60 results about "Fish weight" patented technology

The invention relates to a fish body dimension and weight rapid acquisition apparatus. The apparatus comprises a window-shaped fixing device and a dimension reference object. The upper inner wall of the window-shaped fixing device is provided with a high-angle shooting pick-up head. One side wall of the window-shaped fixing device is provided with a lateral-shooting pick-up head. One side wall opposed to the side wall where the lateral-shooting pick-up head is located is provided with an LED lateral-shooting lamp box. The lower inner wall of the window-shaped fixing device is provided with an LED high-angle shooting lamp box. The bottom of the window-shaped fixing device is further provided with an electronic balance. The acquisition method of the acquisition apparatus comprises the following steps of shooting a background image respectively in a high-angle shooting way and a lateral shooting way when no fish is present; shooting a dimension reference object image respectively in a high-angle shooting way and a lateral shooting way, and setting up a model for fish body dimension calculation and fish weight prediction. The fish body dimension and weight rapid acquisition apparatus which can rapidly acquire multi-parameter fish body dimension indexes and weights of fish bodies can further set up a fish body dimension and weight prediction model in a computer. The prediction precision can reach more than 90%. The model can be applied to research and development of fish weight sensors.

A rockfishes pond culture method is disclosed, wherein young fish of rockfishes is released in a sea pond with water depth more than 80 cm and water temperature 13-38 DEG C, released density is 750-850 fish 667 m2, diet is feed at least twice a day in the release process, quantity of diet feeding is: 3-4% fish weight in the early breeding stage, 4-5% in the middle stage and 5-7% in the late stage; specification of the released fish is 6-8 per kg, the release pond is sand bottom, and water in the pond is more than 1.5 in depth, and provided with a separate inlet/discharge channel. The bottom of the pond is laid with a plurality of random rubbles or perforate junked tires or tile tunnels. The invention is characterized by simple breeding method, low breeding cost, high success ratio of the cultivated fish, healthy in water aquatic products with high quality and nuisance free and the like.

The invention discloses a fish bait casting quantity control system for deep-water cage culture, and system obtains the water temperature, salinity, dissolved oxygen concentration, water flowing speed and cultured fish weight of a controlled deep-water net cage at n historical collection moments through a control host, and enables the obtained data to be inputted to a support vector machine model for processing, and then selects an optimal support vector machine model based on the judgment of a mean square error and a square related coefficient of the support vector machine model. The system can predict the result of the cultured fish weight according to the environment factor data of fishes cultured in the controlled deep-water net cage at the current moment, sends a corresponding bait casting quantity control instruction based on the result, and enables a bait casting machine disposed on the deep-water net cage to cast bait according to the bait casting quantity control instruction. The system can achieve the automatic and high-precision bait casting for all deep-water net cages under a specific environment factor, reduces the bait waste and environment pollution which are caused by unreasonable casting, and greatly improves the culture benefits.

An automated fish culling system which includes a base station which includes a processor and base station display for displaying information corresponding to a plurality of cull tags, the base station display being communicably coupled to the processor. Each of the plurality of cull tags are configured to be associated with a fish and includes cull tag display for identifying the cull tag. The system further includes a memory for storing data that includes information associated with the fish, the information comprising a fish weight, wherein the processor determines which fish to cull based on at least the fish weight associated with each fish, and indicates which fish to cull via at least the base station display

A fish weight capture system accurately captures and records the number and weight of each fish caught by fishermen through a geographic area. The system uses a series of dispersed kiosks such that each kiosk weighs each fish processed by the kiosk and captures and image and other information about the fish. The data about each fish is recorded within the kiosk and is transmitted to a central computer and stored within a database. The data received from each kiosk allow a regulatory agency to determine the number and weight of each fish type taken and set appropriate rules and regulations based on this data.

The invention discloses an artificial spawning induction method for rhinogobio ventralis. According to the method, the male and female proportion of mature parent fishes is 1:1.5; spawning induction medicine is lutropin releasing hormone analogies, and the dosage of the medicine is 6 micrograms per kilogram of fish weight; according to an artificial fertilization method, female fishes awaiting spawning are caught, moisture of fish bodies are wiped to be dry, ova are extruded into a dry container, then male fishes awaiting spawning are caught, genital openings are wiped to be dry, seminal fluid is sucked up through an injector, placed in a sperm dilution and then mixed with the ova, activation is performed by clear water, standing is performed for two minutes, and then fertilized ova are poured into an incubator for incubation; the flow speed of water bodies in the incubator before stripping of the fertilized ova is 0.4 m/s, the flow speed after stripping is 0.2 m/s, after stripping, the fertilized ova grow in the incubator until fish fry swim bladders are inflated, and then fish fry cultivation can be performed. The spawning induction rate is larger than 65%, the fertilization rate is larger than 85%, the incubation rate is larger than 80%, a large number of fish fries can be provided for batch production of the fish fries of the specification of rhinogobio ventralis, and therefore proliferation liberation of the rhinogobio ventralis is achieved.

The invention relates to a fishing weight, in particular to an environment-friendly tungsten alloy fishing weight. The environment-friendly tungsten alloy fishing weight contains tungsten, nickel and ferrum and has the density being 14.8-18.5g/cm<3> and the hardness HRC being 18-35, wherein the specific mixture ratio of the tungsten to the nickel to the ferrum are that the tungsten is 60-97 percent, the nickel is 3.5-25 percent and the ferrum is 1.5-15 percent. The environment-friendly tungsten alloy fishing weight disclosed by the invention has the advantages of simple process steps, simpleness and convenience in implementation and operation, freeness of pollution to the environment and worth of advocacy; the density of the produced tungsten alloy fishing weight can be controlled according to the requirement; and the tungsten alloy fishing weight comprises main components such as the tungsten, the nickel and the ferrum or the tungsten, the nickel and copper.

The invention discloses a preparation method of easily-preserved marine small trash enzymolysis full-fish cream rich in small peptides. The preparation method comprises the following steps: (1) granulating, taking fresh marine small trash full fish as raw material fish, and carrying out staging smashing until the fish is of protein grains with the maximum sizes of below 5 mm; (2) carrying out micronization, shearing at superhigh speed until the protein particle slurry is 150 meshes or more; (3) carrying out miniaturization, heating until the miniaturization temperature is 55 to 75 DEG C, enabling an ultrasonic probe to extend into an accommodating groove to act on miniaturized ultrasonic waves to prepare miniaturized protein activated slurry; (4) carrying out enzymolysis, heating around microwave until the enzymolysis reaction temperature is 40 to 65 DEG C, putting protease with the raw material fish weight of 0.01% to 2% into the protein particle slurry, carrying out microwave and ultrasonic enzymatic hydrolysis reaction, circularly and alternately applying 10 to 20 minute per time, and carrying out an enzymatic hydrolysis reaction for 20 to 60 min to obtain the enzymolysis protein slurry; carrying out inactivation fermentation, carrying out vacuum concentration until the water content is 40wt% to 60wt%, namely obtaining the easily-preserved marine small trash enzymolysis full-fish cream rich in small peptides. According to the preparation method, the full-fish cream rich can replace a feed protein source as an aquaculture economic feed.

The invention relates to an intelligent fish weight checking and sorting machine and an operation method thereof. The intelligent fish weight checking and sorting machine is provided with a sorting device, and the sorting device comprises a transition conveyor, a rotary distribution device and a plurality of distribution conveyors, wherein the rotary distribution device is combined with a weighing device, and under the control of a PLC, fishes can be automatically distributed to different conveying channels according to the weights of the fishes for subsequent treatment or packaging. Compared with the prior art, the intelligent fish weight checking and sorting machine has the remarkable advantages that the structure is simple, large-scale automatic weight checking and sorting can be achieved, the whole device does not need too many specially-made parts, the parts are mature in technology, convenient to purchase and low in price, and compared with other structures in which the structure is quite complex, manufacturing cost is high, and the effects are not greatly different from each other or even are not better than the efficient and high-precision sorting effects of the intelligent fish weight checking and sorting machine, the intelligent fish weight checking and sorting machine has obvious advantages. Meanwhile, the operation method is simple, convenient and high in efficiency.

The invention discloses a salmon trout cultivating and feeding method, and belongs to the technical field of aquaculture. The technical point of the invention is that the salmon trout cultivation is performed in two sets of sealed recirculating aquaculture systems, and every set comprises 24 culture ponds, and water for cultivation is well water; the cultivation index is that the temperature of water for cultivation is 15-17 DEG C, the dissolving oxygen is 7-8/mg/L, and water quality indexes of ammonia nitrogen, nitrate, and nitrite are the same condition; the food feeding parameters: the daily feeding amount includes four groups which are 0.7%, 1%, 1.5% and 1.8% of fish weight; the daily feeding frequency is 4 times, and the feeding time is set at 6: 00, 12: 00, 18: 00 and 24: 00; the overall growth condition of the fish is tested once monthly; the survival rate and fatness of fish are calculated; water quality is monitored at fixed time and regular period; the detection position is awater returning pond. The invention is used for salmon trout cultivation.

The invention discloses a method for cultivating freshwater weever fries, and belongs to the technical field of aquaculture. The method includes the following steps: pretreating a holding pond; putting the weever fries, 1.5-2 cm in length, into the holding pond, and adding traditional Chinese medicinal extraction liquid everyday 3 days before feeding; during temporary breeding of the fries, increasing oxygen in pond water frequently; on the second day for free-range breeding, feeding some blood worms, and feeding artificial feed, wherein the daily feeding amount of the artificial feed accountsfor 0.1-0.8% of the total fish weight; after breeding the fries in the holding pond for 20-30 days, breeding fishes with the body length of more than 5 cm in a large pond. The method has the advantages that the special breeding feed is used for raising, the nutritive value of cultivated weevers is high, all nutrition requirements for high-density culture of the freshwater weevers can be met, cultivated objects grow rapidly, and the feed conversion rate and the cultivation efficiency are high.

The present application relates to the field of aquaculture, in particular to a method for predicting the fish yield, comprising: collecting feeding image information of fish from above the water surface toward the water surface; extracting fish head and mouth triangles from fish feeding images; calculating the area of the extracted head and mouth triangle of the fish; calculating the actual head-mouth triangle area by the extracted head-mouth triangle area of the fish; calculating the fish weight by the actual triangular area of the head and mouth of the fish. The beneficial effects realizedby the application are as follows: the growth and survival state of the fish can be evaluated by the feeding image information of the fish collected at the feeding time period of the bait; The fish head triangle can be extracted from the fish feeding image information, and the fish head triangle area can be calculated. Finally, the fish body weight, that is, the fish output, can be calculated, andthe final fish output can be evaluated.

The embodiment of the invention provides a fish weight measuring and calculating method and a device, and the method comprises the steps: obtaining a photographing image corresponding to a to-be-measured and calculated fish, obtaining the position information of specific points of the to-be-measured and calculated fish according to the photographing image, and obtaining the actual distance betweenthe specific points according to the position information of the specific points and the pixel value of the photographing image; obtaining an image feature value of the eye of the fish to be measuredand calculated according to the shot image, and calculating an actual feature value of the eye of the fish to be measured and calculated according to the image feature value and the pixel value; selecting an actual distance between the specific points and an associated feature related to the weight of the fish in the actual feature values of the eyes of the fish to be measured and calculated through a preset association analysis method; and substituting the associated features into a preset neural network model, and performing calculation to obtain a weight prediction value of the to-be-measured fish output by the neural network model. By adopting the method, the weight of the fish can be accurately measured and calculated.

The invention relates to a degenerated marsh wetland fish habitat restoration method. The technical problem that an existing marsh wetland becomes degenerated marsh without water or fish, and the ecological function of serving as transit rest land of migrating birds is lowered is solved. Accordingly, a habitat space is suitably restored, and a breeding habitat is suitably restored. For the restored marsh wetland, after a flood recedes, the number of fishes stuck in the marsh wetland is obviously increased compared with that before restoration, the increment of fish weight is 150.1%, and the increment of the number of individuals is 99.4%; a certain number of fish resources can be kept in autumn and spring for the birds to eat, and then the originally lost ecological function of serving asthe transit rest land of the migrating birds in autumn and spring is restored.

The present invention provides a kudzu roots containing fish feed additive and a fish feed and a use method thereof. The fish feed additive includes kudzu root barks, radix notoginseng, and lucid ganoderma. The fish feed additive is crushed, and the crushed fish feed additive is mixed with cooked main materials to prepare the fish feed . The daily feeding amount of the fish feed is 10%-65% of the fish weight. The wasted Kudzu root barks after the processing of Kudzu root medicinal materials are used, the radix notoginseng and lucid ganoderma are combined, and mixture is then mixed with the natural main materials. The fish feed is conductive to promoting the healthy growth of the fish, reduce the mortality, improve the quality of fish flesh, and enhance the nutritional value. The fed fish by using the method is high-quality healthy food.

The invention discloses an intelligent fish weight in the fish weight technical field; the intelligent fish weight comprises a rear housing and a front housing; the rear housing is arranged in the rear side of the front housing; the rear housing is hinged to the right side wall of the front housing through a hinge; the outer wall of the front housing is provided with a loudspeaker; the bottom of the loudspeaker is provided with a touch water conductive rubber; the right side of the loudspeaker is provided with a lighting device; the intelligent fish weight uses the fish weight as a carrier to realize combined functions; the intelligent fish weight has the basic lead weight function of the fish weight, so the fish hook can be relatively stable in position; a second electromagnet can attach a second push rod so as to pull the fish hook, so the fish hook can swing to provide live bait luring function, and improving fishing success rate; a first electromagnet can attach a first push rod, so the first push rod enables a pressure plate to extrude the bait from a fish lure agent chamber, thus luring fish to come, and increasing fishing success rate; the loudspeaker and the lighting device can improve the temptation so as to increase fishing success rate; the intelligent fish weight is made of environment-friendly type material, thus saving energy and realizing environmental protection.

The invention provides a method for improving the quality of grass carps. The method comprises the following steps: 1) pond bottom treatment: carrying out disinfection treatment on a pond, laying a later of fine sand and cobblestones at the bottom of the pond, and then laying a layer of beer sludge; 2) pond water treatment: controlling the pH value of water to be 5-6.5, controlling the water depthto be 70-80cm when fry are thrown, then adding water once every 3-5 days to enable the water depth to reach 130-180cm, wherein 10-15cm of water is added every time, and adding a mixed liquid and discharging water every day in the 1-2 months before grass carps are sold on the market, wherein the mixed liquid is a filtrate obtained by stewing tea leaves, honeysuckle flowers and pericarpium citri reticulatae and carrying out filtering and cooling; and 3) grass carp stocking: controlling the stocking density of the grass carps to be 350-400 kilograms per mu and the specification to be 130-140 grams per grass carp, carrying out stocking on salmon fry at the same time, controlling the stocking density of the salmon fry to be 10-30 kilograms per mu, and carrying out feeding by feed, wherein thefeeding amount of the feed accounts for 0.1-0.8% of the total fish weight. According to the method, on the premise that the breeding effects such as the growth period of the grass carps and the like are not changed, the quality of the grass carps can be remarkably improved, and the survival rate of the grass carps and the survival rate of the salmons can be improved.

The invention provides a method for improving the quality of crucian carps. The method comprises the following steps: 1) pond selection and treatment: carrying out disinfection treatment on a pond, laying a later of fine sand and cobblestones at the bottom of the pond, and then laying a layer of straw, corn stalks and wheat stalks; 2) pond water treatment: controlling the pH value of water to be 5-6.5, controlling the water depth to be 70-80cm when fry are thrown, then adding water once every 3-5 days to enable the water depth to reach 130-180cm, wherein 10-15cm of water is added every time, and adding a mixed liquid and discharging water every day in the 1-2 months before crucian carps are sold on the market, wherein the mixed liquid is a filtrate obtained by stewing tea leaves, honeysuckle flowers and pericarpium citri reticulatae and carrying out filtering and cooling; and 3) crucian carp stocking: controlling the stocking density of the crucian carps to be 350-400 kilograms per muand the specification to be 100-120 grams per crucian carp, carrying out stocking on salmon fry at the same time, controlling the stocking density of the salmon fry to be 10-30 kilograms per mu, and carrying out feeding by feed, wherein the feeding amount of the feed accounts for 0.1-0.8% of the total fish weight. According to the method, on the premise that the breeding effects such as the growthperiod of the crucian carps and the like are not changed, the quality of the crucian carps can be remarkably improved, and the survival rate of the crucian carps and the survival rate of the salmonscan be improved.

The invention provides a method for ecologically breeding grass carps in a southern hilly land slops, and relates to the field of aquaculture. The method comprises the following steps of S1, address selection: selecting a slope with a constantly flowing stream in southern hilly land; S2, pool building: building a plurality of cement pools distributed in a step shape; S3, disinfection: performing sterilization and disinfection on the cement pools by using disinfectants before the fish fry feeding every year; S4, breeding: feeding compound feed every day according to 1.8 to 2.5 percent of the fish weight; feeding tender bamboo leaves or pennisetum hydridum according to 0.3 to 1.0 percent of the fish weight; feeding duckweeds according to 0.1 percent of the fish weight. The method provided by the invention has the advantages that the plurality of cement pools distributed in the step shape are arranged in the slopes; every two adjacent cement pools form one group; each group of cement pools comprises a grass carp pool and a processing pool; each grass carp pool is used for culturing the grass carps; each processing pool is used for processing waste materials generated by the grass crap breeding; a great number of grass carps can be bred on the slope; meanwhile, the feed fed every day is prepared through a great number of practices, so that the meat of the grass carps is smooth, tender and refreshing.