54results about How to "Strong content" patented technology

The invention belongs to the technical field of materials, and relates to an ultra-high-strength heat-resistant gear bearing steel with ultra-hardened surface layer and a preparation method thereof. The chemical composition of the steel comprises the following chemical components of, in percentage by mass, 0.08-0.18% of C, 10.0-16.0% of Co, 3.0-8.0% of Ni, 3.0-7.0% of Cr, 3.0-6.0% of Mo, 0.5-2.0%of W, 0.2-1.0% of V, 0-0.1% of Nb, and the balance Fe and impurity elements. According to the method, vacuum induction melting, vacuum induction melting and vacuum arc remelting or vacuum induction melting and electroslag remelting are adopted for smelting. Steel ingots are diffusion annealed and forged into steel products. Steel samples are subjected to preliminary heat treatment, carburization and final heat treatment, the tensile strength of the steel is not less than 1900 MP a, the yield strength is not less than 1600 MP a, and the carburized surface hardness is not less than 850 HV (equivalent to 66 HRC). The method has the advantages that compared with the prior art, the method has higher tensile strength, yield strength and relatively good plasticity, toughness and heat resistance,has excellent surface carburization super-hardening performance and fatigue performance, and achieves good matching of the core super-toughening and surface super-hardening.

The invention provides a feed additive specially used for laying hens in laying period and a preparation method thereof. The additive is prepared by mixing a Chinese medical herb extract preparation that protects the livestock and poultry from diarrhea, nutrients like methionine, lysine, vitamin E and auxiliary materials like medical stones and corn cob meal in proportion, and the parts by weigh is: 100 parts of Chinese medical herb extract preparation, 1 part of methionine, 0.5 part of lysine, 8 parts of vitamin E, 600 parts of medical stones and 290.5 parts of corn cob meal; the Chinese medical herb extract preparation is prepared in advance with raw medical materials of paulownia flower, purslane, water pepper, geranium wilfordii, sanguisorba, copperleaf herb and cactus in proportion by picking, washing, cutting, first aqueous extract, second aqueous extract, combining for decoction, concentrating, absorbing and parching. The weight proportion of the raw medicinal materials is: 29-35 parts of paulownia flower, 22-28 parts of purslane, 20-26 parts of water pepper, 17-23 parts of geranium wilfordii, 17-23 parts of sanguisorba, 13-17 parts of copperleaf herb and 8-12 parts of cactus. Silicon dioxide is chosen as sorbent in the production process and the addition of the silicon dioxide as one of the compositions of the Chinese medical herb extract preparation weighs 85 percent of the raw medicinal materials.

The invention relates to a propolis soft capsule. The propolis soft capsule comprises a rubber sheet and a capsule content, wherein the capsule content comprises the following components in percent by weight: 20%-60% of propolis supercritical CO2 extract, 30%-70% of wheat-germ oil and 1%-10% of vitamin E; components of the rubber sheet are gelatin, glycerol and purified water in a weight ratio of 100:42:100. The propolis soft capsule is integrated with improving effect of propolis on diabetes mellitus and preventing effect of vitamin E on chronic complication of the diabetes mellitus; moreover, the components are good in synergistic effect. The invention also provides a preparation method of the propolis soft capsule.

The invention discloses high-strength environment-friendly polyurethane flame-retardant and waterproof paint which is prepared from a component A and a component B. The component A is prepared from, by mass, 40-60 parts of flame-retardant polyether polyol, 20-30 parts of liquefied diphenylmethane diisocyanate and 10-20 parts of chlorinated paraffin. The component b is prepared from, by mass, 10-20 parts of flame-retardant polyether polyol, 5-20 parts of arene, 10-20 parts of chlorinated paraffin, 10-20 parts of liquid vulcanizing agents, 8-16 parts of flame retardant and 30-40 parts of flame-retardant filler. The polyurethane flame-retardant and waterproof paint has excellent waterproof performance and flame-retardant performance.

The invention provides a water-based epoxy paint and a preparation method thereof. The paint comprises an amino resin, a leveling agent, distilled water, a water-based epoxy acrylic resin, a dispersing agent, a defoaming agent, iron oxide black, superfine talcum powder, precipitated baryte, zinc phosphate, a rust inhibitor and the like; and a nano MoS2 anti-wear agent and a nano CaCO3 ultraviolet absorbent are further added to enhance the properties. By reasonably designing the component types and contents, the thickness of the paint film can reach 100 mu m above, the water resistance is greater than 240 hours, the transmittivity for ultraviolet light with the wavelength of 290-400nm is less than 0.4, the wear-resistant revolution number is up to 1000-1400, the mass loss of the paint film is less than 0.07 g / 100r, and the salt spray resistance is greater than 200 hours. The paint can be brushed on the internal and external walls of an iron building, has excellent protective effect, and is especially suitable for protecting iron building cultural relics.

The invention discloses a wide-channel plate heat exchanger which comprises a support, a shell, a heat exchange core body, a heat exchange medium inlet, a heat exchange medium outlet, a heat transfer medium inlet and a heat transfer medium outlet, wherein the heat exchange medium inlet, the heat exchange medium outlet, the heat transfer medium inlet and the heat transfer medium outlet are positioned in the shell and communicate with the heat exchange core body; the heat exchange core body comprises heat exchange medium circulation channels and heat transfer medium circulation channels; the heat exchange medium circulation channels are provided with a plurality of nest-shaped turbulence chambers; and the shell is a combined structure. According to the wide-channel plate heat exchanger, the heat exchange efficiency is high, the energy consumption is low, and the maintenance is convenient.

The invention discloses blueberry composite powder high in anthocyanin content and a preparing method thereof.Blueberry powder with natural color, flavor and mouthfeel are scientifically combined with functional products including lactobacillus plantarum powder, honey powder, modified dietary fiber, enzyme powder and oligosaccharide, so that the nutritional value, food security and healthcare effect of the blueberry composite powder are effectively improved, and the probiotic property and quality stability of the blueberry composite powder are improved remarkably.Compared with existing blueberry composite powder, the blueberry composite powder high in anthocyanin content has the advantages that components are simple, color, flavor and mouthfeel are natural, nutritive value is high, healthcare function is good, the content of bioactive substances is high, the number of probiotics viable organisms is large, probiotic property is high, the number of species of probiotics functional metabolites is large, the content is high, food security is high, and storage life is long.

The invention relates to a feed additive specially used for pigs in a nursery period and a preparation method of the feed additive. The feed additive specially used for the pigs in the nursery period is prepared by mixing the following raw materials in parts by weight: 100 parts of Chinese herbal medicine extract preparation capable of preventing diarrhea of livestock and poultry, 100 parts of sodium butyrate nutrient substance, 2 parts of lysine nutrient substance, 8 parts of nutrient substance vitamin E, 510 parts of medical stone auxiliary material and 280 parts of defatted rice bran. The preparation method of the feed additive specially used for the pigs in the nursery period comprises the following two steps: preparing the Chinese herbal medicine extract preparation, and adding nutrient substances and auxiliary materials into the Chinese herbal medicine extract preparation. The feed additive specially used for the pigs in the nursery period has the advantages that food consumption and body weights of the pigs in the nursery period can be effectively improved, and feed to gain ratio and death and culling rate of the pigs in the nursery period are reduced.

The invention discloses a carbon-based film for inhibiting secondary electron emission and a preparation method thereof. The film is composed of a metal buffer layer and an amorphous carbon film layer, wherein the thickness of the metal buffer layer is 5-50 nm, the thickness of the amorphous carbon film layer is 30-200 nm, the size of carbon particles in the amorphous carbon film layer is 20-100 nm, and metal materials in the metal buffer layer is titanium, molybdenum or tungsten. The preparation method of the carbon-based film comprises the following steps that firstly, the metal buffer layeris deposited on a base in a metal target sputtering mode under the condition that the temperature of the base is 400-600 DGE C; then, the amorphous carbon film layer is deposited on the metal bufferlayer in a graphite target sputtering mode under the condition that the temperature of the base is 300-600 DGE C; and finally, the amorphous carbon film layer is subjected to high-temperature annealing treatment or / and sputtering treatment is carried out on the surface of the amorphous carbon film layer by argon ions. According to the carbon-based film prepared by the method, the content of sp2 bonds and the surface roughness of an amorphous carbon film can be improved, so that the secondary electron emission coefficient of the amorphous carbon film is reduced.

The invention discloses a multi-functional micro-ecological nutritional river crab feed with the functions of preventing and removing chemical and heavy metal pollutants in crab cream and crab spawn. The multi-functional micro-ecological nutritional river crab feed is composed of imported fish meal, fermented black seed coat peanut meal, fermented highland barley powder, fermented maize yellow powder, limited enzymolysis castor protein isolate, full-nutritional wall-broken yeast powder, fermented black seed coat peanut coat, micro-ecological preparation microcapsules, fermented microalgae powder, and compound stable vitamins and compound trace elements for crabs. The multi-functional micro-ecological nutritional river crab feed is purely natural and environment-friendly, and has the functions of improving immunity of river crabs, promoting growth of river crabs, enhancing activity of river crabs, enabling river crabs to be full in muscle, increasing the crab cream and crab spawn contents, and preventing and removing chemical and heavy metal pollutants accumulated in the crab cream and crab spawn.

The present invention discloses a silurus asotus feed phagostimulant and a preparation method thereof, and belongs to the technical field of feed additive preparations. Based on nutritional requirements of silurus asotus and water body environment, and combining food intake characteristics, a formula of raw materials is optimized. The silurus asotus feed phagostimulant scientifically combines compound flavor peptides greatly improving palatability and feed utilization rate, having a relatively strong anti-oxidation effect and eliminating free radicals; an accharomyces cerevisiae culture having functional characteristics of being strong in nutrition, biological activity, oxidation resistance, etc.; a high-calcium cerasus humilis extract effectively supplementing calcium, iron and soluble fibers, having a strong embedding effect and prolonging a shelf life; artemisia carvifolia seed powder significantly improving antifreeze effects and stability, improving water resistance and gloss, and enhancing and promoting palatability; and wheat malt powder providing rich nutrients, bioactive substances and plant enzyme sources. Finally, the prepared silurus asotus feed phagostimulant is strong in phagostimulant and good in production performances.

A household multifunctional health maintenance instrument consists of an electronic instrument, a human body model, a keyboard and a display screen. The household multifunctional health maintenance instrument has the following functions: firstly, knowledge and methods about traditional Chinese medicine, meridian, heath maintenance and therapy can be inquired simply and conveniently through the instrument, and then displayed by the human body model or display screen; secondly, fundamental theory of traditional Chinese medicine and some health maintenance knowledge and methods are stored in a database of the instrument and can be inquired conveniently; thirdly, meridian running and points needing attention and moderate activities are displayed periodically when the instrument is in a standby state; fourthly, users can store the individual special health maintenance methods according to actual conditions thereof, and the instrument has a voice playing and reminding function; and fifthly, the instrument has functions of simple constitution examination, personal health maintenance method storage and the like. Accordingly, the household multifunctional health maintenance instrument is high in power, convenient in use and attractive in appearance, has fine effects on personal health maintenance and disease treatment, and meanwhile, can facilitate universal popularization of the culture of traditional Chinese medicine greatly.

The invention discloses a catfish feed compound enzyme and a preparation method thereof. The preparation method of the catfish feed compound enzyme is characterized by taking nutritional requirement of the catfish and the water environment as the basis, optimizing the raw material formula, combining digestion characteristics of the catfish and scientifically compounding a wine making yeast culture material with functional characteristics such as high nutrition performance, high biological activity, high oxidation resistance and the like, a calcium fruit extract capable of effectively supplementing calcium, iron and soluble fiber, providing powerful embedding effect and prolonging the quality guarantee period of the feed compound enzyme, wormwood seed powder capable of obviously improving anti-freezing effect and stability of the feed compound enzyme, improving water resistance and glossiness of the catfish feed and reducing powder content in the feed, a palatable agent capable of greatly improving palatability and digestion rate of the feed, and wheat malt flour capable of providing rich nutrient materials, biological active materials and plant enzyme sources to finally obtain the catfish feed compound enzyme capable of obviously enhancing digestion rate and parturition performance of the catfish, reducing the feed coefficient, preventing water pollution and maintaining high water quality.

The invention belongs to the biotechnological field, and concretely discloses a preparation method of Rhodiola rosea extract for effectively promoting sleep and enhancing immunity. The preparation method comprises the following steps: 1, carrying out ultrafine crushing on Rhodiola rosea; 2, adding water, glucose, peptone and corn steep liquor to the above obtained Rhodiola rosea powder to prepare a fermentation solution, and sterilizing the fermentation solution; 3, inoculating Aspergillus oryzae and Aspergillus niger, carrying out aerobic fermentation, inoculating Streptococcus faecalis and Bacillus coagulans, and carrying out anaerobic fermentation; 4, adding phenylalanine and tyrosine in a fed-batch manner in the fermentation process to carry out metabolism regulation; and 5, centrifuging the obtained fermentation solution, and carrying out spray drying to obtain the Rhodiola rosea extract. The content of glycosides and tyrosol in Rhodiola rosea is substantially improved through fermentation of the Rhodiola rosea with various microbes, through metabolism regulation by adding phenylalanine and tyrosine and through microbial fermentation.

The invention discloses a high-yield catfish feed attractant and a preparation method thereof and belongs to the technical field of feed additive preparation. The high-yield catfish feed attractant and the preparation method thereof have the advantages that the nutritional requirements of catfish and water environments are combined with the ingestion features of the catfish to optimize a raw material formula, raw materials are scientifically compounded to greatly increase palatability and feed utilization rate, and the attractant comprises compound flavor peptide which has high anti-oxidation effect and is capable of removing free radicals; the high-yield catfish feed attractant contains saccharomyces cerevisiae culture with functional features such as high nutrition, high bioactivity and high oxidation resistance, Prunus Humilis Bunge extract which can effectively supplement calcium, iron and soluble fibers, has a powerful embedding effect and can prolong shelf life, wormwood seed powder which can evidently increase an anti-freezing effect and stability, increase water resistance and glossiness, enhance and promote palatability and lower powder content, and wheat malt powder which can provide rich nutritional substances, bioactive substances, fragrant substances and plant enzyme sources; the prepared high-yield catfish feed attractant is high in palpability and good in production performance.

The invention discloses prebiotic blueberry composite powder and a preparation method thereof. Blueberry powder with natural color, flavor and mouth feel is scientifically compounded with functional products including lactobacillus plantarum powder, honey powder, modified dietary fibers, enzyme powder, oligosaccharide and the like, so that the nutrition, the food safety and the health care functions of the blueberry composite powder are effectively improved, and besides, the prebiotic property and the quality stability of the blueberry composite powder are greatly improved. Compared with conventional blueberry composite powder, the prebiotic blueberry composite powder disclosed by the invention has the advantages that components are simple, the color, the flavor and the mouth feel are natural, the nutrient value is high, the health-care functions are powerful, the content of bioactive substances is high, the viable count of probiotics is high, the prebiotic property is strong, the kinds of functional metabolites of probiotics is complete, the content of the functional metabolites of the probiotics is high, the food safety is high, and the quality guarantee period is long.

The invention discloses a neutron detector based on boron-conversion multi-stage grid gas, wherein the neutron detector can be used for replacing a 3He pipe detector. A boron-plated aluminum strip isused to form multi-layer square pipes, and the aluminum strip is provided with card slots at certain intervals, so that the distance between the square pipes is the distance between the card slots. The card slots on the boron-plated aluminum strip are inserted into a pre-designed aluminum frame, and the center of each unit square pipe is provided with a resistive anode wire. The position in a wiredirection is obtained by a charge distribution method, and the position of the unit pipe determines a lateral position. The layer position where the unit pipe is located gives a longitudinal position, so that it is possible to accurately determine which unit the neutron is detected, thereby achieving three-dimensional detection of neutrons. The detection efficiency of the neutron detection technology which can be used for replacing a 3He pipe is greater than 30%. The thickness of an effective boron neutron conversion layer can be increased through adding the layers of unit square pipes, thereby achieving the improving of the detection efficiency, and reducing the production cost.

The invention discloses blueberry composite powder capable of reducing cholesterol and a method for preparing the blueberry composite powder. The blueberry composite powder and the method have the advantages that blueberry powder with natural colors, flavor and taste and functional products such as lactobacillus plantarum powder, honey powder, modified dietary fibers, enzyme powder and oligosaccharides are scientifically compounded with one another, accordingly, nutrition characteristics, the food safety and healthcare functions of the blueberry composite powder can be effectively improved, and the probiotic property and the quality stability of the blueberry composite powder can be obviously improved; as compared with existing blueberry composite powder, the blueberry composite powder contains simple components, bioactive substances with high contents, large quantities of survival probiotic and complete types of probiotic functional metabolites with high contents, has natural colors, flavor and taste, high nutritional value and the powerful healthcare functions and is high in food safety and long in shelf life.

The invention discloses blueberry composite powder and a preparation method thereof. Blueberry powder with natural color and luster, flavor and taste is scientifically compounded with functional products such as lactobacillus plantarum powder, honey powder, modified dietary fiber, enzyme powder and oligosaccharide, the nutrition, food safety and healthcare function of the blueberry composite powder are effectively improved, and the probiotic property and quality stability of the blueberry composite powder are significantly improved. Compared with existing blueberry composite powder, the components are simple, the color and luster, flavor and taste are natural, the nutrition value is high, the healthcare function is high, the bioactive substance content is high, probiotics viable number is high, probiotic property is high, complete species of probiotics functional metabolites are produced, the content of the probiotics functional metabolites is high, food safety is high, and the shelf life is long.

The invention discloses weariness-resistant blueberry composite powder and a preparation method thereof. Blueberry powder with natural color, flavor and mouth feel is scientifically compounded with functional products including lactobacillus plantarum powder, honey powder, modified dietary fibers, enzyme powder, oligosaccharide and the like, so that the nutrition, the food safety and the health care functions of the blueberry composite powder are effectively improved, and besides, the prebiotic property and the quality stability of the blueberry composite powder are greatly improved. Compared with conventional blueberry composite powder, the weariness-resistant blueberry composite powder disclosed by the invention has the advantages that components are simple, the color, the flavor and the mouth feel are natural, the nutrient value is high, the health-care functions are powerful, the content of bioactive substances is high, the viable count of probiotics is high, the prebiotic property is strong, the kinds of functional metabolites of probiotics is complete, the content of the functional metabolites of the probiotics is high, the food safety is high, and the quality guarantee period is long.

The invention discloses a chemical deodorization method for sludge. The method comprises steps as follows: to-be-treated sludge is put in an adjusting tank, the water content of the to-be-treated sludge is adjusted, the sludge in the adjusting tank is pumped into a reaction tank, a high ferrate solution is added to the reaction tank, the sludge in the reaction tank is stirred, quick lime and a surfactant are added to the reaction tank, the sludge in the reaction tank is continuously stirred, the sludge in the reaction tank is pumped into a dewatering tank, diatomite and zeolite are added to the dewatering tank, the sludge in the dewatering tank is stirred and settled in the dewatering tank, a liquid supernatant obtained after settlement is discharged into a water storage tank, dewatering treatment is performed through sludge dewatering equipment, discharged water is conveyed to the water storage tank, discharged sludge is conveyed to a mud tank, and mud conveyed into the mud tank is taken out and transported from the mud tank after being left to stand for specified time. The sludge deodorization effect is effectively improved, so that sludge is effectively utilized, pollution of sludge to the environment is reduced, and the application value of sludge is increased.

The invention discloses a high-digestion high-utilization-rate catfish feed, and belongs to the technical field of processing of catfish feeds. Based on nutritional requirements of catfish and water body environment, the digestion characteristics of the catfish are combined, the formula of a conventional catfish feed is optimized, and a feed complex enzyme, wormwood seed powder, a prunus humilis bunge extract and a phagostimulant are scientifically compounded, so that the catfish feed can be prepared, wherein the feed complex enzyme can effectively degrade anti-nutritional factors in the catfish feed, increase the utilization rate of nutrient substances of starch, protein, minerals and the like, increase the protein level, the organism antioxidative activity and the digestive absorption rate of the catfish, significantly increase the digestibility and the production properties of the catfish, reduce the feed coefficient, prevent the water bodies from being polluted and maintain good water quality is scientifically compounded; the wormwood seed powder can significantly improve the caking property, the water resistance, the glossiness and the frost resistance of the catfish feed and reduce the powder containing rate of the feed; the prunus humilis bunge extract can effectively complement calcium, ferrum and soluble fibers; the phagostimulant can substantially improve the palatability of the feed; and therefore, the catfish feed is good in feed coefficient, high in digestibility, good in production properties, high in propagation properties, high in disease resistance, high in palatability and low in cost.

The invention discloses self-healing polyurethane waterproof coating and a preparation method thereof. The self-healing polyurethane waterproof coating comprises a component A and a component B, wherein the component A comprises terpene phenolic resin, a plasticizer, polyester polyol, polyether polyol A, diisocyanate and a catalyst; the component B is prepared from the following components: a plasticizer, asphalt, polyether polyol A, polyether polyol B, filling oil, a filler, a thixotropic agent, a dispersing agent, a chain extender, a defoaming agent and a catalyst; the number-average molecular weight of the polyether polyol A is 2,000 to 4,000; the number-average molecular weight of the polyether polyol B is 300 to 500; the filler is alkaline earth metal hydroxide; the mass ratio of thecomponent A to the component B is 1:(2-4). The self-healing polyurethane waterproof coating disclosed by the invention has the tensile strength of polyurethane coating and the self-healing property ofnon-cured rubber asphalt waterproof coating, and also has the characteristics of excellent adhesion with the existing waterproof coiled material and the like.

The invention relates to a filtering material for removing iron and manganese from water, and a manufacturing method thereof. The invention is characterized in that the filtering material is made by using irregular polyhedral filtration particles, which are obtained by crushing and screening building ceramic particles and of which the surfaces have pores, and by making an adhesive layer containing ferric oxide and manganese on the surfaces of the filtration particles by using a chemical or coating method. The filtering material has a large specific surface ratio, a small specific gravity and good physical and chemical properties and can be manufactured by a simple and convenient method. The water iron and manganese filtration effect of the filtering material is better than that of natural manganese sand, so the filtering material has a promising market application prospect.

The invention discloses an acne-removing composition and a preparation method of an emulsion thereof. The acne-removing composition comprises the following components in percentage by mass: 2-6% of nicotinamide, 0.1-4% of silybin, 1-5ppm of silver ions, 1-3% of royal jelly, 0.5-5% of azelaic acid and the balance water. According to the acne-removing composition disclosed by the invention, the active ingredients in the formula are reasonably combined according to the acne occurrence mechanism, and the form, concentration, adding method and adding sequence of the raw materials are properly selected according to the characteristics of the active ingredients. Meanwhile, the preparation process is optimized, the loss of the active ingredients is reduced, and the formula stability is improved. The antibacterial activity, lipase inhibition activity and anti-inflammatory activity of each component are extremely high, and the acne treatment effect is good. In the aspect of controllable quality, the formula components are simplified and clear in content, and the condition that the quality is uncontrollable easily caused by compounding multiple traditional Chinese medicine extracts in like products is avoided.

The invention discloses a grape composite powder and a preparation method thereof. The grape composite powder is prepared from grape powder with natural color and flavor, lactobacillus plantarum powder, wheat malt powder, modified dietary fiber, enzyme powder, papaya powder and other functional products through scientific compounding, the nutrition, the food safety and the health care function of the grape composite powder are improved, and the probiotic property and the quality stability of the grape composite powder are remarkably improved. Compared with existing grape composite powder, the grape composite powder contains simple components and has natural color, flavor and taste, high nutritional value and a good healthcare function, the content of bioactive substance is high, the number of viable bacteria of probiotics is high, the probiotic property is good, the functional metabolin variety of probiotics is complete, the content is high, the food safety is high, and the guarantee period is long.

The invention discloses a polyurethane film for shoes. The polyurethane film for shoes is formed by combining, by mass, 47-51% of polyurethane coatings in the uppermost layer, 40-41% of pressure sensitive adhesives at the middle layer and 7-15% of carbon fibers at the lowermost layer. The polyurethane coatings comprise isocyanate and polyether. The polyurethane film for shoes has the advantages of high intensity, elongation, solid content and adhesion stress.

The invention provides light porous daily fine porcelain. The light porous daily fine porcelain is prepared from the following chemical components in percentage by weight: 54-64% of SiO2, 30-37% of Al2O3, 0.1-1% of K2O, 0.2-0.5% of Na2O, 1-5% of CaO, 1-3% of MgO and 0-1.5% of P2O5. Any pore forming agent or foam stabilizer does not need to be added in the preparation process of the porcelain body,a plurality of closed pores can be formed through firing, and the fine porcelain with low volume density, high mechanical strength and high light transmittance is obtained.

The invention discloses an azotobacter-rich high-activity rhizobium strain and a production technology of processing an organic fertilizer of the azotobacter-rich high-activity rhizobium strain. The production technology comprises the following steps of by taking the azotobacter-rich high-activity rhizobium composite strain as a strain, performing micro oxygen consumption fermentation on various bio-wastes and livestock manures, and performing dewatering and pelletizing (or crushing) to prepare a pure organic fertilizer (or an organic biological composite fertilizer). As a rhizobium flora is relatively high in the content of azotobacter, is strong in the bioactivity, can greatly convert the bio-wastes to nitrate nitrogen, ammoniacal nitrogen, organic acid and organic matters by being mutually matched with saccharomycetes, rhizopus oryzae and basidiomycetes and matched with proteins, hydrolase, sucrose, cellulose and ligninase in the saccharomycetes, the rhizopus oryzae and the basidiomycetes together under the condition of half oxygen consumption and micro oxygen consumption so as to become necessary nutrient including nitrogen, phosphorus and potassium matters to agricultural andforest crops and economic crops and better solves the utilization problems of various bio-wastes.

The invention discloses a concentrate supplement for beef cattle at the later stage of fattening. The preparation raw materials of the concentrate supplement comprise the following components of corn,guniting corn husks, corn DDGS, corn germ meal, puffed soybeans, glutamic acid dregs, stone powder, aminated corn stalks, and a core material, wherein the core material comprises radix astragali, black wood ears, radix codonopsis, chrysanthemum nankingense, kalimeris indica, old rice, banana peel and pomelo peel. The effects of increasing the feed conversion rate, reducing the excrement and urinemalodour, improving the immunity of fattening cattle and promoting growth of the fattening cattle can be achieved.