849 results about "Fish farming" patented technology

An autonomous open-ocean fish-farming structure has a submersible cage enclosure tethered to a topside buoy. The topside buoy stores feed, is equipped with radio telemetry to communicate positioning signals transmitted from external sources, and generates electrical power using, for example, a hybrid solar OTEC heat engine. The structure is navigated and maintained in a geostationary position within the ocean environment by means of position-correction technology and is propelled by thrusters attached to the cage enclosure and, optionally, to the underside of the topside buoy. The self-positioning, self-powered fish-farming structure enables unmanned, extended marine deployment in deeper ocean waters without the need for tethering or anchoring to the ocean floor. Multiple structures can be maintained in a spaced apart configuration to comprise a flotilla of fish farming structures attended by a tender ship that is autonomous, easily serviced and conveniently relocated.

The invention relates to a general-purpose composite Chinese herbal medicine immune enhancer for freshwater cultured fish, which is made of raw materials with the following weight ratios, based on the amount added per ton of feed: rhubarb 800-2000g; Sanqi 350-1000g; water Silybum 1200-2500g; Cassia 600-800g; Astragalus 600-2000g; Scutellaria baicalensis 500-900g; 500-1500g; Garlic 1000-2000g. After many tests in the laboratory, it has been proved that the general-purpose compound Chinese herbal medicine immune enhancer for freshwater aquaculture fish can improve the survival rate of a variety of freshwater aquaculture fish in the process of attacking viruses; The long-term breeding experiment of farmed fish feed proves that the general-purpose compound Chinese herbal medicine immune enhancer for freshwater farmed fish can effectively reduce the incidence of a variety of high-density farmed freshwater fish and improve the survival of the breed; the additive is safe, efficient, and has no side effects for long-term use. The breeding objects have strong vitality, rapid growth, bright body color, high feed conversion rate, and good breeding benefits.

The invention discloses a seawater factory-style circulating water fish farming treatment method which comprises, removing the residual bait and excrement from the seawater flowing out of the fish pond through full-automatic conduit pipe filter apparatus, entering foam separate tank from the circulating pump to remove part of the suspended matter and protein, then removing ammonia nitrogen through biological cleaning tank, adjusting water temperature and pH, disinfecting through ultraviolet rays, oxygenation, charging the detected water into the fish pond again, thus completing a circulation.

Disclosed is an ecological treatment and recycling system for factory fish-farming wastewater, which belongs to the field of fishery cultivation. The system comprises facilities and devices for treating recycle water like a fish pond, an ultra-low axial flow pump, a jet aeration oxygenation facility, a foam separating facility, a pure oxygen supplying device, a temperature control device, artificial wetland and the like, using an open type high-volume feed canal and a backwater canal to replace sealed pipes, using the foam separating facility to replace a protein separator, using the temperature control device of deep well to replace a heating-up and cool-down device, using the jet aeration oxygenation facility to replace an automatic aerator, a gas relay rock and an air pipe, using water plants of the artificial wetland and economic filtering materials to replace purifying filtration devices like a solid-liquid separation device and the like. The invention achieves functions like water lift, aeration, oxygenation, defoaming, temperature control and the like. The invention optimizes and combines a facility engineering technique and a biologic technology to replace expensive and complex water-treating equipment, and has the advantages of safety and dependability, simple management, energy-saving and environment protection, high yield and high grade and the like.

A submersible rotatable cage for fish farming comprises a central axle, a buoyant structure positioned about the central, a netting attached to the buoyant structure and an actuator in operable communication with at least part of the buoyant structure and adapted to facilitate rotation of the buoyant structure about the central axle while the cage is in a submerged position. The cage can form part of a system, which includes a net cleaning apparatus, a tethering mechanism and sweep net, that can be used for nearly complete underwater fish farming.

Provided herein are systems and methods for sustainable aquaculture. The methods provided herein allows recovery and / or recycling of autochthonous nutrients in fish farming, and recovery of allochthonous nutrients present in eutrophic water. The systems provided herein comprises two closely spaced cages, an array of rotary panels that regulates the flow of matters between the two cages; and a means for producing a directional water current.

The invention discloses an ecological fish farming method in a rice field, which comprises the following steps of rice field preparation, rice field transformation, fish farming facility preparation, rice seedling transplantation, biosorption, rice field disinfection, irrigation, fertilization, stocking fish seed selection, stocking fish fry disinfection, stocking and feeding management, wherein annular field fish ditches dug through the rice field transformation are V-shaped ditches arranged on the inner sides of ridges around the rice field; the biosorption utilizes a biosorption agent to adsorb heavy metal in rice field soil and irrigation water; and stocking fish seeds are selected from eight-beard catfishes. The invention further discloses rice produced by rice plants planted in the rice field using the ecological fish farming method. According to the method and the rice, an effective usable area of the rice field is increased significantly; pollution of the heavy metal such as lead and cadmium is reduced; integral benefits of fish farming in the rice field are improved; the ecological rice contains rich protein, more microelements such as iron, magnesium and calcium, and vitamin C, has no chemical pesticide residual, and is green and environment-friendly; and the content of the heavy metal such as lead and cadmium is very low.

The invention discloses a biogas slurry ecological purification device, which comprises an adjusting tank (1), a facultative tank (2), an aerobic tank (3), a fish culturing tank (4) and a clarifying tank (5), wherein all tanks have a liquid outlet pipe and a liquid inlet pipe; the liquid outlet pipe of a tank is communicated with the liquid inlet pipe of a next tank and a control valve (8) is arranged between the liquid outlet pipe of the tank and the liquid inlet pipe of the next tank; effluent of the clarifying tank (5) passes through a three-way pipe (6) and a control valve of the three-way pipe (6) to be connected with a discharge pipe and a return pipe (7) communicated with the adjusting tank (1); the liquid outlet pipe of the adjusting tank is provided with a flow meter (14); the return pipe (7) is provided with a circulating water pump (11); and the aerobic tank (3) is provided with an aeration device (12) and a filler. Biogas slurry purification by the device is realized by culturing water hyacinth in the facultative tank (2), algal-bacteria, plankton and mussel in the aerobic tank (3) and fish in the fish culturing tank (4), using the algal-bacteria and the plankton as fish baits, and clarifying the effluent till the effluent meets national standards for integrated wastewater discharge. The device has the advantages of high speed, high efficiency, circular purification and diversified operations.

A scalable fish rearing raceway system is provided, incorporating a fish containment structure having two semi-circular end sections, and two or more parallel fish raceways, surrounding a central zone for housing water treatment systems and a secondary fish crop. Heavy particulates are eliminated from the main fish rearing channels by use of conical areas located at either end of the parallel elongated raceways. Continuous removal of dead or dying fish from the raceway is accomplished by means of a floating mortality catcher consisting of a screened ramp at the surface of the cones which continuously collect moribund and dead fish. Grading bars separate and move fish underwater to an adjacent raceway through a common fish transfer channel. This larger scalable fish production system substantially reduces the direct labor and capital costs associated with the production of fish as compared with conventional circular fish rearing tanks.

The invention discloses an intelligent fish farming system based on the Internet of Things. The intelligent fish farming system based on the Internet of Things comprises a water quality monitoring station, an oxygenation control station, a water supplying and discharging control station, a temperature control station and a monitoring center. By the adoption of the intelligent fish farming system based on the Internet of Things, fish farmers can learn fishing water environmental information in real time, obtain abnormity warning messages and water quality warning messages in time, and regulate and control equipment in real time according to a water quality monitoring result through information terminals such as mobile phones, PDAs and computers, scientific fish farming and management of aquaculture are achieved, energy is saved, consumption is reduced, and environmental friendless is achieved.

The invention discloses a method for breeding allogynogenetic crucian carp fry at a low temperature. The method comprises the following steps of preparing a male and female parent fish dedicated culture pond, selecting and breeding male and female parent fishes, carrying out hasten parturition on the male and female parent fishes, enabling the male and female parent fishes to lay eggs and be fertilized, enabling fertilized eggs to unstick, hatching the fertilized eggs, demolding and breeding the fertilized eggs into small fry, and breeding the small fry into large-size allogynogenetic crucian carp summer flower fry by sending the small fry into the culture pond. According to the method disclosed by the invention, high-quality allogynogenetic crucian carp fry can be bred when the temperature is low in Spring, and the emergence rate and the survival rate of the allogynogenetic crucian carp fry are very high; the production demands of the allogynogenetic crucian carp fry can be ensured, and the economic benefit of an allogynogenetic crucian carp breeding user can be greatly increased; the sustainable development of an allogynogenetic crucian carp breeding industry and the whole ecological benefit, the economic benefit and the social benefit of a fish farming industry can be greatly increased.

An autonomous open-ocean fish-farming structure has a submersible cage enclosure tethered to a topside buoy. The topside buoy stores feed, is equipped with radio telemetry to communicate positioning signals transmitted from external sources, and generates electrical power using, for example, a hybrid solar OTEC heat engine. The structure is navigated and maintained in a geostationary position within the ocean environment by means of position-correction technology and is propelled by thrusters attached to the cage enclosure and, optionally, to the underside of the topside buoy. The self-positioning, self-powered fish-farming structure enables unmanned, extended marine deployment in deeper ocean waters without the need for tethering or anchoring to the ocean floor. Multiple structures can be maintained in a spaced apart configuration to comprise a flotilla of fish farming structures attended by a tender ship that is autonomous, easily serviced and conveniently relocated.

The invention discloses a low-carbon and environment-friendly fish-farming method. The method comprises the following steps: (1) performing cage culture in a pond and assembling a fish feces recovery system and a translation bottom sewage self-leaking system under a cage to recover fish feces, so that sewage and deposits at the bottom of the pond are discharged effectively, and pollution of fish feces and residual feeds on a water body is lowered; (2) arranging aeration equipment outside a cage culture zone to promote flow of the upper, lower and surface layers of the water body and increase dissolved oxygen of the water body; (3) planting aquatic plants in a floating bed and combining pond culture and wet land planting and culture outside the cage so as to realize coexistence of fishes and vegetables and biologically purify water; (4) performing scientific fish culture by adopting a scientific culture mode represented by seven words, namely, water, planting, feed, prevention, separation, mixing and labor. According to the low-carbon and environment-friendly fish-farming method, the current-stage pond fish culture facility is changed, engineering of innovative culture equipment is realized, scientific design and scientific layout are achieved, scientific combination of comprehensive technologies such as physical and biological purification and the like is performed, combination with an ecological and environment-friendly culture technology is realized, and integrated innovation is implemented.

The invention provides a cage culture method, a cage and a system comprising the cage. The periphery and the bottom of the cage adopt water-proof thermal-insulating cloth with certain strength; the top part is opened, a drainage hole is arranged at the bottom of the cage; a water distribution system is arranged above the cage, and the entire cage is arranged in the water; low-temperature water is pumped by a pump from the deep part of the lake through the water distribution system, and the water flows into the cage from the upper part of the cage; the water in the cage is cooled or heated up to ensure proper temperature for the normal growth of fish which needs different temperatures; in addition, a mesh bag is arranged inside the cage for catching the fish, and thereby, the fish can be caught and lifted up easily.

A buoyancy control system for a fish cage used in fish farming. The buoyancy system comprises spars having first and second sections separated by a bulkhead. The first section is filled with air and hermetically sealed from the second section and from the surrounding environment. The second section is sealable and may be filled with air or water to adjust the buoyancy of the spar. A fish cage having the buoyancy control system can be raised or lowered in accordance to the amount of air and water in the second sections of the spars. A segmented anchor can connected at each spar.

The invention relates to a photocatalysis-plant synergy water purifying method for fish-farming water, which comprises the following steps that: 1) sewage in a fish pond is pumped into a filter tank by a diving pump, solid impurities are filtered by sponge foam, and the intercepted solid impurities are discharged by a blowdown valve; 2) clear water filtered by sponge foam falls into a nacreous glass catalytic reaction curtain which is vertically hung on the side wall of the filter tank to contact and react with a photocatalysis material, wherein the nacreous glass catalytic reaction curtain is formed by connecting glass balls in series and in parallel, and the surfaces of the glass balls are burnt and plated with a TiO2 series catalytic material; and 3) the catalyzed water falls into a plant culture tank; and the water flows into the fish pond after pollutants in the water are reduced. The method has the advantages of good natural light transmission, high mass transfer efficiency, no oxygen supplement and nitrogen release power consumption and no blockage, and the practical characteristics of low cost and continuous work. Except for the water pollution treatment for circulating water fish-farming, the method can also be applied to low concentration water treatment of the occasions of environmental protection, civicism, landscape greenbelts and the like.

The invention provides a vegetable, rice and flower planting and net cage intercropping combination device. The device comprises a floating block, a net cage, a cultivation container and a fastening piece; the net cage is a circular or square container which is formed by a nylon net in a surrounding mode and does not have the top face, the floating block is placed at the top of the net case, and the cultivation container is placed on the floating block. By means of a vegetable, rice and flower planting and net cage intercropping combination device, pesticides are not needed, and the vegetable and rice planting cost is low; in addition, the environment is easily protected, a water body is purified, and economic benefits are generated through ponds and lakes. When the method is adopted for planting vegetables and rice and culturing fishes, ingredients such as nitrogen, phosphorus and potassium contained in the ponds and the lakes are absorbed by the cultured products and are microelements needed by the human bodies, nutrition is abundant, and the quality of the products is better than that of products cultured in land for growing field crops.

The invention discloses a light emitting diode (LED) illumination system with an adjustable color temperature for industrial fish farming. in construe, the system comprises a power supply module, a white light LED module and a color temperature adjustment module, wherein the power supply module is respectively connected with the white light LED module and the color temperature adjustment module; the color temperature adjustment module is composed of a red light LED module, a green light LED module, a blue light LED module and a current control module; and the red light LED module, the green light LED module and the blue light LED module are respectively connected with the current control module in series. The light emitting diode illumination system with adjustable color temperature for industrial fish farming has the beneficial effects that the color temperature can be adjusted according to the practical situation in the farming process so as to satisfy requirements of different marine fishes in different growth periods on light color, light intensity and the light period, thereby accelerating fishes to healthily grow and improving the economic benefit of industrial fish farming.

The invention discloses a feed putting device for fish farming. The feed putting device includes a bearing bottom plate, a support frame is vertically fixed to the bearing bottom plate, a horizontal support platform is horizontally fixed to the support frame, a storage box is vertically fixed to the horizontal support platform, a discharging channel is formed between every two adjacent dispersingpartition plates, an impact push block is slidably arranged inside a conveying pipe, and a limit sleeve cylinder is vertically fixed to the wedge face of a wedge block. According to the feed putting device for fish farming, length extension is achieved through extension of a reset spring, so that elastic potential energy is stored; after a fan-shaped pressing block presses a transmission plate, agear is driven to be separated form a second straight rack, and under the action of restoring force of the reset spring, the purpose is achieved that the impact push block impacts and puts the feed inthe conveying pipe; the feed is dispersed through the dispersing partition plates, so that the feed is evenly put, and the putting range is larger; a sleeve plate moves left and right, therefore, thestorage box intermittently passes through a discharging hole to do discharging actions, excessively concentrated putting of the feed is avoided, and the putting effect is better.

The invention discloses an aggregated internal cycle fish farming device. The aggregated internal cycle fish farming device includes an aeration water pushing system, an aggregated farming system, a mechanical feeding system, a dirt collection system and a pool self-cleaning system; the aeration water pushing system pushes water to successively enter the aggregated farming system, the dirt collection system, and the pool self-cleaning system, and then one or more aeration water pushing systems arranged in the pool self-cleaning system push the water to the aggregated farming system so as to form a water large cycle. The aggregated internal cycle fish farming device can solve the problem of high density farming in dynamic water, can improve the utilization rate of soil, can increase the yield and economic benefits, can maintain high density farming water quality, can effectively collect fish metabolin, and can save water resources.

A buoyancy control system for a fish cage used in fish farming. The buoyancy system comprises spars having first and second sections separated by a bulkhead. The first section is filled with air and hermetically sealed from the second section and from the surrounding environment. The second section is sealable and may be filled with air or water to adjust the buoyancy of the spar. A fish cage having the buoyancy control system can be raised or lowered in accordance to the amount of air and water in the second sections of the spars. A segmented anchor can connected at each spar.

The invention relates to the technical field of fish farming, and discloses an automatic feeding device for fish farming. The automatic feeding device for fish farming comprises a floating plate, wherein a feeding tube is arranged in the middle of the floating plate, a drive device is arranged on the upper end of the feeding tube, and a telescopic rod which extends into the inner cavity of the feeding tube is arranged on the lower end of the drive device; and a material storage tube is fixedly connected to the lower end of the telescopic rod, heating rods are arranged symmetrically in the inner cavity of the material storage tube, and a trigger device is fixedly installed on the floating plate and at the left side of the feeding tube. According to the automatic feeding device for fish farming, the drive device is started when a bait ball is bit by fishes, the material storage tube is driven to rotate and fall, and a plug is pulled by a drawstring so that feed is released into a feedingball; through the cooperative effect of a first magnet and a second magnet, rotary feeding is performed by the feeding ball, and through the cooperative arrangement of the heating rods, the effect ofautomatic starting of feeding is achieved through habits of the fishes, so that the feeding range of the feed is expanded, waste of the feed is avoided, and dryness of the feed and prevention of mildew are ensured.

The invention relates to an ultra-high-density industrial pond ecological breeding system and a regulation method thereof. According to the method, a breeding pond is divided into a main fish breeding area, a water treatment area and an accessory fish breeding area. Eating fishes are bred in the main fish breeding area, maximum fish carrying capacity is 120-160 kg / m<3>, the water treatment area is mainly used for biological purification treatment of breeding water, and filter feeding fishes are bred in the accessory fish breeding area. The breeding water is driven by an underwater plug-flow aeration device to enter the water treatment area for purification treatment from the main fish breeding area, is deep purified by the accessory fish breeding area and returns to the main fish breeding area, and the closed circulation process of the breeding water is finished. Effective microbial agents are fed, biochemical treatment of the breeding water is enhanced by a 'bacteria-algae-fish' symbiotic comprehensive regulation method, toxic and harmful substances in the water are removed, water eutrophication is prevented, and healthy breeding of the ultra-high-density pond is achieved. Breeding wastewater discharge is avoided, yield and quality are high, energy consumption is low, water and soil resources are protected and saved, and the method is a sustainable modern agricultural breeding and multiplication mode.

A fish farming net having conductive wires integrated into the filaments of the net. The conductive wires are arranged in circuits, each of said circuits defining a field connected to an electronic apparatus that monitors a certain electrical parameter of the field. The wires of each circuit are arranged in a pattern whereby the wires are close enough together that a hole large enough for fish to escape will necessarily break one of the wires. In the event the circuit is broken, the monitoring apparatus detects a change in the electrical parameter being monitored and signals an appropriate alarm.

The invention belongs to a bowl-shaped floating artificial reef and throwing device. The device is characterized in that an artificial reef base (9) is manufactured into a bowl shape, the lower portion of the artificial reef base (9) is provided with conical positioning insertion heads (10), and fish inhabiting chambers (20) are arranged in an artificial reef body (8); artificial reef hanging rings (17) are connected with hooks (6) through artificial reef hanging ropes (7), the upper ends of the hooks (6) are movably connected with the end portions of lower connecting rods of four connecting rods (15) through a fourth connecting shaft (16), and two upper connecting rods are fixedly connected with a balloon (4) through connecting rod fixing ropes (13); the balloon (4) is provided with an electric control valve (12) and a balloon hanging ring (26); the balloon hanging ring (26) is connected with hanging rings (2) installed on the lower portions of four light air bags (1) through hanging ropes (3). The device has the advantages of enabling coastal or offshore fish farming to be greatly developed, improving air quality and improving living environment of people.

The invention relates to a transportation method for natural fingerling or artificial breeding fingerling of coilia nasus, belongs to the technical field of fish farming, and aims at solving the problem of providing a method which is matched with the transportation of coilia nasus fingerling. The technical scheme of the invention comprises selection of a transportation season, allocation of a container for containing fingerling, and setting of the salinity of water for transportation. The transportation method is characterized by adding Yangtze River water or original pond water with the salinity of 0.8%-1% without oxygenation, wherein the water level of a water tank accounts for about 3 / 4 of the volume of the container, the fingerling specification is 8-15cm, the fingerling transportation density is about 1.5g / L, the transportation water temperature is 15-22 DEG C, and the transportation time is preferably not more than 24 hours. The transportation method is applicable to the transportation of the coilia nasus fingerling, with the transportation survival rate above 95%, and the method is simple and convenient, and easy to master.

The invention discloses a foul drainage system at the bottom of a pond for culture. The foul drainage system comprises a pond main body, the bottom of the pond main body slopes in a certain degree, a sewage draining exit is arranged at the lowest part of the bottom of the pond main body, an escape-preventing net is arranged at the sewage draining exit, and the pond main body is communicated with a sewage draining pipe system through the sewage draining exit at the bottom of the pond main body. According to the foul drainage system disclosed by the invention, the current drainage work for pond culture is scientifically designed and distributed, and scientific assembly of comprehensive technologies such as physical cleaning, biological cleaning and the like is implemented, so that the pond can desilt automatically; meanwhile, sludge of the pond does not need to be cleared for 5 to 10 years, a good environment is created for the growth of fish, therefore farmers can implement continuous and healthy culture, the quality safety of aquatic products is guaranteed, and a foundation is built for achieving a prosperous and better-off life through scientific fish farming.

The invention discloses a marine floating type wind generating set and fishery cage culture comprehensive device. The marine floating type wind generating set and fishery cage culture comprehensive device comprises a wind generating set, a wind turbine tower cylinder, an accommodation platform, a floating type wind turbine foundation in a cone-frustum-shaped steel structure and a mooring device from top to bottom; the wind generating set is mounted at the upper end of the wind turbine tower cylinder, the lower end of the wind turbine tower cylinder is fixed to the floating type wind turbine foundation, and the accommodation platform surrounds the bottom of the wind turbine tower cylinder; the mooring device is connected to the floating type wind turbine foundation and can moor the comprehensive device to a seabed; and the marine floating type wind generating set and fishery cage culture comprehensive device further comprises side face netting, bottom face netting and a lifting device;the side face netting is in a tensioning type and is fixed to the side face of the floating type wind turbine foundation in an encircling mode; and the lifting device is arranged in the floating typewind turbine foundation and connected with the bottom face netting to enable the bottom face netting to rise and fall. A huge culture cage is formed in the internal space of the floating type wind turbine foundation, the cage does not deform, the automation degree is high, and the effects of power generation on the upper portion and fish-farming on the lower portion can be achieved; and the marinefloating type wind generating set and fishery cage culture comprehensive device has good stability and seakeeping performance and is suitable for medium-depth water sea areas with the depth being within 200 m.