418 results about "Aquatic animal" patented technology

The invention discloses a low-carbon freshwater fish feed added with fermented bamboo powder and application of the low-carbon freshwater fish feed, and belongs to the technical field of aquatic animal feeds. The low-carbon freshwater fish feed capable of reducing the fat rate of fish bodies and / or reducing nitrogen and phosphorus emission is prepared from the fermented bamboo powder, and the content of vitamins, enzymes and growth factors in the feed can be increased by adding the fermented bamboo powder, so that the freshwater fish bodies have good anti-pathogenic activity; the absorption and utilization of the freshwater fish on nutritional ingredients and fiber-rich ingredients in the feed are improved, so that the aim of reducing the emission of nitrogen and phosphorus is fulfilled; meanwhile, the fermented bamboo powder is used for partially replacing soybean meal in the freshwater fish feed, so that the dosage of feed raw materials such as the soybean meal is reduced, the intestinal health of the freshwater fish is improved, the muscle quality of the freshwater fish is improved, the earthy smell in muscles is reduced, the body type of the freshwater fish is also improved, and the fat content in abdominal muscles is reduced.

The invention belongs to the technical field of disease prevention and treatment and aquaculture, and relates to application of acacetin in preparation of a medicine for preventing and treating white spot syndrome. The invention discloses that the acacetin has the biological activity of resisting the white spot syndrome virus for the first time, verifies that the acacetin can obviously inhibit the replication of the white spot syndrome virus in the procambarus clarkia body, and simultaneously improves the survival rate of the procambarus clarkia infected by the white spot syndrome virus. The acacetin has a good antiviral effect on the white spot syndrome virus in crustacean aquaculture, and can be applied to prevention and treatment of aquatic animal diseases caused by the white spot syndrome virus.

The invention provides an artificial breeding method of wild sal-family large yellow croaker, and belongs to the technical field of aquatic animal breeding. The invention provides an artificial breeding method of wild sal-family pseudosciaena crocea, which comprises the following steps: domesticating the wild sal-family pseudosciaena crocea, then carrying out intensive cultivation, and after the wild sal-family pseudosciaena crocea is cultivated until gonad is mature, carrying out artificial spawning induction and natural fertilization on the obtained parent fish of the sal-family pseudosciaena crocea to obtain fertilized eggs; the fertilized eggs are subjected to incubation and fry cultivation, and sal-family large yellow croaker fries are obtained; the artificial spawning method comprises the step of injecting hormone into parent fish in two steps. According to the method, favorable conditions are created for large-scale breeding of the sal-family pseudosciaena crocea, and a large number of artificially bred sal-family pseudosciaena crocea fry groups can be obtained by adopting the method.

The invention relates to the field of aquatic feed, and provides a low-temperature adhesive type aquatic feed particle composition and a preparation method thereof. The composition is composed of puffed soybean meal, flour, fish meal, low-temperature directed enzyme, microcrystalline cellulose, modified zein nanoparticles, a protein adhesive and a modified zein ethanol water solution. The preparation method comprises the following specific steps: reacting soybean protein isolate with cross-linking enzyme to generate a protein adhesive, reacting proanthocyanidins with gallic acid to generate gallic acylated proanthocyanidins, and carrying out multi-step treatment on zein. Experimental results show that the composition has excellent water resistance and oxidation resistance, and the growth efficiency and the survival rate of aquatic animals are remarkably improved. The preparation method is simple, the cost is low, heat-sensitive substances in the feed are not damaged, and an economical, efficient and nutrient-rich feed solution is provided for aquaculture.

The invention relates to the technical field of aquatic animal living body transportation, and discloses a sea urchin long-distance transportation synergistic method based on dry transportation and anhydrous volatile anesthesia, which comprises the following steps: placing sea urchin in a closed container, using a natural volatile substance as an anesthetic, loading and volatilizing through an adsorption material, and performing anhydrous anesthesia on the sea urchin; the anesthetized sea urchin is inversely placed on a fixing support with a mesh structure in a transportation container in the posture that the mouth face faces upwards and the thorns face downwards, and the sea urchin is prevented from rolling over in the transportation process through the self-locking effect of the thorns and meshes; a functional interlayer is arranged in the fixing support, and a temperature control material and a moisturizing material are placed in the functional interlayer at the same time to maintain the temperature and humidity of the transportation environment; after transportation, the sea urchins are placed in seawater containing the cactus extract for initial recovery and then transferred to flowing natural seawater to complete unified recovery, a whole-process collaborative protection chain of anhydrous anesthesia loss prevention, dry transportation steady state maintenance and rapid water phase restoration can be constructed, and the dry transportation survival rate and quality are remarkably improved.

The invention discloses an application of marine streptomyces SH110 and a source compound thereof, the marine streptomyces SH110 has a preservation number of GDMCC (China General Microbiological Culture Collection Center) NO.66668, and the preservation date is July 14, 2025; the invention also discloses application of the marine streptomyces SH110-derived compound in preparation of a medicine for preventing and treating streptococcus and vibrio diseases. The marine streptomyces source compound has efficient vibrio and streptococcus resisting activity, the vibrio and streptococcus resisting activity is not reported, and the marine streptomyces source compound has new application. The marine streptomyces source compound is used for preparing the medicine for preventing and treating the vibrio and streptococcus diseases, especially for preparing the medicine for preventing and treating the vibrio and streptococcus diseases of aquaculture animals, the safety is high, and the treatment effect is good.

The invention provides an artificial propagation method of Sinilabeo wuyi, and belongs to the technical field of aquatic animal breeding. The artificial propagation method of the Sinilabeo wuyi comprises the steps of parent fish classification, parent fish rearing, artificial spawning induction, natural insemination, artificial insemination, fertilized egg incubation, fry rearing, juvenile fish rearing and the like. The oxytocic is reasonable in compatibility, the injection time of the oxytocic is accurate, the oxytocic rate, the fertilization rate and the hatching rate are increased, and damage to parent fishes is small. According to the method, feeding methods in different stages of fry breeding are also defined, the survival rate of the sinilabeo wuyi fry breeding stage is increased, and a technical support is laid for artificial breeding of the endangered species sinilabeo wuyi.

The invention belongs to the field of prevention and control of bacterial diseases of aquatic animals, and discloses an acid-resistant broad-spectrum vibrio parahaemolyticus bacteriophage LVPP58 and application of the acid-resistant broad-spectrum vibrio parahaemolyticus bacteriophage LVPP58 in vibrio disease prevention and control, and the preservation number of the bacteriophage is CCTCC M 2025322. The bacteriophage is a broad-spectrum vibrio parahaemolyticus bacteriophage, not only can split vibrio parahaemolyticus, but also can split vibrio alginolyticus, the bacteriophage LVPP58 is stable in titer at the pH of 3-11 and the temperature of 30-60 DEG C, the bacteriophage and antibiotics are combined for use, a synergistic effect can be generated, the treatment effect is enhanced, the occurrence rate of drug resistance is reduced, and a new strategy is provided for solving the problem of bacterial drug resistance.

The invention, which relates to the technical field of data monitoring, discloses a wireless multi-sensing data monitoring terminal system for smart rice and fishery, comprising a data setting module for setting an initial monitoring frequency; the environment monitoring module monitors the growth condition of rice and fish, soil data and the state of aquatic animals in real time, and captures the growth environment change of rice and fish in time; the data processing module is used for quantifying the change degree of the rice and fish growth environment according to the characteristic data related to the change of the rice and fish growth environment and the abnormality of the cultured object extracted by the environment monitoring module; the early warning module is used for predicting the growth environment change through a machine learning model, and automatically sending out an early warning signal when the rice and fish growth environment change is predicted to be abnormal; and the dynamic adjustment module dynamically adjusts the monitoring frequency of the monitoring equipment so as to cope with the change of the growth environment of rice and fish. According to the method, the environmental change rate is dynamically adapted by adjusting the monitoring frequency, so that the robustness, timeliness and decision accuracy of the system can be remarkably improved.

The invention relates to the technical field of aquatic animal cell culture, in particular to a rapid enrichment and separation method for gonad somatic cells of plectropomus leopardus. Comprising the following steps: selecting healthy plectropomus leopardus for anesthesia; the method comprises the following steps: taking gonad tissues, performing sterile treatment, cutting, centrifugal washing and filtering, inoculating the gonad tissues into a culture medium for primary culture to obtain gonad cells emigrated from tissue blocks, performing trypsin-EDTA digestion and centrifugal washing, and treating the gonad cells with 1 * PBS containing polysorbate; after closing, antibody incubation and washing, the marking effect is verified through a fluorescence microscope, and specific enrichment of gonad somatic cells is achieved; and filtering and purifying the enriched fluorescence-labeled cells, placing the cells under a fluorescence microscope, accurately picking fluorescence-positive cells under a fluorescence visual field, transferring the fluorescence-positive cells into a culture dish containing a complete medium, inoculating the separated fluorescence-positive cells into the optimized complete medium, and carrying out purification culture, so that the cells grow in a wall-attached manner and stable passage is realized.

The invention belongs to the technical field of aquatic animal breeding, and particularly relates to a grass carp parent salinity tolerance related molecular marker suitable for fry salinity domestication and application of the grass carp parent salinity tolerance related molecular marker in grass carp salt tolerance breeding. The nucleotide sequence of the SNP molecular marker related to the salinity tolerance character of the grass carp is as shown in SEQ ID NO: 1; a / C polymorphism exists at the 111st site in the DNA fragment shown in the nucleotide sequence, and when the genotype of the SNP molecular marker is CC or AC, the to-be-detected sample is the salinity-tolerant grass carp; when the genotype of the SNP molecular marker is AA, the to-be-detected sample is the salinity-sensitive grass carp. The SNP molecular marker closely related to the salt tolerance character is screened through a salinity tolerance test. Therefore, the molecular marker provided by the invention can be used for carrying out breeding work and detection work of the salt-tolerant grass carp.

The invention discloses application of an SNP (Single Nucleotide Polymorphism) molecular marker related to the character of siniperca chuatsi in feeding artificial compound feed, and belongs to the field of biotechnology and aquatic animal genetic breeding. The SNP molecular marker is located at the 29390304 site from the 5'end on the 10 # chromosome of the siniperca chuatsi genome, is A or T, and is easy to domesticate when the genotype is AA; or the SNP molecular marker is located at the 1218488 site from the 5'end on the 20 # chromosome of the siniperca chuatsi genome, and is easy to domesticate when being the genotype of T or A or TT. The SNP molecular marker is closely related to the artificial compound feed intake capacity of the siniperca chuatsi, so that the feeding domestication potential of the siniperca chuatsi can be predicted in an early stage through the SNP molecular marker, or molecular marker-assisted breeding is performed through the SNP molecular marker, the proportion of individuals easy to domesticate in a group is increased, the breeding cost is remarkably reduced, and the breeding efficiency is improved. The economic benefit is improved.

The invention provides application of naphthoquinone compounds in preparation of insecticides for preventing and / or treating parasitic diseases in aquatic animals, and belongs to the technical field of aquaculture. The naphthoquinone compound disclosed by the invention is 2-chloro-1, 4-naphthoquinone, and can be used for killing or preventing pyramidal bodies in aquatic animals. The invention also provides an insecticide for killing or preventing pyramidal worms in aquatic animals by using the naphthoquinone compound, and the insecticide comprises the following raw materials in percentage by weight: 20-30% of the naphthoquinone compound, 5-10% of a surfactant, 5-10% of a dissolving agent and the balance of water. An in-vitro insecticidal experiment and an in-vivo insecticidal experiment prove that the 2-chloro-1, 4-naphthoquinone can be used for efficiently killing insects; and the 2-chloro-1, 4-naphthoquinone has no obvious toxic or side effect on the fish body, and does not influence the growth and physiological functions of the fish body.

The invention discloses a bacillus safensis strain and application thereof in aquaculture, and relates to the technical field of aquaculture disease prevention and control, the obtained bacillus safensis strain ZY-1 forms spores under a certain fermentation condition, can be prepared into powder for preservation, has a long shelf life, has the bacteriostatic activity retention rate of more than or equal to 85% after being stored in a dark place for 12 months at 4-25 DEG C, and has the antibacterial activity of more than or equal to 7.2%. The production, transportation and storage cost is saved, main bacteriostatic effect factors of the bacillus safensis ZY-1 strain exist in extracellular metabolites, the bacillus safensis ZY-1 strain is stable in performance and resistant to high temperature, acid and alkali, ultraviolet rays, protease and the like, and fermentation supernatant of the bacillus safensis ZY-1 strain can be directly applied or prepared into spray-dried powder and is suitable for various aquaculture application scenes such as pond splashing and feed mixing and feeding. The metabolite spray-dried powder has a remarkable killing effect on high-pathogenicity vibrios VpAHPND and VpTPD, the minimum inhibitory concentrations of metabolite spray-dried powder respectively reach 23.44-46.88 mu g / ml and 46.88-93.75 mu g / ml, and the metabolite spray-dried powder can be used for preventing and controlling prawn infectious hepatopancreas necrosis and prawn transparent larva diseases induced by the metabolite spray-dried powder and also has a certain killing function on pathogens of other aquatic animals.

The invention discloses a novel squid quality degree grading judgment method based on physical and chemical indexes of freshness, which comprises the following steps: selecting different squids as samples, respectively carrying out volatile basic nitrogen content detection and total texture analysis on the squids, measuring the freshness and the physical and chemical indexes of the squids, carrying out Pearson correlation on the two, and determining the quality degree of the squids. Through principal component analysis and combination of TVB-N content on a freshness limit value of an animal aquatic product, texture physicochemical indexes having the greatest influence on squid quality grading are found. According to the method, the quality of the squids can be quickly judged by performing texture analysis on the squids, combining with the limit value of the content of volatile basic nitrogen in animal aquatic products in national standard and measuring the elasticity index of the sample, so that quick quality grading judgment can be performed on the squids on the basis, and scientific guidance is provided for further quick quality identification of marine foods.

The invention belongs to the field of molecular marker screening of aquatic animals, and provides a KASP molecular marker for identifying high temperature resistance of procambarus clarkii and application of the KASP molecular marker. According to the procambarus clarkia high-temperature-resistant gene Hsp70-1 and the procambarus clarkia high-temperature-resistant gene Hsp70-2 disclosed by the invention, two SNP (Single Nucleotide Polymorphism) sites of the procambarus clarkia high-temperature-resistant gene Hsp70-1 and the procambarus clarkia high-temperature-resistant gene Hsp70-2 are remarkably related to high-temperature resistance, Hsp70-1-Hap1 haplotypes and Hsp70-2-Hap1 haplotypes are high-temperature-resistant dominant haplotypes, and the application potential of high-temperature-resistant application through combination of the double genes of KSAP markers developed aiming at the loci are good in typing effect, high in specificity, good in stability, convenient to detect, economical and efficient, and can be widely applied to breeding of high-temperature-resistant varieties of the procambarus clarkii. The KASP marker disclosed by the invention can screen out the procambarus clarkii with the SNP haplotype combination with the high-temperature-resistant advantage, and meets the technical requirements of high-temperature-resistant molecule-assisted breeding of the procambarus clarkii.

An electric stunning apparatus (100) for anesthetizing an aquatic animal (10), hereunder fish and crustaceans, wherein the electric stunning apparatus (100) comprises an electric stunning device (300) configured to achieve controlled exposure time for electric field strength applied to the aquatic animal (10) in the electric stunning phase. Fig. 2a.

The application discloses a kind of aquaculture water body in aquatic animal identification method, system, storage medium and equipment, it is related to image recognition technical field, the method is by camera module deployed in water body interior and is gathered multi-view image construction image set, and by floating type communication device synchronization space-time metadata stable transmission to cloud end;In cloud end, sequentially execute the unsupervised screening based on image content features, color self-adaptive correction according to the optical characteristics of water body and the frequency domain enhancement processing combined with semantic guidance, form three-level preprocessing pipeline, significantly improve image quality;Finally, the optimized image is input into pre-trained underwater target detection model, and the high-precision aquatic animal identification result is output.The method effectively solves the problems of poor data transmission stability, low target feature recognition and insufficient real-time identification in complex water environment.

The invention belongs to the technical field of biomolecular markers, and particularly relates to a cross-animal general skeleton-derived hematopoietic stem cell marker gene set and a screening method thereof. According to the invention, a bone-derived hematopoietic stem cell marker gene set universal across animal categories is constructed for the first time, and the bone-derived hematopoietic stem cell marker gene set comprises at least five of Cdc42, Cbx, Tfam, Denr, Mcts1, Ak2, Ruvbl, Ahcy, Nna and Vdac; the hematopoietic stem cell marker gene set is obtained through cross-species homologous gene screening, the defect that a traditional vertebrate marker has no orthohomology in invertebrates is overcome, accurate recognition of HSC in shells is achieved, the hematopoietic stem cell marker gene set has species universality and cell specificity, the immune state of aquatic animals can be evaluated, disease-resistant breeding can be guided, and the application prospect is wide. And molecular evidence is provided for analyzing an evolution path of a hematopoietic system from invertebrates to vertebrates.

The application provides a new bacteriophage for preventing and treating vibrio diseases of aquatic animals and application thereof, the bacteriophage is preserved in China Center for Type Culture Collection on September 4, 2020, and the preservation number is CCTCC M 2020465. The bacteriophage is a new species of bacteriophage of the Caudovirales class and Queuovirinae subfamily, the whole genome of the bacteriophage is OP331229.1 in the NCBI official website GeneBank. The bacteriophage has a wide phage spectrum, can crack 6 different species and genera of vibrio at the same time, can crack 45 strains of Vibrio parahaemolyticus, 22 strains of Vibrio harveyi, 17 strains of Vibrio alginolyticus, 13 strains of Vibrio vulnificus, 11 strains of Vibrio campbellii and 9 strains of Vibrio cholerae at the same time, can more effectively solve the problem of multiple bacterial disease infections in aquaculture, and can be used as a microecological preparation for preventing and treating vibrio diseases such as Vibrio parahaemolyticus, Vibrio harveyi and Vibrio alginolyticus of aquatic animals.

The invention relates to the technical field of biological product manufacturing, and particularly discloses an anti-shewanella-alginate egg yolk antibody as well as a preparation method and application thereof. The invention relates to an anti-shewanella algal egg yolk antibody, which is obtained by immunizing laying hens by using inactivated shewanella algal (RDSH-25070) thalli as antigens, collecting egg yolk liquid, separating and purifying, the shewanella algal (RDSH-25070) is preserved in China General Microbiological Culture Collection Center (CGMCC) on November 14, 2025, is named as shewanella algal, and is preserved in China General Microbiological Culture Collection Center (CGMCC) on November 14, 2025. The preservation number is CGMCC (China General Microbiological Culture Collection Center) The anti-shewanella-alginate egg yolk antibody disclosed by the invention has a strong inhibiting effect on shewanella alginate, can be effectively applied to preventing and treating diseases caused by the shewanella alginate for aquatic animals, and can be used for effectively retaining freshness and preventing corrosion of aquatic products at the same time.

The invention discloses a sewage plant tail water treatment system and method, and relates to the technical field of sewage treatment.The sewage plant tail water treatment system is applied to tail water generated by a sewage plant adopting an ozone advanced oxidation technology, and the treatment system comprises an activated carbon reaction device, a denitrification reaction device, an ecological pond and a horizontal subsurface flow wetland; the activated carbon reaction device is communicated with the tail water pipe and comprises an activated carbon filtering layer, and the activated carbon filtering layer is used for adsorbing chemical oxygen demand and dissolved oxygen in tail water; the denitrification reaction device is communicated with the activated carbon reaction device and comprises a denitrification filter material layer, and the denitrification filter material layer is used for autotrophic denitrification nitrogen removal of tail water; the ecological pond is communicated with the denitrification reaction device and comprises aquatic plants and aquatic animals; the horizontal subsurface flow wetland is communicated with the ecological pond and is used for deeply filtering the tail water. The treatment system can improve the purification effect of the tail water of the sewage plant.

The application discloses a kind of molecular markers for identifying genetic sex of blue fish and its application, belong to the field of aquatic animal genetics and breeding.The molecular marker includes nucleotide sequence such as the common band of blue fish female and male fish shown in SEQ ID NO:1 and nucleotide sequence such as the unique band of blue fish male shown in SEQ ID NO:2, and the identification method comprises: taking the DNA of the blue fish sample to be identified as template for PCR amplification, after the band of PCR product is determined by agarose electrophoresis, capillary electrophoresis is carried out, if signal appears at 152bp and 168bp simultaneously, then it is male;If only signal appears at 168bp, then it is female.The molecular marker of the application can accurately obtain the genetic sex of different blue fish populations, has the advantages such as simple, fast, efficient, not affected by early undifferentiated gonad of blue fish, etc., is used for blue fish marker assisted breeding, which greatly saves the cost of aquaculture and improves the breeding efficiency.

The utility model relates to a dirt suction device which is used for sucking dirt in liquid. The sewage suction device comprises a sewage suction pump, a protective cover, a water inlet pipe and a stirring piece. A cavity with an opening is defined by the protective cover; the protective cover is provided with a first through hole and a second through hole, and any two of the first through hole, the second through hole and the opening are arranged at intervals and communicate with the cavity. The opening of the protective cover is used for being arranged in liquid. A pipe opening in one end of the water inlet pipe is communicated with the liquid inlet end of the sewage suction pump; the other end of the water inlet pipe penetrates through the first through hole and is connected with the protective cover; a pipe orifice at one end, far away from the sewage suction pump, of the water inlet pipe is communicated with the cavity. The stirring piece comprises a stirring handle and a stirring head; the stirring handle penetrates through the second through hole and is connected to the stirring head; and the stirring head is arranged in the cavity. According to the sewage suction device, aquatic animals can be prevented from being accidentally injured in the sewage suction process.

The application discloses application of pyrroloquinoline quinone (PQQ) or a derivative thereof in preparation of a product for relieving or preventing blue-green algae toxin poisoning of yellow catfish, and belongs to the technical field of aquatic animal feed. The PQQ or the derivative thereof can be used as an aquatic feed additive or a medicine, and is added in an amount of 3-6 mg / kg of feed to feed yellow catfish, so as to effectively relieve pathological damage of the liver of the yellow catfish caused by blue-green algae toxin through various ways such as improving key enzyme activity of liver function, inhibiting liver oxidative stress, relieving inflammatory reaction and reducing structural damage of tissues. The PQQ is a new food raw material approved in China in 2022, has advantages of high safety, good water solubility, moderate cost, similar dosage to that of feed vitamins and the like, and provides a safe, economical and convenient new nutritional intervention strategy for blue-green algae toxin poisoning of the yellow catfish, and has a wide industrial application prospect.

The invention discloses a micro-ecology-based riverway sewage treatment system, which sequentially comprises a water inlet and pretreatment unit, a micro-ecology treatment unit, a water outlet unit and a monitoring and control unit along the water flow direction of a riverway, and is characterized in that the water inlet and pretreatment unit is used for intercepting large floating objects and homogenizing water quality; the micro-ecological treatment unit is communicated with the water inlet and pretreatment unit and is used for degrading and absorbing pollutants through the synergistic effect of microorganisms, aquatic plants and aquatic animals. By constructing a composite system integrating physical pretreatment, multi-stage micro-ecological collaborative purification, ecological stability maintenance and intelligent precise regulation and control, the pollutant removal efficiency is greatly improved by utilizing the efficient synergistic effect of microorganisms, aquatic plants and aquatic animals; the stability and the impact load resistance of the system are enhanced through the modular design and the composite ecological structure; and the integrated intelligent monitoring and control unit realizes accurate regulation and control of energy consumption equipment for aeration and the like as required, and the operation energy consumption is effectively reduced.

The present invention provides a high-protein bio-fermented aquatic feed and a preparation method thereof. The aquatic feed comprises the following raw materials in parts by weight: 20-30 parts of imported fish meal, 10-15 parts of compound minerals, 5-10 parts of bioactive peptides, 5-10 parts of lysine, 5-10 parts of compound trace elements, 3-8 parts of compound vitamins, 3-6 parts of herbal extracts, 2-5 parts of compound probiotics, 2-4 parts of immune polysaccharides, and 1-3 parts of compound enzymes; the herbal extracts are prepared by fermenting astragalus membranaceus, isatis root, liquorice root, calotropis gigantea, ventilago leiocarpa benth, clove, rhizoma chuanxiong, and galangal officinale. By organically integrating imported fish meal, astaxanthin-peptide chelate, herbal extracts, compound immune polysaccharides, compound probiotics and various nutrients, the present invention realizes the synergistic effect of "promoting feeding - enhancing digestion - strengthening liver and gall - enhancing immunity - resisting stress - inhibiting bacteria - stabilizing water quality", significantly improves the growth rate, survival rate and comprehensive breeding benefit of crustacean aquatic animals, and has good economic value and application prospect.

The invention provides a preparation method of microalgae bait, the microalgae bait is prepared through microalgae culture, magnetic separation, microencapsulation wrapping, drying and other methods, during culture, a specific culture solution is added, culture conditions are adjusted, algae liquid cells are separated by adopting a nano magnetic dispersant, effective components in the microalgae cells are ensured, mixed cell sap is screened out, and the microalgae bait is prepared. The components in the core material are wrapped through microencapsulation wrapping, the components of the wall material are used for isolating the external environment, good oxidation resistance and water resistance are achieved, notches and pores of the bait are reduced after wrapping, the performance is stable, the storage life is long, the swelling and collapsing time in water is prolonged, collapsing of nutritional ingredients in the core material is delayed, and the bait has the advantages of being good in stability and good in stability. The loss rate is low, the acid value change rate is within 2.20%, the peroxide value change rate is within 1.41%, the water resistance time reaches 8.5 h, the loss rate is within 4.85%, the sinking rate reaches 98%, the bait is easy to sink into the water bottom and beneficial to being ingested by aquatic animals, and the utilization rate of the bait is increased.

The invention discloses a method for ecologically regulating and controlling a culture water body in marine culture fundamental research, and relates to the technical field of regulation and control of culture water bodies. The method for ecologically regulating and controlling the culture water body in the marine culture fundamental research comprises the following steps: S1, building an aquatic animal culture test system, injecting pretreated seawater into a culture container of the aquatic animal culture test system, and then putting aquatic animals into the pretreated seawater; s2, providing solieria seedlings, inoculating the solieria seedlings to a floating frame with holes, fixing the upper ends of the solieria seedlings by using a final singling net, and then putting the floating frame with holes inoculated with the solieria seedlings into the culture container; and S3, carrying out a breeding test. According to the technical scheme, the method suitable for stabilizing the indoor mariculture water body is provided, by ecologically regulating and controlling the content of nitrogen and phosphorus in the aquaculture water body, breeding of unicellular algae is effectively prevented, exogenous pollution is reduced, and therefore the water body is stabilized.