13 results about "Trout/salmon" patented technology

The invention relates to the technical field of fish culture, in particular to a method and device for preventing early-stage fry of salmon and trout from gathering. The device comprises a culture pond and a density regulator arranged at the bottom of the culture pond, and the density regulator comprises a grid frame, a regulating partition plate and telescopic ribs; a plurality of water inlet pipes are arranged on the base of the culture pond and extend upwards from the grid frame; transparent side plates are arranged at the upper part of the culture pond; a cover plate is mounted at the tops of the transparent side plates; the density regulator realizes space regulation of horizontal growth of the fries by regulating the distance of the partition plates, the water inlet pipe introduces water flow from the density regulator to disturb the culture pond, hatched salmon and trout fries are guided to be uniformly distributed along the periphery of the density regulator, and early-stage salmon and trout fries are prevented from gathering. Through the comprehensive action of multiple aspects of space separation, water flow disturbance and guide, adjustment of the telescopic ribs, environment control and the like, early-stage fries of salmon and trout are prevented from gathering, and uniform distribution and growth of the fries are promoted.

This invention discloses a method for large-scale breeding of all-male salmon and trout, belonging to the field of fish sex regulation breeding technology. The method includes: collecting fertilized eggs from different families of the same species of salmon and trout, artificially incubating them to obtain fry, and inducing sex reversal in the fry by using 17β-estradiol when they begin feeding; subsequently, raising the fry to sexual maturity, selecting individuals with a female phenotype, and then using sdY as a sex identification gene, selecting pseudo-females with genotype XY by quantitative real-time PCR; pairing the sexually mature pseudo-females with genotype XY with normal males with genotype XY, and obtaining super-males with genotype YY through artificial insemination; pairing the sexually mature super-males with females with genotype XX, and producing all-male salmon and trout with genotype XY on a large scale through artificial insemination. This invention overcomes the problem that existing technologies cannot achieve large-scale breeding of all-male salmon and trout.

This utility model relates to the field of aquaculture technology, specifically a buffer-type salmon and trout transfer device, including a conveying chamber with a fish storage box fixedly connected inside. This utility model features a first transport trough, a second transport trough, a rotating shaft, and a turntable. When the operator pulls the second transport trough outward, a slider inside the trough moves outward, extending the second transport trough so that its length contacts the water surface, reducing salmon and trout mortality due to height limitations. Pressing down on the second transport trough causes the first transport trough to rotate downward, which in turn causes the rotating shaft to rotate, allowing the second transport trough to contact the water surface. Pulling up the lifting block raises the gate, allowing the salmon and trout to flow from the fish storage box into the first transport trough. The cushioning effect of the rubber pad reduces salmon and trout mortality and improves the device's efficiency.

The present invention discloses a hybridoma cell line, monoclonal antibody and application that secretes anti-infectious pancreatic necrosis virus VP2 monoclonal antibody, which belongs to the field of bioengineering. The hybridoma cell line IPNV9-VP2 was deposited on August 17, 2022 at the China Center for Type Culture Collection, Wuhan University, Wuhan City, Hubei Province, with a deposit number of CCTCC C2022216. It is derived from the recombinant protein of infectious pancreatic necrosis virus VP2. The secreted anti-IPNV-VP2 monoclonal antibody has high purity and can specifically recognize IPNV-VP2 protein. It is used for ELISA to specifically detect the concentration of IPNV-VP2 protein in diseased fish tissues or the distribution of IPNV-VP2 in frozen tissue sections with high sensitivity and accuracy, providing parameter indicators for detecting viral infection. By monitoring the health status of salmon and trout in real time, it provides technical support for the sustainable development of salmon and trout aquaculture.

The utility model relates to the field of ovum collection clamp device discloses a adjustable visual ovum collection clamp device for salmon trout, including the clamp main part, the clamp arm bottom of clamp main part is nested with movable rod respectively, and every movable rod bottom is fixed with the ovum taking ring and installed respectively, the fingerstall is fixed with installed respectively on the both sides of the clamp arm of clamp main part, and every movable rod is fixedly connected with every movable rod through the limiting assembly respectively to every clamp arm of clamp main part, the both sides of the clamp arm of clamp main part are mutually close one end and are elastically connected through first spring respectively, and the handle one end of clamp main part is fixed with the lighting lamp, one movable rod side wall is fixed with the magnifying glass, the utility model discloses the device is convenient for the ovum collection clamp process of salmon trout fish egg.

The utility model provides a salmon and trout breeding and breeding device which comprises a first breeding box and a second breeding box and further comprises a fry separating assembly and a breeding assembly. The seedling separating assembly comprises a supporting transverse plate fixedly connected to the outer side wall of the first breeding box, a motor fixedly connected to the top of the supporting transverse plate, a threaded rod fixedly connected to the driving end of the motor, a sliding block in threaded connection to the outer wall of the threaded rod, and a fixing base fixedly connected to the top of the first breeding box. The sliding rod is fixedly connected between the fixed seats, the seedling separating plate is fixedly connected to the bottom of the sliding block, the sliding block is in sliding connection with the sliding rod, the threaded rod is rotationally connected with the fixed seats, and seedling separating holes are formed in the seedling separating plate. According to the salmon and trout screening, grading and transferring device, by arranging the fry separating assembly, screening, grading and transferring operation of the fries can be rapidly and efficiently completed, manual labor is reduced, the transferring efficiency and accuracy are improved, a proper living environment is built for salmon and trout by means of the fine grading and screening process, and healthy growth of the salmon and trout is promoted.

The utility model discloses a salmon and trout roe hatching device, which relates to the technical field of roe hatching devices, and comprises a rack, a support frame is fixedly connected to the top of the rack, a raw water inlet pipe is fixedly connected to the side wall of the rack, one end of the raw water inlet pipe is connected with a raw water tank, and a cooling and heating machine is fixedly mounted on the inner bottom surface of the rack. Water is added into the oxygenation pump through the raw water inlet pipe, the oxygenation pump is matched with the oxygenation pipe to discharge oxygenated water into the biological treatment pond, and the water in the biological treatment pond flows to the drainage pipe through a pipeline between the isolating valve and the treatment pond drainage valve, is guided to the circulating water pump through the drainage pipe and is pumped into the cooling and heating machine through the circulating water pump. According to the salmon and trout roe hatching device, the cooling and heating machine is matched with the flow guide pipe and the water discharging pipe to be used for adding temperature-adjusted water into the hatching drawer bodies, by arranging the cooling and heating machine, the temperature of circulating water can be adjusted, the water temperature is made to be suitable for salmon and trout roe growth, and the problems that an existing salmon and trout roe hatching device is not easy to control the water temperature, and salmon and trout roe hatching is affected are solved.

The invention belongs to the field of aquaculture and ocean resource development, and relates to a salmon and trout sectional type mariculture method based on a deep and far sea culture work ship, which comprises the following steps: transferring large-size fingerlings cultured in offshore deepwater net cages into the culture work ship at proper density at the end of spring and the beginning of summer; driving the culture work ship to a sea area with low-temperature seawater at the bottom layer, and enabling the fingerling to continuously grow into semi-finished fish; when typhoons need to be avoided, the culture work ship is driven to a sea area which is slightly influenced by the typhoons and has low-temperature seawater at the bottom layer; in late autumn and early winter, most or all semi-finished fish cultured in the culture work ship is transferred back to the offshore deepwater net cage, and commercial fish culture is continued; the commodity specification is reached in the next spring. According to the method, fish putting time, culture sea areas and culture modes are scientifically arranged, the culture cost can be reduced, the market competitiveness of cultured products is enhanced, and the method can be widely applied to northern sea areas in China.

The utility model relates to the technical field of embryo micro-injection experimental devices, and discloses a salmon and trout embryo micro-injection pretreatment device which comprises an incubator, the placing assembly comprises a plurality of placing pieces and a plurality of connecting pieces, the connecting pieces are fixedly connected to the incubator in the axial direction, the placing pieces are placed in the incubator in the circumferential direction and detachably connected with the connecting pieces, and the placing pieces are used for storing salmon and trout roes; the temperature control part is arranged on the incubator and used for controlling the temperature in the incubator; and the oxygen control piece is arranged on the incubator and is used for controlling the oxygen content in the incubator. The device meets the requirements of constant low temperature and high oxygen in the operation process, is beneficial to improving the survival rate of subsequent embryo injection, can meet the experimental pretreatment requirements of multiple experimental batches, can effectively ensure the activity of roes before injection, and improves the injection efficiency.

The utility model discloses a salmon and trout roe hatching device relates to hatching device technical field, including outer box and hatching box, the inside of outer box is equipped with hatching box through rotating shaft, the inside of hatching box is equipped with fixed column, the top of outer box is equipped with connecting strip, the top of fixed column is equipped with transmission shaft, and the transmission shaft is equipped with transmission shaft. A dispersion fan is mounted on the lower surface of the connecting strip; a water tank is mounted on the left side of the outer box; an overflow pipe is mounted above the left side of the water tank; placing plates are installed on the left side and the right side of the fixing column through hinge bases correspondingly, limiting plates are installed on the left side and the right side of the fixing column correspondingly, and limiting bolts are installed on the limiting plates. According to the salmon and trout roe hatching device, the dispersing fan blows air to the placing plate, so that salmon and trout roes on the placing plate are dispersed preliminarily, sufficient space is provided for the roes, mutual extrusion is reduced, material exchange in a hatching environment is facilitated, the breathing efficiency of the roes is improved, and healthy development of the roes is promoted.

The invention relates to the technical field of salmon and trout breeding, in particular to a salmon and trout virus killing device which comprises a medicine box, a discharging assembly is arranged on the outer wall of the medicine box and comprises four L-shaped plates fixedly connected to the outer wall of the upper end of the medicine box, and two rotating shafts are rotationally connected to the side walls of the L-shaped plates correspondingly; the surface of one end of the rotating shaft is fixedly sleeved with a driving gear, the surface of the other end of the rotating shaft is fixedly sleeved with a transmission gear, the rotating rod is driven to rotate through the connecting gear, the rotating rod drives the rotating wheel to rotate when rotating, the rotating wheel drives the fixing plate in the annular groove to rotate when rotating, and the fixing plate drives medicine discharged out of the discharging opening to move out when rotating. The rotating wheel can be driven to continuously discharge the disinfection medicine along with the movement of the medicine box, and the movable medicine feeding mode can meet the requirement for uniform medicine feeding in a large aquaculture farm, so that the medicine is uniformly dispersed in the farm, and the living space of germs in the farm is eliminated.

The utility model belongs to the technical field of aquatic product processing, and particularly relates to a salmon and trout viscera crude fish oil extraction system. Comprising a raw material storage box used for storing salmon and trout visceral meat slurry, a screw feeder used for conveying the visceral meat slurry in the raw material storage box to a stacked screw machine, the stacked screw machine used for conducting filter pressing on the visceral meat slurry and separating the visceral meat slurry into residues and an oil slurry mixture, and a temporary storage box used for containing the oil slurry mixture. The settling tower is used for cooking the oil-slurry mixture to extract crude fish oil, the plate-and-frame filter is used for filtering the crude fish oil to remove viscera waste, and the crude fish oil storage box is used for containing the filtered crude fish oil. The system is optimized and improved on the basis of a cooking process route, the extraction rate of crude fish oil is improved, and the whole system has the characteristics of low cost, simplicity and high efficiency.

The utility model discloses a transfer device for salmon and trout culture relates to aquaculture technical field, including culture box and transfer pipeline, the bottom of culture box is provided with the base, and the right side of culture box is provided with the fish outlet, and the right side of fish outlet is connected with the transfer pipeline. Threaded sleeves are connected to the left side and the right side of the bottom of the breeding box, telescopic rods are arranged at the corners of the bottom of the breeding box, the breeding box is located above the base to form a lifting structure, a hose is connected to the left side of the transfer pipeline, a mounting plate is fixedly mounted on the left side of the hose, and the mounting plate is mounted on the outer side of the fish outlet. The transfer device for salmon and trout culture has the advantages of being adjustable in height, capable of guaranteeing water quality, convenient and fast to transfer and the like, the height of the culture box is adjusted according to the quantity of transferred fishes or the butt-joint transfer height, a convenient and fast disassembly and assembly structure of the transfer pipeline facilitates later cleaning and maintenance, and the transfer device is suitable for transfer work of salmon and trout culture.