11355 results about "Aquaculture" patented technology

The present invention relates to an integrated closed loop system for aquaculture in at least one culturing tank and using continuous bioreactor technology for the biological treatment and removal of organic material, nitrogen and phosphorous, comprising: an integrated, partially or wholly closed loop system for waste water treatment, where the water contains nitrogen containing compounds and / or substances, comprising at least one production unit of such nitrogen containing compounds and / or substances and using continuous bioreactor technology for the biological treatment and removal of organic matter, nitrogen and phosphorous from the said water at continuous flow, comprising: a) at least one suspended carrier bioreactor for bacterial growth under anoxic conditions to cause anaerobic denitrification, with one or several compartments, preceding b) at least one suspended-carrier bioreactor for bacterial growth under oxic conditions to cause aerobic nitrification, c) the denitrification taking place after the production unit, and d) the nitrification taking place prior to the production unit in a by-pass mode as part of the continuous flow.

The invention discloses a special biological fish fertilizer and a preparation method for the fertilizer used in aquiculture; wherein, the biological fish fertilizer mainly comprises raw materials as follows: microbiological preparation, inorganic fertilizers, fermentation organics, micro-mineral amino acid chelate, mineral composites, and water quality improver. The preparation method for the special biological fish fertilizer in aquiculture comprises steps as follows: microbiological preparation is produced; fermentation organics is then produced, and the micro-mineral amino acid chelate is produced, eventually the finished products are made. The special biological fish fertilizer has the advantages of limiting the growth and reproduction of the harmful algae, promoting the large-scale growth and reproduction of the suitable food for fish, effectively improving the water quality and purifying the water environment, strengthening the fish immunity, reducing the diseases, reducing cost due to the small use level, convenient use, mild odor, no pollution to the water, and environment protection. By combining the modern bioengineering technique, low-temperature drying technique, spray-drying technique, and super-fine crushing techniques, the preparation method has the advantages of stable quality for the fish fertilizers and lower overall cost.

The present invention relates to an integrated closed loop system for aquaculture in at least one culturing tank and using continuous bioreactor technology for the biological treatment and removal of organic material, nitrogen and phosphorous, comprising: an integrated, partially or wholly closed loop system for waste water treatment, where the water contains nitrogen containing compounds and / or substances, comprising at least one production unit of such nitrogen containing compounds and / or substances and using continuous bioreactor technology for the biological treatment and removal of organic matter, nitrogen and phosphorous from the said water at continuous flow, comprising: a) at least one suspended carrier bioreactor for bacterial growth under anoxic conditions to cause anaerobic denitrification, with one or several compartments, preceding b) at least one suspended-carrier bioreactor for bacterial growth under oxic conditions to cause aerobic nitrification, c) the denitrification taking place after the production unit, and d) the nitrification taking place prior to the production unit in a by-pass mode as part of the continuous flow.

Disclosed is a process for growing the microflora Thraustochytrium, Schizochytrium, and mixtures thereof, which includes the growing of the microflora in fermentation medium containing non-chloride containing sodium salts, in particular sodium sulfate. In a preferred embodiment of the present invention, the process produces microflora having a cell aggregate size useful for the production of food products for use in aquaculture. Further disclosed is a food product which includes Thraustochytrium, Schizochytrium, and mixtures thereof, and a component selected from flaxseed, rapeseed, soybean and avocado meal. Such a food product includes a balance of long chain and short chain omega-3 highly unsaturated fatty acids. In an embodiment, lipids are produced by growing microorganisms of the order Thraustochytriales in a medium and extracting the lipids.

The present invention belongs to an industrialization aquiculture field, particularly relates to a closed cycle water industrialized fish cultivating system. The system separates solid and liquid in a storage sedimentation basin and a backwater channel sedimentation and rotational flow pool sedimentation, the tiny particulate matter is separated and purified by a sandrock filtering bed of a one level biological filter based on the water particulate matter separation, the water purified by the one level biological filter is feed into a two stage biological filter, the biological film of biologic filling material in the one level and the two stage biological filters is degraded with ammonia nitrogen and azote nitrous acid, the total purifying rate of the water particulate matter reaches more than 99%, the culturing water is added with oxygen mechanically or by liquid oxygen, finally the water is disinfected and sterilized through a ultraviolet ray sterilizer, and the clean ecological water is feed into a fish pool, thus the waste water of the fish pool may be purified and used in repeat. The fish-cultivating system implements completely closed cycle water industrialized fish cultivation, the fish is out of a disease or less, and the fish survival is more than 80%.

A method and system for the inland aquaculture of marine species using water from a saline aquifer having a heavy metals content within the acceptable limits of the EPA guidelines for drinking water. The aquifer is preferably the Coconino aquifer located in Arizona and New Mexico. The system can be used to culture microalgae, macroalgae, fish, shrimp and many other marine species. Nutrients and fertilizers can be added to the water to optimize culture conditions for particular species. Useful products can be isolated from the marine species or the cultured marine species can be harvested as useful products themselves.

Animal waste such as fecal material from swine, chicken, turkey, and cattle is converted into useful forms such as fertilizer, other types of soil builders, and even nutrient feed additives. Devices, systems, and methods are provided that allow economical conversion and in many instances, alleviate the production and release of undesirable gases such as sulfide and ammonia. In one embodiment, undesirable anaerobic and facultative anaerobic bacteria are killed at a greater rate than desirable soil compatible aerobic bacteria. The use of low temperature killing diminishes off gassing commonly associated with other techniques, and the use of gas trapping additives such as zeolites provides enhanced soil building qualities such as slow release of nitrogen and slow release of moisture to soil. The methods allow convenient adjustment of composition, allowing conversion of waste into tailored designer fertilizer suited for particular soils. Other embodiments provide other soil building qualities as well as nutrient qualities for feedstock used in animal husbandry such as aquaculture.

The present invention relates to feed additives for crustaceans in aquaculture, in particular crabs. The invention provides methods for making a biological compositions comprising yeast cells that can improve the immune functions of crustaceans in culture. The invention also relates to methods for manufacturing the biological compositions, and methods of using the biological compositions as feed additives.

The invention discloses a composite microorganism viable bacteria preparation, which contains pediococcus, yeast and bacillus with the total bacteria count of more than 1 billion per gram. The invention also discloses a method for preparing the composite microorganism viable bacteria preparation, which comprises the following steps: performing amplification liquid culture on various strains respectively according to a conventional method in the field; mixing the materials according to a required proportion; and performing solid fermentation, drying and pulverization to obtain the composite microorganism viable bacteria preparation. The invention also discloses application of the composite microorganism viable bacteria preparation in preparing an organic waste water purifying agent and an aquaculture water body purifying agent, a deodorizer, a degreasing agent or an agent for removing pipe blockages for the hygiene of a refuse tip, a public place, an agricultural product market or a kitchen, feed additives in poultry and animal husbandry or pet culture, and preparations for controlling agricultural microorganism diseases. The composite microorganism viable bacteria preparation can effectively decompose a large amount of putrescent organic matters, inhibit the growth of harmful microorganisms and eliminate peculiar smells, and has the characteristics of high ammonia nitrogen removal rate, no generation of residual sludge, effective deodorization, low cost and the like.

A method for improving and utilizing the serious saline-alkaline land at seaside includes such areas as digging ponds to build high-level field, arranging water supplying and draining ditches in the field, planting agricultural crops in the high-level field, and culturing aquatic animals in ponds.

The invention relates to aquaculture feed, in particular to litopenaeus vannamei feed without fish meal. The feed comprises an animal protein source, a plant protein source, a fat source raw material, a sugar source raw material, composite vitamin, composite mineral salt, Chinese medicine compound preparation, premix and additives. The feed has the advantages as follows: 1,palatability, ingestionspeed, growth speed and digestibility are high, the soluble loss of the feed in water is reduced, and mature time is short; 2, the amino acid is balanced, the nutritional requirement of the litopenaeus vannamei on the amino acid is met, the synthesis of the protein by the litopenaeus vannamei is effectively promoted, and discharge of the nitrogen is reduced; 3, disease resistance and survival rate are high and the culture benefit is obvious; 4, absorption and utilization rate is increased, discharge of phosphorous is effectively reduced and pollution to water is reduced; 5, the feed does not comprise artificial color and chemical additives and does not generate adverse influence on the nutritional value of the litopenaeus vannamei; and 6, dependence on the fish meal is reduced and the feeding cost is reduced.

A self-contained, floating aquaculture tank for containing fish and other aquatic animal, plant, and algal species. The aquaculture tank includes a series of panels joined together by flexible connecting joints to form a cylinder-shaped tank enclosure with a conical bottom surrounded at or near the open end by a water-resistant and buoyant foam or other material. The tank is placed into a body of water where it floats and maintains the same water temperature as the surrounding body of water. The tank includes a waste cone at the bottom of the tank enclosure to which the lower portion of each panel is attached. The tank may also include devices for harnessing wind or solar energy to power lights, air pumps, and water pumps that may be components of the invention.

The invention belongs to the technical field of aquaculture machinery, in particular to a split 360-degree automatic dried diet feeder for a fishpond. In the split 360-degree automatic dried diet feeder, a conveying mechanism is arranged between a feeding mechanism and a throwing mechanism; the upper part of a hopper of the feeding mechanism is connected with a feed bin, and the lower part of thehopper is connected with a feeder; in the throwing mechanism, the upper part of a throwing disk is provided with a feeding hole, and the lower part of the throwing disk is provided with a throwing disk rotating shaft, and the rotating shaft is driven by a power device or a throwing motor; in the conveying mechanism, a discharging hole is downwardly formed at one end of a conveying pipe which is arranged transversely, the other end of the conveying pipe is provided with a feeding hole; the feeding hole of the conveying mechanism is connected with the discharging hole of the feeding mechanism; a bearing is arranged between the discharging hole of the conveying mechanism and the feeding hole of the throwing mechanism; and throwing disk rotates relative to the conveying mechanism. The split 360-degree automatic dried diet feeder has the advantages that: the feeding mechanism is arranged on a bank, the throwing mechanism is arranged in the pond, the conveying mechanism is used for feeding,a feed is thrown to the water surface at 360 degrees, and the throwing radius can be adjusted; and the automatic dried diet feeder is suitable for automatic feeding of fishpond feeds of various sizesin the fishery industry.

The invention discloses a nano-biological water body remediation agent for aquaculture and a preparation method thereof. The nano-biological water body remediation agent comprises a carrier and complex bacteria attached to the carrier, wherein the carrier comprises the following ingredients in percentage by weight: 10-70 wt% of nano tourmaline, 10-70 wt% of nano titanium dioxide, 10-70 wt% of modified zeolite and 10-50 wt% of montmorillonite, and the complex bacteria comprise photosynthetic bacteria, denitrifying bacteria, nitrifying bacteria and phosphorus accumulating bacteria. The nano-biological water body remediation agent for aquaculture, disclosed by the invention, is economical and environment-friendly and is simple and convenient to prepare; the adsorption characteristics of the natural mineral materials are cooperated with the degradation characteristics of the microorganisms, so that organics in a water body can be efficiently adsorbed and degraded, and the remediation efficiency of water quality is higher; and the microorganisms can increase the dissolved oxygen in the water body while harmful substances, such as ammonia nitrogen and hydrogen sulfide, are efficiently decomposed, excellent-quality baits can be supplied to aquatic livestock through the propagation of the microorganisms, and the secondary pollution on the water body cannot be caused.

A lighting assembly for enhancing the growth of aquatic life in an ecosystem and method of enhancing the growth of aquatic life in such an ecosystem. The assembly includes a vessel submerged within water of the ecosystem. A substrate is disposed within and surrounded by the vessel and provides electronics to provide a conditioned current to a plurality of light emitting diodes also contained on the substrate. The light emitting diodes emit light within the water of the ecosystem that provides for growth, not only in a larger volume of the ecosystem, but in addition enhances the growth of the aquatic life.

The invention discloses a remote feeding system for aquaculture. The remote feeding system comprises power equipment, air supply equipment, feeding equipment, delivery equipment and spreading equipment, wherein the power equipment is connected with the other equipment, and provides a power energy source for the other equipment; a compression fan of the air supply equipment generates high-pressure airflows, and is automatically started and stopped at specific time points to ensure that the pressure of delivery pipelines is maintained within a safety range; a distributor sliding joint of the delivery equipment is automatically switched among different pipelines under the coordination of a proximity switch to feed feeds to a specific feeding water area through different pipelines; and after blown out of the delivery equipment, mixed baits are delivered to the spreading equipment through the delivery pipelines, and the airflows mixed with the baits are spread to target water bodies through the spreading equipment. The system can feed a plurality of target water bodies at a set time in a fixed amount, so as to improve feeding efficiency and save feeding cost.

The invention discloses an aquatic product supply chain traceability system based on an RFID and bar code technology and a method thereof. The system comprises a background database, an aquaculture base video monitoring module, an aquatic product tracing information uploading module, an aquatic product flow-direction monitoring module, a cold chain temperature receiving module, a tracing information query module and an unqualified product recalling module. The specific method comprises four parts, i.e. an aquaculture section, a processing section, a delivery section and a retail section, after all processes are finished, the tracing information are uploaded to the background database, or is read from the background database, while the transfer of the tracing information on the supply chain can be realized among all the processes by batch information stored in an RFID electronic tag. By effective combination of the RFID tap and the bar code, the invention really realizes a management mode with descending tracking and ascending tracing and brings great convenience for consumers and enterprises.

System and method for diffusing gas bubbles into a pond, lagoon or basin that is used for fish farming or other form of aquaculture. A small amount of water is continuously removed from the bottom of the body of water by one or more counterflow gas lift diffusers. This small amount of water is flowed down underground, has gas bubbles introduced into it, and is then returned to the body of water. The quantity of water removed and treated in this way is a small fraction of the total body of water in the pond, lagoon or basin. The ratio of (1) the total volume of the channels below ground through which the water flows downward, and then back up into the body of water, to (2) the volume of the body of water above ground is at all times less than about 1:100. In the broadest form of the invention, a gas diffuser introduces gas bubbles into the water in the return channel at a level at least about 2 feet below the bottom of the body of water, and no more then about 50 feet below the surface of the body of water being treated. The downflow and return channels and the space joining them at their bottom ends extend no more than about 50 feet below the surface of the water being treated.

The invention discloses a denitrifying strain with nitrifying function, a strain-containing water body improver of multiple active microorganisms and a preparation method of the water body improver, belonging to the technical fields of aquaculture and water body improvement. The strain disclosed by the invention is conserved in the China center for type culture collection (CCTCC), the CCTCC NO isM2011443; and the water body improver of the active microorganisms which is based on the strain comprises multiple strains such as Bacillus subtilis, Bacillus licheniformis, Bacillus pumilus, Bacillus cereus, Bacillus megaterium, Rhodopeudomonas palustris, Arthrobacter globiformis, Rhodotorula rubra and Lactobacillus plantarum. The strain is used to perform liquid fermentation and obtain fermentation liquor of which number of live bacteria is 0.5-3*10<10>cfu / mL, bacterial powder of which the number of live bacteria is 0.2-2*10<12>cfu / mL is further prepared; and the bacterial powder is used along with a diluent to prepare a liquid or powdery water body improver, wherein the effective live bacteria of the water body improver is 0.1-3*10<10>cfu / mL(or cfu / g). The water body improver has the function of reducing the contents of ammonia nitrogen, nitrites and nitrates in the culture water body; and the water body improver is suitable for different culture water bodies and has the function of improving the water quality.

The invention relates to a method for producing a high-efficiency composite microbial agent by using livestock liquid dung, and belongs to the technical field of environmental microbiology and agricultural science. The method comprises the following steps: diluting livestock liquid dung or livestock feces with water; after hydrolysis and acidification treatment, performing standing and settlement for desilting; mixing a supernatant obtained with a photosynthetic bacterial solution for anaerobic culture; using the mixed solution as a base liquid and stepwise adding lactobacilli, saccharomyces, bacillus thuringienesis and actinomycete into the base liquid in a proportion; and after anaerobic culture and aerobic treatment, finally filling the mixture into a biological fluidized bed for further treatment to obtain the high-efficiency composite microbial agent. The microbial agent is rich in the photosynthetic bacteria, the lactobacilli, the saccharomyces, the actinomycete, the bacillus thuringienesis, azotobacter, nitrobacteria, denitrifying bacteria and other beneficial organisms, and be widely used in agriculture, livestock breeding, fresh water aquaculture, organic sewage treatment, microbial deodorization, and other aspects. The technology is suitable to be used by various livestock farms (raisers) for liquid dung treatment.

Disclosed is a process for growing the microflora Thraustochytrium, Schizochytrium, and mixtures thereof, which includes the growing of the microflora in fermentation medium containing non-chloride containing sodium salts, in particular sodium sulfate. In a preferred embodiment of the present invention, the process produces microflora having a cell aggregate size useful for the production of food products for use in aquaculture. Further disclosed is a food product which includes Thraustochytrium, Schizochytrium, and mixtures thereof, and a component selected from flaxseed, rapeseed, soybean and avocado meal. Such a food product includes a balance of long chain and short chain omega-3 highly unsaturated fatty acids. In an embodiment, lipids are produced by growing microorganisms of the order Thraustochytriales in a medium and extracting the lipids.

A method of aquaculture is applicable to a novel culture arrangement for diversified farming of generally deep sea fin fishes, shrimps, and shellfishes. A pre-manufactured enclosed cultivation tank is provided and air compressor facility is included for pressurization and oxygenation so as to make the interior of the cultivation tank a pressurized water environment of predetermined high pressure. A low pressure siphon tube is included for sucking and removing excrements from the cultivation tank and to realize water replacement in a natural manner thereby providing a deep sea mimicked clean cultivation environment. The drained water is subjected to multiple steps of filtration and purification for separating the excrements from the water and for purifying water to allow cyclic use of the water. An arrangement of multiple cultivation tanks allows for diversified and multi-species cultivation of fishery products and deep sea fishes.

Materials and methods are provided for growing algae while maintaining culture selectivity. Algae that can be grown include, for example, green algae such as those of the genus Scenedesmus. Lipid obtained from the algae can be used to produce biofuels such as biodiesel or polyunsaturated fatty acids such as omega-3 fatty acids. Feedstocks such as animal feed and aquaculture feed can also be produced as can phytonutrients such as asataxanthin and beta-carotene.

The invention provides a method for preparing a metal ion imprinting adsorbent with an underwater selective recognition performance. The method comprises the steps of: preparation of an amino functional material: dispersing a nuclear body material into a methanol solution, slowly adding 3-propylaminoethoxy silane, uniformly stirring, and then, continuously adding a cross-linking agent and a stabilizer to form the amino functional material; and preparation of the metal ion imprinting adsorbent: dispersing the amino functional material in the methanol solution, and exposing to ultrasound to obtain a solution A; dissolving isonicotinic acid and metal template ions in deionized water to form a solution B; dripping the solution B into the solution A, and reacting to obtain a white sol-like product; and eluting the metal template ions: performing Soxhlet extraction by using an acetic acid-methanol solution, then eluting the metal template ions by using a hydrochloric acid, and drying to obtain the metal ion imprinting adsorbent. The metal ion imprinting adsorbent disclosed by the invention can be widely applied to advanced treatment of drinking water as well as enrichment recovery or rapid analysis detection of metal ions in different water bodies, such as industrial waste water, aquaculture water and seawater.

The invention relates to a rice field-fishpond planting and breeding compound system, which belongs to the technical field of comprehensive utilization of agricultural ecological aquaculture. The compound system comprises a rice field, a fishpond, a simple ecological ditch and a strengthened ecological ditch, wherein the rice field is arranged at one end of the fishpond; the strengthened ecological ditch and a water collecting tank are respectively arranged on one side of each of the fishpond and the rice field; the simple ecological ditch is formed in the rice field; a small overflow port is formed in the simple ecological ditch; the rice field is communicated with the water collecting tank by a large overflow port; the fishpond is communicated with the simple ecological ditch by a water suction pump. According to the rice field-fishpond planting and breeding compound system disclosed by the invention, the rice field planting and the fishpond breeding are organically combined by the ecological ditches, so that the fishpond breeding water is refluxed to a new circulating water planting-breeding mode after being purified by the rice field and the ecological ditch. Moreover, the problems that an existing rice-orientated planting-breeding mode with the fish breeding has rice-fish contradictions including field drying, fertilizer applying, pest controlling and the like in the production process, and is limited in yield and inconvenient for large-area popularization are solved.

The invention provides an aquaculture dissolved oxygen concentration online forecasting method and an aquaculture dissolved oxygen concentration online forecasting system. The method comprises the following steps of: acquiring water quality index and related meteorological factor data in a scheduled time period to establish an original data set; performing data standardized pre-processing on the original data set by using a normalization method to acquire a training sample data set of a least square support vector regression (LSSVR) machine model; training the LSSVR machine model by using the training sample data set, and optimizing the parameters of the LSSVR machine model to acquire an optimal LSSVR machine model; and acquiring water quality index and related meteorological factor data of an aquaculture ecological environment on line in real time, and inputting the acquired water quality index and related meteorological factor data to the optimal LSSVR machine model to acquire a dissolved oxygen concentration forecasting value. By using the method and the system, accurate and efficient forecasting of the aquaculture dissolved oxygen concentration is realized.

A controlled eutrophication system and process are disclosed. The system includes the combination of a partitioned aquaculture system in conjunction with an anaerobic digester. Wastewater containing pollutants, such as nitrogen and phosphorus, are fed to the partitioned aquaculture system. Algae within the system converts the pollutants into algal biomass. Fish populations, in turn, control the algal populations. The fish populations may then be periodically harvested for human or animal consumption. A polishing chamber is contained in the system in which aquatic organisms remove substantial amounts of the algae from batch fed additions of water. The water is then discharged to an external water source containing virtually no pollutants. In one embodiment, the biomass excreted by the aquatic organisms in the system are collected and fed to a digester. In the digester, the biomass is converted to a hydrocarbon gas and collected for its fuel value, while the liquid fraction is collected for its fertilizer value.

The invention discloses an intelligent feeding device for aquaculture. The intelligent feeding device for the aquaculture comprises a material loading device, a material storing device, a conveying device and a material scattering device, wherein the conveying device is connected with the lower end of the material storing device, and the material scattering device is mutually connected with the conveying device. The intelligent feeding device for the aquaculture has the advantages that fodder is saved, pollution to environment is reduced, labor force is saved, the automation degree is high, waste of the fodder is relatively less, the fodder can be weighed, feeding amount of the fodder is reasonable, assimilation and absorption of the fodder are greatly improved, the fodder is directly transported by an automobile and poured into a feeding port, and woven bags are not needed. When drug needs to be sprayed, liquid drug is directly mixed with the fodder and is directly conveyed to a feeding machine in the middle of a fish pond for feeding through a pipeline after being stirred evenly.

The invention provides a remote automatic monitoring system for aquaculture and a monitoring method thereof. The system is implemented by combining the conventional electronic products such as a water quality parameter sensor, an environmental parameter sensor, an aquaculture execution device and the like and a communication network; centralized setting and monitoring management are performed by adopting a monitoring device; a controller independently analyzes the monitoring data of the sensors according to the setting and controls the operating process of an executor according to the analysis result so as to improve the production management efficiency of the aquaculture and adapt the requirement of modern integrated management; the working personnel can monitor the actual condition of an aquaculture unit without going to the aquaculture site, and the system automatically gives an alarm in emergency, so the system is favorable for improving the management efficiency, saving the management cost and reducing the risk of the aquaculture; and the management of the aquaculture unit can be quantitatively set through the monitoring device so that the management is more digitalized and standardized, the system is favorable for unifying the management standards, and technical guarantee is provided for large-scale development of the aquaculture.