113results about How to "Prevent growth and reproduction" patented technology

The invention discloses an edible biological preservative film and a preparation method thereof. The edible biological preservative film comprises the following components in parts by weight: 30-60 parts of a film former, 1-10 parts of a natural antioxidant, 1-10 parts of a natural bacterial inhibitor, 1-4 parts of a plasticizer and 0.5-4 parts of an emulsifier. The preparation method comprises the following steps: mixing the components in proportion to form preservative film liquid, and preparing the preservative film by adopting a tape-casting process. According to the preservative film, excellent film forming performances of materials such as marine polysaccharides, chitosan, gelatin and the like are utilized, the natural antioxidant and the natural bacterial inhibitor are selected and used, and the modification process is carried out through the plasticizer, the emulsifier and the like, so that the prepared preservative film is good in mechanical property, delays the spoilage of an aquatic product and can effectively prolong the shelf life of the aquatic product.

The present invention discloses a fermented pig feed, which is prepared from the following raw materials by weight: 100 to 130 parts of corn, 10 to 17 parts of tea dreg, 4 to 6 parts of bone meal, 10 to 16 parts of soybean powder, 2 to 3 parts of banana leaf, 1 to 2 parts of hybrid pennisetum herb, 2 to 3 parts of cayenne pepper leaf, 3 to 5 parts of celery powder, 3 to 4 parts of pitaya peel, 2 to 3 parts of matteuccia struthiopteris, 2 to 4 parts of brewer's yeast powder, 3 to 4 parts of pomelo skin, 5 to 7 parts of beet pulp, 2 to 3 parts of lily, 1 to 2 parts of licorice and 2 to 3 parts of nutrition flavoring agent. According to the present invention, piling fermentation of the pig feed improves the feed taste, extends the shelf life of the feed, prevents pathogenic microorganisms in pigs' body from colonizing, growing and reproducing, and restores and maintains the pigs' intestinal microflora balance, thereby improving immunity and disease resistance, enhancing disease resistance and antibacterial ability, and reducing the incidence of pigs.

The invention provides a preparation method of a plant unbleached impregnated specimen. In the invention, the fixative of the operation process adopts a composite biocidal formula and simplifies the fixing and biocidal procedures, and the operation is simple; and the preservation solution for preserving the plant specimens adopts nontoxic and inexpensive biological extracts, such as garlic extract, ginger extract, carboxylation chitosan and the like, and solves the problem of environmental pollution when preserving and storing the plant specimens. The preparation method of invention can be applied to the impregnation and preservation of monochromatic plants, such as green, yellow, red, white plants and the like, multi-color plants and whole plant specimen, and provides a novel way for preparing the plant unbleached impregnated specimens.

This invention relates to a silver-bearing crustamine fabric with anti-biotic action and its preparing method, which is composed of 90.0-99.9 percent of crustamine powder in weight and 0.1-10 percent of insoluble silver compounds particles. The invention has great anti-biotic action, and can be used as medical dressing to restrict the bacteria on wound.

The invention belongs to the field of agricultural fertilizer and particularly relates to microbial fertilizer particles and a preparation method thereof.According to the microbial fertilizer particles, duck manure, monosodium glutamate leftovers, furfural residues, corncobs, plant ash and traditional Chinese medicine residues serve as fermentation backing materials, bacillus subtilis, bacillus laterosporus, streptomyces microflavus, paecilomyces lilacinus, bacillus licheniformis, bacillus megatherium and aspergillus niger serve as fermentation bacteria, aerobic fermentation, granulation and enveloping are conducted, and the microbial fertilizer particles are formed.The number of live bacteria in the microbial fertilizer particles is 580 million CFU / g or above, the organic matter content is 62.5 wt% or above, the pH is 7.1-7.2, and the ratio of the content of N to the content of P to the content of K is (2.5-3.0):1:(1.8-2.1).According to the preparation method, the raw materials are easy to obtain, operation is easy, and the fermentation process is easy to control.

The invention relates to a method for preparing a modified atmosphere fresh-keeping film for fruits and vegetables. The fresh-keeping film is prepared by compounding an ethylene absorption and decomposition agent with gas absorbency and resin. The modified atmosphere fresh-keeping film comprises the following components in percentage by weight: 60 to 80 percent of poly(4-methyl-1-pentene) resin, 10 to 20 percent of low-density polyethylene, 2 to 5 percent of inorganic moisture-penetrating agent and 0.1 to 5 percent of ethylene absorption and decomposition agent. The modified atmosphere fresh-keeping film has the advantages of retarding the metabolic ageing of the fruits and the vegetables and prolonging the quality guarantee periods of the fruits and the vegetables, along with high carbon dioxide and oxygen permeability, high moisture-penetrability, ethylene absorption and decomposition functions, and relatively better fresh-keeping effects on the fruits such as bananas, apples and the like.

The invention relates to a laundry detergent used for washing underwear. The laundry detergent comprises the following components in percentage by weight: 8 to 10 percent of fatty alcohol polyoxyethylene ether sodium sulfate, 1 to 4 percent of propylene glycol, 4 to 10 percent of lauramidopropyl betaine, 0.1 to 1.0 percent of p-chloro-m-xylenol, 1 to 4 percent of cocoanut fatty acid monoethanolamide, 0.1 to 0.5 percent of kathon, 2 to 5 percent of fatty alcohol polyoxyethylene ether, 0.2 to 0.4 percent of essence, 0.0002 to 0.0004 percent of pigment, 0.2 to 0.6 percent of salt and the balance of water; and a proper amount of citric acid is used for adjusting the pH of the laundry detergent to be between 4.0 and 8.5. The phosphorus-free and antibacterial laundry detergent provided by the invention has the advantages of bacteriostasis, decontamination, moderation, fragrance, hard-water resistance, prevention of bacteriological regeneration in cloudy and rainy days and the like, and has the characteristics of simple preparation process, convenient material acquisition, low cost, good economic benefit, suitability for industrial production and wide application prospect.

The invention discloses a microbial preparation and a fermentation process thereof. The microbial preparation is characterized by comprising the following raw materials in percentage by weight: 3 percent of lactobacillus plantarum, 4 percent of bacillus subtilis, 3 percent of saccharomyces cerevisiae, 20 percent of bean dregs, 45 percent of corn, 10 percent of cotton dregs and 15 percent of bran coat. The fermentation process comprises the following steps of: performing liquid amplification culturing on selected strains respectively; after culturing, performing solid inoculation on the respectively-cultured strains; adding a certain amount of water to keep the water content of a material at about 37 percent; directly stirring uniformly with a horizontal stirrer; putting into a special packaging bag for tight sealing; and fermenting at room temperature of 20-30 DEG C for 7 days. In the fermentation process, aerobic bacteria and anaerobic bacteria are combined for fermenting, and fermentation is performed after packaging, so that the problem of over high temperature of the material caused by heat production during solid aerobic fermentation is solved skillfully; and anaerobic control is performed, so that the temperature of the material is always kept about 15-25 DEG C, the water content is about 37 percent, the low-temperature drying process of the material is eliminated, energy is saved, the emission of harmful gases is reduced, and the product quality is enhanced.

The invention provides a preservation method for fresh cut aralia elata seem through the combination of high-concentration oxygen modified atmosphere packaging and low-temperature storage. The preservation method comprises the first step of selecting, the second step of cleaning, the third step of airing, the fourth step of tidying, the fifth step of bagging, the sixth step of air exhausting, the seventh step of inflating, the eighth step of sealing and the ninth step of storing. According to the method, a high-resistance polyethylene film is adopted as a modified atmosphere packaging bag, gas of the high-concentration oxygen modified atmosphere packaging comprises, by inflating proportion, 75%-95% of oxygen and 25%-5% of carbon dioxide gas, and low-temperature storage is combined after modified atmosphere packaging. The preservation method is applied to the preservation of the fresh cut aralia elata seem, the poisonous effect generated by anaerobic respiration is obviously reduced, meanwhile, the respiration action is reduced, color changing is prevented, moisture evaporation and pest and disease damage infections are reduced, the original unique flavor and the nutrient ingredients of the aralia elata seem are maintained to the maximum, and the shelf life of the fresh cut aralia elata seem is effectively prolonged. According to the technical scheme, the rot, browning and reduction of vitamin C, total phenols and other nutrient ingredients of the fresh cut aralia elata seem are obviously restrained, the hardness and the antioxidant activity of the fresh cut aralia elata seem are improved, the fresh cut aralia elata seem has high appearance quality and sanitary quality, the preservation period of the product is prolonged to 10-12 days from 2-3 days, and the price can be increased by 2 times.

The invention belongs to the technical field of chemicals for daily use, and concretely relates to an air conditioner sterilizing and cleaning agent as well as a preparation method thereof. The air conditioner sterilizing and cleaning agent comprises the following components in percentages by mass: 16-20% of a nonionic surfactant, 7-10% of an anionic surfactant, 3-6% of a bactericide, 1.5-3% of citric acid, 1.5-5% of a water-soluble auxiliary agent, 1-3% of a chelating agent, and 53-70% of water. The agent is advantageous in that compatibility is reasonable and scientific, components are mutually effected, and after washing, flushing with water is not needed; secondly, bacteria and mould on air conditioner filter screens and radiating fins can be rapidly killed, a layer of sterilizing film is formed on the cleaned part, and growth and reproduction of bacteria and mould can be effectively prevented.

The invention discloses a method for producing cattle and sheep feed by fermenting zenia insignis leaves. The method comprises the specific steps of: firstly drying the picked zenia insignis leaves or collected autumn natural fallen leaves in the sun, processing and crushing into zenia insignis leaf powder, adding water into the zenia insignis leaf powder according to the weight ratio of 1:1, adding sugarcane tail ends, traditional Chinese medicines, molasses, fresh filtered mud, trace element and compound bacterium according to weight parts, putting the materials into a fermentation room for fermentation, controlling the temperature of the fermentation room to be 40-55 DEG C, fermenting for 3-5 days, obtaining fermented feed, drying and obtaining the cattle and sheep feed. The cattle and sheep feed produced by fermenting the zenia insignis leaves has the advantages that the amount of the protein feed can be effectively reduced, so that the total cost of feeding is greatly reduced; due to addition of the Chinese herbal medicines, the immunity of cattle and sheep can be improved and the effects of treating diseases and preventing diseases are achieved.

The invention discloses a traditional Chinese medicinal composition for preventing and treating parasites of fish. The traditional Chinese medicinal composition comprises, by weight, 40-60 parts of artemisinin, 10-20 parts of garlic, 10-12 parts of soapberry fruits, 10-12 parts of eucalyptus robusta smith, 10-12 parts of reed rhizomes, 10-12 parts of cyrtomium fortune, 8-10 parts of pumpkin seeds, 8-10 parts of wormwood, 8-10 parts of cocklebur fruits, 6-8 parts of sticktight, 8-10 parts of pine needle meal, 8-10 parts of mulberry stem powder, 10-20 parts of molasses, 0.1-0.3 part of compound bacteria, 0.3-0.5 part of citric acid and 40-60 parts of water. The traditional Chinese medicinal composition has the advantages that multiple traditional Chinese medicinal herbs are selected, the citric acid is added for palatability adjustment, anti-stress ability and immunity of fish bodies are improved through compatible and synergistic effect, parasitic diseases of the fish under high-density cultivation conditions are effectively prevented, survival rate of the fish is increased, and production level and economic benefit are improved.

The invention relates to a method for producing a cattle / sheep feed from waste sisal hemp residues. The feed is produced from the following raw materials in parts by weight: 100 to 150 parts of waste sisal hemp residues, 50 to 100 parts of sugarcane tail tips, 10 to 20 parts of fresh filtered sludge and 0.1 to 0.5 part of compound bacteria. The production method comprises the following steps: adding water into the waste sisal hemp residues generated in a processing plant in a mechanical pressing manner according to the weight ratio of 1 to 1 and adding the sugarcane tail tips, the fresh filtered sludge and the compound bacteria in parts by weight to obtain a mixture; putting the mixture into a fermentation chamber for fermenting for 4 to 8 days under the condition that the temperature of the fermentation chamber is controlled within 30 DEG C to 50 DEG C so as to obtain a fermented feed; and drying the fermented feed so as to obtain the cattle / sheep feed. According to the cattle / sheep feed produced from the waste sisal hemp residues, the consumption of effective protein feeds can be reduced, so that the total cost of the feed is greatly reduced. The finished product cattle / sheep feed obtained in a fermenting manner is good in colour and lustre, rich in nutrition, fragrant in smell and excellent in taste, and is very suitable for cattle and sheep.

The invention discloses fish feed. The fish feed comprises, by weight, 80-100 parts of pasture, 30-40 parts of fruit waste, 20-30 parts of malt, 6-8 parts of cottonrose hibiscus leaves, 6-8 parts of knoxia root, 6-8 parts of albizia flower, 4-6 parts of centella, 4-6 parts of rhizoma phragmitis, 4-6 parts of fragrant bulbophyllum, 4-6 parts of pericarpium citri reticulatae viride, 4-6 parts of sticktight, 12-14 parts of pine needle meal, 12-14 parts of mulberry stem powder, 10-20 parts of fresh filter mud, 0.5-0.7 part of biological enzymes, 3-8 parts of molasses, 0.5-0.7 part of citric acid and 40-60 parts of water. The fish feed takes the pasture and the fruit waste as the main raw materials; meanwhile, diversified Chinese herbal medicines are added, and the molasses and the citric acid are supplemented for adjusting palatability; and through the synergistic effect of compatibility of medicines, the anti-stress capability and resistibility of fish organisms are improved, the phenomenon that fishes get illness in the condition of high-density feeding is effectively prevented, the survival rate of the fishes is improved, and the production level and economic benefits are increased.

The invention relates to a mildewproof preservative film. The mildewproof preservative film comprises a base layer and a mildewproof preservative coating arranged on the base layer, wherein the base layer is a biodegradable plastic thin film; the raw materials of the mildewproof preservative coating comprise the following components in percentages by weight: 30% to 60% of main ingredients, 0.1% to10% of a natural extract mold inhibitor and 30% to 65% of a solvent; the main ingredients comprise at least one of modified starch, water-soluble chitosan, an agar modifier, modified rosin and rosinderivatives; and the solvent comprises water and / or ethyl alcohol. The mildewproof preservative film has preferable effects of water and oxygen blocking performance and mildewproof effect, and can bedegraded under a microbial action in nature, so that the mildewproof preservative film is free of pollution to the environment.

The invention discLoses a method for recycLing kitchen waste, which comprises the foLLowing steps: 1) kitchen waste coLLection and sorting; 2) kitchen waste treatment: the soLid kitchen waste, ammoniated cassava residue and fruit skin are pLaced in a puLverizer, a microbiaL agent M is added, and fermentation is carries out for 5-7 days to obtain a materiaL A; Liquid kitchen waste and red puLverized materiaL are uniformLy mixed, a microbiaL agent N is added, and fermentation is carried out for 2-3 days to obtain a materiaL B; 3) fLy maggots cuLture: the materiaL A, the materiaL B and fish meaLwith a mass ratio of 5-10, 2-3 and 1-2 respectiveLy are mixed homogeneousLy to obtain a materiaL C, the materiaL C is Laid on an egg coLLecting board to coLLect fLy eggs, and the materiaL A and the fLy eggs are added, hatching, continuous breeding, and the fLy maggots and fLy maggots excrement are separated to obtain fLy maggot aduLts; and 4) Earthworm aquacuLture: earthworms are breed with the materiaL A that breeds maggots. The method has the characteristics of high materiaL utiLization rate and deLaying earthworm germpLasm degradation.

The invention provides an arm frame type trawler and belongs to the technical field of ships. The arm frame type trawler comprises a hull structure and two trawling arm frames. The lower ends of the two trawling arm frames are hinged to the two sides of the hull structure. Floating mechanisms are arranged at the tops of the trawling arm frames. Each floating mechanism comprises a floating box. A hydraulic lifting platform is arranged on the lower side face of each floating box. A lifting board is arranged at the lower end of each hydraulic lifting platform. First through holes are formed in the periphery of each lifting board. Sliding rods are inserted in the first through holes. Baffles are arranged at the upper ends of the sliding rods. The size of each baffle is larger than that of eachfirst through hole. The lower ends of the sliding rods penetrate through the first through holes and are hinged to floating bodies. The sliding rods are provided with reset springs. The reset springsare located between the baffles and the lifting boards. An air bag is arranged between each floating body and the corresponding lifting board. An electric air pump is arranged on the upper side faceof each floating box. An exhaust pipe of each electric air pump communicates with the corresponding air bag. The floating mechanisms in the arm frame type trawler achieve a good supporting effect in the trawler trawling operation process, and the ship navigation stability is improved.

The invention relates to a fish feed produced from cassava starch factory waste residues and orange wastes, and a preparation method thereof. The fish feed comprises, by weight, 60-80 parts of cassava starch factory waste residues, 30-40 parts of orange wastes, 20-30 parts of beer residues, 10-15 parts of bean dregs, 15-20 parts of rice bran, 8-10 parts of soybean meal, 6-8 parts of argy wormwood, 6-8 parts of honeysuckle flower, 2-4 parts of Sowthistleleaf Tasselflower, 2-4 parts of isatis root, 2-4 parts of Oroxylum indicum, 8-10 parts of pine needle powder, 22-24 parts of waste sugarcane molasses, 1.6-1.8 parts of composite bacteria and 0.3-0.5 parts of citric acid. The feed is obtained through combined fermentation of multiple raw materials, the citric acid is used to adjust the palatability, and the argy wormwood, honeysuckle flower, Sowthistleleaf Tasselflower, isatis root and Oroxylum indicum are added and have synergism, so the stress resistance and the resistibility of fish bodies are improved, the disease incidence of fish under a high-density breeding condition is improved, the survival rate of the fish is improved, and the production level and the economic benefit are increased.

The invention relates to a fish feed prepared by adopting arabian jasmine flower residues as raw materials, and a preparation method thereof. The fish feed is prepared from the following raw materials in parts by weight: 80 to 100 parts of the arabian jasmine flower residues, 30 to 40 parts of forage grasses, 20 to 30 parts of beer residues, 10 to 15 parts of corn flours, 15 to 20 parts of corn grits, 8 to 10 parts of peanut brans, 6 to 8 parts of coffee senna seed, 6 to 8 parts of common andrographis herb, 2 to 4 parts of fragrant bulbophyllum, 2 to 4 parts of herba houttuyniae, 2 to 4 parts of herb of spanishneedles, 8 to 10 parts of pine needle meal, 10 to 20 parts of sugar cane molasses, 0.8 to 1.2 parts of compound bacteria, 0.5 to 0.7 part of citric acid, and 40 to 60 parts of water. The feed adopts the arabian jasmine flower residues as the raw materials, the arabian jasmine flower residues are fermented, the citric acid is assisted for adjusting the palatability, and meanwhile, Chinese herbal medicines are added, so that the anti-stress capability and the immunity of fishes are improved through compatibility and synergistic effect, the probability that the fishes getting sick under a high-density raising condition can be reduced, the survival rate of the fishes is improved, and the production level and the economic benefit are improved.

The invention discloses a weak stimulation tracheal catheter fixed type oropharynx airway. The oropharynx airway is made of medical silica-gel or medical elastomer materials with Shore hardness being 50-100, and bacteria resistance and bacteriostasis treatment is conducted by adopting silver ions or titanium dioxide or hydroxyapatite or bioactive molecules, or adopting the layer-by-layer electrostatic self-assembling technique. The oropharynx airway comprises an oropharynx airway body; the jaw face and the lingual surface of the oropharynx airway body are separately a concave uvula support and a concave tongue support; both sides of the oropharynx airway body are arc tube chambers through a groove design; a solid supporting body is arranged in the middle of the oropharynx airway body; and a soft lip protection piece perpendicular to the oropharynx airway is arranged outside an oropharynx airway body opening. The concave uvula support and the concave tongue support are separately arranged on the jaw face and the lingual surface of the oropharynx airway body, and the oropharynx airway is made of soft materials, so that a patient easily tolerates the oropharynx airway.

The invention relates to a method for producing a chicken / duck feed from waste sisal hemp residues. The feed is produced from the following raw materials: the waste sisal hemp residues, tapioca flour, cane molasses, fish meal, vegetable protein, cypress leaves and compound bacteria, wherein the compound bacteria are composed of lactic acid bacteria and saccharomycetes according to the weight ratio of 1 to 1. The production method comprises the following steps: adding water into the waste sisal hemp residues generated in a processing plant in a mechanical pressing manner according to the weight ratio of 1 to 1 and adding the tapioca flour and the compound bacteria in parts by weight so as to obtain a mixture; putting the mixture into a fermentation chamber for fermenting for 5 to 15 days under the condition that the temperature of the fermentation chamber is controlled within 30 DEG C to 50 DEG C so as to obtain a fermented feed; and adding the cane molasses, the fish meal, the vegetable protein and the cypress leaves in parts by weight into the fermented feed, evenly mixing and drying so as to obtain the chicken / duck feed. According to the chicken / duck feed produced from the waste sisal hemp residues, the consumption of an effective protein feed can be reduced, so that the total cost of the feed is greatly reduced. The finished product chicken / duck feed obtained in a fermenting manner is good in colour and lustre, rich in nutrition, fragrant in smell and excellent in taste, and is very suitable for chicken and ducks.

The invention discloses a composite chitosan coating film for poultry egg preservation as well as a preparation method and application thereof, and belongs to the technical field of coating film preservation. The preparation method of the composite chitosan coating film for poultry egg preservation comprises the following steps of: 1, preparing nano-silver sol; 2, preparing a nanosilver-titanium dioxide composite colloid; 3, preparing a chitosan coating film; and 4, preparing the composite chitosan coating film for poultry egg preservation. The invention further discloses the composite chitosan coating film for poultry egg preservation, which is obtained by adopting the preparation method, and the application of the composite chitosan coating film. The composite chitosan coating film obtained by adopting the preparation method can be used for performing cleaning and degerming, preventing invasion of bacteria and oxygen, preventing loss of water and CO2 in eggs, maintaining the pH valueof protein to be less than 7, inhibiting respiration in the eggs, preventing growth and propagation of aerobic bacteria, delaying egg white hydration, inhibiting yolk dispersion and prolonging the shelf life of fresh poultry eggs.

The invention discloses a method for producing a feed for chickens and ducks by using yellow mealworm excrement. The feed is prepared from the following raw materials in parts by weight: 100-120 parts of yellow mealworm excrement, 40-60 parts of sugarcane tail tips, 10-12 parts of traditional Chinese medicines, 20-30 parts of fresh lime sludge and 0.4-0.6 part of compound bacteria, wherein the compound bacteria consists of lactic acid bacteria and yeast at a weight ratio is 1:1; the traditional Chinese medicines include eclipta prostrata, areca-nut and acalypha australis at a weight ratio is 1:1:1. The production method of the feed comprises the following steps: adding water into the yellow mealworm excrement at a weight ratio of 1:1; adding the sugarcane tail tips, the traditional Chinese medicines, the fresh filter sludge and the compound bacteria in parts by weight; fermenting in a fermentation room at the temperature of 35 to 55 DEG C for 3 to 7 days to obtain a fermented feed; and drying to obtain the feed for the chickens and ducks. The feed for the chickens and ducks has the advantages of reducing the amount of a used effective protein feed so that the total feeding cost is greatly lowered, enhancing the immunity of the chickens and ducks by adding Chinese herbal medicines, and playing the effects of treating and preventing diseases.

The invention provides a method for producing a pig feed from sisal dregs. The pig feed is prepared from the following raw materials: sisal dregs, a fine feed, sugar cane molasses, corn flour, a gelsmium elegans solution and composite bacteria, wherein the composite bacteria is composed of lactic acid bacteria and saccharomycetes in a weight ratio of 1:1; the fine feed is wheat bran or peanut bran. The method comprises the following production steps: adding water into the sisal dregs produced by extrusion in a source mill according to a weight ratio of 1:1, adding the composite bacteria, adding the fine feed and the corn flour at the same time to perform combined fermentation, putting the mixture in a fermentation chamber the temperature in which is 30-50 DEG C, fermenting for 4-8 days to obtain a fermented feed, adding the sugar cane molasses and the gelsmium elegans solution into the fermented feed according to parts by weight, and mixing uniformly to obtain the finished pig feed. The pig feed produced from the sisal dregs is good in color and luster, rich in nutrition, fragrant in smell and good in taste, and is very suitable for feeding pigs.

The invention belongs to the technical field of safety cabinets, in particular to a ventilation biological safety cabinet, and aims to solve the problem that diffusion of harmful suspended solids and biological aerosol cannot be prevented or reduced in time in the prior art. The ventilation biological safety cabinet comprises a cabinet body, wherein an operation reaction cavity and a storage groove are formed in the upper end and the lower end of the interior of the cabinet body, side doors are fixedly mounted on the two sides of the cabinet body, the middle upper end of one end of the cabinet body is an inclined surface, and a first purification mechanism, a drainage fan and a flow equalizing frame are sequentially and fixedly mounted in the operation reaction cavity from top to bottom. According to the invention, a negative pressure fan and a drainage fan work in sequence, so that filtered and disinfected airflow is purified through a first purification mechanism, subjected to flow speedand direction averaging through aflow equalizing frame, subjected to negative pressure adsorption through a first negative pressure adsorption plate and a second negative pressure adsorption plate, purified through a second purification mechanism in sequence, the whole airflow is discharged from top to bottom, and the possibility of secondary pollution of harmful suspended matters and biological aerosol scattered on the surface and the upper end of the substrate to an experimental sample is avoided.

The invention discloses a making method of a soft yak meat can. The method comprises the following steps: cutting yak meat into pieces, removing fascia and grease, cleaning the processed yak meat pieces, and tenderizing the cleaned yak meat pieces; soaking the tenderized yak meat pieces in bacterium-reducing liquid, and injecting salt water into the soaked yak meat pieces; mixing the injected yak meat pieces with seasoning powder for curing meat, rolling and kneading the mixture in vacuum, discharging the obtained yak meat pieces after rolling and kneading to a curing barrel, covering the curing barrel and curing the yak meat pieces at a low temperature of 0-4 DEG C until the center of each meat piece is brightly rosy in color and the surfaces of the yak meat pieces are slightly sticky; heating spice water in a saucepan to boiling, adding the cured yak meat pieces into the boiled spice water, firstly stewing the meat with big fire, then braising the yak meat pieces with slow fire to maintain a slightly boiling state; taking the yak meat pieces out when bloodshot spots in the centers of the yak meat pieces disappear; cutting the cooked yak meat pieces into granules at normal temperature, adding auxiliary materials, stir-frying the meat granules, packaging the stir-fried meat granules and performing sterilization. The bacterium-reducing processing effectively ensures the initial sanitary level of the product; the tenderizing processing can damage the muscular organization, which is helpful in extraction of salt soluble proteins; the injection of salt water can quicken the curing speed and enables the curing to be more uniform; stir-frying again enables the product to have a good taste; and sterilization can greatly prolong the shelf life of the product.

The invention relates to a purifying and filtering element for preventing breeding of microorganisms. The purifying and filtering element comprises an activated carbon fiber filtration membrane tube with a hollow filter cavity, an upper seal cover, a lower end cover, an ultrafiltration membrane shell, an ultrafiltration membrane and an activated carbon fiber filter sheet, wherein the upper seal cover is arranged at the upper end face of the activated carbon fiber filtration membrane tube; the lower end cover is arranged at the lower end face of an activated carbon fiber filtration membrane; a filter tube body extends towards the hollow filter cavity of the activated carbon fiber filtration membrane tube at the upper surface of the lower end cover above the effluent through hole; a water inlet cavity is left between the upper end face of the filter tube body and the lower end face of the upper seal cover; a stream clearance is formed between the outer lateral wall of the filter tube body and the inner lateral wall of the activated carbon fiber filtration membrane tube; a hailuo (Chinese character) net filter material is arranged inside the filter tube body; a filter net cover capable of preventing the hailuo net filter material from moving upwards is also arranged at the upper part of the filter tube body; a filter net capable of preventing the hailuo net filter material from moving downwards is arranged inside an inner cavity at the lower part of the filter tube body; the activated carbon fiber filter sheet and the ultrafiltration membrane are orderly arranged inside the ultrafiltration membrane shell from bottom to top; the upper part of the ultrafiltration membrane shell is detachably connected with the lower end cover; an outlet pipe joint is arranged at the lower part.

The invention relates to the technical field of feed production equipment, and discloses rapid activation and propagation equipment for microbial feed additives, the rapid activation and propagation equipment comprises a working bottom plate, and a first barrel is fixedly mounted on the left side of the top of the working bottom plate. According to the rapid activation and propagation equipment for the microbial feed additive, through the arrangement of a lifting ring, second conical teeth rotate along with rotation of a rotating rod, second meshing teeth rotate through meshing, a threaded rod rotates, and the lifting ring can move up and down, so that brushes on the two sides are driven to wash the inner wall of a second barrel; a nutrient solution can be effectively prevented from being attached to the inner wall of the device, only clear water needs to be added into the device, the cleaning process is very convenient, a top cover at the upper end is moved upwards by controlling an electric push rod, a stirring mechanism located in a second barrel is moved out, workers can conveniently clean the stirring mechanism, the whole cleaning process is very convenient, labor can be greatly saved, the cleaning effect is ideal, and the use requirements of people can be better met.

The present invention discloses a cattle feed containing Chinese herbs, wherein the raw materials comprise, by weight, 100-150 parts of bean residue, 40-50 parts of peanut bran, 20-30 parts of pineapple skin, 20-30 parts of corn cob, 20-30 parts of bagasse, 10-20 parts of dandelion, 10-20 parts of folium hibisci mutabilis, 10-20 parts of eucalyptus robusta smith, 8-12 parts of albizzia julibrissin durazz, 8-12 parts of jasmine, 8-12 parts of lily, 6-8 parts of dichondra repens forst, 6-8 parts of rhizoma phragmitis, 6-8 parts of coix seed, 4-6 parts of emilia sonchifolia (l.) dc, 4-6 parts of bidens pilosa l, 10-20 parts of pine needle powder, 10-20 parts of mulberry straw powder, 10-20 parts of dried lees powder, 20-30 parts of fresh filtration mud, 0.8-1.2 parts of compound bacteria, and 0.6-0.8 part of citric acid. According to the present invention, the cattle feed has advantages of high nutrition value, low cost, good palatability, high nutrition substance digestion rate, beef cattle incidence reducing, beef cattle yield and quality improving, and farmer economic benefit increasing.

The invention discloses a feed additive capable of preventing and treating diseases in the liver and the gallbladder of fish. The feed additive is prepared from the following raw materials in parts by weight: 40-60 parts of bagasse, 10-20 parts of fruit peel, 12-15 parts of powder of radix et rhizoma rhei, radix scutellariae and cortex phellodendri, 12-15 parts of licorice roots, 12-15 parts of artemisinin, 10-12 parts of roots or stems of cyclea hypoglauca, 10-12 parts of duchesnea indica, 10-12 parts of cassia occidentalis, 10-12 parts of serrate rabdosia herb, 8-10 parts of dried rehamnnia roots, 8-10 parts of bulbophyllum ambrosia, 8-10 parts of green tangerine peel, 6-8 parts of bidens pilosa, 8-10 parts of pine needle meal, 8-10 parts of mulberry twig powder, 10-20 parts of fresh filter mud, 0.1-0.3 part of compound microbes, 2-5 parts of herba hyperici japonici, 0.3-0.5 part of citric acid and 40-60 parts of water. According to the additive disclosed by the invention, the bagasse and the fruit peel are used as main raw materials, besides, varied Chinese herbal medicines are added, the citric acid is used for assisting in regulating palatability, and through compatibility and synergistic action, the stress resistance and the immunity of fish organisms are improved, the occurrence of liver-gallbladder syndromes of the fish under a high-density raising condition is effectively avoided, the survival rate of the fish is increased, and the production level and the economic benefits are increased.