25 results about "Fish quality" patented technology

The invention discloses an anti-extrusion method for fishing in a trawl net applied to marine fishery, and aims to solve the problem of quality reduction caused by overstock of fishing objects in traditional trawl net operation. The method comprises the following steps: monitoring physical parameters reflecting the backlog degree of catches in real time by using a distributed sensing array deployed in a trawl bag; the monitoring data is sent to a central decision and control unit, and the central decision and control unit judges whether activation conditions are met or not according to a preset algorithm; when the conditions are met, the micro-fluidic adjusting unit is driven. According to the method, differential target supporting pressure can be calculated and applied to different areas of the skeleton network according to the real-time distribution of the pressure in the net bag, so that a non-uniform supporting structure matched with the pressure distribution is constructed in the net bag. According to the method, passive stress is changed into active support, stress concentration can be effectively relieved, the completeness of catches is protected, and the method has remarkable practical value.

A fish quality determination system includes a first machine learning unit that analyzes, by machine learning, a relationship between image data obtained by imaging a cross section of a fish tail and a region of a fish body in the image data, a data acquisition unit that acquires image data of a cross section of a tail of a determination target fish from a user device, a first estimation unit that estimates a region of a body of the determination target fish and outputs an estimation result, using the image data of the cross section of the tail of the determination target fish acquired by the data acquisition unit as an input, based on the relationship analyzed by the first machine learning unit, a generation unit that generates trimming image data in which a region other than the body of the fish is trimmed from the image data of the cross section of the tail of the determination target fish based on the estimation result by the first estimation unit, and a quality determination unit that determines quality of the determination target fish using the trimming image data.

The application discloses a device for collecting fry and juvenile fish in the main stream of the Yellow River, which comprises a collecting head, a collecting box, a drainage end and a support, the left and right sides of the collecting box are respectively provided with the collecting head and the drainage end, and the collecting box is further provided with the support, the collecting head is a conical cylinder, the large end of the conical cylinder is provided with a multi-hole conical cover which is gathered away from the conical cylinder, the small end of the conical cylinder is communicated with a water inlet pipe of the collecting box, the drainage end is a drainage pipe on the collecting box opposite to the water inlet pipe, a flowmeter and an axial flow pump are arranged on the end of the drainage pipe away from the collecting box, the collecting box is provided with a one-way self-closing structure and a fry and juvenile fish filtering conical cylinder corresponding to the water inlet pipe and the drainage pipe, and the fry and juvenile fish filtering conical cylinder is provided with an induction cylinder on the front and back sides. The device is used for collecting fry and juvenile fish in an active way, and the food induction cylinder is arranged in the collecting box to attract the fry and juvenile fish to stay, so that the fry and juvenile fish can be efficiently collected, and the fish quality resources in the main stream of the Yellow River can be conveniently and quickly monitored.

The present application relates to grouper aquaculture technical field, specifically to a kind of pseudotolithus elongatus wild-like breeding device and method, including frame system and netting system installed on frame system, it is characterized in that, frame system includes platform, the circumferential of platform is equipped with several movable walking frame, walking frame is all connected with the arc-shaped float pipe group, air bag is installed between adjacent float pipe group, air bag is communicated with float barrel, and float barrel is installed at the side of float pipe group far from walking frame;The bionics tube for simulating the wild environment of pseudotolithus elongatus is installed below walking frame;Netting system includes netting and bionic plate installed at the bottom of netting.The present application can improve the survival rate of pseudotolithus elongatus, improve product fish quality, and also can be used for broodstock cultivation.

To provide a fish quality estimation system which can estimate quality of a fish.SOLUTION: The fish quality estimation system estimates quality of a fish from a cross-sectional image of a tail of the fish and comprises: an image acquisition unit which acquires the cross-sectional image of the tail of the fish; an extraction unit which extracts a feature quantity characteristic of the cross-sectional image of the tail of the fish from the image acquired by the image acquisition unit; a machine learning unit which generates a first estimation model by performing machine learning by taking quality information of the fish and the feature quantity extracted by the extraction unit as learning data; and an estimation unit which uses the first estimation model generated by the machine learning unit to estimate the quality of the fish from the image acquired by the image acquisition unit.SELECTED DRAWING: Figure 1

The invention provides an aquaculture AI multi-pond linkage accurate feeding system and method based on progressive residual feed feedback. The feeding system comprises a feeding execution device, a residual feed collection device, a residual feed weighing device and a central controller. The feeding method comprises the steps that basic parameters are collected, and the planned feeding amount is set; feeding in a reference pond; residual feed is collected and weighed; correcting an AI coefficient; and optimizing multi-pond linkage feeding. The weight of the residual feed is directly obtained through the residual feed weighing device, the residual feed is synchronously recycled through the residual feed collecting device, pollution is reduced, a subsequent pool feeding model is optimized in real time by taking the residual feed data of a previous pool as a feedback coefficient, the system breaks through a traditional single-pool independent optimization mode, and by means of an inter-pool progressive learning mechanism, the system is more efficient and efficient. The feed waste rate is reduced from 20% of manual feeding to 1.5%, the feed cost is reduced, the manpower expenditure is reduced, the fish quality is improved so as to adapt to the high-end market, and cost reduction, efficiency improvement and green sustainable development of fishery are promoted.

The invention discloses automatic sauce coating equipment for eel roasting, and relates to the technical field of eel roasting, the automatic sauce coating equipment comprises a base, a roasting groove is transversely arranged in the middle of the base, a heating structure is arranged in the roasting groove, a roasting frame is slidably arranged in the roasting groove and above the heating structure, and a sauce coating structure is arranged on the inner wall of one side of the roasting groove; the sauce coating structure comprises a sauce coating groove, the sauce coating groove is formed in the inner wall of one side of the baking groove and arranged above the baking frame, the sauce storage box is slidably arranged in the sauce coating groove, the driving part is arranged at the top of the side, away from the sauce coating groove, of the base and fixedly connected with the sauce storage box, and the sauce coating units are arranged at the bottom of the sauce storage box at equal intervals and communicated with the sauce storage box. Automatic and uniform sauce coating of eels on the baking frame can be realized; according to the automatic sauce coating equipment for eel baking, accurate conveying of sauce can be achieved, the surface of eel is evenly coated with the sauce, and therefore the quality of the baked eel is guaranteed, and the stability of the product quality is guaranteed.

The present application belongs to the technical field of fish meal rolling, screening and grading, and particularly relates to a fish meal rolling and screening integrated machine and a method for using the same. The integrated machine comprises a box body, a fish meal rolling device, a screening device and a stacking assembly arranged in the box body from top to bottom. The method for using the integrated machine to roll fish meal is as follows: first, the fish meal is rolled by the fish meal rolling device, then the rolled fish meal falls into the screening device for screening, the screened fish meal falls into the stacking assembly below, and finally the stacking assembly sends the fish meal into a discharge port. The present application can realize simultaneous rolling and screening of fish meal, and the screen of the screening machine can be replaced to adapt to the requirements of different raw material fish quality characteristics and meet the requirements of different customer groups on the particle size of fish meal products.

The utility model provides a cave fish living body transport case which comprises a transport case main body, an oxygenation pump and a water tank, a partition plate is fixedly installed on the inner side of the transport case main body, the partition plate divides the transport case main body into a live fish storage area and an equipment area, and the oxygenation pump is arranged in the equipment area. Through mutual cooperation of the oxygenation pump, the aeration assembly, the compressor and the guide-in pipe, the oxygenation pump can be guided into the flow dividing pipe through the communicating pipe, through installation of the aeration assembly, uniform and fine bubbles can be generated, the dissolution efficiency of oxygen in water is improved, it is ensured that oxygen is stably conveyed, the stress influence on fish is reduced, and the fish quality is improved. The concentration of dissolved oxygen in water is monitored in real time through the dissolved oxygen sensor, the oxygenation intensity is automatically adjusted through feedback control, meanwhile, the temperature of water in the live fish storage area can be kept constant through the compressor, the water temperature is kept constant through the heat preservation layer, and the influence of external temperature changes on fishes is prevented.

The invention belongs to the technical field of freshwater fish temporary rearing, and discloses a freshwater fish temporary rearing and quality improving system based on micro-flowing water purification and a rearing method.The system comprises a temporary rearing pond, a first still water pond, a second still water pond, a bottom plate, a stirring assembly, an auxiliary assembly, a medicine adding assembly, a circulating assembly and a filtering assembly; the first still water pool and the second still water pool are fixedly arranged on the opposite sides of the temporary culture pool respectively, one side of the temporary culture pool is communicated with the first still water pool through a first micro drain hole, and the other side of the temporary culture pool is communicated with the second still water pool through a second micro drain hole. Interference of water temperature or pH value fluctuation on normal metabolism of fishes is avoided, the problem of fish quality deterioration caused by unstable temporary rearing environment is effectively relieved, and proper growth and temporary rearing conditions are provided for the fishes.

The utility model discloses a vehicle-mounted composite material fishpond, and relates to the technical field of fish transportation devices, the vehicle-mounted composite material fishpond comprises a water tank, the interior of the water tank is divided into a plurality of breeding cavities, the interior of each breeding cavity is divided into a plurality of small breeding cavities through partition plates, and water passing holes communicated with the small breeding cavities on the two sides of the partition plates are densely distributed in the partition plates; a shielding structure capable of being opened and closed is arranged on the upper portion of each small breeding cavity, and a feeding structure capable of automatically operating is arranged on the side wall of each small breeding cavity. The vehicle-mounted composite material fishpond solves the technical problems that in the prior art, the survival rate of fishes is low in the transportation process, the fishes can be effectively prevented from jumping out of the fishpond in the transportation process, meanwhile, feeding is convenient, the risk that the fishes die or are injured or infected with diseases is effectively reduced, and the fish quality is improved. And the survival rate of the fishes in the transportation process is greatly improved.

The invention belongs to the field of aquatic nutrition, and particularly relates to a quick evaluation method for food calling substances of stress-prone fishes, which comprises the following steps: pouring a mixed solution of agar powder and the food calling substances into a granulation mold to prepare food calling agar particles, and feeding experimental fishes with the food calling agar particles; meanwhile, shooting and recording are carried out, the ingestion reaction of fishes to different food-calling agar particles is observed, the touch number, the swallowing rate and the agar particle rejection frequency of the fishes and the time span from the first time to the last time of touching the agar particles are recorded, and the food-calling performance of the food-calling substances is comprehensively evaluated on the basis. The agar powder is used as a carrier to eliminate interference of other substances, different ingestion responses of fishes are shot and recorded, the ingestion preference of the fishes on the food calling substances in taste sense is intuitively expressed, the screening and evaluation time of the fish food calling substances is saved, the fish stress response is reduced, and the fish quality is improved. Reference is provided for targeted evaluation and screening of the food calling substances of the easily-stressed fishes, and the method is low in cost, short in time and high in accuracy.

This invention provides a method and apparatus for judging the quality of ornamental fish. The method includes: acquiring ornamental fish image data; inputting the ornamental fish image data into an individual recognition model to obtain an individual recognition result; inputting the individual recognition result into a feature extraction model to obtain individual quality features; and inputting the individual quality features into a quality discrimination model to obtain an individual quality discrimination result. The individual recognition model is trained based on ornamental fish image sample data and the corresponding individual recognition results as labels. The feature extraction model is constructed based on computer vision. The quality discrimination model is constructed based on a preset ornamental fish quality discrimination standard. This invention addresses the shortcomings of existing ornamental fish quality discrimination methods, such as high labor costs and significant subjective bias, achieving high efficiency and objective consistency in ornamental fish quality discrimination methods.

The utility model discloses an intelligent aquaculture oxygenation device with a rapid limiting function, and relates to the technical field of aquaculture, the intelligent aquaculture oxygenation device comprises a fixing plate, an air bag is fixedly installed on the outer surface of the fixing plate, a conveying pipe is fixedly installed at the center of the bottom surface of the fixing plate, and an air disc is arranged at the lower end of the conveying pipe; the outer surface of the conveying pipe is sleeved with a fixing pipe, the fixing pipe is fixedly connected with the air disc, the lower end of the conveying pipe is fixedly connected with the fixing pipe through a connecting plate, a plurality of water inlet grooves are formed in the outer surface of the upper end of the fixing pipe, and the water inlet grooves are circumferentially distributed about the center line of the fixing pipe; a conical pipe is fixedly mounted on the upper surface of the fixing plate corresponding to the conveying pipe, the conical pipe is communicated with the conveying pipe, and in culture of a large pond, the machine can keep the content of dissolved oxygen in water in multiple areas at the same time, so that the balance of the dissolved oxygen in water flow in the pond is ensured, and the uniformity of fish quality is further ensured.

The present application relates to the technical field of food quality detection, in particular to a fish freshness evaluation method and system, comprising: obtaining hyperspectral reflectance curve, surface texture microscopic image and volatile odor substance concentration spectrum of the fish to be measured, extracting protein degradation characteristic spectral absorption band, microstructure integrity multi-level entropy set and microbial metabolism indicative odor fingerprint. The three types of characteristics are input into an improved fusion evaluation algorithm, which adopts a weighted decision fusion framework, introduces a time decay factor dynamic weight distribution and a feature reliability adaptive correction mechanism, and outputs a dynamic freshness quantitative index and a shelf life stage label through feature-level fusion and time series evolution analysis. The present application can match the time sequence change of fish quality, weaken the interference of characteristic fluctuation, and improve the stability and accuracy of the evaluation result.

The invention discloses a live fish sorting control system and method, and the system comprises a fish collection control module which is used for classifying live fishes; the distance pulling module is controlled by the PLC and used for controlling the distance pulling process of the live fishes to be sorted; the weighing module comprises a plurality of weighing sensors, and the weighing sensors are distributed in a matrix mode and used for obtaining the mass of the live fishes to be sorted in real time; the sorting module comprises a plurality of sorting stations and is used for sorting different grades of live fishes; and the logic control module establishes communication connection among the fish gathering control module, the pulling distance module, the weighing module and the sorting module through online starting signals. According to the method, the sorting efficiency and precision are greatly improved, multi-dimensional data such as the body type and the weight of the live fish are captured in real time through the multi-sensor matrix, errors caused by traditional single-point weighing are eliminated, flexible sorting strategy adjustment is supported, and the differentiated requirements of different markets for the quality of the live fish are met.

This fish quality estimation system is for estimating the quality of fish from a cross-sectional image of a fish tail, and comprises: an image acquisition unit that acquires a cross-sectional image of a fish tail; an extraction unit that extracts, from the image acquired by the image acquisition unit, a feature amount which is characteristic of the cross-sectional image of the fish tail; a machine learning unit that generates a first estimation model by performing machine learning using fish quality information and the feature amount extracted by the extraction unit as learning data; and an estimation unit that estimates, using the first estimation model generated by the machine learning unit, the quality of the fish from the image acquired by the image acquisition unit.

The application belongs to the method for improving fish quality. A method for improving the quality of fresh fish by using a composite curing agent, characterized in that it comprises the following steps: 1) raw material treatment: take fresh hypophthalmichthys nobilis, remove scales, remove internal organs, wash and cut into uniform small pieces to obtain hypophthalmichthys nobilis meat; 2) preparation of protease solution; 3) extraction of tea leaf extract; 4) preparation of composite curing agent: according to 100g of hypophthalmichthys nobilis meat, 1.5g of tea leaf extract, 0.5g of protease solution and 2.0g of salt, select the tea leaf extract, the protease solution and the salt, and mix to obtain the composite curing agent; 5) curing of fresh fish: according to the proportion described in step 4), take the hypophthalmichthys nobilis meat, add the composite curing agent, and mix thoroughly until slime appears on the surface of the fish meat; use a container to fill, wrap the container opening with preservative film, seal and place in a 4℃ refrigerator for cold storage for 4d. The method has a good synergistic deodorization and quality improvement effect on fresh fish.

The application discloses a feed composition for fish culture and application and culture method thereof. The feed composition contains the following components in parts by weight: fish meal 20-40 parts, soybean meal 10-22 parts, food leaf grass 12-28 parts, gluten 1-8 parts, cassava starch 12-28 parts, secondary powder 3-12 parts, fish oil 2-10 parts, calcium dihydrogen phosphate 0.5-4 parts, vitamin and mineral premix 0.5-4 parts, and choline chloride 0.2-3 parts. The feed composition can be used for reducing fish earthy smell and improving fish quality. The culture method comprises the following steps: feeding the fish with the feed composition 6 weeks (preferably 4 weeks) before the fish go out of the pond, and no water hanging treatment is needed. The application can obtain high-quality fish without smell, compact meat and delicious flavor under the conditions of no feeding, no water hanging and pond changing and no facility increasing, meanwhile, the weight loss of the fish is avoided, and the economic effect is remarkable.

This invention discloses a method, system, electronic device, and medium for early warning of abnormal fish activity, relating to the field of intelligent fish farming technology. The method includes: inputting a target video into a multi-target fish tracking model to obtain the basic parameters of each fish in each frame of the target video; using the tracking displacement of each fish to correct the offset of the detection box of each fish, obtaining the bounding box of each fish; processing the center point coordinates of the bounding box of each fish using a data-for-association method to obtain a final trajectory set; obtaining the fish activity level based on the fish's mass and the center point coordinates of each bounding box in the final trajectory; summing the activity levels of each fish in the target video to obtain the activity level of the fish school in the target video; if the activity level of the fish school in the target video is not within a set activity level range, then the activity level of the fish school in the target video at the current moment is judged to be abnormal. This invention can replace manual observation and early warning of fish activity in real time.

The invention discloses a multi-modal fusion-based fish quality evaluation method, which comprises the following steps of: 1, acquiring a reflection spectrum image of a fish sample by adopting a hyperspectral imaging system, and constructing a visual feature matrix; 2, collecting volatile compounds of the fish samples through a novel electronic nose and GC-MS to form a comprehensive olfactory feature matrix; 3, after the visual feature matrix in the step 1 and the comprehensive olfactory feature matrix in the step 2 are standardized, alignment and fusion are carried out in an implicit space to obtain a multi-modal feature data set, the multi-modal feature data set is input into a multi-modal fusion evaluation model, and after prediction and exception elimination, the multi-modal fusion evaluation model is obtained. And outputting a fish quality detection result. According to the method, spectral features and smell features of fishes are synchronously collected, a correlation model is constructed by adopting a multi-modal fusion strategy, the problem that a single technology is insufficient in capacity of distinguishing complex fish samples is solved, and the method has the advantages of being rapid, free of damage, accurate, convenient, accurate in multi-modal fusion prediction and the like.

The utility model relates to the field of fish food feeding equipment, and discloses a feeding device for pond fish culture, which comprises a top box, and a mixing mechanism is arranged in the top box; the mixing mechanism comprises a first protection box, a first motor, two connecting plates and two first bevel gears, the left side wall of the first protection box is fixedly connected to the right side wall of the top box, the first motor is fixedly connected to the interior of the first protection box, and the output end of the first motor is fixedly connected with a first rotating rod. By means of the arranged mixing mechanism, the problems that nutritional ingredients of feed fed by fishes every time are not uniform, maintenance cost and time are increased, and the overall feeding efficiency is reduced can be solved, the stirring blocks are fixed to the inner walls of the connecting plates, and therefore the mixing uniformity of the compound feed with multiple ingredients is effectively improved, and the feeding efficiency is improved. The fish quality and yield are improved, frequent blockage cleaning is reduced, and the continuity of the feeding process is guaranteed.

The invention relates to the technical field of fish meat quality evaluation, in particular to a fish meat evaluation method, which comprises the following steps: appearance characteristic determination: determining the shape and chromaticity of fish meat; tactile feature determination: determining the texture, water-holding capacity and coarse components of the fish meat; gustation feature determination: determining the gustation features of the fish meat; determining smell characteristics: extracting volatile substances of the fish meat, performing chromatography-mass spectrometry analysis, then determining compounds, calculating an odor activity value OAV according to the content values of the compounds, calculating a relative contribution degree ROC according to the odor activity value, and taking the first several compounds with the highest ROC as characteristic data; the calculation formula of the odor activity value is OAV = compound concentration / odor threshold value of the compound; the calculation formula of the relative contribution degree is ROC (%) = OAVi / OAVt * 100%. According to the method, a relatively complete fish quality evaluation method is constructed, and the quality of the same kind of fishes from different sources can be accurately evaluated.

This utility model discloses a golden croaker rearing device, relating to the technical field of fish rearing devices. It includes a first rearing pond filled with water for raising golden croakers; a net horizontally arranged within the first rearing pond, capable of moving up and down to drive the golden croakers to the bottom; and a pressurization pipe connected at one end to the first rearing pond and at the other end to a second rearing pond, capable of transporting the water from the first rearing pond to the second rearing pond at a set flow rate and pressure, and transporting the golden croakers from the first pond to the second rearing pond. The golden croaker rearing device provided by this utility model can promote the movement of the golden croaker swim bladder under stress conditions such as water depth, water flow, and water pressure, thereby improving the swim bladder quality and overall fish quality.

The invention discloses a sgRNA combination for targeted knockout of an FABP3 gene and application of the sgRNA combination in fish quality improvement, and relates to the technical field of genetic engineering and aquatic breeding. The invention specifically relates to three specific sgRNA sequences T1: SEQ ID NO: 1; t2: SEQ ID NO: 2; t3: SEQ ID NO: 3, which targets the exon1 and exon3 regions of the FABP3 gene; the invention also provides a CRISPR / Cas9 gene editing system containing the sgRNA, and a method for knocking out the FABP3 gene by using the system. The sgRNA / Cas9 compound is introduced into a zebrafish embryo through microinjection, and a zebrafish strain with the FABP3 gene knocked out can be obtained; the strain shows the characteristics that the intramuscular fat content is obviously increased and the abdominal fat deposition is obviously reduced, and the fish meat quality is effectively improved; the method has the advantages of being high in editing efficiency, good in genetic stability, short in breeding period and the like, and a new technical means is provided for fat metabolism regulation and control of aquatic animals and high-quality variety breeding.