity, favorable to environment friendliness and low in cost; the inactivation or the denaturation of the flavonoids and the saponins of the astragalus cannot be caused; the phase separation time is short; the interfacial tension is low; and residual organic solvent does not exist.

The invention provides a Chinese herbal medicine compound amino acid feed additive and a preparation method thereof. The Chinese herbal medicine compound amino acid feed additive is mainly prepared from the following raw materials in parts by weight: 20 to 35 parts of water soluble vitamin, 20 parts of compound amino acid, and 40 to 45 parts of traditional Chinese medicine powder, wherein the traditional Chinese medicine is prepared from astragalus polysaccharide, lumbricus, bombyx batryticatus, ginseng, decumbent bugle herb and liquorice; the water soluble vitamin comprises vitamin B1, vitamin B2, vitamin B6, vitamin B12, 96% of envelope VC, and 35% of VC ester; the compound amino acid is composed of lysine, methionine, cystine, glutamic acid, arginine, tryptophan, phenylalanine, threonine, leucine, glycine and serine. The Chinese herbal medicine compound amino acid feed additive is mixed with normal feed for feeding animals, and can be used for speeding up the animal metabolism, whetting the appetite, prompting the growth, preventing the hypoimmunity as well as the poor growth due to deficiency of vitamin, amino acid and protein, and effectively reducing the risk in feeding.

The invention relates to a compound immunopotentiator for post larvae of litopenaeus vannamei, which comprises the following components in percentage by weight: 20-30 percent of beta-glucan, 20-30 percent of chitosan, 5-10 percent of ginsenoside, 10-20 percent of astragalus polysaccharides, 5-10 percent of phospholipid, 40-60 percent of vitamin C-2-polyphosphate ester, 10-15 percent of vitamin E, 5-10 percent of vitamin A, 10-20 percent of bacillus subtilis and 1-5 percent of clamworm powder. The invention has the following advantages that: (1) the problem of feedback inhibition of the post larvae of litopenaeus vannamei is overcome effectively; (2) the immunity of the post larvae of litopenaeus vannamei is enhanced obviously, and the survival rate is increased; (3) the activity and the growth speed of the post larvae of litopenaeus vannamei are increased obviously; (4) the compound immunopotentiator has the addition amount of only 0.2-0.3% when used as a feed additive for a particle feed of the post larvae of litopenaeus vannamei; (5) no adverse effect on the palatability of the feed exists; and (6) the source of the raw materials is stable, the cost is low, and the production process is simple.

The invention discloses a total-effect health concentrated feed for pigs, belonging to the technical field of feed for breeding of animal husbandry. The total-effect health concentrated feed for the pigs comprises the following raw materials: peeled and expanded soybean meal, bean cakes, peanut cakes, super steam fish meal, shellfish powder, whey protein powder, astragalus polysaccharide, mannan oligosaccharide, calcium hydrophosphate, mountain flour, table salt, choline chloride, amino acid, Chinese herb extract and a premix, wherein the Chinese herb extract comprises the following components: liquorice, dangshen, salvia miltiorrhiza, schisandra chinensis and radix rehmanniae, and the mass ratio of the components is 2.8 to 1.6 to 2.5 to 2 to 1 to 1.3. The concentrated feed for the pigs solves the problems of low feed nutrition conversion rate, uncomprehensive nutrition and the like; the Chinese herb extract, a compound immunoenhancer and a micro-ecological preparation are fed into the feed, so that the problem that the anti-stress capability of the pigs is poor since medicines such as antibiotics are used can be solved, and the diseases of the pigs are well prevented and treated; the total-effect health concentrated feed for the pigs is special in effects, safe and green, has a comprehensive health function and can comprehensively take care of the healthy growth of the pigs from birth to market.

The invention discloses a feed additive for improving disease resistance of livestock and poultry and a production method thereof. The feed additive contains 5 to 10 percent of lentinan, 10 to 15 percent of astragalus polysaccharides, 5 to 10 percent of compound glycyrrhizin, 2 to 5 percent of epimedium herb, 3 to 5 percent of szechwon tangshen root, 3 to 5 percent of beta-glucan, 3 to 5 percent of yeast selenium, 6 to 10 percent of zinc methionine, 2 to 5 percent of potassium chloride, 12.9 to 34.9 percent of vitamin, and 0.1 percent of folic acid. The production method comprises the following steps: a, weighing raw materials in percentage; b, mixing the lentinan, the astragalus polysaccharides, the compound glycyrrhizin, the epimedium herb and the szechwon tangshen root for the first time to obtain a primary mixture; c, adding the beta-glucan, the yeast selenium, the zinc methionine and the potassium chloride into the primary mixture for mixing for the second time to obtain a secondary mixture; and d, adding the folic acid and the vitamin into the secondary mixture for mixing for the third time to obtain a finished product. The additive can effectively strengthen the disease resistance of animals, improves palatability and has good growth promoting effect.

The present invention relates to the field of nutraceuticals, and in particular to nutraceuticals comprising sulfated polysaccharides, Astragalus polysaccharides, resveratrol, and combinations thereof. These compositions find use in inducing physiological responses such, decreasing body fat, increasing lean body mass, alleviating the symptoms of colds, preventing the onset of colds, increasing energy, increasing the feeling of well-being in subjects, and improving skin tone and appearance.

The invention discloses a Yangtze river system eriocheir sinensis compound feed, which is prepared from the following materials: fish meal, bean pulp, cottonseed meal, rapeseed meal, peanut meal, corn germ meal, cuttlefish paste, shrimp meal, soybean phosphatide powder, soya-bean oil, fish oil, lard oil, monocalcium phosphate, high protein flour, shell pigment, trace elements for crab, complex vitamins for crab, choline chloride, a binder, zeolite powder, bacillus licheniformis premix, and astragalus polysaccharide premix. The preparation method of the Yangtze river system eriocheir sinensis compound feed comprises the steps of: mixing materials twice, evenly mixing, pelletizing, keeping warm, cooling, sieving, packaging and the like. The Yangtze river system eriocheir sinensis compound feed can enhance the disease resistance of the eriocheir sinensis, quickens the growth speed of the eriocheir sinensis, enriches crab roe and crab cream, improves the nutritive value of the eriocheir sinensis, increases production and improves productivity for a farmer. The digestion and absorption efficiency of the eriocheir sinensis on the materials can be effectively strengthened, and the stability of particles in water is strong.

The process of preparing high purity astragalus polysaccharide includes the following steps: crushing astragalus root and constant temperature microwave extracting in distilled water at 50-75 deg.c, centrifuging; taking supernatant and decolorizing with active carbon to obtain solution of astragalus polysaccharide; concentrating and adding alcohol via stirring; centrifuging and dissolving the precipitate in distilled water; filtering the gel and chromatography; detecting the collected liquid at 280 nm wavelength and collecting eluted liquid at the absorption peak; and vacuum freeze drying to obtain the astragalus polysaccharide product. The present invention has astragalus polysaccharide product purity over 90 %, relaxed preparing process, low cost and other advantages.

The invention relates to a probiotic-astragalus polysaccharide composition for feeding commercial chicken, which is characterized by comprising the following active ingredients in percentage by mass: 0.3 to 0.6 percent of bacillus licheniformis dry powder, 0.1 to 0.6 percent of lactic acid bacteria dry powder, 0.1 to 0.6 percent of bacillus subtilis dry powder, 10 to 20 percent of astragalus polysaccharide, 20 to 80 percent of corn meal and 10 to 40 percent of soybean meal. Probiotics prepared through large-pot liquid fermentation and 40 DEG C reduced pressure drying technology are adopted in the invention, wherein the viable bacteria content of the probiotics is that: the content of the bacillus licheniformis dry powder is more than or equal to 1*108cfu / g, the content of the lactic acid bacteria dry powder is more than or equal to 1*1,011cfu / g, and the content of the bacillus subtilis dry powder is more than or equal to 1*1,011cfu / g. The composition belongs to an environmentally-friendly growth promoter, has the effects of improving the animal production performance, enhancing the body immunity, providing nutrition for bodies, reducing the harmful gas concentration of a hen house, and the like, and has obvious effect of improving the meat-increasing rate of the commercial chicken.

The invention discloses compound timicosin oral liquid, which comprises the following raw materials in percentage by weight: 5 to 40 percent of timicosin, 2 to 20 percent of astragalus polysaccharide, 2 to 20 percent of chlorogenic acid, 2 to 15 percent of indigowoad root polysaccharide, 4 to 40 percent of chlorogenic acid cosolvent, 0.5 to 2 percent of chelating agent, 0 to 25 percent of timicosin cosolvent, 0.9 to 10 percent of timicosin solvent, 0.004 to 0.01 percent of antioxidant, 0.02 to 0.1 percent of preservative, and 16 to 85 percent of distilled water. The timicosin is matched with the chlorogenic acid, the astragalus polysaccharide and the extract of indigowoad root to perform the complementary effects of different action mechanisms, so that the stronger effects of resisting bacteria and viruses and improving immunity are realized.

The invention belongs to the technical field of natural medicines, and in particular relates to a method for preparing astragalus polysaccharides. The astragalus polysaccharides prepared by the method are high in yield and purity. The method comprises the following steps of: A, extracting astragalus with water to obtain water extract; B, heating the water extract, cooling, and discarding sediments on the bottom layer to obtain supernate; C, concentrating the supernate obtained in the step B into paste, adding ethanol for precipitation, and filtering to obtain crude astragalus polysaccharides;and D, refining the crude astragalus polysaccharides to obtain refined astragalus polysaccharides. The yield of the refined astragalus polysaccharides extracted by the method is 12 to 15 percent, thepolysaccharide content is over 94 percent, and the astragalus polysaccharides can be used for preparing immune medicines and health products. The yield of the polysaccharides in the method is improved by 8 to 11 percent compared with that of the traditional water extraction and ethanol precipitation method, the utilization rate of dry astragalus roots is improved and the production cost is reduced.

The invention provides a preparation method of astragalus polysaccharide selenide, which comprises the following steps: adding astragalus polysaccharide II in dehydrated pyridine, and then adding a selenium-containing reagent SeOCl2; washing the mixture with anhydrous ethanol, depositing and centrifugating, and drying the mixture by vacuum refrigeration; and finally, obtaining light pink powderedastragalus polysaccharide selenide. The preparation method of the invention can increase the content of the organic selenium in the astragalus polysaccharide selenide; the prepared astragalus polysaccharide selenide has high biological availability; and the preparation method shortens the production time, improves the production efficiency and is economical and safe.

The invention relates to a Chinese herbal composite feed additive used for transportation stress recovery of beef cattle, and effectively solves the poor digestive function and immunity problems resulted from poor body conditions brought about during transportation of beef cattle. The additive is prepared by the following components by weight percent: 22-28% of medicated leaven, 15-20% of haws, 0.5-1.5% of astragalus polysaccharides, 1-2% of active yeast, 1.5-2% of niacinamide, 0.7-1.2% of vitamin C, 0.25-0.4% of vitamin E, 0.25-0.5% of zinc sulfate, 20-25% of potassium chloride, 10-15% of ammonium chloride, and 10-15% of magnesium oxide. Specifically, each component is first crushed to a particle size below 0.5mm respectively, the niacinamide, the vitamin C, the vitamin E, the astragaluspolysaccharides and the active yeast are mixed uniformly, then the mixture is mixed with the potassium chloride, the ammonium chloride and the magnesium oxide uniformly, and finally the haws and the medicated leaven are added and stirred uniformly, thus obtaining the feed additive. The composite feed additive of the invention has the advantages of scientific prescription, abundant raw materials, and easy production. Application of the feed additive in the feed of beef cattle after transportation stress can promote the beef cattle to supplement electrolytes, trace elements and vitamins as quickly as possible after transportation stress. Thus, the composite feed additive provided in the invention has the effects of improving body conditions, enhancing digestion function and immunity.

The invention discloses a health care dog food capable of increasing immunity, which comprises the following steps: preparing a component A, which is characterized by uniformly mixing corn, flour, wheat germ, rice flour, salt, embryo cake and Chinese medical stone powder, and then steaming, then inoculating a bacteria liquid to uniformly mix and performing anaerobic fermentation; preparing a component B, which is characterized by mixing cooked chicken, food-grade yucca extract product , wild jujube pulp, longan pulp, jujube, fried malt, Gorgon fruit, coix seeds, astragalus polysaccharide, palm oil, pectase, mannan oligosaccharide, astaxanthin and soya lecithin, and then crushing; uniformly mixing the component A after fermentation and the component B according to weight ratio of 4: 6 under aseptic condition at normal temperature to obtain a semihumid solid, performing quantitative vacuum packaging.

A medicine combination has the function of resisting lung cancer. The combination is mixed with rhizoma paridis saponin and milk vetch root amylose according to the weight ratio of 3 to 1. The rhizoma paridis is extracted by alcohol and then the rhizoma paridis extract is obtained through gradient elutriation of macroporous absorption resin alcohol; the milk vetch root is extracted by water and then the protein is settled and removed to get the milk vetch root amylose; the two extracts are mixed and the medicine is made. The MTT activities experiment in vitro with the MTT method has proven that the medicine combination can obviously control the growth of various lung cancer cells such as LA795 lung adenocarcinoma cell and the IC50 can reach 26.73 ug / ml; the experiment of mouse with the lung cancer tumor has represented that the tumor constraint rate can reach 55.63 percent; in this way, lung transfer of hypodermic transplanted tumor of the mouse with the lung cancer tumor can be obviously controlled and the tumor cells can be brought to death; moreover, spleen index and thymus index can be promoted and the medicine is innocuous and has no side effect. In addition, compared with the raw materials, the medicine combination has high activity and clear function; moreover, the medicine can be made into different types.

The invention relates to a feed additive for promoting the growth of pigs and improving meat quality and a preparation method thereof, wherein the feed additive comprises the following components in percentage by weight: 15 to 30 percent of astragalus polyose, 5 to 10 percent of cassia seed, 10 to 30 percent of radix codonopsitis, 5 to 8 percent of atractylis ovata, 5 to 10 percent of liquorice, 2to 5 percent of garlicin, 7 to 12 percent of dried orange peel, 10 to 15 percent of tea, and 1 percent of vitamin. The feed additive mainly comprises Chinese medicinal herbal, tea and vitamin. The practice proves that: the additive containing the Chinese medicinal herbal, the tea and the like is used to substitute for antibiotics, which can improve the utilization rate of the feed, promote the growth of animals, prevent and cure diseases, and improve ecological environment. Immunologic active materials of the Chinese medicinal herbal in Chinese medical herbal preparations can strengthen the immune function of organisms, improve the anti-stress and anti-disease abilities of the animals, improve the production performance of the animals, have no (low) residue, and are difficult to produce the drug tolerance. By mixing and adding various components of the invention into the feed, the feed additive and the method can greatly improve the growth speed of the pigs, remarkably promote the meat quality and the yield, and have good economic value and social value.

The invention discloses a piglet fodder anti-stress additive as well as a preparation method and an application thereof and belongs to the field of agriculture stockbreeding application. The anti-stress additive provided by the invention comprises 5%-10% of fermentation product, 10-25% of tryptophan, 15-20% of glutamine, 1-3% of acanthopanax senticosus polysaccharide, 0.1-0.2% of fructus ligustri lucidi polysaccharides, 0.1-0.3% of astragalus polysaccharide, 0.1-0.2% of pachymaran, 0.1-0.4% of vitamin E and the balance of zeolite powder. The fermentation product is microbial inoculant powder prepared by the steps of hydrolyzing agricultural waste straw into glucose, culturing lactobacillus plantarum and brewer's yeast by taking the liquid glucose as a matrix, and carrying out spray drying on fermentation liquor. By utilizing the piglet fodder anti-stress additive provided by the invention, the lying behavior of piglets can be increased, the standing behavior can be reduced, rise of saliva cortisol content and blood epinephrine content, caused by group stress of the piglets is reduced, immune globulin content in piglet blood is improved, and further the stress behavior of the piglets in a group is relieved and the immunity of the piglets is improved.

The invention discloses a preparation method of high-activity astragalus polysaccharide. Further, the invention relates to an astragalus polysaccharide containing pharmaceutical composition prepared from the astragalus polysaccharide. A preparation method of the astragalus polysaccharide comprises the following steps of: crushing Radix Astragali medicinal material, immersing it into a CaO aqueous solution, and successively carrying out ultrasonic extraction, cryoprecipitation, centrifugation, microfiltration, ultrafiltration, reverse osmosis and spray drying to obtain the astragalus polysaccharide. The extracted astragalus polysaccharide provided by the invention has high activity and high yield. In addition, the preparation method has a simple technology, is time-saving, energy-saving, highly efficient and simple, and is easy for popularization, development and application.

The invention relates to an adjuvant for enhancing a fish vaccine immunization effect and an application thereof. The adjuvant for enhancing the fish vaccine immunization effect is characterized in that an immune potentiator is extracted from Astragalus mongholicus as a leguminous plant or effective components of the Astragalus mongholicus, comprising Astragaloside and Astragalus polysacharin, and natural products or manually modified products or manually synthetic products comprising the Astragaloside and the Astragalus polysacharin can be adopted to serve as the effective components. The adjuvant is capable of increasing the specific immune protection rate after vaccine component immunization is finished. When the adjuvant is applied, a vaccine can comprise the following components: any one or more than one of expression products of inactivated pathogens, bacterial ghost components, hypotoxic pathogens, attenuated pathogens, protective antigens, antigen subunits, antigen determinants or antigen gene expression vectors of bacteria, viruses and parasites. When in use, the adjuvant can be mixed with the components of the vaccine for application, also cannot be mixed with the components of the vaccine for application and also can be applied with the vaccine at different time.

The invention relates to a method for improving the survival rate of rice field eels in the transportation process and belongs to the technical field of fish culture. The method comprises the following steps: (1) temporary culture of the rice field eels, i.e. transferring the rice field eels to be transported into a temporary culture net cage to carry out temporary culture for one day, stopping feeding and placing few loaches into the temporary culture net cage; (2) preparation and bagging of water for transportation, i.e. dissolving vitamin C and astragalus polysaccharides in water, wherein the vitamin C being added is in an amount of 10g / m3, and the astragalus polysaccharides being added are in an amount of 3g / m3, simultaneously regulating the pH value into 7.0 to 7.5, placing the rice field eels and the water for transportation into a special oxygen bag for aquatic products according to a ratio of 1:1, filling oxygen and sealing, wherein the oxygen content is 6mg / L; and (3) the transportation of the rice field eels, wherein the water is changed for once at intervals of 6 hours in the transportation process so as to ensure that the dissolved oxygen content of the water in the bag is always over 6mg / L and ensure that the pH value is always in the range of 7.0 to 7.5. According to the invention, the vitamin C and the astragalus polysaccharides are added into the water for transportation of the rice field eels, so that the anti-stress capacity of the rice field eels is improved, the stress response, the injury and the death of the rice field eels in the transportation process are effectively avoided, the survival rate of the rice field eels in the transportation process is successfully improved, and a reliable transportation technology is provided for solving the problem of a rice field eel artificial propagation technology and improving the economic benefit of the rice field eels.

The invention provides a pig feed additive capable of effectively improving pig immunity and promoting pig growth. The pig feed additive is composed of astragalus polysaccharide, acanthopanax powder, fermented traditional Chinese medicine powder, muskmelon pedicel powder, tangerine peel powder and the rest carrier, the carrier is a mixture of wheat bran and defatted rice bran at a mass ratio of 1:1. The pig feed additive can remarkably lower incidence of pigs, improve immunity of the pigs and increase growth rate of the pigs, can replace or partly replace application of chemosynthesis additives in feed and has wide market prospect.