14 results about "Fish quality" patented technology

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.

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 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 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.

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.

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.

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.