39 results about "Maggot" patented technology

The invention discloses an insect antibacterial peptide nutrient solution as well as a preparation method and application thereof, and belongs to the technical field of biology. Insect protein (fly maggot powder / hermetia illucens) and plant fiber (bran) are subjected to enzymolysis and then subjected to a pH gradient chelation process (5.0-7.0-8.5), metal ions (Fe < 2 + > / Mn < 2 + > / Zn < 2 + >) are added in stages for chelation, the chelation degree is larger than or equal to 91.4%, lentinan and alginate oligosaccharide are added for synergistic interaction, and finally the insect antibacterial peptide nutrient solution is obtained. Experiments prove that after the insect antibacterial peptide nutrient solution prepared by the invention is used for carrying out root irrigation treatment on plants, tomato yellow leaf curl virus or tomato spotted wilt virus can be remarkably prevented and treated, and the insect antibacterial peptide nutrient solution has high efficiency and persistence and conforms to the development direction of green plant protection.

The utility model discloses a fly maggot breeding material collecting machine head assembly device which comprises a movable guide rail plate, one end of the movable guide rail plate is connected to one end of a base through threads, the movable guide rail plate is provided with a material collecting and cleaning mechanism, and the material collecting and cleaning mechanism comprises a servo motor. The upper end of the servo motor is fixedly installed on a fixing plate, the lower end of the fixing plate is installed at the upper end of a movable guide rail plate, a lead screw is installed at the lower end of the servo motor, through the servo motor, a telescopic hydraulic cylinder and a first scraping plate, automatic cleaning work can be achieved, manual intervention is reduced, and the working efficiency is improved. A first scraper 204 can effectively scrape fly maggots or wastes accumulated in the culture tank box 102, so that the environment in the culture tank is ensured to be clean, the wastes are prevented from being accumulated to influence culture, mucus secreted by the body surfaces of the fly maggots is prevented from being attached to the surface of the culture tank, and part of the fly maggots still attached to the surface of the culture tank is reduced; and the fly maggot and waste material collecting effect is improved.

The invention belongs to the technical field of wheat breeding, and particularly relates to a wheat breeding method capable of resisting wheat stem bee pests. Aiming at occurrence and damage of wheat insect pests, the invention provides a breeding method for highly resisting wheat stem bee pests, according to the cultivated wheat strain material, the stem tube wall under the spike is obviously thickened, so that the ovulation device of female adult wheat stem bees cannot puncture the stem tube wall under the spike, and eggs cannot be injected into the wheat stem, thereby effectively achieving the insect-resistant effect; even if individual female bees successfully inject eggs, stem pith injection is slow after larvae are hatched by the eggs, before wheat is mature, stem bases cannot be injected with the eggs, broken stem loops cannot be formed, wheat stems cannot lodging, and the larvae cannot make cocoons, pupate and overwinter at the roots, so that reproduction and offspring of the wheat stem bees are blocked. The method can effectively prevent the damage of the wheat stem bees, solves the problem of prevention and control of the damage of the wheat stem bees for wheat production, effectively reduces the dependence on pesticides, and has important guiding significance for sustainable development of agriculture.

The invention discloses a ten-thousand-mu ecological cycle agricultural industrial park system based on shrimp shell fermentation and fly maggot culture, fresh shrimp shells are used as raw materials and are subjected to probiotic fermentation to serve as a fly maggot culture medium, and large-scale fly maggot culture is realized by combining a fly workshop and a fly maggot greenhouse; the method comprises the following steps: deeply processing and extracting antibacterial peptide, chitin, protein powder and fly maggot oil in fly maggots, and preparing an antibiotic-free active probiotic fresh material from fly maggot residues, culture medium residues, traditional Chinese medicine residues and rumex hanus extraction by-products; feeding ducks and fishes with fresh feed; the duck manure is subjected to biogas treatment and solid-liquid separation to serve as organic planting base fertilizer and nutrient solution, and biogas power generation is supplied to industrial parks; the radix astragali and the rumex hanus are synchronously and organically planted, the radix astragali and the rumex hanus are deeply processed, and a by-product feedback fly maggot culture medium and antibiotic-free feed are prepared. According to the method, a shrimp shell-fly maggot-livestock and poultry breeding-biogas engineering-organic planting full-closed-loop ecological cycle system is constructed, zero waste of resources and industrial scale are achieved, fish meal and broad-spectrum antibiotics are replaced with products, and the market application space is wide.

The utility model discloses a multichannel gas equivalent conveying device for insect breeding, which comprises an air blower, the output end of the air blower is fixedly connected with a first butt joint pipe, the right end of the first butt joint pipe is detachably provided with a second butt joint pipe, and the right end of the second butt joint pipe is fixedly connected with a gas equivalent distribution box. A plurality of exhaust holes are formed in the right end face of the gas equivalent distribution box, and the inner walls of the exhaust holes are fixedly connected with gas conveying pipes. By arranging an air blower, a first butt joint pipe, a second butt joint pipe and a gas equivalent distribution box, air flow entering the gas equivalent distribution box can be uniformly discharged from a plurality of exhaust holes by utilizing the work of the air blower, so that the air flow is finally conveyed to a specified position from the gas conveying pipes, and the gas outlet speeds and the gas outlet amounts of different gas conveying pipes are equal; compared with the prior art, the condition that the air outlet speed and the air outlet amount of different branch conveying pipelines are not equal is effectively avoided, so that normal growth of fly maggots is guaranteed, and convenience is provided for multi-layer large-scale breeding.

The invention belongs to the technical field of molecular biological detection, and particularly relates to an RPA primer group for detecting camouflage wheat flies as well as application and a method of the RPA primer group. The RPA primer group comprises a forward primer Ed-AF and a reverse primer Ed-AR, and the forward primer Ed-AF and the reverse primer Ed-AR are used as primers for the RPA primer group; the nucleotide sequence of the forward primer Ed-AF is as shown in SEQ ID NO. 1, and the nucleotide sequence of the reverse primer Ed-AR is as shown in SEQ ID NO. 2. Moreover, the method for detecting the camouflage wheat fly by using the RPA primer group has the advantages of high specificity, simple operation process, no dependence on laboratory instruments and equipment, low detection cost and the like, solves the problem of distinguishing the camouflage wheat fly, and lays a foundation for quarantine inspection, epidemic situation monitoring, prevention and control of the camouflage wheat fly in the future.

The invention discloses a fermented ginseng-probiotic-natural antibacterial peptide composite oral liquid with an active immune defense function and a preparation method thereof, and belongs to the technical field of functional health food. The oral liquid is prepared by compounding a fermented ginseng matrix, an active probiotic preparation, a fly maggot source natural antibacterial peptide extract and auxiliary materials, and the activity of the components is guaranteed through a whole-course cold chain preparation process. On the basis of a microbial counterbalance theory, a human body active immune defense system is constructed by utilizing the synergistic effect of the fermented ginseng, the probiotics and the antibacterial peptide, and the limitation of traditional passive medical treatment is broken through; the shelf life of the product at 0-5 DEG C reaches 12 months, and the product is convenient to take and high in safety. The invention has the advantages of simple preparation process, wide raw material source and suitability for large-scale production, and has extremely high practical value in the field of human health protection.

The invention discloses an oyster ecological reef cluster specially designed for a soft substrate intertidal zone mud flat and based on timber pile fixation, and belongs to the technical field of marine ecological restoration and coast engineering. The invention provides a suspension type reef construction scheme based on the friction pile principle aiming at the problem that an existing gravity type artificial reef is prone to sedimentation on a silty and muddy beach. The ecological reef cluster is composed of a plurality of reef body units, each unit comprises a pine pile set, and net bags are hung and fixed through rope knots. Trace terpenoids released by the pine material and biological membranes on the surfaces of the scallop shells have a synergistic effect, so that the attachment rate of the oyster larvae is remarkably increased. According to the method, through a'biological armor 'mechanism, the wood piles are wrapped and protected from being corroded by ship maggots through rapid calcification of oysters, a hydrodynamic field is optimized through 50-meter large-interval staggered layout, water body exchange and bait supply are guaranteed while wave energy is reduced, and the problem that structural stability and biocompatibility are difficult to consider in ecological restoration of the soft foundation beach is solved.

The utility model provides a hermetia illucens fly maggot multistage screening machine relates to screening machine technical field, the utility model provides a frame and fixing subassembly, one side of the frame is provided with a hopper, one side of the frame is provided with a plurality of filter screens, one side of the frame far away from the hopper is provided with a plurality of discharge pipes, one side of the frame is provided with a vibration motor, and the other side of the frame is provided with a vibration motor. An anti-blocking device is arranged on one side of the frame through a fixing assembly and comprises a containing plate, a clamping block is inserted into one side of the containing plate, a rotating block is rotationally connected to one side of the containing plate, and a plurality of clamping grooves are formed in the circumference of one side of the rotating block at equal intervals. According to the multi-stage screening machine, the blocked part of the hopper can be extruded and dredged, the situation that blocking is generated when many hermetia illucens fly maggots pass through the outlet of the hopper together, and then the discharging efficiency of the hermetia illucens fly maggots from the interior of the hopper is affected is avoided, and therefore the using effect of the multi-stage screening machine can be improved.

The invention relates to the technical field of biological additives, and discloses a functional compound protease biological mosquito and fly repelling non-antibiotic premix and a preparation method thereof.The microcapsule sequentially comprises a fermentation function inner core, a high-temperature-resistant protective layer and a targeted controlled release outer layer from inside to outside, the inner core with the fermentation function is prepared by symbiotic fermentation of trichoderma harzianum and aspergillus niger on a culture medium containing melia azedarach meal and vegetable oil glyceride, compound protease, azadirachtin active matters and a biological surfactant are integrally generated, and the high-temperature-resistant protective layer is composed of thermally induced gel modified sodium alginate and is used for resisting high-temperature processing of the feed; the targeted controlled-release outer layer is formed by compounding a pH sensitive polymer and cellulose nanocrystals, and the structure ensures that the microcapsule is stable in the stomach of an animal and disintegrates in excrement excreted from the body due to dual effects of pH rise and microbial degradation. The problems that an existing biological agent is poor in thermal stability and single in action target spot are solved, and the biological agent has the double effects of killing fly maggots and repelling mosquitoes and is accurate and efficient.

A blood fat-reducing pill containing fly maggot powder and organic selenium grass powder based on an ancient prescription idea belongs to the technical field of Chinese patent medicine production, all the raw materials need to be processed into powder, and all the powdery raw materials are crushed into fine powder with the particle size of 200 meshes by a crusher. The feed additive is prepared from the following raw materials in parts by weight: 30-60 parts of fly maggot powder, 20-50 parts of organic selenium grass powder and 10-30 parts of pharmaceutic adjuvants, the pharmaceutic adjuvant comprises one or more of ingredient medicine powder, an adhesive, a filler and a lubricant, the ingredient medicine powder is prepared from hawthorn, semen cassiae, polygonum multiflorum, salvia miltiorrhiza and rhizoma alismatis, and the ingredients are prepared into superfine powder and then are equivalently mixed; experimental results show that the product disclosed by the invention has a remarkable effect of reducing blood fat metabolism. The traditional Chinese medicine composition has the advantages of synergistic interaction, obvious effect, innovative source, ancient use, safety, nature, small side effect, advanced dosage form, convenience in taking, low cost and obvious effect.

The invention relates to the technical field of agricultural insecticides, in particular to a chlorfenapyr and chlorfluazuron compound insecticide and an application method thereof.The chlorfenapyr and chlorfluazuron compound insecticide comprises chlorfenapyr and chlorfluazuron with the mass ratio being 2: 1 and the total mass fraction being 10%-20%. The co-toxicity coefficient of the compound agent to Chinese chive maggots is larger than or equal to 153, LC50 is smaller than or equal to 2.12 mg / L, the 48-hour corrected death rate is larger than or equal to 93%, the control effect of the compound agent is remarkably better than that of a single component, the compound insecticide main agent is in a suspension dosage form and comprises a dispersing agent, a wetting agent, a thickening agent, a preservative and a pH regulator, the stability and uniformity of the agent are ensured, a root irrigation method is adopted as a field application method, the application amount per mu is 20-25 g, and the application amount per mu is 20-25 g. The fertilizer is diluted by 1500-2000 times and then added with 30-40 kg of water, the fertilizer is irrigated along the roots of Chinese chives, and the application time is that the height of Chinese chives seedlings is 10-15 cm or the hatching amount of Chinese chive maggot eggs is larger than 5 per plant.

The utility model relates to the technical field of fly maggot breeding equipment, and discloses a fly maggot breeding screening bed which comprises a first support, and shock absorber bodies are installed at the two ends of the two sides of the first support. According to the fly maggot breeding screening bed, when a user moves first clamping blocks to the two sides, connection between a first screen and a first support is removed, the user can take out the first screen from the interior of the first support, treat screened fly maggots or replace and clean the first screen, the user can operate more conveniently, and the user can use the fly maggot breeding screening bed more conveniently. The problem that the equipment is shut down for a long time due to the fact that the equipment needs to be maintained is solved, the first screen is completely taken out of the interior of the first support so that a user can thoroughly clean the first screen, the maintainability of the equipment is enhanced, the equipment can keep a good working state in the long-term operation process, and the service life of the equipment is prolonged. The service life of the equipment is prolonged, and the practicability and convenience of the equipment are improved.

The present application relates to fly breeding technical field, especially to a kind of fly breeding quantitative feeder.The present application provides such a fly breeding quantitative feeder, including electric slide rail, blanking box, first connecting frame, guide rod and quantitative pressing mechanism etc., electric slide rail is connected with blanking box for accommodating food, blanking box is connected with two first connecting frames, first connecting frame is slidably connected with two guide rods, and quantitative pressing mechanism is used to quantitatively press food.The present application drives blanking box, rotating plate and rotating rod to move left by controlling electric slide rail, and the contact between rotating rod and extruding rod will make the baffle plate move left, when rotating plate contacts with roller, air will enter connecting cylinder under the action of connecting rod and piston rod, when rotating plate is separated from roller, piston rod can extrude air in connecting cylinder to connecting box, so that pressing plate moves down, thereby automatically quantitatively feeding fly in breeding frame.

The application provides a taste-improved linalool embedded microcapsule feed additive and a preparation method thereof. The additive is a microcapsule composed of core material linalool and wall material, and the wall material comprises raw material matrix, black soldier fly larvae powder, fly maggot powder, edible gelatin, edible lactose and emulsifier; the fermented raw material matrix is prepared from bean curd residue, peanut cake, wheat bran and cassava residue through co-fermentation of lactic acid bacteria and yeast. The preparation method comprises the following steps: mixing the raw material matrix and wall material components to prepare a wall material aqueous solution, adding linalool emulsion, and then performing composite coagulation, glutamine transaminase cross-linking solidification and spray drying to obtain the product. In the application, the anti-nutritional factors of raw materials are removed through fermentation, the protein digestion and utilization rate is improved, the pungent smell of linalool is shielded with the help of gelatin and lactose, the volatilization and oxidation of linalool are slowed down, the feed palatability is greatly improved, the product stability is good, and the product can be widely applied to livestock and poultry breeding feed.

This invention aims to provide a modified maggot cultivation container for organic waste processing and maggot cultivation. The maggot cultivation container according to this invention consists of an organic waste collection box (1) which is the main container in the form of a rectangular box measuring 70-80 cm x 48-60 cm x 42.5-50.5 cm which functions as a space for decomposing organic waste as well as a medium for cultivating maggot larvae which on one of the walls is installed a Harvest Channel (2) in the form of a pipe with a certain slope which functions as a route for the transfer of prepupae to the harvest container automatically and a Collection Container (3) which is placed outside the Megabox (1) which is directly connected to the end of the pipe and functions to accommodate prepupae that come out through the Harvest Channel (2).The advantages of this invention are that it has a simple structure, is efficient, durable in use, low cost, the decomposition of organic waste by maggots can take place quickly, is odorless, the use of tools can be reached and applied easily by the community and the growth of cultivated maggots can be optimal for harvesting as fertilizer and alternative animal feed.

The invention provides a method for industrially breeding traditional Chinese medicine maggot, and relates to the field of maggot breeding. Comprising the following steps that in the environment with the temperature of 25-30 DEG C and the humidity of 20-30%, larvae of maggots are placed in an egg receiving tray to be bred, and the larvae of maggots are attracted to lay eggs; the culture medium is flatly laid in a feeding box, then eggs are transferred to the culture medium, and the eggs are hatched into larvae in the environment with the temperature being 30-35 DEG C and the humidity being 60-80%; adding a first larva feed into the feeding box on the 4-6 days of larva growth, adding a second larva feed on the 7-th day, feeding for 1-3 days again, performing light induction on adults to climb out, and collecting the adults; the invention provides an efficient, environment-friendly and low-cost industrial breeding method for maggots, large-scale waste fruits and vegetables are subjected to recycling and innocent treatment and are converted into high-value insect protein and organic fertilizer, and cyclic utilization of wastes is realized.

The invention relates to the technical field of feed processing and bioactive substance extraction, and particularly discloses a combined preparation method of antibacterial peptide based on fresh shrimp shells and an antibiotic-free feed premix. According to the method, fresh shrimp shell waste serves as a raw material and is prepared into slurry through pretreatment, and a culture medium containing energy substances and composite strains is prepared and used for breeding housefly maggots; and then, extracting the high-purity antibacterial peptide from the harvested fly maggots through the processes of homogenization, ultrasonic-assisted extraction, salting-out, dialysis and the like. Meanwhile, culture medium residues obtained after breeding and fly maggot extraction residues are mixed, dried and smashed, and then auxiliary materials such as probiotics, mineral substances and vitamins are added, so that the antibiotic-free feed premix is prepared. According to the method, full-chain and high-value utilization of the fresh shrimp shell waste is achieved, the high-value-added antibacterial peptide product and the high-nutrition antibiotic-free feed are synchronously produced, the process is compact, environmentally friendly and economical, and an innovative technical scheme and core raw material support are provided for antibiotic-free breeding.

1. Name of the product in this design: Lure Fishing Bait (Needle-tailed Maggot). 2. Purpose of this design: Fish bait for fishing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to the field of edible films, in particular to a fly maggot protein edible film and a preparation method and application thereof.The fly maggot protein edible film is prepared from, by weight, 1%-20% of fly maggot albumin, 1%-20% of fly maggot globulin, 0.1%-5% of nanometer root materials, 0.5%-5% of insect antibacterial peptide, 0.1%-1% of plasticizer and the balance water, and the total weight percentage of all the raw materials is 100%. The adopted fly maggot protein can be used as a main film-forming material, has the characteristics of excellent nutrition, biocompatibility, biodegradability, film-forming property and the like, and can be used for preparing an edible film, and the insect antibacterial peptide and the nano root material can further synergistically improve the antibacterial property, the oxidation resistance, the mechanical property and the barrier property of the film, so that the antibacterial property of the film is improved. The industrial production of the edible film is facilitated, the application of the fly maggot protein in the food field can be expanded, and the high-value utilization of the fly maggot protein is also promoted.

The utility model relates to the technical field of fly maggot breeding, in particular to a fly maggot breeding assembly line. The device comprises a separating plate and a support, the separating plate is in sliding connection with the surface of the support, a sliding groove is formed in one side of the support, a collecting device is arranged on the surface of the sliding groove of the support, the collecting device comprises a collecting bin, and the collecting bin is in sliding connection with the surface of the sliding groove of the support. Two connecting rods are fixedly connected to the surface of the collecting bin, a grip is fixedly connected to one end of each connecting rod, a connecting hole is formed in the surface of the support, a fixing rod is fixedly connected to one side of the support, and a fixing plate is rotatably connected to the end, away from the support, of the fixing rod. The fly maggot collecting device solves the problems that the separated fly maggots can be scattered everywhere and climb everywhere, so that the working environment becomes dirty, disordered and bad, workers have to manually collect the fly maggots scattered everywhere, and the working intensity of the workers is increased.

The invention relates to the technical field of medicinal breeding of special insects, in particular to a method for improving zinc absorption and anti-inflammatory components of maggots, which comprises the following steps: preparing bullfrog-poria cocos-herba epimedii fermented feed; on the basis of the fermented feed, three-generation continuous directional feeding and screening are carried out on maggots, low zinc stress is applied to the first generation, individuals with optimized zinc transport related capacity are screened, LPS inflammation stress is applied to the second generation, and individuals with optimized anti-inflammation related capacity are screened. Applying drying stress to the third generation, and screening the individuals with the zinc content and the anti-inflammatory peptide expression quantity reaching the standard; through the three generations of screening, a maggot population with stable zinc content and stable anti-inflammatory peptide expression quantity is obtained. Through a specific fermented feed formula and a multi-generation directional breeding technology, the zinc enrichment capacity and anti-inflammatory efficiency of maggots are effectively improved, and the maggots become biological resources suitable for the fields of nutritional supplement and medical treatment.

The application discloses a medicine injection method for killing camel head fly larvae parasitizing in the nasal cavity of a bactrian camel. A pair of non-bony structures similar to a triangle and the size of a thumb are arranged at the joint of nasal bone, maxillary bone and frontal bone. The pair of non-bony structures are at the same horizontal level with the eye socket of the bactrian camel, are located at the intersection of the inner corner of the eye and the upper edge of the eye socket, and are away from the eye socket by 4-5 cm. After a syringe is vertically inserted into 2-3 cm at the site, the needle of the syringe can reach the medial part of the concha nasalis. After the site is inserted into 2.5-3 cm in the clockwise direction and is inclined by 45 degrees, the needle can reach the lateral part of the concha nasalis. The medicine injection method can directly inject the insect killing medicine to the parasitizing position of the first instar larvae, and the purpose of killing the first instar larvae is achieved. The medicine injection method provides a new method for killing the first instar larvae in the overwintering period, and can reduce the economic loss of the camel raising industry caused by the nasal fly maggot disease.

The invention relates to an agricultural factory, and belongs to the technical field of facility agriculture and soilless culture. The whole greenhouse is a fully-sealed greenhouse composed of an inner film and an outer film, photovoltaic panels are laid on the outer film, and the greenhouse internally comprises a planting area, a fish culture area, a feeding area, a fly maggot production area and a processing area. A photovoltaic power generation system, an automatic temperature control system, a moisture recovery system, an LED lighting system, an irrigation system, a CO2 concentration control system, an element detection and supplement system and an intelligent control system are arranged in the greenhouse, pennisetum sinese is planted in the planting area, and products in the planting area and the fly maggot production area are used as feed of the fish culture area and the feeding area. The manure-containing water in the fish culture area is used for irrigating the planting area, the fish and animals are made into freeze-dried fish and freeze-dried meat, and thermoelectric water and fertilizer self-sufficiency can be achieved. The outer film of the double-layer greenhouse is used for resisting wind and laying a photovoltaic solar power generation panel and also has a heat preservation effect, and the inner film achieves the optimum temperature required by different crops under the conditions of the outer film, 24-hour illumination heat production and fishpond heat storage.

The invention relates to the technical field of medicinal breeding of special insects, in particular to a method for improving digestion and absorption efficiency and antibacterial immune components of maggots, and the method comprises the following steps: preparing a fish-hawthorn-astragalus membranaceus fermented feed; continuous three generations of directional stress screening are carried out, offspring is used as next generation provenance, and a target population is obtained; the three continuous generations of directional stress screening are performed according to the following modes: first-generation screening: feeding larvae with fermented feed, and applying high-protein stress; the larvae are fed with fermented feed added with astragaloside, low-temperature stress is applied, and individuals with the immune globulin IMPI content larger than or equal to 600 mu g / g are screened; and third-generation screening: feeding the larvae with fermented feed, and applying high-protein and low-temperature composite stress. The fish-hawthorn-astragalus membranaceus fermented feed is prepared in combination with continuous three-generation directional stress screening, so that the effects of activating intestinal protease of maggots to improve the digestion efficiency, promoting immune cell differentiation to accumulate immune components, enhancing intestinal flora regulation and enhancing the digestion and immune synthesis capability are achieved.

The invention belongs to the field of fly maggot breeding, and provides a method for integrally breeding fly maggots by using pig manure in Tibet, which comprises the following sequential steps: hatching period: placing red-head fly pupae in a constant-temperature and constant-humidity environment for eclosion, controlling the environment temperature to be 25-30 DEG C and the relative humidity to be 50-70%, and immediately providing feed and clean drinking water after the pupae are subjected to eclosion into adult flies; by constructing a pig manure-fly maggot-protein feed-organic fertilizer integrated breeding mode, the double problems that in Tibetan pig breeding in the Tibetan alpine region, the manure treatment cost is high, transportation is difficult, the resource utilization rate is low, and protein feed depends on outsourcing for a long time are effectively solved; and in combination with self-circulation maintenance of red-head fly populations introduced in Sichuan, the egg laying rate and egg hatching rate of adult flies are increased, and the inhibition effect of plateau low-temperature oxygen-deficient environment on fly maggot growth is overcome.

The invention discloses application of 1-methoxy indole and derivatives thereof in trapping pests and an attractant, and belongs to the technical field of pest control. According to the invention, the 1-methoxy indole and the derivative thereof are found to have the effect of luring diptera pests for the first time. When the 1-methoxyindole is applied as a pest attractant, the 1-methoxyindole with the concentration of 1.57 ng / cm < 2 > in a plane can generate an attractive effect on larvae of the drosophila melanogaster, and when the plane concentrations are 15.7 ng / cm < 2 > and 157 ng / cm < 2 >, the 1-methoxyindole can respectively generate an attractive effect on female and male adults of the drosophila melanogaster, and the attractive effect is enhanced along with the increase of the concentration. In addition, the 1-methoxy indole has an attracting effect on imagoes and larvae of drosophila parasuis, wing-spot drosophila, Heidel drosophila, black drosophila, drosophila parasuis and pseudoblack drosophila as well as larvae of heterophaga larvae, lucilia sericata larvae and bradysia odoriphaga larvae (bradysia odoriphaga).

The invention discloses a high-efficiency and low-cost method for extracting fly maggot chitin. The method comprises fly maggot shell pretreatment, deproteinization treatment, demineralization treatment, purification and drying. According to the method, enzyme-alkali synergistic step-by-step deproteinization is adopted; crude protein is preliminarily removed by optimizing a compound enzyme ratio (chitinase: cellulase) and an enzymolysis condition; and performing secondary deproteinization by adopting a low-alkali NaOH solution to thoroughly remove residual protein. By means of the mild demineralization technology, damage of strong acid to the fly maggot chitin structure is avoided, then EDTA is added to assist demineralization, and the demineralization efficiency is improved. And finally, performing low-temperature drying, so that the fly maggot chitin maintains a three-dimensional porous structure, the subsequent derivatization activity is enhanced, and the extraction of the high-purity fly maggot chitin is realized. The whole process reduces use of strong acid and strong alkali, and reduces production cost and environmental pollution.

The application discloses an indoor propagation device and method of leek maggot, and relates to the technical field of insect propagation. The application provides an indoor propagation device of leek maggot, which comprises a cover and a shell. The cover is arranged above the shell. A first air hole for air ventilation is arranged on the surface of the cover. A rearing dish for rearing leek maggots is arranged in the shell through a support frame. The application further discloses a propagation method of the indoor propagation device of leek maggot. The indoor propagation device and method of leek maggot are used, and the work of adding water, moisturizing, picking eggs and picking insects does not need to consume a large amount of manpower, so that the leek maggots can be continuously reared indoors without being affected by the external environment, and the leek maggot population is provided for subsequent experiments.

The utility model discloses a fly maggot breeding environment deodorization device which comprises a deodorization box body, a sealing door, a feed channel, an air inlet and an air outlet are arranged on the deodorization box body, the air outlet is connected with an air filter, and a fly maggot breeding pond, a heating pipe, a temperature sensor and a humidity sensor are arranged in the deodorization box body. The heating pipe is mounted on the inner wall of the deodorization box body, and a controller is further arranged on the outer side wall of the deodorization box body; the deodorization assembly comprises a deodorization solution box, a high-pressure pump, a deodorization pipeline, a pipe network and a plurality of nozzles which are arranged outside the deodorization box body, the liquid inlet end of the high-pressure pump is connected with the deodorization solution box, the liquid outlet end of the high-pressure pump is connected with one end of the deodorization pipeline, and the other end of the deodorization pipeline extends into the deodorization solution box and is connected with the pipe network; the pipe network is installed on the top of the deodorization box body, and the multiple nozzles are evenly distributed on the pipe network. The system not only can provide an optimal breeding environment, but also has the advantages of good deodorization effect, low energy consumption, intelligent control and simpler and more convenient operation.