325 results about "Shrimp" patented technology

The invention provides a high-activity chitinase mutant and application thereof in degradation of crustacean waste, and belongs to the technical field of enzyme engineering and agricultural waste conversion. According to the invention, chitinase PbChi from Paenibacillus barengltzii is subjected to molecular modification, and a plurality of chitinase mutants with high activity are successfully constructed by increasing the flexibility of a connexin, changing steric hindrance at a substrate catalytic crack inlet and changing catalytic residues in a beta sheet layer in a catalytic structural domain through calculation design and experimental verification; the chitinase mutant can effectively degrade shrimp shell meal, so that carapace waste is effectively utilized, and the chitinase mutant has a wide application prospect in the biological feed industry.

The invention discloses a tail water treatment method and system based on industrial aquaculture of South America white shrimps, and relates to the technical field of aquaculture tail water treatment.The method comprises the steps that a tail water purification integrated device containing a microfilter, a protein separator and other components is obtained, and pretreatment, biological treatment and deep treatment nodes of the tail water treatment process are extracted; corresponding nodes and device components are correlated and mapped to obtain three corresponding processing channels, then tail water component data are collected, control parameters are analyzed based on the three processing channels, and tail water closed-loop processing is carried out. The technical problems that an existing treatment mode for the industrial aquaculture tail water of the South America white shrimps is difficult to achieve standard treatment, high in treatment cost and poor in synergism of all links are solved, and the technical effects that the industrial aquaculture tail water of the South America white shrimps is efficiently treated, the treatment cost is reduced, operation is more convenient and faster, and the synergism of all links is better are achieved.

The invention provides a method for detecting fluorine compounds in shrimps, which comprises the following steps: S1, sample preparation: removing shells of to-be-detected shrimps, and crushing and homogenizing muscular tissues of the to-be-detected shrimps to obtain a to-be-detected sample; s2, extraction: extracting a sample to be detected, retaining an organic phase, and concentrating to obtain a concentrated solution; then adding water which is 5-15 times of the concentrated solution for dilution to obtain a to-be-purified solution; the extraction solvent is an aqueous solution of an organic solvent; s3, purification: purifying the to-be-purified liquid by using a solid-phase extraction column to obtain a purified liquid; s4, concentration and constant volume: concentrating the purified liquid to be nearly dry, redissolving, and filtering to obtain filtrate; and S5, sample detection: detecting the filtrate by using a liquid chromatograph-mass spectrometer, and carrying out qualitative and quantitative analysis on the fluorine compounds in the prawns by adopting a standard curve method. The method can be used for simultaneously determining the contents of 41 PFASs compounds with different physicochemical properties in shrimps.

The invention discloses a simulation method and system for comprehensive utilization of tail water in a rice and shrimp planting and breeding area based on digital twinning, and particularly relates to the technical field of digital twinning and computer simulation. The method is used for solving the problem that an existing digital twinborn model depends on mathematical speculation to cause systematic cognitive deviation of a simulation result during simulation in a large number of areas without monitoring data in a rice and shrimp planting and breeding area. By acquiring monitoring data and a physical topological structure, a simulation area is divided, and a key data blank sub-area is identified; calculating the potential contribution degree of the state change of each key area to downstream monitoring data and the monitoring data change difference caused by the state change of each key area under different hydraulic paths; the simulation uncertainty level of each key area is evaluated according to the analysis result; and finally, adjusting a water quality simulation calculation strategy of a corresponding region in the digital twin model based on the grade, and operating the model to output a tail water comprehensive utilization simulation result. And the reliability of the whole simulation result and the scientificity of decision support are improved.

The invention discloses dsRNA for targeted regulation of a freshwater shrimp PKA-R1 gene and an obtaining method and application of the dsRNA, and belongs to the technical field of biology.Firstly, the freshwater shrimp PKA-R1 gene is obtained, then a gene segment with the sequence of SEQ ID NO: 3 is obtained through RNA interference and other technologies, dsPKA-R1 is synthesized through the gene segment, and after the synthesized dsPKA-R1 is injected into the pericardial cavity of a freshwater shrimp, it is proved that the dsPKA-R1 can slow down growth of the freshwater shrimp through growth parameter comparison.

The invention provides a device and a method for purifying culture circulating water in a higher-place pond, and the method specifically comprises the following steps: the culture circulating water and residual feed and excrement in the higher-place pond flow out from a sewage draining exit at the center of the pond bottom, and gradually flow into a self-settling filter well through a water inlet at the bottom of the well; aquaculture circulating water is filtered by an immersion filtering device in the well and overflows out of the well, and residual feed and excrement settle to the bottom of the well and then are discharged through a shrimp shell excrement drain outlet; the breeding circulating water overflowing out of the well flows through a hypochlorous acid oxidation device to be disinfected; the culture circulating water treated by the hypochlorous acid oxidation device flows into an aeration dechlorination tank to remove harmful gas; the culture circulating water treated by the aeration dechlorination tank flows into the ecological tank, so that the contents of carbon, nitrogen, phosphorus and the like in the water are reduced; and the culture circulating water treated by the ecological pond is pumped into the higher-place pond through a reflux pump. The system is efficient, energy-saving, small in occupied area, high in automation degree and capable of improving the water quality management efficiency and stability of higher-place pond culture circulating water.

The invention relates to the technical field of phenotype measurement in aquatic genetic breeding, in particular to a macrobrachium rosenbergii small-size shrimp high-throughput phenotype measurement method and measurement system. According to the method, a camera obscura environment is constructed through a white shooting bottom plate, a dark extinction inner wall and an LED area array light source in a measuring box body, and illumination is adaptively adjusted by combining rough segmentation of a preview and analysis of a local gray histogram, so that stable bimodal gray distribution is formed between a shrimp body and a background. On the basis, a segmentation-key point combined deep learning model is adopted, a shrimp body mask and a standard key point are output at the same time, topological consistency loss constraints of a framework side length proportion and an included angle are introduced in training, and key point mismarking and drifting caused by the transparent body color are remarkably reduced. According to the method, rapid, non-contact, high-precision and high-throughput measurement of macrobrachium rosenbergii small-specification individual phenotype parameters and weight is realized, and a high-quality structured phenotype database is provided for genetic evaluation and multi-character combined selection.

To provide a holder and a fishing rig equipped with the holder that support the joint between the head and body of a shrimp to prevent the head from falling off, enable easy attachment of the shrimp, and accommodate different shrimp sizes. [Solution] The holder 130 of the present invention is a holder for holding the joint between the head and body of a shrimp B impaled on a main hook 112, and comprises a flexible cylindrical body 131, the cylindrical body 131 is provided with a slit 132 formed along its longitudinal direction, and the cylindrical body 131 is positioned to cover the joint between the head and body of the shrimp B.

1. Name of the designed product: fish bait (shrimp shape). 2. Use of the designed product: the designed product is used for fish bait for fishing. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

According to the technical scheme, the sheltering device is characterized by comprising a plurality of layers of flexible rope nets, the rope nets are horizontally arranged and arranged in the vertical direction, the rope nets are sequentially connected, the two sides of the rope net on the top layer are connected with supporting rods respectively, the supporting rods are connected with floating blocks, and the floating blocks are connected with the rope nets on the bottom layer. The rope net on the bottom layer is connected with a sinking block, and a telescopic piece is connected between the supporting rods and used for adjusting the distance between the two supporting rods. The multi-layer rope net can provide rest and sheltering for shrimps in the molting period in a culture water body and avoid similar disabilities, and the telescopic piece is arranged so that the distance between the supporting rods can be adjusted at any time, and therefore the size of meshes of the rope net can be adjusted, and the multi-layer rope net can adapt to shrimps of different specifications and growth stages.

The invention provides an extraction and purification process for producing astaxanthin based on a fermentation method, which specifically comprises the following steps: step 1, preparing materials: selecting shrimp shells, cleaning the shrimp shells, removing impurities doped in the shrimp shells, and then putting the cleaned shrimp shells into a dehydration device for dehydration; step 2, pretreatment; 3, extraction: putting the pretreated shrimp shells into an extraction kettle for extraction; step 4, separation; and step 5, saponification treatment. When the device is used, shrimp shells enter the inner container through the feeding pipe, a cleaning agent enters the water inlet pipe, the cleaning agent enters the inner container through the filtering holes to soak the shrimp shells, and the supporting columns drive the stirring plates to rotate to stir materials during soaking; and in the later period, the supporting column drives the stirring plate to rotate and stir, and meanwhile the materials are conveniently pushed to the position between the connecting cylinder and the discharging cylinder through a scraper on the connecting column.

The invention discloses a method for combining straw returning to field, pond fish culture and rice, fish and soft-shelled turtle / shrimp comprehensive planting and breeding, and belongs to the technical field of rice, soft-shelled turtle, fish and shrimp comprehensive planting and breeding. After rice in the rice field is harvested, straw is smashed and returned to the field, a hidden survival place is provided for crayfish seedlings, rotten straw and derived zooplankter provide bait for crayfish and fish, and the straw decomposition rate is increased by eating; after water in the rice field module becomes serious along with straw rotting, the water is discharged into the culture pond through tail water treatment engineering treatment, and the water fertility of the pond is increased; meanwhile, after eutrophication of the water body in the culture pond, the water body is discharged into the rice field after being treated by a tail water treatment project and flows into the culture pond again after being further purified by the rice field. According to the constructed mode, the straw is converted into the organic fertilizer through the crayfish and the fish, and the paddy field is adopted for purifying pond culture tail water. No breeding wastewater is discharged in the mode. The investment of aquatic product baits and rice field fertilizers is reduced, and the income and quality of rice and fishes are increased.

The application belongs to the technical field of lobster processing devices, and particularly relates to a crayfish shelling device, which comprises a bottom box, symmetrical side plates fixedly connected to the two sides of the bottom box, and a mounting table fixed in the middle of the two side plates; a fixing assembly for fixing the position of crayfish, wherein the fixing assembly comprises a vertical rod for inserting crayfish; a guide assembly arranged on the two sides of the vertical rod to guide an operator to insert the head shell of crayfish on the vertical rod from top to bottom; a clamping assembly arranged on one side of the mounting table and used for clamping the tail of crayfish; a driving assembly for driving the clamping assembly to rotate so as to separate the tail from the head shell; and an adjusting assembly for controlling the vertical rod to protrude out of or be retracted into a vertical groove. The application can quickly and completely separate the tail from the head shell, avoid waste of shrimp meat, and automatically classify the tail and the head shell, thereby improving the separation efficiency.

This invention belongs to the field of biological agents for aquaculture, and discloses a compound biological pond-cleaning agent containing tea saponin and its preparation method. The compound biological pond-cleaning agent of this invention comprises the following components by weight: 3-10 parts tea saponin, 60-70 parts roe beetle root powder, 10-20 parts Buddleja officinalis, 5-10 parts compound microbial powder, 3-8 parts adjuvants, and 10-20 parts carrier; the adjuvant is a mixture of sodium lignin sulfonate and sodium dodecylbenzene sulfonate; the compound microbial powder is a mixture of Bacillus subtilis and photosynthetic bacteria; and the carrier is diatomaceous earth. This invention combines three natural active ingredients—tea saponin, roe beetle root powder, and Buddleja officinalis—with suitable adjuvants and a carrier, which can expand the pond-cleaning range and has good killing or inhibitory effects on harmful organisms such as wild fish, shrimp, crabs, and snails, as well as various pathogens. The pond-cleaning is thorough, and the raw materials are easily degradable, leaving no residue. It is environmentally friendly and has a long-lasting effect, which is of great significance for promoting the green and sustainable development of aquaculture.

The invention discloses an electric control blowdown system and method for lossless separation of dead shrimp shells and live shrimps. The electric control blowdown system comprises a culture pond, a bottom discharge device and a side discharge box. The bottom discharge device is provided with an inserting-pulling pipe, a plurality of sets of filtering water inlet holes are evenly formed in a pipe body of the inserting-pulling pipe, and an electric push-pull rod is arranged to achieve pollution discharge of the inserting-pulling pipe in an inserting-pulling pipe pollution discharge hole. The sewage discharging process is divided into a collecting stage and a washing stage, firstly, in the collecting stage, bottom drainage is conducted by controlling the inserting and pulling pipe, and pond bottom shrimp shells, excrement and other sundries are guided to enter a drainage pipeline and a side drainage box; and then the bottom drainage is closed in the washing stage, water flow is injected through a filtering water inlet hole of the pluggable pipe, and residual dirt in the drainage pipeline is flushed into the side drainage box. A filtering basket is adopted in the side discharging box for collection, and harmless separation is achieved by manually sorting live shrimps. The device is simple in structure and small in occupied breeding space, dead shrimps and shrimp shells can be effectively collected while full-automatic electric control of stable drainage and pollution discharge is achieved, live shrimps are prevented from escaping, and the breeding efficiency is improved.

The invention relates to a method for directly preparing chitin nanofibers from shrimp and crab shells based on a deep eutectic solvent system and the chitin nanofibers. The invention discloses a method for directly preparing chitin nanofibers from shrimp and crab shells based on a deep-eutectic solvent system. The method comprises the following steps: mixing a hydrogen bond donor and a hydrogen bond acceptor to obtain the deep-eutectic solvent system; the shrimp and crab shell powder and the deep eutectic solvent system react for 2-6 h at the temperature of 40-100 DEG C, and the stirring speed is 200-500 r / min; carrying out ultrasonic treatment for the first time under the conditions that the power is 800 to 2400W, the frequency is 20 to 25kHz and the total ultrasonic time is 30 to 180 minutes; and after the reaction is finished, separating, washing and carrying out secondary ultrasonic treatment to obtain the chitin nanofiber. The three processes of deproteinization, demineralization and chitin nanocrystallization can be synchronously realized in the same reaction system, the technological process is simplified, the energy consumption and the environmental pollution are reduced, and the yield and the quality of the chitin nanofiber are improved.

The application discloses a kind of based on water temperature illumination coupling regulation and control procambarus clarkii ovulation induction system, for the existing system There are many environmental factors, poor coordination ability, temperature monitoring precision is insufficient, lack of real-time perception of physiological state of shrimp problem.The system of the present application includes heat insulation workshop, induced ovulation pool, high-level reservoir, water temperature control module, illumination control module, oxygenation module, water quality monitoring module, microporous camera, dehumidification device, bottom improvement agent automatic feeding device, non-contact yolk protein fluorescence detection probe and intelligent auxiliary system, intelligent auxiliary system is connected with each module respectively Unified control.The present application realizes the time sequence coupling regulation and control of multiple factors such as water temperature, illumination, water level and humidity by coordinating each module through intelligent auxiliary system, and effectively improves the ovulation induction success rate and synchronism of procambarus clarkii by real-time perception of physiological state of shrimp.The present application is mainly used for artificial propagation and seedling scale production of procambarus clarkii.

The application relates to the technical field of environment monitoring and control, and discloses a shrimp waterless transportation environment automatic optimization method and system based on Internet of Things. The method comprises the following steps: collecting multi-dimensional environment parameters such as temperature, humidity and oxygen concentration in a shrimp waterless transportation container through a distributed sensor network, intelligently identifying physiological states such as dormancy degree, stress level and molting cycle of shrimp bodies based on environment data, generating temperature-humidity-oxygen collaborative control instructions by using a multivariate coupling control algorithm, driving a self-adaptive actuator group to perform coordinated control such as refrigeration, spraying and oxygen supply, and dynamically compensating according to the molting cycle and transportation time through a predictive deviation correction mechanism. The application solves the technical problems that the environment control lacks intelligentization and collaboration in the existing shrimp transportation technology and cannot be predictively adjusted according to the physiological state of the shrimp body, and improves the precision of environment control in the transportation process.

An apparatus and method for robotic deheading of shrimps. An image of a shrimp supported on one side on a moving or stationary support surface is generated by a vision system. The controller uses these images to position and orient the end effector of the robot relative to the shrimp to be deheaded. Once in position, one version of the robot strikes the end effector down to impact the shrimp and separate the head of the shrimp from its abdomen. A punch block on the end effector is made of a resilient material to flatten upon impact with the shrimp on the support surface and create an oppositely directed force tending to urge the abdomen away from the head. Other versions of robots use more rigid punching blocks having specially contoured contact surfaces designed to sever the shrimp head from the abdomen. And the pusher is coordinated and matched with the punching block so as to push the abdomen of the shrimp away from the cut-off head.

The invention discloses a snail-shrimp-grass green three-dimensional planting and breeding and blue-green algae prevention and control method. The planting and breeding system is constructed through layered utilization of water resources. Chubs are stocked on the upper layer, crayfishes are bred on the middle-lower layer, bellamya is put on the bottom layer, and an underwater three-dimensional space is constructed in cooperation with waterweed and high-temperature-resistant vallisneria nana. According to the method, specific fry specifications, bait formulas and feeding management are adopted, the three-dimensional oxygenation technology is combined, the yield per mu of snails is 800-1000 jin, the yield per mu of crayfishes is 200 jin, more than 60 jin of egg-carrying crayfishes are obtained in batches per mu, and compared with a traditional mode, the benefit is increased by 150%. Meanwhile, by means of the synergistic effect of the vallisneria nana, the bellamya and the chub, growth of the blue-green algae is inhibited, the blue-green algae outbreak risk is reduced by 60-70%, and peripheral ponds can be connected in series to purify tail water for cyclic utilization. The mode gives consideration to economic benefits and ecological benefits, reduces the breeding cost, and realizes peak-shifting high-price marketing of the crayfishes.

The marine fish air-sea high-yield method is characterized in that a plurality of pump ships are arranged and combined into a circle, a water area in the circle is a giant net bag bottom bait area, the bait is blue whale mother and child and excrement of the blue whale mother and child, and the excrement leaks to the seabed through the giant net and is diffused to the peripheral sea area outside the bait area; a large-range rich water sea area (high-yield area) is formed, the high-yield area contains large, medium and small marine fishes and shrimps and allows a large number of fishing boats and biogas boats to enter the area for operation, meanwhile, blue whale sonar can be used for inducing distant blue whale, tiger whale or crowd whale to straightly strive to the high-yield area to leave excrement so that rich water can be more fertile, and the huge net can filter out large fishes and only allows small fishes and shrimps to enter the net. The permutation and combination pump ship ring is just like a high-yield area haunch, and a plurality of operation ships in the high-yield area can enter the haunch to avoid typhoons. According to the invention, the whale does not fall into all things, but the whale live into all things, in other words, all the blue whales can be cared for life by the invention and can sleep for life. Fishermen do not need to run around the sea any more, and only need to stay in high-yield areas of the sea.

1. Name of the product in this design: Template for an extrusion molding machine (shrimp). 2. Purpose of this design: To be used on an extrusion molding machine to produce lifelike shrimp. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model relates to a bionic lobster propeller based on a single-degree-of-freedom connecting rod, which comprises a lobster-head-shaped control cabin and a lobster-tail-shaped bionic jet propulsion unit, the lobster-head-shaped control cabin is used for integrating a power unit and providing installation support, and the rear part of the lobster-head-shaped control cabin is hinged with the lobster-tail-shaped bionic jet propulsion unit; and the shrimp-tail-shaped bionic jet propulsion unit is used for straightening energy storage and bending the reciprocating motion of jet to generate propulsion force. The bionic lobster propeller has the advantages that vortex ring jet flow is generated through bionic lobster tail movement, the hydrodynamic efficiency is remarkably improved, and the energy utilization rate is higher than that of a traditional propeller.

The invention discloses a crystal plate cutting device, and relates to the technical field of metal cutting. The crystal plate cutting device comprises a connecting base, the bottom of the connecting base is movably connected with a steering component, the bottom of the steering component is movably connected with a welding cutting component, the outer wall of the welding cutting component is fixedly connected with a welding cutting gun, and the outer wall of the welding cutting component is fixedly connected with an airflow driving mechanism. According to the crystal plate cutting device, in the airflow driving mechanism, an electric sliding block stably slides on a sliding rail to drive an extrusion rod to regularly reciprocate in a water flow box, and an extrusion plate applies stable and controllable pressure to water in the water flow box; water is promoted to be extruded out of the holes and guided by the guide plate to form a water flow beam with definite directivity and certain strength, the water flow beam constructs an effective water flow barrier on the periphery of a welding cutting area, and continuous water flow disturbance can drive close fishes and shrimps.

The utility model discloses a mashed shrimp processing and producing device which comprises a stirring barrel, the top of the stirring barrel is in threaded connection with a barrel cover, a motor is fixedly connected to the center of the top of the barrel cover, a motor driving shaft penetrates through the barrel cover and is fixedly connected with a stirring shaft, and the outer side wall of the stirring shaft is fixedly connected with stirring blades. A hydraulic rod is fixedly connected to the top of the barrel cover, the telescopic end of the hydraulic rod penetrates through the barrel cover and is fixedly connected with a pressing block, a material distributing disc is arranged on the inner wall of the stirring barrel, a material hole is formed in the material distributing disc, a barrel door is arranged on the outer side wall of the stirring barrel, and a discharging box is arranged at the bottom of the stirring barrel; and an electric push rod is fixedly connected to the outer bottom of the discharging box. According to the utility model, the stirring barrel, the material distributing disc and the material discharging box are matched with one another, and materials are divided into small sections of strips to be stirred, so that the burden on a stirring mechanism can be reduced, the mashed shrimps can be mixed more fully and uniformly, and the mixing effect of the mashed shrimps is improved.

The application discloses a small and micro river ecological landscape restoration system, comprising: a drop weir including a front end suspended in the downstream of a river channel; a stone cage wall for supporting the drop weir; a riprap group for constructing a deep pool-shoal sequence, including riprap blocks for forming a nutrient temporary storage area, and refuge gaps provided between adjacent riprap blocks for small fish and shrimps; and a vegetation tower. The application also discloses a small and micro river ecological landscape restoration method. The small and micro river ecological landscape restoration system and the restoration method make the water body in the river channel fall through the front end to form a water curtain in contact with air, increase the oxygen content in the river channel, inhibit the generation and reproduction of anaerobic bacteria, prevent the water body from being black and smelly, ensure the cleanliness of the water body, and increase the ornamental property. The riprap group facilitates the reproduction and refuge of small fish and shrimps, and the vegetation tower is further beneficial to the long-term stable and sustainable development of the water body ecological landscape system.

1. Name of the product in this design: Artificial Bait (Wooden Shrimp 1). 2. Purpose of this design: Fishing bait. 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 discloses a three-dimensional water quality detection device based on an unmanned ship, and relates to the technical field of water quality detection.The device comprises a mounting base, an unwinding motor is fixedly mounted on the mounting base, a winding rope is wound around an output shaft of the unwinding motor, and the end of the winding rope is fixedly connected with a detection bottom bin; the two-way reciprocating lead screw is connected with the detection bottom bin through a bearing, the two-way reciprocating lead screw is in threaded connection with two symmetrical ball sleeves, and the two ball sleeves are jointly and rotationally connected with a plurality of X cross connecting rod sets through a plurality of connecting blocks. The sensor is prevented from being in contact with water pollution before detection, the sensor can be prevented from being collided and damaged by foreign objects such as fishes, shrimps and stones, and the service life of the sensor is remarkably prolonged; the water quality can be synchronously detected by multiple groups of sensors, and the detection efficiency and data comprehensiveness are improved; and the sinking depth of the detection bottom bin is controlled through the unwinding motor, the three-dimensional detection requirements of different water areas can be met, and the detection range is expanded.

1. Name of the designed product: fish hook (live shrimp hook). 2. Use of the designed product: used for live bait fishing by hanging on live shrimp. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.