64 results about "Artificial foods" patented technology

The invention relates to a method for culturing river crabs, in particular to a method, by which the river crabs cultured in a pond or other water areas and become large-size commercial crabs. The method is characterized in that the method comprises the steps of purchasing crab larvae; culturing the crab larvae: the disinfection of the crab larvae incubating pond, the arrangement of the escape preventing fence, fertilization, water injection to the crab larvae pond, the float grass cultivation, the stocking of the crab larva, and the feeding of artificial food; the over-winter of first instar crab; the culturing of the second instar crab: the disinfection of the crab larvae incubating pond, the arrangement of the escape preventing fence, fertilization, water injection to the crab larvae pond, the float grass cultivation, the feeding of the first instar crab, and the feeding of artificial food; controlling the gonad development speed of the second instar crab: the artificial over-summer and the natural over-winter of the second instar crab; culturing the large-size river crabs: the feeding and management for the second instar crab, the artificial induction to the river crabs for exuviation and growth. The method is in favor of increasing the culture scale, the culturing yield and the economic benefit through controlling the gonad development speed of the second instar crabs and applying the technologies of culturing the large-size river crabs.

The invention relates to an indoor high-density cultivation method of artemia. Filtered seawater is injected into a culture pond to form artificial rich water; in the morning, artemia eggs are treated and then are rapidly placed in the culture pond for hatch, and the illumination intensity is kept at 30-60 mu mol / m<2> / s; artemia artificial food is put in the morning when artemia larvae are hatched; in the culturing process, the dissolved oxygen of a water body is kept at above 0.7mg / L; a biology control method is used for regulating and controlling water quality and adjusting the body color of the artemia; after 10-15 days of cultivation, the artemia is harvested according to the need of market. An indoor cultivation mode is adopted, outdoor severe weather is effectively avoided, better cultivation water environment can be kept, the rapid growth of the artemia is effectively improved by the regulation and control on the water quality and the water color and the preparation and treatment of the artificial food, the quality and output of the artemia are very obviously improved and increased, the food calling property is enhanced, and guarantee is provided for the development of marine aquaculture industry.

The invention belongs to the smoke-free tobacco field, particularly relates to a gum base type smoke-free tobacco product and a preparation method and a purpose thereof. <{EN2}>The invention provides a gum base type smoke-free tobacco product, and the raw materials comprise, by amounts by weight, the following ingredients: 20-55 parts of gum base; 0.005-10 parts of tobacco powder and / or tobacco extract; 0-5 parts of pharmacy; 30-60 parts of sweetener; 0.005-15 parts of fragrance agent; 0-2 parts of sour additive; 0.1-2 parts of emulsifier; 0-3 parts of refrigerant; 0-2 parts of pH conditioning agent; 0-5 parts of humectants; 0-3 parts of filler; 0.3-6 parts of softener; 0-3 parts of anti-oxidant; and 0-0.5 parts of artificial food coloring. <{EN3}>The gum base type smoke-free tobacco product has the advantages that a consumer is physiologically satisfied while chewing the product; the product tastes good and has a certain heat-clearing and throat-moistening effect; environment tobacco flue gas pollution caused by traditional cigarettes can be avoided; and the product can be used to replace the traditional cigarette in non0smoking places like a public place.

The invention relates to a method for culturing river crabs by utilizing the early breeding crab larvae, in particular to a method, by which the river crabs are cultured in a pond or other water areas and become large-size commercial crabs. The method is characterized in that the method comprises the steps of (1) purchasing the early breeding crab larvae: the selection of the crab larvae purchasing date, the selection of the crab larvae quality, and the transportation of the crab larvae; (2) culturing the early culturing crab larvae: the disinfection of the culture pond, the arrangement of the escape preventing fence, fertilization, water injection to the crab larvae pond, the cultivation of water grass, the stocking of the early breeding crab larva, and the feeding of artificial food; (3) controlling the gonad development speed of crabs: the crabs getting through the summer artificially, the crabs getting through the winter and grow naturally, the stocking of the crabs, the management of the crab larvae getting through the winter, the promotion of the river crab for exuviation and growth, and the culture and the harvesting of the river crab. The crabs, the gonad of which is immature are cultured by utilizing the early breeding crab larvae produced at the beginning of December to the end of the April in the ensuing year; the growing period of the early breeding crab larvae can be prolonged, and the sexual precocity can not happen; through the artificial over-summer and the natural over-winter technologies, the early breeding crab larvae can become the crabs for the river crab culture; the crabs cultured by utilizing the early breeding crab larva can be cultured into the grown crab with the specification being 200 to 400g for each.

The invention relates to insect forage and a preparation method thereof. The insect forage uses jelly powder, carrageenan, agar powder, fructose and water as basic raw materials, and combining the raw materials to nutrition inertia material by a certain proportioning, so that the forage has certain hardness, has good water retention performance, and can satisfy water-intake amount for insect. In addition, because the insect forage is not added with any antiseptic, the insect forage does not influence growth of insect. The preparation method includes steps: drily mixing the fructose, jelly powder, carrageenan and a small amount of agar powder, adding water to the mixture under stirring condition until percentage content of water is 60%-75%, continuously stirring until solution is uniform, placing and soaking for 3-5 hours, heating the solution to completely dissolve the mixture, adding a edible antifoaming agent, adding an amount of citric acid and sodium citrate after filtering, in addition adding proper amount of fruit essence and artificial food coloring, and obtaining the insect forage after filling and sterilizing.

The invention discloses an artificial pairing and breeding method of Platysternon megacephalum. The method comprises the selection of species sources, domestication before pairing, setting of a breeding pond, artificial pairing, collection and hatching of turtle eggs. The method fully considers the ecological and biological characteristics of the Platysternon megacephalum, including the behavior, feeding habit, habitat, and breeding ecology. The main problems in artificial pairing and captive breeding of the Platysternon megacephalum can be effectively solved, including the breeding turtle selection, pairing, pairing stage selection, sex ratio, density, artificial food, setting of the reproduction and hatching environments, the occurrence of disabilities and fatal events during the pairing and mating process is significantly reduced; the egg laying rate of female turtles and the hatching rate of turtle eggs are both significantly improved. Artificial high-efficiency breeding of the Playsternon megacephalum is realized, and healthy turtle hatchlings can be obtained.

The invention discloses a principle of enabling forests to grow quickly, provides an engineering design scheme, finds a construction flow which is low in cost and is simple and convenient, and relates to greening of urban and rural forests, economic forests and gardens, in particular to an engineering technology which adopts simple construction flow, adopts materials (most materials are harmless building and organic garbage) capable of being utilized on site, is low in cost and has obvious effects. In a manner of punching, digging holes, ditching and burying leaky pipes, artificial food tanks, water tanks and oxygen bars are designed for plant root systems; the root systems and tree bodies on the ground are rapidly increased, and the forests also grow at a high speed. A construction method comprises the construction step of collecting building garbage which is harmless for soil and the plant root systems (the building garbage can be simply processed and placed into ditches, holes and pits). The system is a permanent water, fertilizer and air supply station for the forest land; the problem of fatal bottleneck of soil hardening of the forest land is fundamentally solved; the effect of improving the increment of forest trees by over 50 percent (even the volume of forest tree growth is redoubled) is implemented.

The invention discloses a method for breeding a sipunculus nudus parent. Artificial breeding of sipunculus nudus is high in cost, very instable in effect and significantly relevant to poor artificial spawning effect, high mortality and inconsistent egg laying quality of the sipunculus nudus parent. Meanwhile, mismatch of the yield is caused due to excessive concentration of egg laying in induced spawning, leading to resource waste. By adopting the measures of building of a sipunculus nudus parent breeding pond, indoor artificial food culture, maturing and breeding management, disease control and prevention and artificial control of egg laying, the mortality is lowered to 7-12 percent within 40 days of artificial indoor parent maturing and egg laying breeding, the single yield of an individual parent of 20g is 50,000-70,000 eggs, the metamosphsis rate of hatched larvae is 13-86 percent, and artificial control of egg laying can be performed according to the production capacity. By adopting the method, the source and controllability of fertilized eggs are realized in plant artificial breeding and selective breeding of the sipunculus nudus, the egg laying time of the parent is prolonged, and the breeding cost is saved.

The invention relates to the technical field of aquaculture, in particular to a large-scale artificial propagation method for mackerels. The method comprises the steps of parent fish domestication, parent fish intensifying culture, parent fish reproduction, egg laying and incubation, fry breeding and management, fry grading and sub-pool management, fry selling and the like. Parent fishes are subjected to scientific management and gradual domestication, and the problem that the mackerels die instantly leaving water is solved. By means of intensifying culture and procreation regulation and control on the parent fishes, enough mature parent fishes and high-quality oosperms are provided for large-scale fry breeding; by means of scientific fry breeding management, fry breeding water is comprehensively treated, the fry breeding process is regulated and controlled, the mackerels are fed with fry initial bait, safe biological feed and special artificial food stepwise in proportion, grading andsub-pool management is adopted, and the fry breeding survival rate and the fry quality are improved. According to the large-scale artificial propagation method, the key technology of large-scale artificial breeding of the mackerels is solved, the fry breeding survival rate is high, an efficient and new fry breeding technology and a new mode are provided for the industry, and efficient and healthydevelopment of high-end seawater fish breeding of China is promoted.

The invention discloses a smell removal liquid and a preparation method thereof. The smell removal liquid comprises the following components by weight fraction: 70-80% of deionized water, 1-2% of artificial food colourant, 2-3% of emulsifier and 15-26% of plant extract. The method comprises the following steps: adding the deionized water in an enclosing reaction vessel, adding the plant extract, controlling the temperature of the reaction vessel being 20-28 DEG C, stirring for 2-3 hours, adding the artificial food colourant and the emulsifier in order, continuously stirring for 2-3 hours, and standing for 20 minutes and filtering to obtain the product. The smell removal liquid has the beneficial effects that the smell removal liquid is environmentally friendly and nontoxic, the smell removal efficiency can reach as high as 80-99.9%. The smell removal liquid is capable of removing a plurality of organic or inorganic exhaust gas, such as ketones, phenols, aldehydes, alcohols gas and hydrogen sulfide, fluoride, nitrogen oxide and trimethylamine. In addition, the preparation process has the advantages of simple and controllable process as well as low cost.

The invention discloses a honeysuckle flower toothpaste and a preparation method thereof, which belongs to the technical field of toothpaste. The honeysuckle flower toothpaste is prepared by silica, carragheenan, xanthan gum, sorbitol, sodium dodecyl sulfate, menthol, sodium benzoate, essential oil, water-soluble artificial food coloring, deionized water and a honeysuckle flower extract product. The toothpaste is prepared by the honeysuckle flower extract, the honeysuckle flower essential oil and sodium benzoate, three substrates have good synergism, can enlarge antibiosis, antiviral and bacteriostasis effects of honeysuckle flower, and have good efficacy for clearing heat to decrease internal heat, cleaning tooth and refreshing breath.

The invention relates to a grosvenor momordica fruit juice fermented by lactic acid and a preparation method thereof, belongs to the technical field of food and beverage processing and relates to a method for preparing a fermented fruit juice from a grosvenor momordica fruit raw material and a natural lactic acid beverage obtained by the method. The preparation method utilizes a series of lactic acid composite bacteria. The produced fermented fruit juice has low sugar content, does not contain an artificial food additive, is rich in nutrients, can be absorbed easily and has a good taste.

The invention discloses fruit salad. Every 100g of the fruit salad is mainly made from the following ingredients: 10 to 20g of white granulated sugar, 10 to 20g of fruit dices, 1 to 5g of milk powder, 0.5 to 1.2g of jelling agents, 0.2 to 0.5g of acidity regulators, 0.04 to 0.2g of edible essences, and the balance of water. According to the technical scheme, the fruit salad is a fruit jelly product containing fruit dices and is mainly prepared form white granulated sugar, jelling agents, milk powders and fruit dices, is free of artificial food colors or preservatives and harmless to user's health. Besides, since natural materials such as the fruit dices, milk powder which have high nutritional value are used as raw materials, the fruit salad has high nutritional value; moreover the fruit salad product has more real color and more natural fragrance by virtue of the natural color and fragrance of fruits.

The invention relates to an artificial food casing comprising a marking with a traceability code, wherein the marking comprises an ultraviolet-detectable component.

Animal feed compositions comprising amounts of protein, carbohydrate, fat and a functional ingredient for preventing hairball formation are provided. The functional ingredient comprises an electrostatically charge ingredient, preferably selected from the group consisting of electrostatically charged proteins, amino acids, conjugated proteins, dipeptides, multipeptides, protein colloids, enzymes, protein hydrolysates, natural and artificial food additives, flavorings, seasonings, and mixtures thereof.

The present invention relates to a method for preparing moon cakes capable of relieving summer-heat. The preparation materials comprise: 400-600 grams of powdered sugar, 40-60 grams of syrup, 10-20 grams of lemon juice, 190-310 grams of white oil, 40-60 grams of gel slices, 800-1200 grams of ice skin powder, 280-400 grams of purified water, artificial food coloring, 400-600 grams of mung beans, 1-2 grams of peppermint essential oil and 700-800 grams of white lotus-nut paste. The ice skin moon cake technology and the fondant technology are combined, the traditional moon cake making technology is improved, and expiration dates of the moon cakes are largely prolonged. In addition, internal environment of a human body is disturbed due to the fact that a lot of mineral matters and vitamins are lost due to perspiration caused by high temperature in summer, the moon cakes are rich in inorganic salt and vitamin, lost nutrients can be supplied timely, and the therapeutic effect of clearing summer-heat is achieved. Anger, hysteria and fear conditions can be appeased due to refreshing property of peppermint, spirit can be boosted, feeling is comfortable, and the moon cakes have the unique therapeutic effect of relieving body and mind.

The invention discloses a method for quickly inducing formation of pearl sacs of pearl mussels and promoting pearl growth. The method comprises the following steps of: a) selecting pearl mussels at two years old to slice or nucleus insertion operation; b) adding rare earth element cerium into aquatic water of the pearl mussels in a post-operative recuperation period; c) feeding artificial foods into the aquatic water containing cerium everyday; and d) putting the pearl mussels that are treated in 30-60 days in the aquatic water containing cerium in natural water for conventional stocking. The method disclosed by the invention can be used for remarkably inducing quick formation of pearl sacs of hyriopsis cumingii after slice or nucleus insertion operation and can be used for remarkably promoting secretion and deposition of the pearl sacs of hyriopsis cumingii after slice or nucleus insertion operation, so that the growth of the pearls is quickly promoted, and the glossiness of the pearls is good, and the quality and output of the pearls are remarkably improved.

The invention discloses a preparation method of a moisture-proof traditional Chinese medicine coated film, which relates to a coating technology of the traditional Chinese medicine and belongs to the medicinal preparation field. The moisture-proof traditional Chinese medicine coated film comprises the following components: 30-40 parts of hydroxypropyl methyl cellulose, 5-8 parts of triethyl citrate, 6-10 parts of xylitol, 4-8 parts of castor oil, 4-8 parts of tween-80, 14-18 parts of dextrin, 6-10 parts of aerosol, 6-10 parts of zein, 5-10 parts of 1% of artificial food coloring solution, 350-420 parts of distilled water (40-50 DEG C) and balance of ethanol with 95% of concentration; wherein weight unit of solid is gram, and volume unit of liquid is milliliter. The moisture-proof traditional Chinese medicine coated film has the beneficial effect of stable chemical property of a film forming substance, inertia to an enzyme system, no physiological toxicity and no usage of cane sugar; the coated film has the advantages of moisture resistance, heat resistance, cold resistance and abrasion resistance which are better than that of the sugar coated tablets, so that the stability of the coated film is increased, and storage period is prolonged.

To provide an imaging device for capturing infrared images capable of accurately counting, even by computer, etc., "minute particles that have not been finely pulverized or mashed" by irradiating infrared light during image capture on to an artificial food mass that is the imaging subject as well as capturing using the imaging device an image of infrared light that passes through the artificial food mass. An imaging device for capturing images of an artificial food mass, which is the imaging subject and contains light-permeable fine particles, on to a substrate with infrared light blocking properties, comprises an image capture means for capturing images of the imaging subject from one direction and an infrared light source that irradiates infrared light on to the imaging subject from another side of the imaging subject. The image capture means has a visible light elimination means to prevent visible light being received and captures images of the imaging subject while infrared light is being irradiated on the imaging subject by the infrared light source, and the imaging subject is captured through the image capture means.

The invention discloses a method for domesticating wasps, which comprises the following steps: selecting well-developed drones and females among captured wasps in September every year for rejuvenation and domestication; pairing the drones and females at a ratio of 1:1 every October The female bee is put into a greenhouse for natural mating; C, the mated female bee is put into a cage to impel it to enter the semi-hibernation period in advance; every November, the queen bee is moved into the overwintering storage box for artificial overwintering; the second year 3 month, when the temperature rises above 15°C, after the queen bee recovers, move it into the cage, and replenish food artificially in time for artificial rejuvenation; from April to May of the next year, put each queen bee into the prepared beehive respectively, and let the queen bee recover. The queen bee builds a nest and lays eggs; in May of the second year, the obtained hive bee colony is naturally stocked until September to harvest adult bees and bee pupae. Compared with the prior art, the present invention can solve the problem that the existing wasp products are obtained by picking wild wasp nests and easily destroying the ecological environment.

The invention specifically relates to a coconut-glutinous rice cake and a preparation method thereof, belonging to the field of candy processing. A traditional preparation method for a coconut-glutinous rice cake comprises the following steps: crushing glutinous rice, cooking the crushed glutinous rice on a high-temperature fire, blending white sugar and the cooked glutinous rice, attaching the obtained mixture with desiccated coconut and then carrying out cutting; and the prepared coconut-glutinous rice cake has rough appearance and taste and poor elasticity and flavor, is prone to deformation and is not convenient to preserve and carry. To overcome the above-mentioned disadvantages, the invention provides a coconut-glutinous rice cake prepared from 17.4 to 19.4% of white granulated sugar, 72.6 to 74.6% of glucose syrup, 3.3 to 5.3% of desiccated coconut, 1.4 to 1.8% of carrageenan, 0.02 to 0.04% of gelatin, 1.2 to 2.87% of coconut powder and 0.01 to 0.06% of artificial food coloring. Compared with the traditional coconut-glutinous rice cake, the coconut-glutinous rice cake prepared in the invention is rich in elasticity, sweet but not greasy, slippery and tasty, has smooth and fine appearance and is not prone to deformation; and after packaging, the coconut-glutinous rice cake prepared in the invention is convenient to carry and preserve.

The invention discloses an automatic beverage selling machine with a pattern printing function. The automatic beverage selling machine comprises a chassis, a control system and an automatic coffee making component arranged in the chassis, wherein the automatic coffee making component comprises a bean milling mechanism and a brewing mechanism; a 3D printing mechanism, an automatic cupping mechanism and a cup conveying mechanism are also arranged in the chassis; the position of the automatic cupping mechanism is corresponding to the position of the brewing mechanism; the cup conveying mechanism is located between the brewing mechanism and the 3D printing mechanism; and the control system is used for respectively controlling the automatic cupping mechanism to drop the cup onto an appointed position, controlling the automatic coffee making component to make the coffee into the cup, controlling the cup conveying mechanism to convey the cup to the corresponding position on the 3D printing mechanism and controlling the 3D printing mechanism to print an artificial food material into a pattern on the coffee surface. According to the invention, the accuracy of pattern printing is effectively increased, the pattern is more novel and timely, the prepared beverage is more attractive and individual, the relative enterprise and individuals can be more effectively served, the timeliness is increased and the energy consumption is reduced.

The invention discloses hirudo artificial food and a preparation method thereof. The artificial food is prepared from the following raw materials in parts by weight: 30-60 parts of pig blood, 50-80 parts of distilled water, 0.01-0.3 part of sodium chloride, 0.5-1.5 parts of plasma protein powder, 0.01-0.1 part of yeast cell wall, 0.01-2 parts of enzyme preparation, 0.05-0.5 part of glycine, 0.05-0.5 part of glutamic acid, 0.05-0.5 part of aspartic acid, 0.1-1.4 parts of cystine, 0.01-0.1 part of inositol, and 0.5-1 part of compound premix. The hirudo artificial food disclosed by the inventionis safe and environment-friendly in raw material, eliminates the medicine residue of the Hirudo nipponica, and improves the quality of the hirudo medicinal material; a young hirudo is healthy and active in growth by use of a blood sausage and blood clot feeding method, the production cost is low, the biosafety coefficient is high, the young hirudo is easy to digest and absorb after feeding the fodder, and the industrial large-scale breeding is facilitated.

This invention is designed to attract wildlife by simulating a real food product that attracts them. Currently, there are other methods of attracting wildlife, but this invention allows the user to attract wildlife without using real food, as it is illegal in some states to use real food as a wildlife attractant. Some users may find it beneficial because unlike real food, it will not decompose, and cannot be ingested; therefore it could last indefinitely and be used over and over again. This would make this a cost effective means of attracting wildlife.

The invention discloses a sandwiching cream which is prepared from the following raw materials in parts by weight: 20-70 parts of cocoa butter replacer, 0-30 parts of margarine, 0-20 parts of plant oil, 10-40 parts of white granulated sugar, 10-20 parts of glucose powder, 5-30 parts of maltodextrin, 5-20 parts of whole milk powder, 0.2-1.5 parts of table salt, 0.2-0.5 part of milk flavor, 0.2-0.5 part of cream flavor, and 0-0.3 part of an artificial food coloring. The prepared cream can be rapidly molded after being sandwiched, bad appearance of a product caused by overflowing of the cream is reduced, and the state after the product is sandwiched is improved; the obtained cream has relatively good melt-in-the-mouth property, and a fragrance is presented quickly; the cream contains a part of grease with low melting point, can reduce the production cost while maintaining the mouthfeel; and moreover, the obtained cream is delicate in taste, and is smooth and shiny.

The invention relates to the technical field of food processing, and concretely relates to a hawthorn fruit jelly and a production method thereof. The hawthorn fruit jelly is produced from 55-70 parts of hawthorn fruits, 10-20 parts of red dates, 15-25 parts of sugar, 10-18 parts of snake fruit, 8-16 parts of Semen Euryales powder, 5-10 parts of water chestnuts, 5-13 parts of sago flour, 8-16 parts of Radix Puerariae powder, 2-5 parts of fruits of Elaeagnus conferta Roxb., 0.1-0.3 parts of papain, 0.1-0.4 parts of Lactobacillus rhamnosus and 0.1-0.5 parts of Lactobacillus casei. The hawthorn fruit jelly has the characteristics of pure natural raw materials, no chemical antiseptics, coagulating agent or artificial food colorings, good profile, good mouthfeel and rich nutrients. The invention also provides the production method of the hawthorn fruit jelly.

The invention discloses an automatic production line for sausage type food. The automatic production line comprises a sausage conveyor line, wherein one end of the sausage conveyor line is fixedly equipped with a lifter I; one end of the lifter I is further fixedly equipped with a cooking line; one end of the cooking line is equipped with a lifter II; the lifter II is additionally designed with a turning function; one end of the lifter II is further fixedly equipped with an air-drying line; one end of the air-drying line is further fixedly equipped with a lifter III; one end of the lifter III is further fixedly equipped with a pre-cooling line; and one end of the pre-cooling line is fixedly equipped with a withdrawing rod device. According to the automatic production line for the sausage type food disclosed by the invention, industrial robots such as the sausage conveyor line, a lifting loading machine, the cooking line, the air-drying line, a pr-cooling line and the withdrawing rod device are applied on a large scale, the sausage type food can be cooked, smoked or roasted in a fully-automatic mode on the highly intelligent machine production line. The automatic production line for sausage type food improves production efficiency, so that the production quality is stable, product quantization is uniform and is more precise, labor power, material resources, financial resources and time are reduced, and artificial food pollution probability is reduced.

The invention discloses a degradable breakfast cake packaging material and a preparation method thereof. The degradable breakfast cake packaging material comprises the following raw materials (by weight): 30-60 parts of soybean hull, 15-30 parts of corn flour, 10-25 parts of sweet potato starch, 5-12 parts of fatty acid ester, 12-26 parts of polylactic acid fiber, 14-22 parts of hydroxypropyl methyl cellulose, 8-17 parts of glycerol, 3-8 parts of algin, 1-3 parts of artificial food coloring, 0.8-2.5 parts of zinc diricinoleate, 2-6 parts of glycyrrhetinic acid, 1-3 parts of zinc gluconate, 5-13 parts of carrageenan, 4-10 parts of konjac glucomannan, 1.5-6 parts of a vegetable fibre modifier, 1-5 parts of potassium sorbate, 3-8 parts of malic acid, 1-3 parts of proanthocyanidins, 9-16 parts of mannitol and 2-6 parts of a traditional Chinese medicine antibacterial agent. As the degradable breakfast cake packaging material has good degradability, environmental pollution will not be caused.

The invention belongs to the technical field of intelligent control, and discloses an intelligent canteen food selling device based on mobile communication and photoelectric induction. The device comprises a moving ordering system (ordering APP), a dinner plate sterilizer, a constant temperature food box, a constant temperature dish box, a photoelectric induction switch blade, an automatic switch blade, a dinner plate conveyor mat, an electric power control system, a linear high-speed reciprocating circulation guide rail motor, a weight induction plate, an annular conveyor belt, a light barrier and a food taking window. By means of application and popularization of the device, the labor cost can be greatly reduced, and the phenomenon that canteen recruitment is difficult in future and even at present can be solved; the problem that due to the fact that artificial food selling sanitary conditions are poor, and disorderliness exists, the eating speed is slow is solved; the time of diners is greatly saved in the ordering and food taking aspects; a traditional window food selling mode is broken through the unique shape, and the space of the canteen can be fully utilized; it is guaranteed through an insulation system that each diner can enjoy hot meals.

The invention relates to a method for culturing river crabs by utilizing the early breeding crab larvae, in particular to a method, by which the river crabs are cultured in a pond or other water areas and become large-size commercial crabs. The method is characterized in that the method comprises the steps of (1) purchasing the early breeding crab larvae: the selection of the crab larvae purchasing date, the selection of the crab larvae quality, and the transportation of the crab larvae; (2) culturing the early culturing crab larvae: the disinfection of the culture pond, the arrangement of the escape preventing fence, fertilization, water injection to the crab larvae pond, the cultivation of water grass, the stocking of the early breeding crab larva, and the feeding of artificial food; (3) controlling the gonad development speed of crabs: the crabs getting through the summer artificially, the crabs getting through the winter and grow naturally, the stocking of the crabs, the management of the crab larvae getting through the winter, the promotion of the river crab for exuviation and growth, and the culture and the harvesting of the river crab. The crabs, the gonad of which is immature are cultured by utilizing the early breeding crab larvae produced at the beginning of December to the end of the April in the ensuing year; the growing period of the early breeding crab larvae canbe prolonged, and the sexual precocity can not happen; through the artificial over-summer and the natural over-winter technologies, the early breeding crab larvae can become the crabs for the river crab culture; the crabs cultured by utilizing the early breeding crab larva can be cultured into the grown crab with the specification being 200 to 400g for each.