163results about How to "Improve the quality of farming" patented technology

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 discloses an ecological breeding method for grass carp, wherein the ecological breeding method for the grass carp comprises the following steps: (1) building a fish pond; (2) sterilizing the fish pond; (3) stocking the fingerling; (4) feeding and managing; (5) preventing and treating the diseases and insect pests; (6) catching; the ecological breeding method for the grass carp has beneficial effects as follows: the breeding method can raise the breeding quality and yield for the grass carp, the meat flavor of the grass carp bred by the method is delicious, the taste is good, the scientific breeding management can be realized, the diseases and insect pests can be prevented and treated while the fish has health care function, the diseases and insect pests can be thoroughly prevented and treated, the disease control rate is 100%, the method is ecological and environment-friendly, the production cost is low, the economic benefit is high, the large-scale production can be realized; the natural forage grass and granule crushed from the feed are adopted during the breeding process of the grass carp, the commercial compound feed is not used, the chemical synthetic drug and the antibiotic drugs are not used, so the production cost is reduced, the quality of the grass carp is good and the yield is high.

The invention provides an ecological cycling freshwater aquaculture method. The method comprises: preparing a culture water source, supplying water to culture ponds, filtering water, and treating sewage. The plurality of culture ponds are arranged from left to right in sequence to form a culture pond group. The culture ponds in the culture pond group are connected in parallel, and form a recirculating aquaculture system with a filter tank, a treating pond, a settling pond, a biological package, an aeration tank, and a sterilization pond. Using the ecological cycling freshwater aquaculture method, water of the whole system forms virtuous cycle, and is suitable for growth of freshwater fishes and shrimps, and zero discharge of aquaculture wastewater is realized, and water resource is saved. The ecological cycling freshwater aquaculture method has obvious ecological environment benefits, and meets the sustainable development strategy of the country.

The invention relates to a freshwater fish breeding technology, in particular to an ecological grass carp breeding method.The method includes the following steps of appropriate pond selection, pond cleaning and arranging, fry stocking, water quality management, breeding management, disease and pest prevention and fishing.By means of the method, the breeding quality and yield of grass carps can be improved, grass carps bred through the method are fresh in meat taste and good in taste, scientific breeding management can be achieved, health care is achieved, disease and pest prevention is achieved at the same time, disease and pest prevention is thorough, the disease control rate reaches 100%, and the method is ecological, environmentally friendly, low in production cost, high in economic benefit and suitable for large-scale production.In the grass carp breeding process, through the green grass and biological fermentation feed mixed putting mode, the quality of grass carps is remarkably improved, the technology is simple, the investment cost is low, risks are small, operability is high, and the method is easy to grasp and apply and easy to popularize and promote.

The invention discloses a method for breeding crucian in a pond. The method comprises the steps of preprocessing of the pond, preparation before stocking, feed putting and feeding, health breeding management, moderate fishing and the like. The method for breeding crucian in the pond is convenient and easy to implement, low in breeding cost and high in output benefit. Through reasonable stocking of bighead carp, water is purified, the breeding quality of crucian is improved, and breeding benefits are increased.

The invention discloses a method for freshwater culture of penaeus vannamei by using a bio-flocculation technology. According to the method, lactic acid bacteria and bacillus subtilis organisms are utilized, through aeration, bio-flocculation is quickly cultured and generated, the purification effect on water quality can be achieved through the assimilation of heterotrophic bacteria in the cultureprocess of penaeus vannamei, and meanwhile crude proteins, crude fat and other nutrients required by penaeus vannamei are increased; the utilization rate of feed can be increased, and the feeding amount is reduced; in addition, by gradually reducing the salinity of a water body, the culture environment can be adjusted slowly to avoid negative effects caused by salinity change fluctuation on culture organisms in the environment, the culture quality and yield are improved, and the adaptability of penaeus vannamei to the environment is improved.

The invention discloses an aquaculture industry water environment intelligent monitoring system based on big data. The aquaculture industry water environment intelligent monitoring system comprises awater area division module, a sampling acquisition module, a water quality parameter detection module, a parameter preprocessing module, a manual input module, a parameter storage database, a water quality parameter analysis module, a management server, an oxygenation adjustment terminal and a display terminal. Aquaculture water body regions are divided, sampled and subjected to water quality detection through the water body region division module, the sampling acquisition module and the water quality parameter detection module, so that the accuracy of water quality detection is improved; thewater quality parameter analysis module is combined to analyze the detected water quality parameters; according to the method, quantitative display of the water quality of the aquaculture water body is achieved, managers can visually know the influence effect of the water quality on fish aquaculture, the appropriate aquaculture density is determined according to the water quality aquaculture suitability coefficient, an appropriate growth environment is provided for fish aquaculture, and the aquaculture quality of fishes is improved.

The invention relates to a micro-organism preparation for preventing and curing streptococcicosis of Tilapia mossambica as well as a preparation method and an application thereof. The micro-organism preparation method for preventing and curing streptococcicosis of Tilapia mossambica comprises steps of compounding mixed vaccine with red Nocardia ATCC11653 and coral Nocardia ACCC40100, fermenting and cultivating the mixed vaccine with fermentation medium which is compounded of nitrogen source, carbon source and inorganic salt, and processing resultants into solid powder after the fermentation and cultivation. The micro-organism preparation for preventing and curing streptococcicosis of Tilapia mossambica, which provided by the invention, can reduce the content of ammonia nitrogen and nitrate nitrogen in the Tilapia mossambica breeding water body, antagonize the streptococcicosis of the Tilapia mossambica, reduce the accumulation of harmful substances of the middle and later breeding periods, enhance the immunity of the Tilapia mossambica,, achieve the aim of preventing and curing streptococcicosis of Tilapia mossambica, reduce the economic loss caused by diseases, and ensure the breeding output and quality of the Tilapia mossambica. The micro-organism preparation provided by the invention has advantages of convenience in use, small amount of usage and stable effect after use.

The invention discloses a water quality modifier for shrimp and crab aquaculture and a preparation method of the water quality modifier. The water quality modifier is prepared from the following raw materials in parts by weight: 20 to 30 parts of modified bentonite, 10 to 15 parts of amino acid, 2 to 10 parts of chitosan, 0.5 to 1.5 parts of bacillus, 2.5 to 5.5 parts of nitrobacteria, 1.2 to 2.4 parts of acetylcholin esterase, 3 to 10 parts of nano clay, 2 to 15 parts of corn meal, 2 to 10 parts of active carbon particles, 2 to 5 parts of honey, 2.5 to 6.5 parts of a trace element mixture and 5 to 10 parts of a Chinese herbal medicine extract. According to the water quality modifier for the shrimp and crab aquaculture and the preparation method of the water quality modifier, water balance adjustment for aquaculture can be realized, and aging of the water quality of aquaculture water can be prevented.

The invention belongs to the technical field of aquatic-product microecological preparations, and concretely relates to a n new bacillus subtilis strain, a microecological preparation and application. The disclosed bacillus subtilis H8-1 possesses the preservation number of CGMCC No. 9356, is capable of reducing harmful substances such as ammonia nitrogen and nitrite-state nitrogen in water in a pollution-free residue-free way, improving culture quality and improving culture economic benefit, and possesses promotion value. The degradation rates of bacillus subtilis H8-1 on ammonia nitrogen and nitrite-state nitrogen both with the concentration of 2.5 mg / L are respectively 81.72% and 99.70%.

The invention discloses feed capable of improving immunity of geese. The feed comprises, by weight parts, 80-120 parts of corn, 30-60 parts of bean pulp, 20-40 parts of vinegar residue, 10-30 parts of cottonseed meal, 5-15 parts of beet pulp, 2-6 parts of bagasse, 1-5 parts of sweet potato vine, 3-9 parts of corn oil, 2-8 parts of dicalcium phosphate, 1-5 parts of rock flour, 2-4 parts of methionine, 2-6 parts of salt, 3-8 parts of traditional Chinese medicine fermentation extract, 1-9 parts of seaweed meal and 2-8 parts of antimicrobial peptide. The feed is rich in starch, protein, amino acid, minerals and trace elements. By auxiliary adding of the traditional Chinese medicine fermentation extract, the goose immunity is improved, and breeding efficiency and quality are improved effectively.

The invention relates to an automatic feeding system and method for indoor industrial aquaculture. The system comprises a culture area (1) and is characterized by further comprising a feed supplementing system (4) and a control system, a feeder track (2) is arranged above the culture area (1), a feeder (3) is arranged on the feeder track (2) and can move along the feeder track (2) to provide feed for a culture pool (11) in the culture area (1), the feed supplementing system (4) is responsible for supplementing feed to the feeder (3), and the control system controls running of the feeder (3) and running and feed supplementing operation of the feed supplementing system (4). According to the automatic feeding system and method, feeding can be automatically and reasonably carried out according to the variety and growth period of the cultured fish, feeding rules, the total feeding amount and the feeding time interval, the problem that the labor intensity is large in the feeding process in the industrial aquaculture is solved, and adverse influences of the unscientific feeding amount and interval on growth of the cultured fish and quality of culture water are relieved.

The invention provides a symbiotic culturing system of mesona chinensis, crayfish and rice. The symbiotic culturing system includes a rice culturing area, a circular furrow area and an outer ridge area; the rice culturing area comprises a field of a quasi-rectangular or S-shaped design and is used for planting the rice; the circular furrow area includes a circular furrow formed around the rice culturing area and is used for breeding the crayfish; the outer ridge area includes an outer ridge arranged around the circular furrow area and is used for culturing mesona chinensis; a water inlet pipeline is arranged at the portion, close to the top, of one end of the circular furrow, and a water outlet pipeline is arranged at the portion, close to the bottom, of the other end of the circular furrow; an escape-proof net is arranged at the inner side of the outer ridge area; a water supplement pipeline is also arranged in the circular furrow area and protrudes out of the bottom of the circular furrow, and the water supplement pipeline is used for conducting water supplementing on culture water inside the circular furrow. According to the symbiotic culturing system of mesona chinensis, the crayfish and the rice, by using the rice culturing area for culturing the rice, using the circular furrow area for breeding the crayfish and using the outer ridge area for culturing mesona chinensis, circulation culture of mesona chinensis, the crayfish and the rice is achieved, and the breeding quality of the crayfish is improved.

The invention discloses a freshwater shrimp blocking-net-type intercropping method and belongs to the technical field of freshwater aquaculture. A blocking-net-type freshwater shrimp and trionyx sinensis intercropping mode is adopted, and aspects like culture pond building, fry stocking, culture management and feed quality are comprehensively improved; freshwater shrimp and trionyx sinensis are separated by using a blocking net for respective culture, and freshwater shrimp small in body size can enter a deep water area to serve as living food for trionyx sinensis, so that feed consumption of trionyx sinensis can be lowered, and culture cost of trionyx sinensis is lowered while culture quality of the same can be improved; culture density of freshwater shrimp can be controlled effectively, cannibalism is reduced, and improving of culture quality and yield is facilitated. Ecological niche characteristics of different organisms like alga, water plants, grey chub, freshwater shrimp and trionyx sinensis are taken into consideration comprehensively, a proper intercropping proportion is set, ecological balance of a culture pond is maintained, and water quality is adjusted, so that the method is an environment-friendly and high-efficiency culture mode and suitable for large-scale popularization and application.

The invention discloses high-protein feed for promoting the growth of tachysurus fulvidraco fry. The feed is prepared from, by weight, 15-25 parts of corn gluten meal, 6-14 parts of dried-powder of housefly larvae, 3-6 parts of high gluten flour, 2-5 parts of earthworm powder, 4-8 parts of flour weevil powder, 1-3 parts of fish meal, 2-5 parts of bean pulp, 1-4 parts of wheat bran, 3-5 parts of rapeseed meal, 3-6 parts of hericium erinaceus powder, 1-4 parts of chicken intestine powder, 2-5 parts of fish oil, 4-8 parts of bean oil, 1-5 parts of agaric powder, 2-4 parts of shell powder, 1-3 parts of shrimp meal, 3-6 parts of monocalcium phosphate, 1-4 parts of L-ascorbic acid phosphate, 2-5 parts of HJ-1 aquatic adhesive, 1-4 parts of glycine betaine, 2-6 parts of vitamin premix, 3-8 parts of mineral premix, 1-4 parts of choline chloride and 2-6 parts of hydroxymethyl cellulose. The tachysurus fulvidraco fry feed contains rich protein and can promote the growth of tachysurus fulvidraco fry and improve the breeding efficiency and meat quality of tachysurus fulvidraco fry.

The invention discloses an environment-friendly assembled large-scale pig farm and a construction method thereof. The pig farm includes a main body structure provided with multiple feeding rooms and breeding equipment; the main body structure is sequentially provided with a roof truss, a culture area and a manure collection area from top to bottom, and the outer side of the main body structure isprovided with an enclosure; the roof truss is arranged on the top of the main body structure, and the top of the roof truss is provided with a photovoltaic power generation module; the breeding area comprises an aisle and the feeding rooms arranged on the two sides of the aisle; the feeding rooms consist of partition fences and enclosure partitions, an automatic feeding module is arranged at the front part, close to the aisle, of each partition fence, and a manure leakage floor is arranged at the rear part of each feeding room; the manure collection area comprises a manure cleaning ditch formed below each manure leakage floor, and the tail end of each manure cleaning ditch is connected with a manure collecting tank. The pig farm has the advantages of being low in construction cost, short in cycle, high in replicability, environmentally friendly and capable of saving energy. Intelligentized management of internet of things of the farm is achieved, and the pig farm also has the advantages of simple management, high automation degree and breeding efficiency and the like.

The invention discloses an energy-saving air interchanger device for an on-scale breeding heat-preservation livestock building. The device is characterized by consisting of an air outlet 2, a draft fan 3, a fresh air inlet 4, hot air exchange heat radiation tubes 5, a fresh air pipeline 6, an air inlet device 7, an air inlet 8, an exhaust tube 9 and heat radiation fins 10, wherein the air outlet 2is positioned in an outer wall at one end of heat-preservation livestock building 1; one end of the draft fan 3 is connected with the air outlet 2; the other end of the draft fan 3 is connected witha plurality of hot air exchange heat radiation tubes 5; the plurality of the hot air exchange heat radiation tubes 5 are inserted into the fresh air pipeline 6 from the fresh air inlet 4 and uniformlydistributed; spiral heat radiation fins 10 are arranged on the outer sides of the plurality of the hot air exchange heat radiation tubes 5; the other ends of the plurality of the hot air exchange heat radiation tubes 5 with the plurality of the heat radiation fins 10 are connected with the exhaust tube 9; one end of the fresh air pipeline 6 is connected with the fresh air inlet 4; the other end of the fresh air pipeline 6 is connected with the air inlet device 7; the air inlet device 7 is connected with the air inlet 8; the fresh air pipeline 6 is U-shaped and is deeply buried below an tundralayer of the ground.

The invention discloses a method for cultivating pinctada martensi. In the method, the pinctada martensi and chlamys nobilis are cultivated in proportion in the cultivation process. By utilizing the method for cultivating the pinctada martensi disclosed by the invention, the growth rate and survival rate of the pinctada martensi can be obviously improved, biomass liveweight adhered to the pinctada martensi is lowered, the cultivation time of the pinctada martensi is shortened and the economic benefits of products can be enhanced; and the method is suitable for popularization and application in aquaculture.

The invention discloses an aquaculture system of internet of things. The aquaculture system comprises a monitoring host and a plurality of sensor groups; the monitoring host is installed in a monitoring room; the plurality of sensor groups are distributed in different aquaculture ponds; the plurality of sensor groups are all connected to the monitoring host; the monitoring host is equipped with adisplay screen; one side of the monitoring host is equipped with an alarm loudspeaker; a controller is arranged in the monitoring host; and the controller is equipped with an embedded micro-processor,a signal collector, a memory, an alarm, a GPS positioning module, a display module and a wireless transmission module. The aquaculture system provided by the invention has the advantages of simple structure and high intelligent degree, and can be used to monitor the water body situation in a plurality of aquaculture ponds in real time, so that the monitoring efficiency is high, and the culture quality is improved.

The invention discloses a feed additive product with high efficiency. The feed additive product comprises the following constituents by weight: 10% to 15% of fructo-oligosaccharide, 10% to 20% of soybean peptide, 15% to 30% of freeze-dried bacillus subtilis powder, 20% to 40% of ganoderma solid fermentation culture, 10% to 15% of active dry yeast and 10% to 20% of freeze-dried lactobacillus rhamnosus powder, wherein the bacillus subtilis is CGMCC6012. With the adoption of the feed additive product with high efficiency provided by the invention, the application amount of the antibiotic drugs in the domesticate animals can be effectively reduced, the safety of the animal meat products is improved, the feed use efficiency of the animals and the feeding profit are improved, and the immunity of the animals is strengthened.

The invention relates to the technical field of aquaculture water quality manipulation and water environment governance, and particularly relates to a special culture medium for oocystis and a preparation method of oocystis purebred liquid. The preparation method comprises: inoculating purebred oocystis separated from a high-yield shrimp culture pond into the special culture medium; continuously carrying out aerated culture purification under the conditions of a temperature of 23 to 28 DEG C and illumination intensity of 1,800 to 2,000Lx; when concentration of the oocystis reaches 650,000 to 750,000 pieces per milliliter after 12 to 18 days, stopping aeration; after sedimentation, removing supernatant liquid to obtain the oocystis purebred liquid. Compared to the prior art, the invention provides a special nutrition formulation and the most proper physical and chemical factor culture conditions of a temperature, salinity, acidity and alkalinity, illumination and the like for oocystis culture, and the prepared oocystis purebred liquid can be used for selectively breeding and culturing oocystis with high activity and high stress resistance.

The invention relates to a young animal feeding device. The young animal feeding device comprises a barrel body, a placing barrel and a water tank, wherein a water channel connected with the water tank is formed between the placing barrel and the barrel body, at least one heat preservation box is fixedly connected at the bottom end of the placing barrel, at least two discharge tubes are uniformly arranged on each heat preservation box, and a removable nipple is arranged on each discharge tube. The young animal feeding device disclosed by the invention has the advantages of effectively guaranteeing continuity of milk supply for young animals by transporting hot water in the water tank to the water channel through a second water pump, heating the milk in the placing barrel by hot water in the water channel, and sucking the milk in the heat preservation box through the discharge tubes to improve the breeding quality of the young animals so as to reduce the phenomenon of uneven sizes of the original young animals, reducing wastes because the heat preservation box is a sealed container to lower the breeding cost, and having good use effect and capacity of simultaneously breeding the young animals in different breeding stages to facilitate good practical performance.

The invention relates to an automatic regulation and control type culture system, which comprises at least one culture shed, a ground source heat pump system, a solar heat collector, an energy-saving coal-firing boiler, a water circulation pipeline and a central controller, wherein the central controller is used for controlling the constant temperature of a culture tank, the ground source heat pump system, the solar heat collector and the energy-saving coal-firing boiler are coupled, the problem of a series of harsh requirements on agricultural culture environment is solved, the conventional low-energy-efficiency and high-emission method adopting a small-size coal-firing boiler for heating and heat insulation is replaced, a ground source heat pump technology and a solar energy heat collection coupling utilization technology are successfully used in special-environment agricultural aquaculture facilities for temperature regulation.

The invention relates to a method for preparing seawater crystal with refined iminodiacetic acid by-product salt and the steps are as follows in order: washing the by-product salt, solving, fine filtering, filtering with various medium, micro-filtering, chelating, secondary fine filtering, recrystallizing, centrifugating and drying, then adding a proportion of MgSO4, MgCl2, CaCl2, KCl and NaS2O3 into the salt to prepare seawater crystal and the proportion is: NaCl 72.3-77.5%, MgSO4 7.5-12%, MgCl2 11.6-13.5%, CaCl2 1.65-1.94%, KCl 1.35-1.64% and NaS2O3 0.001-0.002%, with the total percentage of 100%. The invention uses a method for preparing seawater crystal with refined iminodiacetic acid by-product salt, which is characterized in using by-product NaCl, reducing raw materials cost and protecting the environment, which is a typical clean production process.

The invention discloses a nutritional feed additive product, belongs to the feed field, and particularly relates to the feed additive. The invention provides the nutritional feed additive product comprising the following components in parts by weight: 1-3 parts of stachyose, 3-10 parts of soybean polypeptide, 3-5 parts of an angelica sinensis extract, 2-6 parts of lentinan, 16-23 parts of a bacillus subtilis powder, 15-25 parts of a lactobacillus plantarum powder, 2-5 parts of a raw ginger powder, and 3-8 parts of a ganoderma lucidum solid fermentation culture. Through scientific compounding, bacillus subtilis, lactobacillus plantarum and ganoderma lucidum are in organic combination, and the content of probiotic components in the additive product is strengthened; especially, the traditional Chinese medicine ingredients are added in culturing of ganoderma lucidum; the product can effectively reduce the usage amount of antibiotic drugs in feeding animals, improves the safety of animal meat products, improves animal feed utilization efficiency, enhances animal immunity, and improves the feeding efficiency.

The invention discloses an air monitoring system for improving the live pig raising quality. The air monitoring system comprises a gas sensor, a ventilation fan and a controller, the gas sensor is mounted in a pig house, the ventilation fan is mounted on the sidewall of the pig house, the gas sensor and the ventilation fan are respectively electrically connected with the controller, the gas sensorcomprises a shell internally having a cavity, an air inlet nozzle and an air outlet nozzle which are in threaded connection with the shell are arranged at one end of the shell, a waterproof joint inthreaded connection with the shell is arranged at the other end of the shell, an explosion-proof filter, a gas detection element and a circuit board are sequentially arranged in the shell from the airinlet nozzle end to the waterproof joint end, an air guiding channel is arranged between the air inlet nozzle and the explosion-proof filter, and one end, close to the air inlet nozzle, of the air guiding channel is in threaded connection with the shell. The air monitoring system with the above structure has the advantages of high monitoring precision, fast response speed, high sensitivity and strong explosion-proof performance.

The invention discloses a method for cultivating cray in a rice field in the southern region. The method comprises the steps that a rice field is selected, a ditch is deepened, rice is planted and cultivated, cray is stocked, and houttuynia cordata is planted in the ditch by adopting the soilless culture technology; the temperature of the water surface can be lowered, the summer survival rate of the cray is increased, and the survival rate is 60-65%; the cray growth rate can be increased by 5-12%, the disease occurrence rate is lowered by 8-10%, the cray culture quality and yield are increased; meanwhile, due to the sterilizing effect of houttuynia cordata, diseases can be effectively reduced.

The invention discloses an automatic feed delivery control method comprising the following steps: an ultrasonic probe sensor sends an ultrasonic detection signal to the bottom of a feed basin under the control of a main control MCU; a contact probe sensor samples whether there is feed in the feed basin under the control of the main control MCU, and sends the maintaining time of the sampling level to the main control MCU; a clock chip circuit generates a stable clock signal to communicate with the main control MCU; the main control MCU makes the ultrasonic probe sensor and the contact probe sensor perform detection in the order of time according to the clock signal; and under the control of the clock signal, the main control MCU makes a comprehensive judgment according to received signals sent by the ultrasonic probe sensor and the contact probe sensor to confirm whether to not to perform feeding operation. Intelligent and accurate feeding of poultry is realized. The utilization rate of feed is increased. The waste of resources and the discharge of pollutants are reduced. The labor intensity in the process of poultry feeding is reduced.

The invention belongs to the field of aquaculture, and discloses a breeding method capable of improving disease resistance of oncorhynchus mykiss. The method comprises the following steps: washing a pond pasted with cement, and disinfecting the pond by using lime water; sprinkling a fertilizer on the water surface of the pond; selecting fry with equal sizes and a body length of 3-5 cm, and throwing the fry according to a fry throwing amount of 5000-10000 / mu; after the fry are thrown, performing feeding by using fry bait, wherein feeding is performed once separately in the morning and evening,and feeding is performed according to a feed amount of 5-10% of a body weight of the oncorhynchus mykiss every time; after the fry are mature, performing feeding by using mixed feed, wherein feeding is performed according to a feed amount of 10-15% of a body weight of the oncorhynchus mykiss every time; and performing comprehensive sterilization on the fish pond for one time every month, and regularly removing sediments at the bottom of the pond every month. The method provided by the invention has simple operation, and the oncorhynchus mykiss has high autoimmune function and disease resistance, a high survival rate, a high growth speed and high economic benefits.