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74 results about "Sturgeon" patented technology

Sturgeon is the common name for the 27 species of fish belonging to the family Acipenseridae. Their evolution dates back to the Triassic period some 245 to 208 million years ago. The family is grouped into four genera: Acipenser, Huso, Scaphirhynchus and Pseudoscaphirhynchus. Four species may now be extinct. Two closely related species, Polyodon spathula (American paddlefish) and Psephurus gladius (Chinese paddlefish, possibly extinct) are of the same order, Acipenseriformes, but are in the family Polyodontidae and are not considered to be "true" sturgeons. Both sturgeons and paddlefish have been referred to as "primitive fishes" because their morphological characteristics have remained relatively unchanged since the earliest fossil record. Sturgeons are native to subtropical, temperate and sub-Arctic rivers, lakes and coastlines of Eurasia and North America.

Primer combination and kit for identifying genetic sex of sturgeon, and use thereof

The present application provides a primer combination and a kit for identifying the genetic sex of sturgeon, and a use thereof. Using two pairs of primers can not only identify the genetic sex of sturgeon in a simple and rapid manner, but also effectively avoid the experimental errors, thereby improving the accuracy of sturgeon sex identification. At the same time, the present application is not limited by the age of sturgeon and would not cause significant damage to the sturgeon. It also has good universality and may provide assistance for sex-controlled breeding of sturgeon and protection and utilization of germplasm resources.
Owner:CHINESE STURGEON RES INST OF CTG

Multi-target tracking-based sturgeon residual feed dynamic counting method

The invention discloses a sturgeon residual feed dynamic counting method based on multi-target tracking. The sturgeon residual feed dynamic counting method comprises the following steps that S1, video data of residual feed in water flow is collected at a water changing opening of a sturgeon culture pond through an overwater camera; s2, optimizing the quality of the acquired image through an image enhancement technology; s3, a YOLO model is adopted as a detector, accurate detection of residual bait is achieved, and stable tracking is conducted on the residual bait through an improved SORT algorithm; and S4, carrying out accurate statistics on the tracking result based on the dynamic counting line. The method is suitable for residual feed counting in sturgeon industrial culture, accurate data support can be provided for bait feeding management, the bait utilization efficiency is optimized, the culture cost is reduced, and efficient technical guarantee is provided for intelligent aquaculture.
Owner:SICHUAN AGRI UNIV

Method for separating and transplanting spermatogonial stem cells of Chinese sturgeons

The invention discloses a method for separating and transplanting spermatogonial stem cells of Chinese sturgeons, and belongs to the technical field of separation of germline stem cells of fishes. The separation method comprises the following steps: washing Chinese sturgeon testis tissues with an L-15 culture medium containing penicillin / streptomycin double antibodies, and carrying out physical shearing, digestive enzyme enzymolysis and screen filtration to obtain a Chinese sturgeon testis cell suspension; performing percoll density gradient centrifugation to obtain high-purity spermatogonial stem cells of the Chinese sturgeons; and dyeing, washing, resuspending and carrying out micro-injection transplantation to enter the gonad primordium reproductive ridge part of the juvenile acceptor fish. According to the physical characteristics of the spermatogonial stem cells of the Chinese sturgeons, the spermatogonial stem cells with high purity are obtained by adopting percoll density gradient centrifugation, and the purpose of abdomen borrowing reproduction is achieved by adopting a microinjection mode, so that the preservation of germ cells of endangered fishes and the reconstruction of artificial populations are realized; and a new technical approach is provided for protecting genetic resources of the Chinese sturgeons and breaking through artificial propagation bottlenecks.
Owner:SHANGHAI AQUATIC WILDLIFE CONSERVATION RES CENT

Primer and kit for detecting wild Chinese sturgeon DNA (deoxyribonucleic acid) and application of primer and kit

The invention provides a primer and a kit for detecting DNA of wild Chinese sturgeons and application of the primer and the kit, the primer for detecting the DNA of the wild Chinese sturgeons comprises T4-F3, T4-B3, T4-FIB and T4-BIP, the nucleotide sequence of the T4-F3 is as shown in SEQ ID No.1, the nucleotide sequence of the T4-B3 is as shown in SEQ ID No.2, the nucleotide sequence of the T4-FIB is as shown in SEQ ID No.3, and the nucleotide sequence of the T4-BIP is as shown in SEQ ID No.4. On the basis of a traditional LAMP technology, a set of Chinese sturgeon species specificity detection primers is designed, and a method for rapidly detecting Chinese sturgeon traces through LAMP amplification by directly and simply treating an environmental sample without nucleic acid extraction is further developed.
Owner:WUHAN BIOAVIFAN BIOTECHNOLOGY CO LTD

Generative confrontation and YOLO model-based sturgeon hunger state detection method

The invention relates to the technical field of aquaculture intelligence, and particularly discloses a sturgeon starvation state detection method based on generative adversarial and a YOLO model, and the method comprises the following steps: S1, collecting video image data of residual feed and feeding conditions in water flow in a sturgeon culture pond through an underwater camera; s2, optimizing and expanding the acquired video image data through the improved generative adversarial network to obtain an expanded data set; s3, carrying out pre-training on the improved YOLO-v8 model, and carrying out detection on the optimized and expanded image data in the expanded data set by utilizing the YOLO-v8 model obtained by pre-training; s4, evaluating the feeding state and the hunger state of the sturgeons. The method is suitable for residual feed statistics and fish hunger state analysis in sturgeon industrial culture, accurate data support is provided for feed feeding management, the feed utilization efficiency is optimized, the culture cost is reduced, and efficient technical guarantee is provided for intelligent aquaculture.
Owner:SICHUAN AGRI UNIV

Sturgeon belly cutting device

ActiveCN223008329UFish work-tablesActivated carbonWastewater
The utility model is suitable for the technical field of sturgeon belly cutting, and provides a sturgeon belly cutting device which comprises a belly cutting table, the inner side wall of the belly cutting table is fixedly connected with a supporting block, the bottom of the belly cutting table is provided with a through groove, the top of the supporting block is movably connected with a grid plate, the bottom of the belly cutting table is movably connected with a telescopic pipe, and the telescopic pipe is fixedly connected with the supporting block. By means of a grid plate arranged in the belly cutting table, residual fish corners and minced meat can be collected and filtered when sturgeons are cut, the fish corners and the minced meat are prevented from falling into the telescopic pipe, meanwhile, waste water can enter the collecting box through the telescopic pipe for unified treatment during flushing, and the waste water can be recycled. And a filter screen is mounted in the collecting box, so that broken slag in the convected wastewater can be filtered again, and during secondary utilization, adsorption treatment can be performed through two activated carbon plates arranged in a round pipe, so that the wastewater can be deodorized, the use is convenient, and the cost and resource waste are effectively reduced.
Owner:HUBEI QINGJIANG STURGEON FISHERY DRAGON CO LTD

Sturgeon fry swimming posture monitoring method and device

The invention provides a sturgeon fry swimming posture monitoring method and device, and relates to the technical field of agricultural cultivation, and the method comprises the steps: obtaining a moving image sequence of sturgeon fries in a fixed water body area; for each moving image, white contour features used for representing the surfaces of the abdomen parts of the sturgeon fries are recognized; determining the center of the maximum inscribed circle of the white contour feature, and determining the center offset rate of the center of the circle relative to the calibration point and the radius change rate of the maximum inscribed circle in the movable image sequence; determining the white contour features with the circle center offset rate smaller than an offset threshold value and the radius change rate smaller than a change threshold value as a concerned target; and when the longest duration of the attention target in the moving image sequence is greater than an alarm threshold value, determining that the swimming posture of the sturgeon fry corresponding to the attention target is abnormal. The method is used for solving the problems that manpower is consumed and the abnormal swimming postures of the sturgeon fries cannot be effectively judged when the swimming postures of the sturgeon fries are manually judged.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES +1

Sturgeon culture water quality timing sampling device and use method thereof

The invention discloses a sturgeon culture water quality timing sampling device and a use method thereof. The sturgeon culture water quality timing sampling device comprises a machine body (1), and the machine body (1) is provided with a storage mechanism and a water pumping mechanism for conveying a water sample to the storage mechanism; the storage mechanism comprises a storage disc (2), a plurality of groups of storage bottles (3) which are uniformly distributed are arranged on the storage disc (2), a rotating shaft (4) is arranged below the storage disc (2), a driven gear (5) is fixedly connected outside the rotating shaft (4), a driving gear (6) and a driven disc (7) which is coaxially arranged with the driving gear (6) are arranged on one side of the driven gear (5), a matching groove (8) is formed in the edge of the driven disc (7), and a driving disc (9) for driving the driven disc (7) to rotate is arranged on one side of the driven disc (7); and a driving rod (10) corresponding to the matching groove (8) is arranged on the driving disc (9). The water taking device can take water regularly and is good in reliability.
Owner:HANGZHOU QISHENG STURGEON TECHNOLOGY CO LTD

Liftable sturgeon culture net cage

The utility model relates to the technical field of sturgeon culture net cages, and discloses a liftable sturgeon culture net cage which comprises an upper frame body, a lower frame body is arranged below the upper frame body, nettings are arranged between the upper frame body and the lower frame body and in the lower frame body, a lifting mechanism is arranged at the top of the upper frame body, and a lifting mechanism is arranged at the bottom of the lifting mechanism. The lifting mechanism comprises two L-shaped rods fixedly installed on the back face of the upper frame body, a top plate is fixedly installed at the tops of the two L-shaped rods, and a double-end servo motor is fixedly installed at the top of the top plate. By arranging the double-end servo motor, the rotating shaft, the winding disc and the steel wire rope, the two mounting plates can be driven to move upwards, and the two mounting plates can drive the lower frame body to move upwards, so that sturgeons in the net cage float upwards under the driving of the lower frame body, and the sturgeons in the net cage are further conveniently fished; and after fishing is completed, the interior of the net cage can be conveniently cleaned.
Owner:HUBEI QINGJIANG ACIPENSER VALLEYS SPECIAL FISHERY CO LTD

Intelligent all-time sturgeon and guinea pig monitoring method and system

The invention relates to the technical field of fish monitoring, and discloses an intelligent all-time sturgeon and guinea pig monitoring method and system, and the method comprises the steps: carrying out the video stream preprocessing of the video stream data of sturgeons and guinea pigs, and obtaining the fluid video images of sturgeons and guinea pigs; inputting the fluid video pictures of the sturgeons and the guinea pigs into target detection models of the sturgeons and the guinea pigs to obtain target detection results of the sturgeons and the guinea pigs; tracking sturgeon and guinea pig targets based on the sturgeon and guinea pig target detection results to obtain sturgeon and guinea pig target tracking results; performing quantity statistics on the sturgeon and guinea pig targets based on the target detection results of the sturgeons and guinea pigs to obtain target statistical results of the sturgeons and guinea pigs; and determining sturgeon and guinea pig monitoring results based on the sturgeon and guinea pig target detection results, the sturgeon and guinea pig target tracking results and the sturgeon and guinea pig target statistical results. The sturgeon and guinea pig monitoring system improves the sturgeon and guinea pig monitoring efficiency, real-time performance and range, and reduces the monitoring cost.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD

Fish handle cover

1. The name of the design product: clamp handle sleeve (sturgeon). 2. The use of the design product: used in the clamp handle. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.
Owner:ZHANGJIAGANG ENRIT HYDRAULIC PARTS MFG CO LTD

A sturgeon sex identification aid device

ActiveCN224419777UWater useWater resources
This utility model discloses an auxiliary device for distinguishing the sex of sturgeon, including a workbench. A water trough plate is fixedly connected to the bottom surface of the workbench, and a circulation component is provided on the bottom surface of the water trough plate. A support plate is fixedly connected to the top surface of the workbench, and a hydraulic rod is fixedly connected to the top surface of the support plate. Through the circulation component, this utility model allows water to be sprayed onto the sturgeon by a nozzle during use. The water flows from the water outlet into the interior of the water trough plate, through the outlet pipe into the interior of the filter box, where it is filtered by a filter screen. The filtered water then enters the interior of a storage tank. A water pump transports the water from the storage tank through the inlet pipe to the interior of the placement rack, where the nozzle sprays water onto the sturgeon again, thus forming a complete water circulation system. This achieves water resource reuse, saving water costs and providing a stable and clean water environment for sturgeon identification.
Owner:DANGYANG JINYI FISHERY CO LTD

Sturgeon rollover detection method and system based on deep learning and ellipse fitting

The invention provides a sturgeon rollover detection method and system based on deep learning and ellipse fitting. The method comprises the following steps: acquiring a sturgeon image and preprocessing the sturgeon image; performing semantic segmentation on the preprocessed sturgeon image by using a pre-trained deep learning model; according to the semantic segmentation result, binary masks of the back area and the belly area of each sturgeon are generated, and noise areas in the masks are removed through morphological processing and connected domain analysis; respectively performing ellipse fitting on the denoised back and belly region pixel sets of each sturgeon, extracting long axis direction angles of the back and belly ellipses of each sturgeon, further calculating a rollover angle, and judging whether the sturgeon has rollover or not and the rollover degree according to the rollover angle; according to the method, high-robustness and high-precision automatic monitoring can be realized in complex environments such as strong light reflection and turbid water quality, so that the manual inspection cost is remarkably reduced, the culture efficiency is improved, and sturgeon health and caviar production quality are guaranteed.
Owner:GUANGDONG OCEAN UNIVERSITY

Chinese sturgeon gender identification method and Chinese sturgeon gender identification model training method

The invention provides a Chinese sturgeon sex determination method and a Chinese sturgeon sex determination model training method.The method comprises the steps that first preprocessing and second preprocessing are conducted on a to-be-detected image, a first input image and a second input image are obtained, and the first preprocessing is used for enhancing individual morphological features of female fishes and male fishes; the first input image and the second input image are subjected to gender identification through a Chinese sturgeon gender identification model, a first identification result, a first confidence coefficient, a second identification result and a second confidence coefficient are obtained, and the Chinese sturgeon gender identification model is trained based on a target detection algorithm; the training set comprises a female fish annotation image subjected to first preprocessing and a male fish annotation image subjected to second preprocessing; and taking one of the first identification result and the second identification result with higher confidence as a final identification result. By means of the method, the accuracy and efficiency of Chinese sturgeon sex identification can be further improved by means of the target detection technology.
Owner:THREE GORGES HI TECH INFORMATION TECH CO LTD

Sturgeon larvae swimming posture monitoring device

ActiveCN224684247USturgeonWorkstation
The utility model provides a kind of sturgeon fry swimming posture monitoring device, device includes: fixed plate, calibration plate, sleeve, camera platform, camera, workstation, light buzzer alarm.The utility model's device is set fixed plate and calibration plate in the water bottom plane of sturgeon fry breeding water body area, using fixed plate and sleeve support the camera platform above water surface, and the image is automatically collected by camera to sturgeon fry breeding water body area, the monitoring to sturgeon fry swimming posture is realized.In addition, the camera on camera platform is connected to workstation by network cable, and workstation is connected to light buzzer alarm by serial line, to complete the real-time upload and processing of image, and the monitoring result of sturgeon fry swimming posture is real-time warning by light buzzer alarm, overcome the qualitative defect that artificial patrol cannot objectively and accurately to sturgeon fry appears swimming posture abnormal behavior.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES +1

Underwater pollution source sniffing device based on sturgeon nasal cavity bionics

The application discloses an underwater pollution source sniffing device based on sturgeon nasal cavity bionics. In view of the problems of high energy consumption, loud noise, dependence on manual operation, and difficulty in quickly and accurately identifying and positioning the pollution source of the traditional water quality monitoring technology, the passive sniffing device developed by the application integrates a sturgeon nasal cavity sniffing system, an underwater propulsion system and a rudder system. The sturgeon nasal cavity structure can optimize the flow field and efficiently capture the pollution source information in water; the underwater propulsion system is responsible for realizing the movement of the device, and the rudder system cooperates with the electric control system to realize accurate control of turning; the three cooperate to form a passive sampling design, which effectively reduces the energy consumption and noise. The design not only improves the efficiency and sensitivity of pollution source monitoring, but also guarantees the stable operation of the device, and provides a feasible solution for efficient monitoring and accurate positioning of underwater pollution sources.
Owner:JILIN AGRICULTURAL UNIV

Portable preservation device for sturgeon roe samples

ActiveCN223799140UDead animal preservationPaddlefishSturgeon
The utility model discloses a portable preservation device for sturgeon roe samples, which belongs to the technical field of biological sample preservation equipment and comprises a preservation box body, a sealing cover plate is arranged on the upper surface of the preservation box body, an operating handle is fixedly mounted on the upper surface of the sealing cover plate, and damping spring columns are fixedly mounted at the bottom of the inner wall of the preservation box body. A storage box is fixedly installed on the upper surfaces of the damping spring columns, and a semiconductor refrigeration device is fixedly installed on the lower surface of the storage box. According to the portable storage device for the sturgeon roe samples, the rotating motor is arranged to drive the rotating fan blades to rotate, the temperature of the storage box can be accurately controlled in cooperation with the semiconductor chilling plate, the heat dissipation fins and the heat conduction frame, it is ensured that the sturgeon roe samples are always in a proper low-temperature environment, and the biological activity of the sturgeon roe samples is effectively maintained; the roe activity reduction and even death caused by temperature change are effectively avoided, and the sturgeon roe can be better transported and stored.
Owner:WEIFANG UNIV OF SCI & TECH

A quorum sensing inhibitor and its application in the preservation of sturgeon

The present application relates to the low-temperature food preservative and fresh-keeping technical field, and particularly provides a quorum sensing inhibitor and its application in sturgeon preservative and fresh-keeping, specifically, the fresh-keeping method of vacuum packaging sturgeon provided by the present application comprises the following steps: placing the sturgeon into a resveratrol solution with a concentration of 0.1 mM-0.5 mM at 0-4 DEG C, taking out and draining, and vacuum packaging.The present application utilizes the quorum sensing inhibition effect of resveratrol to provide an efficient, green and safe preservative and fresh-keeping technology for low-temperature storage food, especially sturgeon, without adding chemical preservatives.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES

Chinese sturgeon parent fish quality model system established based on noninvasive sample data

The invention relates to the technical field of aquaculture, in particular to a Chinese sturgeon parent fish health assessment method based on blood data. Comprising the following steps: collecting blood of parent Chinese sturgeons to construct a biochemical index data set, and preprocessing; and selecting a machine learning model to construct a Chinese sturgeon parent fish health model, inputting the preprocessed biochemical index data set into the health model for training, and adopting cross validation to obtain an optimal Chinese sturgeon parent fish health prediction model. Health assessment of the Chinese sturgeon parent fish is achieved through the optimal Chinese sturgeon parent fish health model and the health score. Health modeling is carried out based on biochemical indexes of blood of parent Chinese sturgeons. The model system can predict the health state of the Chinese sturgeon parent fish and warn the health problem in time, thereby having important significance for improving the health level of the parent fish.
Owner:SHANGHAI OCEAN UNIV

A Dynamic Counting Method for Uneaten Food in Sturgeon Based on Multi-Target Tracking

This invention discloses a dynamic counting method for uneaten feed in sturgeon based on multi-target tracking, comprising the following steps: Step S1: Collecting video data of uneaten feed in the water flow at the water exchange inlet of the sturgeon breeding pond using an underwater camera; Step S2: Optimizing the quality of the acquired images using image enhancement technology; Step S3: Using a YOLO model as a detector to achieve accurate detection of uneaten feed, and using an improved SORT algorithm to stably track the uneaten feed; Step S4: Performing precise statistical analysis on the tracking results based on a dynamic counting line. This invention is applicable to uneaten feed counting in industrialized sturgeon farming, providing precise data support for feed feeding management, optimizing feed utilization efficiency, reducing farming costs, and providing efficient technical support for intelligent aquaculture.
Owner:SICHUAN AGRI UNIV

Cortex magnoliae officinalis fermented feed for feeding cold water fish as well as preparation method and application of cortex magnoliae officinalis fermented feed

The invention discloses a mangnolia officinalis fermented feed for feeding cold water fish and a preparation method and application thereof, and the mangnolia officinalis fermented feed comprises the following components in percentage by weight of sturgeon feed: 50-65% of mangnolia officinalis, 10-15% of astragalus membranaceus, 15-10% of scutellaria baicalensis, 10-5% of cortex moutan, 5-10% of rhizoma atractylodis and 30-38% of bacterial liquid. Washing the mangnolia officinalis, the astragalus membranaceus, the scutellaria baicalensis, the cortex moutan and the rhizoma atractylodis, air-drying, mixing and grinding into mixed powder which can pass through a 200-mesh sieve; adding compound probiotics into distilled water, activating, and mixing with the compound enzyme preparation to obtain bacterial liquid; and putting the mixed powder, the bacterial liquid and the sturgeon feed into a biological fermentation bag, and fermenting to obtain the magnolia officinalis fermented feed. The mangnolia officinalis fermented feed disclosed by the invention has a prevention and treatment effect on the sturgeon bloating disease, and can improve the intestinal tract and the digestive ability thereof and enhance the immunity of the organism.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Underwater pollution source sniffing device based on sturgeon nasal cavity bionics

The invention discloses an underwater pollution source sniffing device based on sturgeon nasal cavity bionics. Aiming at the problems of high energy consumption, high noise, dependence on manual operation, difficulty in quickly and accurately identifying and positioning a pollution source and the like in the traditional water quality monitoring technology, the passive sniffing device researched and developed by the invention integrates a sturgeon nasal cavity simulation sniffing system, an underwater propulsion system and a rudder system. Wherein the sturgeon nasal cavity imitating structure can optimize a flow field and efficiently capture pollution source information in water; the underwater propulsion system is responsible for realizing device movement, and the rudder system is matched with the electric control system to realize accurate steering control; the three components cooperate to form a passive sampling design, so that energy consumption and noise are effectively reduced. According to the design, the pollution source monitoring efficiency and sensitivity are improved, stable operation of the device is guaranteed, and a feasible solution is provided for efficient monitoring and accurate positioning of the underwater pollution source.
Owner:JILIN AGRICULTURAL UNIV

A water purification device for sturgeon farming

ActiveCN224419797UInlet valveWastewater
This utility model discloses a water purification device for sturgeon farming, including a housing with an inlet pipe extending through one side of the housing. Through the filtration mechanism, a water pipe is installed on one side of the housing, connecting to a filter drum. An inlet valve is also installed outside the water pipe. When the inlet valve is opened, water from the fishpond enters the filter drum through the water pipe. A filter screen is installed around the filter drum to trap impurities inside. Furthermore, a cleaning pipe and a cleaning valve are installed at the bottom of the water pipe. Closing the inlet valve and opening the cleaning valve allows wastewater to be discharged from the filter drum. This effectively filters impurities from the water and prevents their accumulation, which would otherwise hinder efficient separation and increase the load on subsequent treatment processes, affecting filtration quality and efficiency, and increasing the cost and difficulty of equipment maintenance and replacement.
Owner:DANGYANG JINYI FISHERY CO LTD

Sunshade equipment for sturgeon culture

The utility model discloses sunshade equipment for sturgeon culture, which comprises a support (1), the support (1) is arranged on the upper side of a fish pond, a first mounting seat (2) and a second mounting seat (3) are respectively arranged at the front end and the rear end of the support (1), a first wind-up roller (7) is arranged on the first mounting seat (2), a first sunshade curtain (8) is arranged outside the first wind-up roller (7), a motor (9) for driving the wind-up roller (7) to rotate is arranged on one side of the first wind-up roller (7), and a second sunshade curtain (8) is arranged on the other side of the first wind-up roller (7). A second winding roller (10) is arranged on the second mounting base (3), a second sunshade curtain (11) is arranged on the second winding roller (10), coil springs (12) are arranged on the two sides of the second sunshade curtain (11), the length of the coil springs (12) is larger than that of the second sunshade curtain (11), and the ends of the coil springs (12) are connected with the first sunshade curtain (8). The sunshade effect can be effectively improved, and the fish culture effect is improved.
Owner:HANGZHOU QISHENG STURGEON TECHNOLOGY CO LTD

Stretcher for transporting adult Chinese sturgeons

ActiveCN223380715UClimate change adaptationStretcherSturgeonLinen cloth
The utility model provides a transport stretcher for adult Chinese sturgeons. The transport stretcher for the adult Chinese sturgeons comprises two stretcher rods and stretcher cloth connected between the two stretcher rods. The stretcher rods are hollow telescopic rods or are formed by assembling a plurality of sections of hollow steel pipes end to end; the stretcher cloth is rectangular cotton and linen cloth, the left side and the right side of the stretcher cloth are each provided with a plurality of stretcher rod sleeves allowing the stretcher rods to penetrate through, the stretcher cloth is provided with a row of first draining holes located in the central axis of the Chinese sturgeon adult transporting stretcher, and the stretcher cloth is further provided with a plurality of second draining holes formed in the left side and the right side of the central axis respectively. The front end of the stretcher cloth is provided with a double-layer triangular cloth pocket used for being stuffed into the head of the Chinese sturgeon, and the triangular cloth pocket is an isosceles triangle symmetrical about the central axis. By means of reasonable structural design and material selection, the problems existing when an existing stretcher is used for transporting Chinese sturgeon adults are solved, safety and efficiency of transportation are improved, and powerful support is provided for rescue and breeding work of Chinese sturgeons.
Owner:SHANGHAI AQUATIC WILDLIFE CONSERVATION RES CENT +1

Method for extracting sturgeon oil with skin repair function

ActiveCN119529936BHas skin repair functionHave synthesisCosmetic preparationsToilet preparationsFish oilSkin repair
The application discloses an extraction method of sturgeon oil with skin repair function, which comprises the following steps: S1, preparation of crude fish oil of fish fat; S2, preparation of crude fish oil of fish liver; S3, preparation of crude fish oil of fish skin; S4, degumming and deacidification; and S5, refining. The fish oil extracted from different parts of sturgeon is mixed according to a specific proportion, the fish fat fish oil, the fish liver oil and the fish skin oil are mixed, and three kinds of functional components are added in the extraction process respectively, i.e. dihydroquercetin (providing antioxidant protection), phosphatidylserine (enhancing cell membrane repair and nutrient absorption) and curcumin (bringing anti-inflammatory and whitening effects), so that a multiple synergistic formula system is formed, and the prepared sturgeon oil is significantly enhanced in the repair function on the skin, and the bioavailability and stability of the product are improved.
Owner:WUHAN HUABIYUAN BIOTECHNOLOGY CO LTD

A feeding device for sturgeon culture

ActiveCN224504385USturgeonZoology
The utility model discloses a kind of sturgeon breeding's feeding device, it is related to sturgeon breeding technical field, including box, the top of the box is equipped with top cover by two hinges of symmetrical arrangement, the upper surface of the top cover is fixedly connected with handle, the inside of the box is provided with flow guide slope, the sidewall of the box is equipped with extension box, the side of the extension box away from the box is provided with movable plate.The utility model relies on the kinetic energy provided by bait granule of push plate to fly outwards, finally is scattered to sturgeon breeding pond to feed, simultaneously relying on the elasticity of push plate itself and elastic cord, can be adjusted feeding distance according to the accumulation height of bait, make bait distribution to different area in breeding pond, avoid because feeding is more concentrated to lead to sturgeon stress and rush to eat and thus cause harm to each other, simultaneously relying on the cutting effect of elastic cord to bottom bait, can reduce the close degree of bait accumulation, avoid because the bottom of box is blocked to lead to that feeding efficiency is reduced.

Sturgeon processing device

The utility model discloses a sturgeon processing device, which relates to the technical field of sturgeon processing and comprises a fixing mechanism, a fish head cutting mechanism is arranged on one side of the top of the fixing mechanism, a fish bone cutting mechanism is fixedly connected to the middle of the top of the fixing mechanism, and the fish head cutting mechanism comprises a mounting frame. And the top of the mounting frame is fixedly connected with a mounting plate. Through the arrangement of the fish head cutting mechanism, when a sturgeon is processed, the first motor can drive the first cutting blade to rotate at a high speed, the fish head and the spine are cut open, a cutter does not need to be held by hand for cutting, cutting is more convenient, and through the arrangement of the fish bone cutting mechanism, in the process of taking out the spine, the cutting efficiency is improved. A second cutting blade is driven by a third motor to rotate at a high speed, the sturgeon spine is cut, after the sturgeon spine is cut open, a spine rope can be taken out of the sturgeon spine, and compared with conventional manual cutting, cutting is more convenient, and more labor is saved.
Owner:AQUACULTURE INST OF GUIZHOU PROVINCE

Method for producing caviar or caviar-like products from mature living eggs of fish or crustaceans and products thereof

The production of caviar from live sturgeon and the production of caviar-like products from live fish or live crustaceans is particularly sustainable and also efficient from an economic point of view. In the prior art, mature live eggs are treated with calcium cations, thus enzymatically forming a structurally hardened egg shell. In the method according to the invention, the egg shell of fish and crustaceans has three or more layers, in the potassium exposure step, mature live eggs are contacted in deionized water and a solution of potassium cations, wherein the concentration of potassium cations and the water temperature have no damaging effect on the live eggs. The eggs form a new stable layer (SS) in the egg shell by continuous electrical depolarization. The stable layer is elastic and provides the caviar or caviar-like product with new texture and properties for future use. The potassium cations used as a technical auxiliary agent are not present in the final product. A supplementary treatment with calcium cations can be used. The products manufactured with the invention have a particularly long shelf life, they can even be frozen without loss of quality.
Owner:ALFRED WEGENER INST HELMHOLTZ ZENT FUR POLAR & MEERESFORSCHUNG

Sturgeon processing deboning device

The utility model discloses a deboning device for sturgeon processing, and relates to the field of sturgeon processing, the deboning device comprises two bases and a deboning box body, the deboning box body is fixedly installed at the tops of the two bases, a feeding plate is fixedly installed at the front part of the deboning box body, a material guide seat is installed at the top of the feeding plate and close to the front end, and the deboning box body is fixedly installed on the feeding plate. An adjusting mechanism is installed at the position, close to the rear end, of the top of the feeding plate, the adjusting mechanism comprises two sliding seats, the two sliding seats are movably installed at the positions, close to the rear end, of the top of the feeding plate, rotating rollers are movably installed at the tops of the sliding seats, and two identical rotating rollers are movably installed at the positions, close to the rear end, of the interior of the boning box body; the periphery between the two rotating rollers located at the front end and the rear end is sleeved with a conveying belt; the size of feeding ports of the two conveying belts can be conveniently and rapidly adjusted, the sturgeon conveying device is suitable for conveying sturgeons of different sizes, meanwhile, deboned fishes and cleaning water can be separated and collected, and long-time mixing of fish slices and water is reduced.
Owner:HUBEI QINGJIANG STURGEON FISHERY DRAGON CO LTD