622 results about "Aquaculture industry" patented technology

A nutritive mixed feed without environmental pollution for culturing aquatic animals is prepared from microecological preparation, Chinese-medicinal preparation, enzyme preparation, micropeptide preparation, and the adsorbent of waste N and P. It has high effect to clean water, provide nutrients and prevent and treat diseases.

The present invention belongs to the field of aquatic cultivation technology, and is one purified system for high density green cultivation of sea water and fresh water fish in a complexly closed circulation facility. The lone purified water system consists of cultivation pond, deposition pond, aerating pond and biologically purifying pond to constitute one complete circulation system. Each of the cultivation pond, deposition pond and biologically purifying pond is provided with blowdown pipeline to exhaust deposited solid dirt. The present invention has raised fish survival rate and growth speed.

The invention discloses a system for increasing the water quality of an aquaculture system. The system comprises an aquiculture pond, a settling pond, an algae purifying pond, a biological membrane treating pond, an ultraviolet disinfection pond, an adsorption pond, a fertilizer adding pond and a backflow pond, wherein all of the ponds are connected through water flow pipelines, a circulating water pump is arranged between the aquiculture pond and the settling pond, and the water level is increased through the circulating water pump, so as to lead water from the aquiculture pond into the settling pond. According to the system for increasing the water quality of the aquaculture system, the water quality environment can be improved, the deterioration of the water quality caused by waste water, domestic sewage, residual baits and the like can be reduced, and the long-term sustainable development of the aquaculture industry is facilitated.

The invention discloses a method for purifying mariculture wastewater by utilizing a compound microbial inoculant. The method comprises the following steps: (1) screening the compound microbial inoculant which consists of photosynthetic bacteria, nitrobacteria, denitrifying bacteria, candida utilis, lactobacillus acidophilus and bacillus; (2) activating the compound microbial inoculant by utilizing a culture medium: directly adding the strain into the culture medium based on 1% of inoculation amount (w/v), and activating the strain by a shaker at the temperature of 37 DEG C with the speed of 150rpm (revolution per minute) for 24 hours so that the total content of microbes is 7*10<8>-9*10<8>CFUs (colony forming units)/mL; and (3) adding the activated compound inoculant into the treated aquaculture wastewater, wherein the compound inoculant accounts for 0.06%-0.12% of the total weight of the aquaculture wastewater. The method has the advantages of no toxicity and harm on aquaculture animals, simple process, fast organic matter degradation speed, obvious effect, no drug residues and no secondary pollution. Therefore, the method has economic feasibility and is applicable to popularization and application to coastal aquaculture industry.

The invention relates to preparation and application of a sterilization composition containing various effective sterilization components. The sterilization composition contains a guanidine compound, a quarternary ammonium compound, 2-bromine-2-nitro-1,3-propanediol and ethanol, is diluted within a range of 50-1000 times, has the average killing rate of 99.99-99.9999 percent to gonites, bacterialspores, mycobacteria, viruses, fungi and spores thereof, can be used for the public health field, the food processing industry, the medical and health field, the livestock and poultry industry, the aquaculture industry and sterilization treatment on indoor air and in-vehicle air and can also be used for the port field, in particular to ship ballast water treatment, container treatment, industrialcirculating water treatment, swimming pool water treatment, hand and skin mucosa treatment, industrial wastewater treatment, hospital wastewater treatment and antiseptic treatment of a building material.

The invention discloses a complete-covering automatic and even feeding track planning method for an aquaculture pond. The method includes the following steps that 1, the coordinate system of a pond area is built; 2, an automatic feeding working area is determined; 3, the shape regularity condition of the automatic feeding working area is judged; for the pond in the regular shape, an inner-screw-traversal-mode pond complete-covering automatic feeding track planning method is adopted; for the pond in the irregular shape, a comb-reciprocating-traversal-mode pond complete-covering automatic feeding track planning method is adopted; coordinates of characteristic points are automatically calculated, and the pond complete-covering automatic feeding track is generated. The track planning method for river-crab-breeding whole-pond automatic and even feeding and pond-following or whole-pond automatic and even feeding in other kinds of aquaculture is provided, the even feeding path and track method can be directly calculated through the vertex coordinates of the pond, accurate and even feeding is achieved, working efficiency is improved, production cost is reduced, and the healthy development of the aquaculture industry is promoted.

A method for culturing the larvae of triverrucous portunid in outdoor pond includes such steps as providing male parent portunid and female parent portunid, indoor culture at 12-18 deg.C by feeding living clam worm, oxytocia, incubation, and culturing larvae in an artificial ocean environment by feeding living bait and building hidden caves for preventing the mutual damage between larvae.

The invention relates to a feed additive of aquaculture industry, in particular to a meat quality flavor modifying agent for grass carp or carp and a preparation method thereof. Each kilogram of modifying agent comprises the following components: 30 to 50g of seaweed extract, 10 to 20g of combination of inosinic acid and guanylic acid, 20 to 30g of carnitine, 15 to 30g of glycin, 10 to 20g of alanine and the balance of zeolite powder. The preparation method comprises the following steps: firstly, crushing solid materials in the seaweed extract, the combination of inosinic acid and guanylic acid, the carnitine, the glycin, the alanine and the zeolite powder materials and sieving the crushed solid materials through a sieve with 80 to 100 meshes for later use; and secondly, mixing and stirring the crushed solid materials in the proportion to ensure that the coefficient of variation CV of the uniformity is less than 5 percent to obtain the product. The modifying agent can effectively improve protein content, content of total amino acids, content of essential amino acids and content of delicious amino acid in muscles of the grass carp and the carp.

The invention relates to a strain of bacillus cereus SC2 with the collection number of CGMCC No.3836. The strain of the bacillus cereus SC2 has an obvious water purifying function, three days after sewage is treated by the bacillus cereus SC2 strain, the removal rates of the ammonia nitrogen, nitrite nitrogen and chemical oxygen demand (COD) in the sewage are 70.15%, 94.12% and 43.12% respectively, the pH value in the sewage is stabilized, the dissolved oxygen in the sewage is increased, and the immunity and disease resistance of aquatic animals are enhanced, so that the healthy development of the aquaculture industry is promoted.

The invention relates to a portable on-line three-dimensional coordinate water quality detection system for turbid water areas. The system comprises an electric ship (1), a device platform (2) and an on-line water body water quality detection device and is characterized in that the on-line water body water quality detection device comprises a water quality detection sensor (6), a foldable device (5), a combined cable, a data storage device (19), a wireless signal transmission device and an integrated and visualized system of a ground control interface, wherein the water quality detection sensor (6) is connected with the lower end of a lifting traction device by the foldable device (5); the input end of the water quality detection sensor (6) is connected with an embedded control system (9) via a cable in the combined cable; the embedded control system (9) is connected with a direct-current power supply (18); and the output end of the water quality detection sensor (6) is respectively connected with the data storage device (19) and a wireless signal transmission device by other cables in the combined cable. By the adoption of the portable on-line three-dimensional coordinate water quality detection system, the complete intellectualization of system control and three-dimensional water quality detection can be realized, and the portable on-line three-dimensional coordinate water quality detection system can be widely applied to fields, such as centers for disease control, aquaculture industry, the environment monitoring of rivers, lakes, ocean water bodies and the like.

The invention discloses a rice-fish symbiosis-aquaculture coupled complex planting and breeding system and a breeding method. The system is a new type separated rice-fish culture rice field-pond complex system, a plurality of functional units are communicated with each other by the aid of a novel water circulation technology, and a latticed long or square pond complex ecosystem is built. The method includes the steps: arranging water circulation system pipelines and performing water circulation by the aid of ditches or high-position ponds; setting up the complex planting and breeding system, building a rice field breeding system and an aquaculture system and mutually communicating the systems through water circulation of drainage pipelines or the ditches; performing accurate breeding and perfectly combining and complementing planting and breeding; performing biological integrated control and rice pest control by the aid of a rice-fish culture mode and spider group protection. The problems of over-fertilization, emission pollution, aquaculture industry sewage discharge and water source shortage are solved.

The invention provides a river crab used immunopotentiator and preparation method, wherein the immunopotentiator is prepared from vitamin C, E, carotene-beta, bread yeast cell wall containing 30% beta-glucan, mannose, algin, licorice root, phosphatide and rice bran through solid raw material disintegrating, sieving, solid raw material mixing, phosphatide miscible liquid preparation, phosphatide miscible liquid spraying and drying.

The invention belongs to the technical field of special aquaculture, and particularly relates to a special taming feed for mandarin fish, and a mating taming method. The special taming feed for mandarin fish is prepared by mixing the following raw materials in parts by weight: 70 parts of White fish powder, 10 parts of shrimp meal, 5 parts of chicken intestine, 2 parts of a compound feed attractant, 5 parts of cod-liver oil, 1 parts of decavitamin, 2 parts of compound mineral substances and 5 parts of an adhesive, wherein the compound feed attractant is cuttlefish cream and inosinic acid. The invention further provides a progressive mandarin fish taming method. The mandarin fish can be entirely fed with the special feed through taming, the culturing cost and morbidity of mandarin fish can be reduced, and the sustainable development of the mandarin fish aquaculture industry can be realized.

The invention discloses a feed for juvenile prawns. The feed comprises one or more selected from the following components: fish meal, wheat bran, bean cake, vinasse, yeast, a composite vitamin premix, a traditional Chinese medicinal composite additive, a mineral matter premix and a feed adhesive. Weight parts of the above mentioned components are as follows: 10 to 40 parts of fish meal, 10 to 20 parts of wheat bran, 10 to 15 parts of bean cake, 1 to 2 parts of vinasse, 1 to 2 parts of yeast, 1 to 2 parts of the composite vitamin premix, 1 to 2 parts of the traditional Chinese medicinal composite additive, 1 to 2 parts of the mineral matter premix and 10 to 15 parts of the feed adhesive. According to the invention, Chinese herbal medicines are applied to prevent and treat fish and prawn diseases, which is in accordance with disease controlling criteria for development of nuisanceless aquaculture and production of green aquatic products, especially in accordance with demands for intensive and large-scale production in the current aquaculture industry; the Chinese herbal medicines compose a compound preparation in proportion, which enables synergistic effects of the medicines to be better performed; a steaming process is utilized to allow starch in the feed adhesive to agglutinate at different temperatures, so the degree of expansion is increased, the degree of gelatinization of the starch is substantially improved, the effects of a chemical adhesive in feed processing can be totally replaced, and sinking performance and binding performance of the feed are enhanced, which is beneficial for growth and culture of juvenile prawns.

An energy-saving and wind-powered aerator includes a floating carrier (1), a wind turbine (2), a water stirrer (3), and a transmission element (4). The floating carrier (1) has a supporting structure (12). The wind turbine (2) is connected to an upper portion of the supporting structure (12). The water stirrer (3) is mounted to the floating carrier (1). The transmission element (4) is connected to the wind turbine (2) and the water stirrer (3). The water stirrer (3) is rotated by means of the rotation of the wind turbine (2) and a driving action of the transmission element (4). With this arrangement, the wind turbine (2) is blown by natural and inexhaustible wind to rotate, so that the water stirrer (3) can be driven by the transmission element (4) to beat water rapidly, thereby increasing the amount of oxygen dissolved in the water and facilitating the decomposition of organic compounds in the water. In this way, the water quality can be improved and the amount of electricity consumed in aquaculture industries can be reduced to increase the profit.

The invention discloses a high-yield natural astaxanthin fermentation method, which comprises the steps as follows: activating phaffia rhodozyma CGMCC6355 bacterial strains and preparing a seed liquid; inoculating the seed liquid to a fermentation culture medium to perform fermentation culture, and extracting astaxanthin after the end of the fermentation culture, wherein before the fermentation culture, adding an oxygen vector with a volume ratio of 0.5-6 percent to the fermentation culture medium; during the fermentation culture, adding a sugar source to enable the concentration of reducing sugar in a fermentation liquid to reach 2-3 percent when the concentration of the reducing sugar in the fermentation liquid is consumed to below 2 percent, and adding an astaxanthin precursor substance to the fermentation liquid every other 8-24 hours. The astaxanthin produced by adopting the method can be applied to high-grade feed additives for the aquaculture industry and the like, and has the effects on improving the egg laying rate of aquatic animals, boosting the growth, and resisting and preventing diseases. The high-yield natural astaxanthin fermentation method is low in cost, high in the utilization ratio of raw materials, simple to operate, and easy to achieve large-scale industrial production.

The invention belongs to water treatment technology of aquaculture, in particular to a comprehensive treatment technology of prawns raising seedling water, comprising following steps: a first level filtering-a depositing reservoir-a secondary sand filtering-water body disinfection-throwing in larva. The comprehensive treatment technology of prawns raising seedling water adopts synthetic system for processing water which combines physical, chemical, medication and different kinds of control measures, can efficiently balance the acid-base value of water body, clear away or reduce the poisonous material in water body such as ammonia nitrogen and nitrite, remain chlorine (free chlorine), can extinguish germ and fungus in water, extinguish and clear away various harmful biology in water body, optimize water quality fully, furthest decrease foot phenomenon of seedlings, raise emergence rate, raise output and optimize quality.

The disinfectant is one kind of complex containing quaternary ammonium salt cationic surfactant and iodine. It is produced through mixing the quaternary ammonium salt compound and iodine and reacting for 1-2 hr. It is used mainly for disinfection in animal raising and aquiculture, and has high sterilizing and algae-killing efficiency and high safety.

The invention relates to an aerator for use in an aquaculture industry, which comprises a motor, a speed reducer, a first output shaft, a second output shaft, water wheels, an impeller, a machine frame and a floating body, wherein the water wheels are installed at two ends of the first output shaft; the impeller is installed at an end part of the second output shaft; and the motor drives the first output shaft and the second output shaft to rotate towards different directions at the same time through the speed reducer so as to drive the water wheels and the impeller to rotate. The aerator has the advantage of reasonable structure and design; one speed reducer can drive the water wheels and the impeller to rotate at the same time, so that the depth aeration of a large-area water body is realized, and the aeration capacity and the aeration speed are greatly improved; moreover, the cultivation investment cost of aquatic breeding farmers is saved, and energy sources are saved.

The invention discloses a breeding method for a planting and breeding circulation efficient ecological environment-friendly fishery. The method comprises the steps of aquaculture, pond clearing, fry placing, water quality adjusting and controlling, disease control, feeding, forage grass irrigation and the like. Mutual intersection and circulation of planting industry and aquaculture industry are utilized, products and waste in one industry are used as energy sources of the other industry, maximum utilization and circulation of matter and energy in circulation bodies are achieved, expenditure reduction, high efficiency, cleaning, environmental protection, production increasing and efficiency increasing are achieved in a circulation industry chain, zero pollution emission of the whole circulation system is achieved, and a new mode for the planting and breeding circulation efficient ecological environment-friendly fishery is formed, so that fishery ecological environment is improved, the environmental protection contribution rate of the fishery to urban construction is improved, a good ecological breeding mode is provided for Tianjin urban fisheries, and fishery sustainable development is ensured.

The invention discloses fermented fiber feed for pigs and a preparation method thereof. The fermented fiber feed for the pigs takes bran and the like as raw materials, and yeasts, bacillus subtilis, bacillus licheniformis, lactobacillus plantarum, lactobacillus reuteri, and other probiotics are selected for compatibility as fermentation bacteria, and a multi-strain mixed fermentation process is adopted. Catabolism of microorganisms can reduce toxin content in fiber materials, increase protein content in fiber materials, and increase nutritional value of fiber materials. Secondly, various kindsof probiotics for compatibility are selected as fermentation bacteria. After solid-state fermentation of bran and other raw materials, the biological feed contains a large number of probiotics capable of improving intestinal health of animals, and the biological feed can improve micro-ecological environment of a gastrointestinal tract after animals are fed. Body's immunity is improved. In addition, the biological feed is rich in lactic acid and very mellow, palatability of the feed can be significantly improved, animal feed intake is increased, rapid growth of animals is promoted, and production capacity of an aquaculture industry is increased.

The invention relates to the technical field of forest plating, and particularly relates to a method for planting a mangrove forest in a high-salinity deepwater sea beach. The method comprises the following steps: (1) preparing land; (2) planting; and (3) maintaining and managing the forest. Because no natural distribution of the mangrove forest exists in the deepwater sea beach, the mangrove forest cannot be successfully planted by adopting a conventional method; the mangrove forest can be planted in the high-salinity deepwater sea beach by adopting the method disclosed by the invention, the distribution area of mangrove forest wetland resource in a coastal region of South China is enlarged, the ecological function of protecting the coast by the mangrove forest is given a full play; water channels coexists in a mangrove forest restoration area, and thus a diversified environment is created so that a diversified living space can be provided for wildlife; meanwhile, in a mangrove planting area of the deepwater sea beach, by using the water channels in the mangrove forest, a natural ecological cultivating system in which the mangrove forest and the fishery industry coexist can be established, and the sustainable healthy development of the aquaculture industry in a coastal community is effectively promoted.

The invention discloses a breeding method of hybrid mandarin fishes. The breeding method comprises the following steps of a, parent selection, b, artificial spawning and insemination, c, hatch management, d, fry rearing, and e, fry taming feed. According to the method, siniperca scherzeri and siniperca chuatsi which are bred through multiple generations are used as hybrid parents, the hybrid mode of siniperca scherzeri (o+)*siniperca chuatsi (o) is adopted, and new-type mandarin fishes are generated. The hybrid mandarin fishes of the new type are developed for the high-range fresh water aquaculture industry, are superior to siniperca chuatsi in meat taste and disease resistance, higher than siniperca scherzeri in growth speed, capable of eating non-live fishes, good in economic trait, and convenient to culture in large scale through manpower.