310 results about "Fish growth" patented technology

The invention discloses a bottom water filtering system and further discloses an imitated ecological recirculating aquaculture and propagation system and a method for promoting natural propagation of migratory fish by adopting the recirculating aquaculture and propagation system. By adopting the method and establishing the recirculating aquaculture and propagation system suitable for integrated growth, development and spawning of the migratory fish, breeding and propagation functions are effectively integrated, and synergic regulation of ecological factors which are necessary during maturation of the migratory fish, especially reeves shad is optimized, so that sexual glands of bred parent fish can synchronously develop and mature under the appropriate, coordinative and controllable ecological conditions, the parent fish can naturally spawn without artificial spawning, and injuries, deaths and gonad development interference caused by hormone injection and catching operation are avoided. The method for promoting the natural propagation of the migratory fish by adopting the recirculating aquaculture and propagation system is simple, reliable and effective and is the key for propagation technology industrialization of the migratory fish, especially the America reeves shad.

The invention discloses an artificial feed for freshwater carnivorous fishes. The artificial feed is prepared from components such as fish meal, nitrofural, raw bran, bean meal, monocalcium phosphate, cuttlefish cream, fish oil, phosphatide oil, a premix, antibacterial peptide and bacillus. The artificial feed can be used for increasing the farming survival rate of freshwater carnivorous fishes, increasing the growth rate of the freshwater carnivorous fishes and reducing the morbidity of the enteritis of the freshwater carnivorous fishes in the farming process, and is helpful for achieving the large-scale farming popularization of the freshwater carnivorous fishes.

The invention provides a fish-growth-based optimal control method and system. The method comprises the steps that a plurality of water quality environmental data variables and fish images in an aquaculture system are collected; the fish images are subjected to analytical processing, and the fish healthy growth index is obtained; according to the healthy growth index of fish, multiple key water quality environmental data variables affecting fish growth in the water quality environmental data variables are determined; the determined key water quality environmental data variables and the fish healthy growth index are input into a predictive control model obtained after training, and the corresponding control amount is output. Accordingly, the interaction mechanism between the water quality environmental data variables and the fish growth state is explored, by constructing the predictive control model between the water quality and the fish growth, the water quality environmental parametersfor the healthy growth of the fish are dynamically adjusted to ensure the stability of the water environment, the consumption of resources is lowered, and the economic benefits of aquaculture are improved.

The invention discloses aquatic plant fish granulated feed. The aquatic plant fish granulated feed is prepared from, by mass, 15-25 parts of aquatic plant powder, 15-25 parts of an aquatic plant preparation, 10-20 parts of rape seed cakes, 5-15 parts of No.4 powder, 10-20 parts of plant oil meal, 2-3 parts of calcium hydrophosphate, 1-2 parts of salt, 1-2 parts of lysine, 2-3 parts of rapeseed oil, 1-2 parts of eggshell powder, 1-2 parts of sugar and 0.5-1 part of vitamin. The adopted raw materials are aquatic plants contaminating water and damaging the ecological environment, enzymolysis and extraction are carried out through the bioengineering technology, and the fish feed is prepared. Water pollution is prevented, the water environment is treated, the ecological environment is restored, the growth environment of fish is improved, and disoperation of some algae to a water area and the fish is reduced. The use amount of the feed is reduced and breeding cost is reduced. The fish feed contains various nutritional substances and has the function of promoting growth of fish.

The invention provides a cultivation method for purifying water and increasing the growth rate of fish fries, fish fingerling and adult fishes, and a six-level water processing method. By utilizing the appropriate ecological microorganism, the functions of regulating the water quality, purifying the water source and providing fish bait are played in the important period of different stages for the fish incubation, the fish fry growth, the fish fingerling cultivation and the adult fish growth. The fish growth rate is increased, the probability of the fish disease occurring is reduced, and therefore the production efficiency for the fish cultivation is improved.

The present invention provides a method for breeding improved varielies of fishes, and said method includes the following steps: a). cultivating the fishes to be bred and selected; b). in the period of fish growth selecting fishes with large body and good ratio of body length and body weight from fish group, in which its selection rate is less than 5 / 10000; c). cultivating selected fishes to make them reproduce next generation of fishes; and d). repeating step b and c for 3-10 times. Said invented method can effectively breed various fishes. The Megalobrana amblycephala pujiang No.1 model bred by said invented method not only is quick in growth, good in body form, high in purity, but also can meet the requirements for green food.

The invention relates to a water ecological purification system and method. Partition walls are arranged on the edge of water; a waterweed growth area and a fish growth area are arranged in the water area surrounded by the partition walls, the waterweed growth area and the fish growth area are separated latitudinally or longitudinally by a separation net; submerged plants are planted in the planting soil in the waterweed growth area, and the submerged plants of different colors and shapes are matched to create the underwater landscape; aquatic animals which are matched reasonably and can establish a stable ecological chain are raised in the fish growth area; and biological bases are distributed in water according to a proportion. A submerged plant and aquatic animal coexisting water purification system is established, and the submerged plant has the function of controlling the eutrophication. Due to the adoption of the water ecological purification system and method, a stable biological chain can be formed in water, the effect of purifying water is achieved.

The invention discloses a lifting type culture net cage platform system and an abalone culture feeding method. The lifting type culture net cage platform system comprises a floating body structure, upper frames, culture net cages, guide devices and mechanical lifting devices, wherein the floating body structure provides floating force to a lifting type culture net cage platform so that the liftingtype culture net cage platform floats on water; the floating body structure provides support for the lifting type culture net cage platform to bear the upper frames, the guide devices and the mechanical lifting devices; the culture net cages are suspended on the upper frames through the mechanical lifting devices; the mechanical lifting devices are used for enabling the culture net cages to riseout from water or sinks into the water; the guide devices limit the space limit of the culture net cages to help the culture net cages to slide up and down in the guide devices under the action of themechanical lifting devices. According to the lifting type culture net cage platform system and the abalone culture feeding method, the throwing of bait and the inspection of sea fish growth conditions can be completed on the floating body structure, so that the labour intensity of culturing personnel can be greatly reduced; large-scale culture is benefited; abalones can be cultured in a sea areawhich is far away from the beach and a sea area with strong wind and waves; economic benefit is greatly improved.

The present invention is aimed at designing a net cage for fish culture. Said structure is characterized by that a central buoyancy float of set on the horizontal direction, two rows of supporting bars are hinged with said central buoyancy float, several weft ropes are one-by-one connected with top portions of the said supporting bars so as to form the form of ring, several warp ropes are connected to the top portions of supporting bars from one end of central buoyancy float, then are connected to another end of said central buoyancy float, the net pieces can be successively connected with the frame enclosed by warp ropes and weft ropes to form a closed form, besides, the anchoring end of the net cape also is equipped with a flow-resisting cover. Besides, said invention also provides the application method of said invented net cage for fish culture.

The invention discloses a fish feed prepared from biogas residue prepared from cow dung, and a preparation method thereof. According to the preparation method, cow dung is subjected to harmlessness processing; the fish feed is prepared from biogas residue obtained via biogas fermentation, and is used for fish farming; so that environmental pollution caused by cow dung is avoided, and novel feed resources and processing methods are provided for breeding industry. The fish feed is used for fish farming, and is capable of promoting absorption and utilization rate of fish on nutrients, increasing feed conversion rate, improving fish health, promoting fish growth, reducing culturing investment, and saving fund.

A functional pond for culturing mass freshwater fishes is characterized in that a rectangle culture pond body (1) is divided into a first part (101) and a second part (102) by a water diversion wall (2), the water diversion wall (2) is of a T shape, a T-shaped transverse separating wall body (201) of the water diversion wall (2) separates the first part (101) from the second part (102, an interval is formed between the tail end of a T-shaped longitudinal wall body (202) and the pond wall of the rectangle culture pond body (1), and the second part (2) comprises a front pond portion (102a ) and a rear pond portion (102b) which are communicated with each other. According to the functional pond for culturing the mass freshwater fishes, traditional stereoscopic culture is divided according to ecological niches, so that the fishes in different ecological niches can take full advantages of different ecological niche resources, fish growth is facilitated, and the ecological efficiency and culturing benefits of pond culturing are improved; a fish feeding culture area is divided into a growth area, a feeding area, a fecal treatment recycling area and the like, the formation of flow, collection of dirt, the recycling of pollutants, regulation and control over a water body and the like are facilitated, and meanwhile, installation condition is provided for the achievement of automatic mechanized fishing and industrialized management.

The invention provides a fish growth data measurement device based on machine vision, and the device comprises a tray, an input apparatus, a weighing sensor, a controller and a camera. The weighing sensor is mounted on the tray, and the camera is arranged corresponding to the tray and the scale of the tray. The input device, the camera, and the weighing sensor are connected with the controller, and the controller sends a received shooting instruction to the camera, calculates the body length, the body width, the body circumference and the body area of a fish according to a fish body image anda scale image, sends the received weighing instruction to the weighing sensor, and receives the body weight of the fish. The camera captures the images of the fish body on the tray and the scale of the tray according to the shooting instruction, and obtains the fish body image and the scale image and then sends the images to the controller. The weighing sensor weighs the fish body according to theweighing instruction, obtains the weight of the fish body and sends the weight of the fish body to the controller. The device based on the machine vision measures the data of the fish body, is smallin time consumption, is small in fish body pressure, is small in damage risk, is small in impact on the feeding rate, and is accurate in measurement.

The invention provides a plant nutrient solution and a preparation method thereof. The plant nutrient solution is mainly prepared from, 380-420 parts of potash nitrate, 80-100 parts of potassium phosphate, 50-70 parts of hybridized adsorbing agent, 180-220 parts of epsom salt, 1.8-2.2 parts of manganese sulfate monohydrate, 2-3 parts of boric acid, 12-18 parts of Ferric sodium ethylene diamine tetraacetate, 380-420 parts of calcium nitrate terahydrate, 0.3-0.5 part of blue copperas, 0.8-1.2 parts of heptahydrate, 0.006-0.010 part of ammonium octamolybdate, 0.001-0.005 part of calcium superphosphate, 0.0008-0.0012 part of sodium chloride, 0.0008-0.0012 part of sodium molybdate and 0.0015-0.0025 part of ferrous sulfate. The plant nutrient solution is suitable for all plant growth, and the plant yield can be effectively increased; the plant nutrient solution can be used for fish culture and suitable for fish growth.

The invention discloses mandarin fish feed and a preparation method thereof. The mandarin fish feed comprises, by weight percentage, 20-30% of fish and shrimp meal, 30-40% of soybean meal, 10-20% of corn flour, 10-20% of barley flour, 10-20% of minerals, 1-5% of multivitamin mineral salt, 1-5% of growth promoting agent and 1-5% of antibacterial drug. The preparation method of the mandarin fish includes: preparing the traditional Chinese medicine type antibacterial drug, mixing and stirring, and granulating. The mandarin fish feed has the advantages that the growth promoting agent and the antibacterial drug are added into the feed, the granulated feed is produced after granulation, curing and drying, and the feed is convenient in feeding, capable of effectively guaranteeing the nutritional value of mandarin fish, capable of increasing mandarin fish growth speed, capable of effectively preventing mandarin fish diseases and high in mandarin fish survival rate.

The invention discloses a nutrition formula for improving the gill barrier function, application and feed adopting the nutrition formula. The nutrition formula comprises the following components in parts by weight: 0.00004 to 0.002 part of leucine, 0.8 to 2.0 parts of threonine, 0.37 to 0.98 part of pantothenic acid and 0.0008 to 0.0027 part of manganese. According to the nutrition formula provided by the invention, the components are added, so that the gill barrier function can be improved, the toxicity of copper ions can be decreased, the copper content of gill and serum can be lowered, and the health of the gill and a fish body can be ensured; meanwhile, fish growth can be promoted, and the feed efficiency can be improved; the feed has the advantages of convenience in use, low cost, no toxicity, safety and the like.

A low-cost aquatic structure optimized for water quality enhancement and wave mitigation. The structure is preferably comprised predominantly of recycled polymer scrap or other low-cost, high-surface-area materials, such as jute. The structure may be either buoyant or non-buoyant. Buoyant embodiments of the structure are preferably tip resistant. All embodiments are preferably wave damping. The structure is preferably porous and permeable, and has a large internal surface area for colonization by nutrient-removing microbes. The structure may alternately be used to add nutrients to a water body to promote fish growth for aquaculture applications.

The invention discloses an artificial feed for aquarium fishes. The artificial feed comprises the components of fish meal, antibacterial peptide, raw bran, soybean meal, calcium dihydrogen phosphate, cuttlefish cream, fish oil, phosphatide oil, premix, earthworm powder, fly larva powder, yeast powder, shrimp powder and bacillus. The artificial feed disclosed by the invention can increase the breeding survival rate of the aquarium fishes, can accelerate the growth of the aquarium fishes, can reduce the enteritis attack rate of carnivorous aquarium fishes in a breeding process, and can contribute to realizing large-scale popularization of the breeding of the aquarium fishes.

The invention discloses an industrialized aquaculture pond. A suspended matter adsorption device is arranged in an existing pond, a mud through pipe is connected to the bottom of the pond after suspended matters in the pond are adsorbed, the suspended matters are deposited and can be prevented from being mixed to suspend again, aquaculture water is purified, a circulating water pipe is externally connected, the temperature of the pond water is controlled, oxygen enrichment is performed in the pond water, a superior growth environment is provided for fish aquaculture, a fishing net is laid on a bottom mud layer and drawn through a pull rope when fishes grow to reach proper sizes, and catching is facilitated. The industrialized aquaculture pond is simple in structure and high in practicability, the suspended matters are recovered and deposited, death of the fishes caused by unsmooth breathing is avoided, and economic values of aquaculture are improved.

The invention discloses a silurus asotus growth hormone (saGH)-cell penetrating peptide trans-activating transcriptional activator (TAT) fusion protein and its preparation method and use. The saGH-TAT fusion protein can be used for promoting bony fish growth and resisting osmotic pressure. The preparation method of the saGH-TAT fusion protein comprises the following steps of extracting RNA from the pituitary gland of a live silurus asotusm, carrying out a reverse transcription-polymerase chain reaction (RT-PCR) process to obtain a cDNA fragment containing a GH gene mature peptide encoding segment, connecting GH and TAT, introducing the complex of GH and TAT into an expression vector pET22b (+), and carrying out expression in an escherichia coli expression strain BL21(DE3) to obtain the purified saGH-TAT fusion protein. Through a feeding, injection or immersion method, the saGH-TAT fusion protein can improve a fish growth rate to different degrees and improve strong saline water tolerance. Compared with a single GH expression protein used for fishes, the saGH-TAT fusion protein has better effects.

The invention relates to a high-density aquiculture method. The method comprises control on water temperature of a culture pond and control on water quality of the culture pond. The control on the water temperature of the culture pond is arranging the culture pond in a factory designed with constant temperature; and the control on the water quality of the culture pond is as follows: firstly, pumping ground water for water culture and bacterial culture, determining change of the water quality at any time, and then adding the ground water to the culture pond when the water quality index reaches N-NO2<0.1mg / L, N-NH3<0.1mg / L and pH value at 7-8.5 and no H2S nor CO2 toxic gas exists. The control on the water temperature of the culture pond causes the water temperature to be constant at the most suitable temperature range for fish growth, and optimization process on the water quality of the culture pond causes the water quality to always keep the most suitable water-quality requirement for the fish growth, which realizes high-density aquiculture, the culture density reaches 113kg / m, thus greatly reducing occupancy of farmlands and coastal zones caused by the aquiculture, and the method has high economic value.

The invention discloses a compound Chinese herbal medicine immunopotentiator for fish, and a preparation method and application thereof. The compound Chinese herbal medicine immunopotentiator is prepared from bulk drugs of, by weight, 15-25% of astragalus mongholicus, 10-12% of garlic, 8-11% of wolfberry, 9-11% of wild chrysanthemum, 9-11% of lucid ganoderma, 9-11% of hawthorn, 8-12% of medicatedleaven, 8-12% of liquorice, 4-6% of ramulus mori and 4-6% of houttuynia cordata. The compound Chinese herbal medicine immunopotentiator is safe, environment-friendly, can comprehensively enhance fishimmunity, premonition, overcomes defects of mere prevention of vaccine usage, and solves a problem of vaccine prevention failure caused by different pathogen serum types. In addition, the compound Chinese herbal medicine immunopotentiator can promote fish growth.

The invention discloses a fish growth and multiple resistance property integrated breeding method. By identifying offsprings of fish breeding parents, parent progeny, and family type fishes after hybridization, the high-quality variety is bred. The invention also discloses an identification method for fish growth and multiple resistance property integrated breeding; the bred high-quality variety is further verified and determined, the fish variety with growth property and resistance stability is obtained, and the problems of poor growth property and even death due to poor suitability of fish varieties to different environments, e.g. oxygen resistance, cold resistance and heat resistance, in the existing fish fry breeding process are solved.

The invention discloses an intelligent accurate feeding system and method for aquaculture baits. The system comprises a detection system (1), a control system (2), a feeding system (3), a supply system (4) and a pond system (5), wherein the detection system (1) is used for transmitting dynamically and accurately measured bottom mud thickness data of the pond system (5) to the control system (2), the control system (2) is used to realize intelligent and accurate feeding through calculation according to the bottom mud thickness in combination with parameters such as the fish storage quantity, fish type, the fish growth index, the culture density and the like, and the supply system (4) is used for carrying out scientific regulation, control and feeding on the feeding system (3). According tothe intelligent accurate feeding system, the outstanding problems that the wasting of the baits is serious during the feeding, the feeding operation is poor in accuracy, the bottom mud and a water body are seriously polluted, and the quality of aquaculture products is reduced increasingly are solved, and the energy conservation, emission reduction, restoration of a water environment and environment-friendly healthy sustainable development of the aquaculture are promoted.

The invention relates to a drug for controlling a fish gas disease which is characterized by being prepared from the following raw materials in parts by weight: 30-40 parts of gall nut, 30-40 parts of Chinese teasel root and 20-40 parts of salt. A preparation method comprises the steps of: weighting 30-40 parts of gall nut and 30-40 parts of Chinese teasel root in parts by weight; adding water in the proportion of 1:10-12 relative to the total weight of the raw materials, soaking for 20-30min, decocting twice according to a conventional method; decocting with slow fire for 30-40min after first boiling, filtering; adding 6-8 times of water in filter residue for boiling and then decocting with slow fire for 20-30min, filtering; merging two times of filtrate, then filtering, condensing the filtrate at a temperature of 40-50 DEG C until the relative density is 1.05-1.20; finally, cooling concentrate to room temperature; then weight 20-40 parts of salt, slowly adding into concentrate for dissolving the salt, and packaging into 5000ml / bottle. The invention has the advantages of reasonable formula, simple preparation and environment protection without pollution, effectively controls the fish gas disease through synergistic effect of the raw materials, promotes the fish growth, improves the survival rate, and remarkably enhances the economic benefit.

The invention discloses a method for cultivating synechogobius hast (Temminck and Schlegel) fry, which belongs to agricultural mariculture technology. The method relates to the following: 1, a step of artificially breeding, which is to enclose 30 M2 of breeding pool as a dark room, put disinfected tiles at the bottom of the pool, observe the gonad maturation of fishes, put parent fishes in a male-female ratio of 1:2 into the pool in an IV stage at a water temperature of 10 DEG C, promote gonad maturation through illumination, cultivation water temperature and nutrition-enhancing measures and ensure that the fishes lay eggs at 13 DEG C and fertilized eggs are sticky; and 2, a step of cultivating larvae and juvenile fishes, which is to move attached fertilized eggs into the breeding pool at a water temperature between 14 and 17 DEG C at the salinity between 2.7 and 2.8 percent with 6.5-8 mg / l of dissolved oxygen, lower aquaculture density with fish growth, feed by adopting a method of combining various types of bait and userotifer, artemia nauplius and compound feed for the larvae and the juvenile fishes different in day age. Fry can reach 30 to 50 mm after 50 days and be used for aquaculture or propagation and release, and is a novel species for mariculture in Zhejiang.

The invention relates to a live protection and bile secretion promotion preparation for fish and a preparation method thereof, belonging to the technical field of aquatic product compound feed additive. The method is characterized by comprising the following steps: preparing curcumin, choline chloride, hemolytic lecithin and carrier; and sufficiently mixing the components and crushing to prepare dry powder. Through the invention, the preparation process is simple, and the cost is low; based on the metabolic mechanism of fish, the liver protection and bile secretion promotion preparation for fish supplements Chinese herbal medicine as well as choline chloride of Western medicine; by combining Chinese medicine and Western medicine, the preparation regulates and controls the fat metabolism of fish, and can promote lipolysis, reduce fat deposition in liver and promote protein synthesis; and the preparation can be used for improving the immunity and oxidation resistance of fish and can promote fish growth.

The invention discloses a novel deepwater lake water restoring method through bubble plume dispersion oxygenation. In a water stratification period, a plume oxygenation jetting device is arranged at the bottom of a lake, an air source of the plume oxygenation jetting device is pure oxygen, bubbles jetted from the plume oxygenation jetting device and introduced water form air-water mixture, then the air-water mixture ascends to the maximum altitude before thermal stratification while the bubbles are continuously dissolved and disappear, sinking plume is formed due to density difference, oxygen-rich water diffuses all around and enters a distant water environment after the plume sinks to the balance depth, the hypolimnion is directly oxygenated, and the ascending velocity of the air-water mixture is 0.12-0.17m / s. The novel deepwater lake water restoring method through the bubble plume dispersion oxygenation is strong in pertinence; ascending bubbles are rapidly dissolved, the oxygen transfer efficiency is high, the oxygenation effect is good, and the operation difficulty and construction difficulty are greatly simplified; and the novel deepwater lake water restoring method through the bubble plume dispersion oxygenation has the characteristics of no disturbance on the thermal stratification, no damage of a lakebed cold water fish growth environment, high feasibility, low implementation risk and good water restoring effect.

The present invention relates to the field of fish feed, and especially relates to black carp feed. The black carp feed is uniform in nutrition, good in palatability and capable of improving the fish growth rate. The black carp feed is proportioned by the following components in parts: 0.5-0.7 part of fructus forsythiae, 0.1-0.5 part of rhizoma coptidis, 5-25 parts of sesame cakes, 3-15 parts of malt roots, 5-20 parts of corn germ meal, 0.5-1 part of talcum powder, 0.5-0.7 part of fat emulsifier, 2.5-3.5 parts of calcium dihydrogen phosphate, 5.5-10.5 parts of Alternanthera philoxeroides, 2-5 parts of garlic powder, 4-7 parts of herba houttuyniae powder, 0.3-0.6 part of salt, 1.5-4.5 parts of weed powder, 10-25 parts of soybean oil, 5-10 parts of corn protein powder, 0.3-0.5 part of zeolite powder, 6-10 parts of shrimp powder, 5-7 parts of sesame seed meal, 5-15 parts of alfalfa meal and 0.1-0.5 part of fat emulsifier.