698 results about "Shrimp" patented technology

The invention discloses a multi-objective optimization decision control method for shrimp and silkworm polyculture environment parameters, and relates to the technical field of polyculture control. The method comprises the following steps: deploying a water quality sensor network, and combining prawn and nereis growth monitoring equipment; extracting criticality of environmental parameters and biological growth indexes by using historical breeding data and experimental data; constructing a dynamic coupling model, and establishing a dynamic model of the polyculture system based on a differential equation; developing a hybrid optimization algorithm to balance the competition and symbiotic relationship between the prawns and the nereis; and generating a control instruction set based on an optimization result, and adjusting the control equipment through a fuzzy PID controller. According to the invention, intelligent regulation and control of shrimp and silkworm polyculture environment parameters are realized, and economic benefits of shrimp and silkworm polyculture are improved.

The invention relates to an intelligent breeding method for crayfish offspring seeds in a winter fallow field, and belongs to the technical field of aquaculture. In order to solve the problems of dissolved oxygen management lag, high ammonia nitrogen accumulation risk and overlarge energy consumption caused by low utilization rate of winter fallow fields and dependence of water quality regulation and control on artificial experience in the prior art, the method comprises the following steps: deploying a water quality dynamic monitoring system based on the Internet of Things to collect data of water temperature, dissolved oxygen, pH value, ammonia nitrogen and nitrite in real time; the power and the water level of the oxygenation equipment are dynamically adjusted after analysis of the edge calculation module; graded regulation and control are achieved by combining a three-level response mechanism, when the dissolved oxygen content is lower than 6 mg / L or the pH value is abnormal, the power of the nanometer oxygenation device is started to 50%, and when the dissolved oxygen content continuously deteriorates, the irrigation system is linked to inject the water body with the temperature being adjusted in advance. According to the method, through intelligent multi-parameter cooperative control and ecological bait design, the resource utilization rate of the winter fallow field is increased, the survival rate of the young crayfish is increased to 85% or above, and the method is suitable for large-scale and green efficient breeding of the young crayfish in a rice-shrimp rotation mode.

The invention relates to a fish and shrimp growth trend prediction method and device based on a growth model. The method comprises the following steps: determining target fish and shrimp types, culture conditions and day age range data; obtaining weight data of the target fish and shrimp species in each day from the day age range data under the determined culture condition; preprocessing the weight data to obtain preprocessed weight data; determining a nonlinear model with good fitting efficiency in fishes and shrimps; based on the preprocessed weight data, performing modeling through a nonlinear model to obtain a first model, a second model and a third model; obtaining key information based on the first model, the second model and the third model; determining an optimal model in the first model, the second model and the third model based on the key information; and performing growth trend prediction on the target fish and shrimp species under the current culture condition by using the optimal model. The method can assist in determining the growth and development state of the animal, and brings great convenience to related workers.

The utility model relates to a floating type fishing light complementary system net drawing device which comprises a plurality of first rope drawing devices which are evenly distributed on a floating platform in the circumferential direction. The first inhaul cables are evenly distributed in the circumferential direction of the net cage, the lower end of each first inhaul cable is connected with a balance weight device, and the upper end of each first inhaul cable is provided with a first rope collecting device; the second rope winding device is arranged on the floating platform; the middle rope binding part is arranged along the central axis of the counterweight part; the second inhaul cables are evenly connected to the balance weight component, one end of each second inhaul cable is fixedly connected with the balance weight device, and each second inhaul cable extends to the middle rope binding component from the position below the bottom netting, movably penetrates through the middle rope binding component and then extends upwards to the second rope collecting device. The second inhaul cable is tightened, the section, located below the bottom netting, of the second inhaul cable supports the bottom netting, the middle of the bottom netting is high, the periphery of the bottom netting is low, and therefore the fishes and the shrimps are concentrated towards the edge of the bottom netting, and the fishing effect is facilitated.

The invention discloses a large-scale breeding device and method for cherax quadricarinatus. The breeding method comprises the steps of parent shrimp selection and breeding, incubation management and shrimp seed breeding management. Wherein the designed breeding device comprises a hole structure and a shading plate which are bricked in a mating pool, and an inhabiting layer type pore plate for collecting and breeding the young shrimps, so that the mating rate of the parent shrimps, the hatching rate of egg-carrying shrimps and the survival rate of the young shrimps can be effectively increased, the elimination rate of the parent shrimps is greatly reduced, and large-scale production and large-batch emergence of the young cherax quadricarinatus are realized.

The invention discloses an ecological restoration system for mangrove forest wetlands, and relates to the technical field of ecological restoration of coastal wetlands, and the technical key points are as follows: the ecological restoration system comprises an algae-cleaning biocenosis: the number of algae is reduced through salt-tolerant algae-cleaning organisms, and the transparency of a water body is improved; the sea grass plant community comprises Sichuan fructus viticis and halophila acuminata, absorbs eutrophic substances in water through photosynthesis, and further purifies the water quality; aquatic animals comprise fishes, benthonic animals, shrimps and filter-feeding zooplanktons; the mangrove plant community is used for planting bruguiera gymnorrhiza, kandelia candel and aegiceras corniculatum in a layered manner according to tide and water depth so as to realize the functions of purifying water quality of an ecological system and providing a habitat; and the environment monitoring module is provided with tide monitoring equipment, observes tide water level change and salinity and alkalinity, and implements early warning and emergency measures under extreme climate conditions. According to the method, a multi-layer producer community system can be coupled and repaired, the eutrophication problem can be effectively solved by multi-dimensionally improving the biodiversity, and a new method is provided for coastal wetland repair.

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 pretreatment method for efficiently extracting calcium in shrimp and crab shells. The pretreatment method comprises the following steps: carrying out microwave treatment on the shrimp and crab shells until the weight is constant, rehydrating for 10 minutes in a water bath at 90 DEG C, carrying out microwave treatment until the weight is constant, crushing, mixing with an acetic acid solution, stirring, centrifuging, and measuring the calcium concentration. According to the method, through microwave-rehydration-secondary microwave pretreatment, the carapace structure is destroyed, the contact area of organic acid and calcium is increased, the calcium recovery rate is increased, the treatment time is shortened, the energy consumption is reduced, the universality of raw materials is enhanced, comprehensive utilization of resources is facilitated, and the method is environmentally friendly and economical.

The invention relates to the technical field of aquaculture water quality prediction, in particular to a procambarus clarkii aquaculture water quality prediction method fusing LSTM and an Internet of Things sensing network. According to the technical scheme, the method comprises the steps that time sequence water quality parameters of a culture pond are obtained, dynamic sliding window preprocessing is conducted on data, an LSTM prediction model of a mixed gating mechanism is constructed, and a culture equipment control instruction is generated according to a prediction result. Through fusion of the Internet of Things sensing network and the improved LSTM model, the problems of insufficient utilization of spatio-temporal data, weak model adaptability and disjunction of prediction control in a traditional method are effectively solved, spatio-temporal correlation fusion and noise correction of multi-source water quality data are realized, water quality parameters are accurately predicted, the ammonia nitrogen mutation risk is synchronously detected, and the method is suitable for large-scale popularization and application. Therefore, artificial experience driving of breeding management is promoted to be converted into accurate data driving, a real-time dynamic environment regulation and control scheme is provided for healthy growth of shrimps, the breeding risk is remarkably reduced, and the management efficiency is improved.

The invention relates to the technical field of waterfowl habitat recovery, in particular to a geranium wilfordii pause habitat recovery method. The method comprises the steps of selection of a suitable pause habitat, terrain transformation of the pause habitat, vegetation adjustment of the pause habitat, water body control of the pause habitat and specific food source supplementation: small fishes are regularly put and matched with benthic organisms such as shrimps and snails, so that smooth feeding of the geranium wilfordii is effectively ensured, the method is suitable for pause of the geranium wilfordii, and the health of geranium wilfordii populations is favorably improved; and a reference thought and practical reference significance are provided for geranium wilfordii population recovery.

The utility model discloses a shrimp and crab breeding bin and a breeding device. The shrimp and crab breeding bin comprises a bin body (7) serving as a shrimp and crab breeding bin body. The bin body is provided with a water-permeable side wall; n feeding holes (8) are formed in the side wall of the bin body; n is an integer greater than 1; a feed pipe is inserted into the feeding hole, so that bait can enter the bin body through the feed pipe and the feeding hole; and at least one feeding hole is a feeding hole with a block piece. A material pipe fixing piece for fixing a material pipe is arranged at the side part or the upper edge of the bin body; the number of the material pipe fixing pieces is N; the material pipe fixing piece is a pipe clamp or a sleeve and is used for clamping or inserting a material pipe. The shrimp and crab breeding bin and the breeding device are easy to implement and high in breeding efficiency.

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.

[Problem] To provide a method for acclimatizing saltwater shrimps, a method for growing saltwater shrimps by an aquaponics, a system for acclimatizing saltwater shrimps, and an aquaponics, with which it becomes possible to improve the efficiency of land-based aquaculture of saltwater shrimps and surely promote the growing of saltwater shrimps. [Solution] This method for acclimatizing saltwater shrimps A to a low-salt environment is characterized by including a salt concentration reduction step for reducing the salt concentration in rearing water 111 in which the saltwater shrimps A are reared, wherein the salt concentration in the rearing water 111 is reduced by 0.10-0.50 mass% per day. This system 1 for acclimatizing saltwater shrimps is provided with: a storage part 11 for storing rearing water 111 in which the saltwater shrimps A are reared; and a salt concentration reduction part 12 for reducing the salt concentration in the rearing water 111 stored in the storage part 11, wherein the salt concentration in the rearing water 111 is reduced by 0.10-0.50 mass% per day. The rearing water 111 is made into rearing water 112 having a lower salt concentration than that in the rearing water 11 through the salt concentration reduction part 12.

The invention discloses bacillus altitudinis JYD51 and application of the bacillus altitudinis JYD51 in aquaculture, the bacillus altitudinis JYD51 is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.32164, and the preservation date is October 10, 2024. The bacillus altitudinis JYD51 can be applied to aquaculture. The JYD51 strain disclosed by the invention can be fermented by using a culture medium rich in organic matters, and a fermented product of the JYD51 strain has no toxic effect on penaeus vannamei boone and crabs and has the effects of inhibiting infection of enterocytozoon hepatopenaei to the penaeus vannamei boone and inhibiting harm of microsporidia crabs to the crabs. Meanwhile, the microbial agent prepared by compounding the JYD51 strain and the lysinibacillus sphaericus JYQ7 can effectively and cooperatively control the harm of enterocytozoon hepatopenaei and microsporidia crabs, purify the water body environment for growth of the shrimps and the crabs, improve the survival rate of the shrimps and the crabs in aquaculture and improve the product quality.

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 relates to the technical field of fishery breeding, in particular to a feed throwing device and method for fishery breeding, the device comprises a distributing assembly, a feeding assembly and a storage assembly installed on a floating ring, the storage assembly is used for storing bait, the bottom of the storage assembly is communicated with the top of the distributing assembly, and the top of the feeding assembly is communicated with the distributing assembly. A feeding assembly is installed at the bottom of the distributing assembly, the storage assembly comprises a hopper, a water pump is installed at the top of the hopper, the water inlet end of the water pump extends to the bottom end of the distributing assembly through a pipeline and then communicates with the outside, and the water outlet end of the water pump communicates with an inner cavity of the distributing assembly through a pipeline; circulating water is generated through the water pump, the feeding device is placed in a living area of prawns in water, for feeding, the situation that the prawns are grabbed by other fishes or sink to the bottom is reduced, meanwhile, the oxygen content of water is increased, and the cost of oxygen supply equipment is reduced; in the feeding process, bubbles are generated to lift up and float the fly maggots, the swimming characteristic of living bodies is generated, and prawns are attracted to prey quickly.

The invention belongs to the technical field of carbon materials, and relates to a coal tar-based nitrogen-sulfur co-doped porous carbon material and a preparation method thereof.The coal tar-based nitrogen-sulfur co-doped porous carbon material is prepared from waste coal tar as a carbon source, animal hair as a carbon source, a nitrogen source and a sulfur source, shrimp and crab shells as a nitrogen source and a template agent and strong base as an activating agent through hydrothermal carbonization and high-temperature activation. The carbon material with high specific surface area and adjustable pore structure is obtained, and contains a certain amount of heteroatom nitrogen and sulfur. The shrimp and crab shell particles are used as a template agent to provide internal initial pores; in the hydrothermal pre-carbonization process, a high-temperature alkali solution can quickly dissolve hair to form polypeptide substances, so that the polypeptide substances in a pyrolysis product are uniformly mixed with tar, alkali, crustacean particles and the like, and uniform co-doping of nitrogen and sulfur is facilitated. The problems of low carbon production rate, serious graphitization, low porosity, difficulty in directional regulation and control of a pore structure and low content of heteroatoms in tar in the prior art are solved, and the specific surface area of the porous carbon material is increased.

The invention discloses a factory-like breeding facility and method for crayfish fry, and belongs to the technical field of crayfish breeding. The facility comprises a breeding bed frame and a spray seedling cultivation pond, a plurality of breeding cylinders which operate independently are placed on the breeding bed frame, meshes are arranged in the breeding cylinders in the horizontal direction, the breeding cylinders are divided into upper and lower independent spaces including an incubation area and an egg collection area by the meshes, a plurality of groups of shrimp nests placed on the meshes are arranged in the incubation area, and a plurality of shrimp nest units are arranged in each group of shrimp nests; a seedling outlet pipe is arranged at the bottom of the breeding cylinder; the method comprises the following steps: selecting and putting egg-carrying parent shrimps, artificially incubating fry, managing and controlling the incubation process, and collecting the fry. Through precise regulation and control of multiple parameters such as water temperature, dissolved oxygen, pH and the like, parent health management and automatic spray fry collection system integration, optimization of a crayfish industrialized breeding technology is achieved, the survival rate of the parent, the synchronous incubation rate and the hatching rate of fertilized eggs are improved, the specification and quality of spray fry are guaranteed, and therefore the yield and quality of crayfish industrialized breeding are improved.

The invention belongs to the technical field of aquaculture equipment, and discloses shrimp and crab culture feeding equipment based on water quality-weather linkage, which comprises a support base, a feed bin fixedly connected to the top of the support base, and a conveying assembly mounted at the bottom of the feed bin and used for conveying feed and poison bait in the feed bin; the throwing device is arranged in the middle of the supporting base and used for throwing the feed and the poison bait conveyed by the conveying assembly; through cooperation of a rotating plate, a second motor and other structures, the orientation position of the material throwing device is adjusted conveniently, the rotating plate is driven to rotate through a gear at the output end of the second motor and teeth on the outer side of the rotating plate, and the rotating plate drives a supporting rod and a first telescopic rod to drive the material throwing device to rotate; and the orientation of the throwing opening of the throwing device is adjusted, so that non-fixed-point throwing is realized.

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 utility model discloses a multi-station manual shrimp tail peeling workbench, which belongs to the technical field of deep processing of crayfish and comprises a support provided with an operating table. The discharging hopper is arranged and used in cooperation with the waste conveying structure, after shelling is completed, shrimp tail shells can be directly put onto the waste conveying structure through the discharging hopper, the shrimp tail shells are conveyed through a second conveying belt, a collecting box does not need to be manually and regularly cleaned, time is saved, the conveying frame is placed on a transverse rod at the lower end of the support, and the conveying frame is convenient to use. According to the waste conveying device, the waste conveying structure is matched with a connecting angle plate, a first connecting screw and a second connecting screw for use, the stability during use is guaranteed, and the conveying frame is detachably arranged, so that the waste conveying structure is conveniently detached for operation; the special-shaped blocking plate can effectively prevent shrimp tail shells from falling onto the first conveying belt, the purity of shrimp meat on the first conveying belt is guaranteed, follow-up manual cleaning is not needed, and the processing cost is saved.

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 utility model relates to the field of aquaculture, in particular to an aquaculture pond which comprises a pond body, a shrimp shell collecting frame is arranged on the side wall of the pond body, the shrimp shell collecting frame extends to the bottom of the pond through a shrimp shell conveying pipe, and the shrimp shell conveying pipe is connected with an air conveying pipe. When the aquaculture pond is used, the shrimp shell collecting frame is installed on the side wall of the pond body, air is introduced into the shrimp shell conveying pipe through the air conveying pipe, and shrimp shells are conveyed into the shrimp shell collecting frame from the end, extending to the pond bottom, of the shrimp shell conveying pipe in an air stripping mode to be collected. And when the gas stripping effect is insufficient, the gas stripping effect can be improved only by closing the aeration pipe in the tank body. The efficient gas stripping system is used for efficiently separating shrimp shells from the pond bottom in a gas stripping mode, the shrimp shell collecting effect is improved, it is guaranteed that a sewage draining exit at the pond bottom is not blocked by the shrimp shells, the burden of bottom sewage draining is reduced, and the function of an aquaculture system is improved.

The invention relates to the technical field of intelligent feeding for aquaculture, in particular to an intelligent feeding device for aquaculture, which comprises a supporting cross frame, a supporting walking mechanism for supporting the supporting cross frame and a material storage shell arranged on the supporting cross frame, a material inlet is formed in the material storage shell, a material distribution shell is arranged below the material storage shell, and a feeding port is formed in the material distribution shell. A communicating piece is installed between the material distributing shell and the material storing shell, and feed enters the material distributing shell through the communicating piece. A lowering part is arranged on the supporting transverse frame and used for being connected with the material distribution shell; the supporting transverse frame is moved to the position above the aquaculture pond, floating foam on the water surface is intelligently separated and removed through the multiple floating foam removing pieces at the multiple material guiding pipes, and then multi-point and uniform material scattering is conducted on the interior of the aquaculture pond through the material guiding pipes and the material scattering mechanism; the uniformity of automatic feeding of the feed is further guaranteed, and meanwhile it is guaranteed that the shrimps in aquaculture are fully fed.

The invention discloses a method for extracting chitin in shrimp shells by a ball-milling-assisted liquid acid room-temperature one-step method, which comprises the following steps: 1) washing the shrimp shells in boiling water, then taking out, drying to constant weight, crushing and sieving to obtain shrimp shell powder; 2) mixing the shrimp shell powder with 15 wt% HCl, and carrying out ball milling in a zirconium dioxide ball milling tank for 12-16 hours; and (3) after the ball milling is completed, washing the mixed milling product by using deionized water, and drying the solid obtained by washing to constant weight, so as to obtain the chitin product. According to the method, an alkaline reagent is not used, meanwhile, the acid consumption is greatly reduced, additional heating is not needed, and the technological process is shortened. The method has the advantages of simple process, mild conditions, environment friendliness, less waste liquid and the like, and is a green and environment-friendly process system.

The invention discloses a sensor for indicating freshness and a preparation method and application thereof, and belongs to the technical field of food quality monitoring. According to the composite natural pigment colorimetric sensor, hydroxypropyl methyl cellulose and sodium alginate are used as polymer substrates, a film substrate is formed by combining the polymer substrates with a film-forming aid glycerol, and alkannin and curcumin are loaded on the film-forming substrate. The sensor can visually judge or compare the freshness degree of salmon by observing the color change of the intelligent sensor, the freshness change is clear at a glance, the sensor can also be used for detecting the freshness of penaeus vannamei, the application prospect is wide, and a new thought is provided for development and application of a novel aquatic product freshness intelligent response sensor.

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 discloses a freshwater crayfish fry factory-like breeding system and a temperature control and breeding method, and belongs to the technical field of aquaculture. Current freshwater crayfish fry breeding has the problems of difficult anti-season supply, poor water temperature regulation and control, insufficient water resource utilization and the like. According to the technical scheme, the breeding system is characterized in that the breeding system comprising a seed shrimp intensified breeding pond, a mating and egg-carrying pond, a hatching pond, a shrimp seed breeding pond, a tail water treatment pond and the like is constructed, a temperature adjusting device is arranged to control the water temperature, and a preheating water tank, a standby water tank and the like are arranged to achieve cyclic utilization of water and waste heat recovery. The invention further provides a temperature control method and a breeding method. The method is mainly used for realizing factory-like breeding of freshwater crayfish seeds, solving the problems of breeding and supply of out-of-season crayfish seeds, and improving the breeding efficiency and quality.

The invention relates to the technical field of aquatic product fishing tools, in particular to an automatic lifting intelligent shrimp catching cage which comprises an equipment body, an upper computer and a lower computer. The equipment body comprises a shrimp catching cage, a floating ring and an equipment box, a plurality of shrimp inlets are formed in the front side and the rear side of the shrimp catching cage, the left side is rotationally connected with a shrimp outlet door, a pneumatic rod is installed at the top end, the output end of the pneumatic rod is connected with the shrimp outlet door through a connecting rod, and two air pipes b are arranged on the outer side; according to the scheme, the air bag, the pneumatic rod and the related air pipe are arranged in the shrimp catching cage, and equipment such as the air pump and the air distributor is combined, so that automatic lifting of the shrimp catching cage and automatic opening and closing of the shrimp outlet door are achieved; when the cage is placed, the air bag is free of air, and the shrimp catching cage sinks by gravity; when the cage is collected, the air pump conveys air to enable the air bag to expand to drive the shrimp catching cage to float upwards, and then the air channel is controlled to enable the pneumatic rod to open the shrimp outlet door to take shrimps. Therefore, the manual operation links are greatly reduced, the labor intensity is reduced, and the shrimp catching efficiency is improved.

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.