95results about How to "Improve hatchability" patented technology

The invention provides a breeding method of golden and tiger hybrid spotted fish eggs. The breeding method comprises the following steps: S1, parent screening; s2, parent cultivation; s3, artificial insemination: (1) spawning induction: when the belly of the female parent fish expands, the ovary develops to the IV stage and the male parent fish presses the belly to cause white seminal fluid to flow out, performing oxygenation flowing water stimulation on the female parent fish, and performing irradiation with a TDP radiation lamp for spawning induction; (2) fertilization; s4, artificial incubation: (1) arranging an incubator, injecting seawater, and performing plasma treatment to obtain a treated incubator; and (2) adding the fertilized eggs into the treated incubator, carrying out magnetization treatment, adding chitosan, and hatching to obtain the larva fish. According to the breeding method, the sperm and egg quality can be improved, the fertilization rate and the hatching rate are remarkably increased, and according to verification of the embodiment, the fertilization rate ranges from 97.4% to 99.3%, and the hatching rate ranges from 95.6% to 97.1%. The hatched larvae are not deformed, the survival rate is 96%-99%, the quality of the larvae is high, and a good foundation is established for obtaining high-quality hybrid Jinhuasu.

The invention discloses a large-scale breeding device and method for cherax quadricarinatus. The breeding method comprises the steps of parent shrimp selection and breeding, incubation management and shrimp seed breeding management. Wherein the designed breeding device comprises a hole structure and a shading plate which are bricked in a mating pool, and an inhabiting layer type pore plate for collecting and breeding the young shrimps, so that the mating rate of the parent shrimps, the hatching rate of egg-carrying shrimps and the survival rate of the young shrimps can be effectively increased, the elimination rate of the parent shrimps is greatly reduced, and large-scale production and large-batch emergence of the young cherax quadricarinatus are realized.

The invention discloses a static water pushing fish egg hatching device which comprises a hatching tank, a hatching net cage and a driving mechanism. Water is contained in the hatching tank; the hatching net cage is arranged in water in the hatching tank, and the inside of the hatching net cage is used for accommodating roes; and the driving mechanism is used for driving the hatching net cage to reciprocate in the hatching tank. In the roe hatching process, roes are placed in the hatching net cage, the hatching net cage is placed in water in the hatching tank, the hatching net cage is driven to move back and forth in the water, the effect of static water pushing and water flow simulation is achieved, the roes are embraced by a mother body, damage to the roes is small, the oxygenation effect is good, a proper environment is achieved, and the breeding efficiency is improved. Therefore, the hatching rate of roes can be improved.

The invention relates to the technical field of incubator accessories, in particular to an egg containing mechanism and an intelligent incubator with the egg containing mechanism, the egg containing mechanism comprises an incubation tray and further comprises a connecting sleeve and a turning-around assembly, the connecting sleeve is rotationally arranged on the outer side of a positioning column in a sleeving mode, and the outer side face of the connecting sleeve is of a polygonal structure; each outer side face of the connecting sleeve is movably connected with two transversely-arranged sliding plates, and the two sliding plates are each rotationally connected with an egg support arranged in the length direction of the corresponding sliding plate. The turning-around assembly is arranged between the sliding plate and the egg supports and used for exchanging the inner side and the outer side of the upper egg support and the outer side of the lower egg support. The two clamping plates are arranged on the egg support to fix the two ends of the eggs, the turning-around assembly is arranged at the bottom of the egg support, when the egg support rotates, the second gear ring in the cover body is matched, so that the egg support drives the eggs to change the positions of large heads and small heads, the two ends of the eggs can be intermittently and uniformly heated, and the hatching rate of the eggs is increased.

The invention provides a method for on-site rapid artificial insemination of wild sal-family large yellow croakers, and belongs to the technical field of aquatic animal breeding. According to the method, wild parent fishes are captured in the breeding season of the sal-family pseudosciaena crocea; selecting sexually mature male parent fishes on a capturing site, and collecting seminal fluid for later use; after manual semen collection is finished, female parent fishes with sexual maturity are selected, and fish eggs are collected; performing artificial insemination to obtain high-quality fertilized eggs; the artificial insemination comprises the following steps: adding seminal fluid into the roes, then adding natural seawater, stirring, and finally washing with the natural seawater. According to the method, key links of the whole artificial insemination process are comprehensively regulated and controlled, so that the purposes of obtaining high-quality fertilized eggs and carrying out artificial fry breeding by utilizing the parent fish of the wild sal ammoniac large yellow croaker are achieved.

The utility model provides a fairy shrimp temperature control hatching device which comprises a hatching box, a heating plate, a motor, a rotating shaft, blades and a pushing mechanism, the pushing mechanism comprises a sleeve, a piston, a reset spring, a stress block, a pushing rod, a transverse pipe, a vertical pipe and a jet head, and fairy shrimp eggs and hatching liquid can be poured into the hatching box. A proper temperature environment is provided under the action of a heating plate, meanwhile, a motor can drive blades to rotate through a rotating shaft, so that the fairy shrimp eggs are evenly distributed in hatching liquid, in addition, when the rotating shaft rotates, a push rod can make contact with a stress block, a piston is pushed by the stress block to move towards the interior of a sleeve, and when the piston moves, the stress block is pushed into the sleeve. Air in the sleeve can be pushed into the transverse pipe from the vertical pipe, the air spraying head on the transverse pipe can spray the air out, the content of dissolved oxygen in hatching liquid is increased, meanwhile, upward water flow is formed in the hatching liquid, the phenomenon that the eggs of the fairy years sink to the bottom is avoided, it is guaranteed that the eggs of the fairy years can receive proper heat, and the hatching rate is increased.

The invention relates to a special pond for medium and large octopus breeding and a using method, and belongs to the technical field of aquaculture facilities, the special pond comprises a culture pond body and a nest fixed on the wall of the culture pond, the nest is composed of a semi-embedded frame and an inner insertion nest, the inner insertion nest can be freely inserted into or pulled out of the frame, and the inner insertion nest can be inserted into or pulled out of the frame. A feeding opening is formed in the upper wall of the inner inserting nest, a drain outlet is formed in the lower wall of the inner inserting nest, and the nest is arranged below the breeding water level of the breeding pond body. The invention further provides a using method of the special pond, the special pond is easy and convenient to operate and manage, the production cost is greatly reduced, and the survival rate, the mating rate, the spawning rate and the hatching rate of parents are remarkably increased.

The utility model relates to the technical field of breeding equipment, in particular to a chicken breeding incubator which comprises an incubator body and an incubator door hinged to the front face of the incubator body, an inner cavity corresponding to the position of the incubator door is formed in the incubator body, and an incubation mechanism capable of turning over multiple sets of eggs at the same time is fixedly arranged at the bottom of the inner cavity. An adjusting mechanism for placing eggs with different sizes is mounted on the hatching mechanism; the hatching mechanism comprises two fixing frames fixedly connected to the bottom of the inner cavity, a transmission assembly is installed on the fixing frame close to the box door, the transmission assembly is in transmission connection with one ends of a plurality of turning rollers, and the two ends of the turning rollers are rotationally connected into the two sliding blocks respectively; according to the chicken breeding incubator, the transmission assembly is used for driving the multiple turning rollers to rotate in the same direction, so that eggs can be turned in the hatching process, the effect of synchronously turning the eggs is achieved, the hatching rate of the eggs and the breeding benefits can be improved, and the distance between the two turning rollers can be adjusted so that the eggs of different sizes can be conveniently placed.

The invention provides an omphisa fuscidentalis hampson breeding method and belongs to the technical field of omphisa fuscidentalis hampson The method comprises the following steps: firstly, searching a provenance bamboo with omphisa fuscidentalis hampson in a bamboo cavity, collecting the provenance bamboo, putting the provenance bamboo into an eclosion box, controlling certain conditions, enabling the omphisa fuscidentalis hampson to eclode and lay eggs, transferring the omphisa fuscidentalis hampson onto the bamboo shoot wall of a bamboo shoot in a field bamboo forest after the color of the omphisa fuscidentalis hampson turns dark brown, incubating the transferred omphisa fuscidentalis hampson into larvae, and enabling the larvae to enter the bamboo shoot cavity through biting holes, after the bamboo shoots are cultured for 55-63 days, the bamboo pests in the bamboo shoot cavities are collected. The breeding method is easy to operate and high in controllability, the eclosion amount and the egg laying amount of the omphisa fuscidentalis hampson are increased, the hatching rate of the transferred egg masses is high, the yield of the bred omphisa fuscidentalis hampson is high, and economic benefits are high.

The present invention belongs to the technical field of poultry hatching, and specifically refers to a shell-breaking device for improving the hatching rate of eggs, including a support assembly, a first rotating assembly, a second rotating assembly, and a controller. By setting an outer support cylinder and an inner support cylinder, the inside of the device is divided into a central hatching area and a surrounding auxiliary egg-breaking area. Eggs that cannot successfully hatch by themselves can be placed in the auxiliary egg-breaking area, and the eggs are assisted in shell-breaking by the auxiliary shell-breaking assembly. After the auxiliary shell-breaking, the eggs can enter the hatching area under the push of the first electric push rod for subsequent hatching operations, which effectively improves the hatching rate of the eggs; the detection assembly identifies and detects the position of the chick pecking the shell on the surface of the egg through a laser detector, and pushes the auxiliary shell-breaking hook down through the second electric push rod, so that the auxiliary shell-breaking hook breaks the edge of the crack, increases the edge area of ​​the crack, thereby reducing the pressure of the chick pecking the shell, and helps the chick to successfully hatch the shell.

The present application relates to the field of animal embryo engineering technology, and provides a method for improving the development ability of bovine IVP embryos. In the production of bovine in vitro embryos, by adding PAPPA, ergothioneine and selenocysteine to the bovine oocyte in vitro maturation culture solution, early embryo culture solution, late embryo culture solution, freezing solution and thawing solution, the in vitro maturation performance of oocytes and the development performance and vitality of the subsequent obtained embryos can be effectively improved. Studies have shown that after adding the above additives, the maturation rate of oocytes, the cleavage rate, the blastocyst rate of embryos, and the freezing survival rate, the hatching rate and the ATP content of embryos after freezing preservation are significantly improved, which has important application value.

The application provides an artificial breeding method of Onychostoma wujiangense, and belongs to the technical field of aquatic animal breeding. The artificial breeding method of Onychostoma wujiangense comprises the steps of parent fish classification, parent fish cultivation, artificial parturition induction, natural insemination, artificial insemination, fertilized egg hatching, larva cultivation and juvenile fish cultivation. The parturition induction agent is reasonably matched, the parturition induction injection time is accurate, the parturition induction rate, the fertilization rate and the hatching rate are improved, and the parent fish damage is small. The application also clearly defines the feeding methods at different stages of seed cultivation, improves the survival rate of Onychostoma wujiangense seed cultivation stage, and lays a technical support for the artificial breeding of the endangered species Onychostoma wujiangense.

The invention relates to a grouper crossbreeding method. The method comprises the four steps of parent breeding, temperature-sensitive domestication, artificial spawning and insemination, incubation and fry breeding, specifically, cold water-based clear water stone spots and hot water-based brown spot stone spots are selected as parents, the clear water stone spots are used as female parents, the brown spot stone spots are used as male parents, and the middle water temperature is adapted through gradient temperature-sensitive domestication; stress-resistant feed containing hilsa herring egg source peptide and haematococcus pluvialis astaxanthin ester and a temperature-sensitive blender are matched, a reproductive care agent is supplemented to strengthen sperm and egg performance, and normative spawning induction, insemination and graded cultivation processes are adopted. According to the method, the problems of poor water temperature adaptation and low hatching rate of grouper hybrid sperms and eggs in different temperature areas are solved, the wide-temperature property of filial generations is improved, the method adapts to the water temperature of 18-28 DEG C, the hatching rate, the fry survival rate, the adult fish survival rate and the average weight of single fish are remarkably improved, and technical support is provided for industrial application.

The invention discloses a folic acid nanoemulsion capable of increasing the egg laying rate of protaetia brevitarsis and application of the folic acid nanoemulsion. The folic acid nanoemulsion comprises the following components in percentage by mass: 0.003%-0.005% of folic acid, 0.02%-0.1% of sodium bicarbonate, 3%-4% of ultrapure water, 16%-19% of a surfactant, 6%-9% of a cosurfactant and 67.895%-74.977% of an oil phase. The method has the remarkable effects that the folic acid content ranges from 0.02 mg / kg to 0.05 mg / kg in a feed mixing and administration mode, the single female egg laying rate of the protaetia brevitarsis can be increased by 5.72% to 25.29% when the protaetia brevitarsis is fed to female protaetia brevitarsis, and nutrition preparation support is provided for increasing the egg laying rate in the large-scale breeding process of the protaetia brevitarsis.

The present invention provides a method for debonding fertilized eggs of marine fish, comprising the following steps: S1. immersion and disinfection of fertilized eggs; S2. preparation of debonding liquid; S3. debonding of fertilized eggs; S4. separation and cleaning of fertilized eggs. Before debonding fertilized eggs of marine fish, the present invention first uses a composite Chinese herbal medicine preparation to soak the fertilized eggs of marine fish to kill bacteria and fungi in the fertilized eggs of marine fish. Avoid infection of fertilized eggs of marine fish during the debonding process, thereby improving the subsequent hatching rate of fertilized eggs of marine fish. The present invention uses a debonding agent composed of a specific proportion of disodium hydrogen phosphate, water, a composite enzyme solution, and cystine to debond fertilized eggs of marine fish. The debonding agent of the present invention is mild and non-irritating, and can effectively avoid damage to fertilized eggs of marine fish caused by mechanical vibration and friction in traditional debonding methods.

The utility model relates to the technical field of shrimp seed hatching, in particular to a high-survival-rate shrimp seed hatching device which comprises a breeding box body, an internal assembly is arranged at the top of the breeding box body, and a rotating assembly is arranged at the bottom of the breeding box body. Meanwhile, a heating plate is electrically connected with a temperature sensor, so that when the temperature in the incubator is too low, the temperature sensor can start the heating plate to heat the interior of the incubator, the incubator is connected with the culture box body through cooperation of fixing bolts and nuts, and then disassembly is facilitated, shrimp seeds are easily taken out, or the interior is cleaned; by arranging a rotating assembly, in order to avoid accumulation of the shrimp seeds in the incubator, a driving motor is started, then the incubator in the incubator is stirred through a rotating rod, the situation that the shrimp seeds die after losing activity easily is avoided, and then the hatching rate of the shrimp seeds in the incubator is increased.

This utility model discloses a black soldier fly egg collection device, comprising a frame, wherein an attraction lamp or attraction box is provided in the frame, and an attraction agent is provided in the attraction box. Multiple collection troughs are arranged sequentially from top to bottom within the frame, with a spacing of 8mm to 15mm between adjacent collection troughs. Each collection trough consists of upper and lower collection strips, with a spacing of 2mm to 4mm between the upper and lower collection strips. The sequentially arranged collection strips facilitate the female black soldier fly to climb on both sides and lay eggs in both directions. The 8mm to 15mm spacing between adjacent collection troughs ensures that the female black soldier fly lays eggs only within the space of the collection trough, thereby improving the egg hatching rate.

The invention belongs to a freshwater fish breeding technology, and particularly relates to a phoxinus lagowskii large-scale breeding method which sequentially comprises the following steps of parent selection, parent breeding, artificial spawning induction, artificial insemination and juvenile fish hatching. Injecting a spawning induction agent, which is composed of 500-1000 IU of chorionic gonadotropin (HCG) per kilogram of fish body weight, 5-10 micrograms of luteinizing hormone releasing hormone analogue (LRH-A2) per kilogram of fish body weight and 1-2 mg / kg of domperidone (DOM) per kilogram of fish body weight, into the bred parent from pelvic fins; the injection dosage of the parent female fish is two times that of the parent male fish. The method solves the problems that phoxinus lagowskii parents are asynchronous in gonad development, do not lay eggs and are not concentrated in egg laying, the induced spawning rate is increased to 98% or above, and meanwhile the production time is shortened. By means of manufacturing and using the artificial fish nest, the natural hatching state of phoxinus lagowskii roes is simulated, damage to the roes in the debonding process is reduced, and the fertilization rate and hatching rate of the roes are increased to 96.8% and 92.1% respectively.

The invention discloses a disinfectant for in-vitro incubation of procambarus clarkii embryos and a preparation method and application thereof. The disinfectant comprises at least one of a first disinfectant, a second disinfectant and a third disinfectant, the first disinfectant comprises sodium chloride, trehalose, sodium dodecyl benzene sulfonate and water; the second disinfectant comprises at least one of an essential oil mixed solution, a six-herb mixed solution and a six-flower mixed solution; the essential oil mixed liquid comprises thyme essential oil, sage essential oil, blue eucalyptus essential oil, mint essential oil and water; the six-herb mixed solution comprises felwort, houttuynia cordata, caryopteris incana, humifuse euphorbia herb, liquorice, lavender and an ethanol solution; the mixed liquor of the six flowers comprises honeysuckle flowers, calendula flowers, flos florae, safflower, lilac flowers, rose flowers and an ethanol solution; the third disinfectant is prepared from polysorbate-80, astaxanthin, glycine and water. The disinfectant comprises the first disinfectant, the second disinfectant and the third disinfectant which are mutually promoted and have synergistic interaction, and the obtained disinfectant is non-toxic, harmless, green, environment-friendly, good in disinfection effect, good in embryo protection effect, good in stability, convenient to use, capable of replacing an existing formaldehyde disinfectant, high in hatching rate and good in emergence rate.

The high-precision egg feeding tool comprises a connecting frame, a rotating piece, a rotating disc and an egg storage piece, the rotating piece is installed on the connecting frame, the rotating disc is installed at the rotating end of the rotating piece, and a plurality of egg containing holes are formed in the peripheral face of the rotating disc at equal intervals; the egg storage piece is installed on the connecting frame and provided with an egg outlet, and the egg outlet is right opposite to the peripheral face of the rotating disc. By means of the arrangement, the function of quantitative and stable egg feeding can be achieved, meanwhile, eggs in a greenhouse can be evenly distributed during egg feeding, and then the hatching rate and the survival rate of the eggs are increased.

The invention discloses an egg hatching rate prediction model construction method and a hatching rate characteristic evaluation and prediction method. The egg hatching rate prediction model construction method comprises the following steps: respectively acquiring a characteristic data set and hatching rates for a plurality of egg batches; the feature data set contains a plurality of feature data corresponding to biological features, environment features and hatching equipment features; performing data preprocessing and merging on the feature data set to obtain an original sample set; data samples with the hatching rate lower than a hatching rate threshold value in the original sample set are augmented to obtain an augmented sample set; after an original prediction model is built, training is carried out based on the augmented sample set and the hatching rate of each data sample in the augmented sample set, and a trained egg hatching rate prediction model is obtained. The method is high in prediction accuracy and high in interpretability, can effectively solve the problems of prediction deviation and overfitting easily occurring in a single model when a sample is unbalanced in traditional machine learning, and can perform interpretability analysis on a prediction result of the hatching rate to support accurate management of the whole hatching period.

The present invention discloses a method for cultivating greater amberjack seedlings in an indoor cement pool, comprising the following steps: fertilized egg hatching, environmental regulation, bait and feeding methods, net-pulling training, and fish screening and pool division. The method adopts cement pool cultivation, and through water quality regulation, water flow environment regulation, and light environment regulation, selects nutritious oyster fertilized eggs instead of rotifers as the starter bait for fry, and through step-by-step net-pulling training, and cultivating seedlings of different specifications in different pools, the hatching rate of greater amberjack fertilized eggs and the survival rate of newly hatched fry are improved. The present invention also provides the use of the above method in improving the hatching rate of greater amberjack fertilized eggs, improving the weight, total length, survival rate, and yield rate of greater amberjack fry, improving the expression of genes related to muscle growth and development of greater amberjack, improving the microbial species coverage, richness, and diversity of greater amberjack intestinal flora, regulating the composition structure of greater amberjack intestinal microbial colonies, and increasing the proportion of beneficial bacteria in the flora or improving intestinal health.

The utility model discloses a macadamia nut dichocrocis punctiferalis spawning and hatching device which comprises a shell, a transparent cover with an air hole is arranged at the top of the shell, a handle is arranged on the outer side of the shell, and a guide tray with an air hole and an automatic humidifying mechanism capable of automatically adjusting humidity are arranged in the shell. At least one guide box is arranged on the guide tray, and a layer of gauze or degreasing cotton is placed on the inner wall of the guide box. The guide tray is detachably matched with the shell, so that fruits or attractants for attracting female dichocrocis punctiferalis adults to lay eggs are conveniently added into the guide box, and the device is convenient to clean; female dichocrocis punctiferalis adults are guided to enter the guide box for oviposition, so that a position suitable for oviposition can be selected according to provided fruit types or attractants for centralized oviposition, and observation during incubation is facilitated by matching with a transparent cover; the detachable automatic humidifying mechanism can automatically monitor the internal environment of the device and conduct humidifying, the problem that existing humidity adjustment is not accurate is solved, and therefore the hatching rate of dichocrocis punctiferalis is increased.

The invention belongs to the technical field of aquaculture, and discloses a method for increasing the in-vitro culture hatching rate of big algae and shrimp embryos, which comprises the following steps: (1) preparing adult shrimp culture water; (2) preparing parent shrimp feed; (3) culturing big algae and shrimps; (4) preparing embryo eluent; (5) embryo in-vitro method; (6) hatching: hatching for 24 hours at the room temperature of 25 + / -1 DEG C, then disinfecting again, changing water, and removing bad eggs at regular time. According to the method disclosed by the invention, the fertilized embryos of the big algal shrimps are subjected to in-vitro incubation, so that the defects caused by direct egg-carrying incubation of the female shrimps are reduced, the limitation of egg-carrying incubation of the female shrimps is eliminated, the incubation rate of in-vitro culture of the big algal shrimps is increased, the survival rate of membrane-ruptured larvae of the big algal shrimps is improved, and a good application technology is provided for the industry; and an effective means is provided for large-scale directional breeding.

The utility model relates to the technical field of freshwater fish culture, and particularly discloses a fish hatching device which comprises a base, a hatching box is installed on the base, and a water collecting tank is arranged on the periphery of the hatching box. The water spraying assembly is arranged at the top of the incubator and comprises a supporting frame connected with the incubator, and the driving motor is installed on the surface of the supporting frame; the water spraying assembly comprises a water spraying pipe and a supporting seat, the water spraying pipe is fixedly connected with an output shaft of the driving motor, a water inlet end is arranged on the surface of the water spraying pipe, one end of the supporting seat is rotationally connected with the water inlet end, and the other end of the supporting seat is fixedly connected with an external water pipe. The conical part is arranged, so that sewage can be conveniently discharged when the interior of the barrel is cleaned before roe hatching, fries can be conveniently put after roe hatching, and when a water source in the hatching box is continuously increased, the water source overflows from the top of the cylinder part, so that the flowability of the water source in the hatching box is kept, and the roe hatching rate is effectively increased.

The invention provides a low-temperature-high-temperature stimulation membrane rupture and double-high water temperature tolerance threshold experiment method for fertilized eggs of schizothorax fishes in a strong daily temperature difference water area. The method comprises the following steps: step 1, determining daily extremum and amplitude variation of hatching water temperature of the fertilized eggs of natural reproduction of the schizothorax fishes; 2, daily variable-amplitude incubation water temperature is achieved; step 3, membrane rupture key water temperature control; 4, performing large-scale membrane rupture through low-temperature-high-temperature stimulation; and step 5, determining a double-high water temperature tolerance threshold. According to the method, by determining the daily extreme value and variable amplitude of the hatching water temperature of the naturally-bred fertilized eggs, the hatching water temperature experiments with variable amplitude in different days are designed for hatching the fertilized eggs, and the natural hatching environment with the large daily water temperature difference of the Qinghai-Tibet Plateau river under climate changes is simulated; through an indoor fertilized egg water temperature gradient experiment, a low-temperature-high-temperature stimulation membrane rupture mechanism, a double-high water temperature tolerance range and a threshold value of the key fish schizopygi nojirioides from the Yangtze River source are found, and scientific support is provided for protection and repair of fish resources from the Yangtze River source under the background of subsequent climate warming.

The invention provides a method for artificial insemination and fertilized egg incubation of wild schizothorax parvus, which comprises the following steps: on the basis of ascertaining the biological characteristics of the wild schizothorax parvus through tracking and monitoring for many years, capturing sexually mature male and female parent fishes, carrying out artificial insemination after sperm and egg treatment, obtaining fertilized eggs, and carrying out micro-running water incubation, so that the fertilization rate reaches 85%, and the incubation rate reaches 70%. The artificial insemination of the rare and endangered indigenous fish Schizothorax parvum in the Luagu Lake and the trial culture of the first filial generation of fish fries are successfully carried out for the first time in China, the blank in the field is filled, the artificial domestication, breeding and culture of the Schizothorax parvum are completely feasible and are preliminarily successful, and the specific fish population of the Luagu Lake is recovered, developed and cultured, so that the economic benefits of the Luagu Lake and the Schizothorax parvum are improved. High-quality offspring seeds are provided, and the method has important significance on lake enhancement and release and improvement of fishery economic benefits.

The invention discloses a tussah egg incubator. The tussah egg incubator comprises an incubator body. A ventilation opening is formed in the upper portion of the incubator and provided with an electric opening and closing exhaust window and an exhaust fan, a compressor, a heater and a humidifier are arranged at the bottom of the incubator, a uniform-temperature fan is embedded in the inner wall of one side of the incubator, a water bucket is arranged outside the incubator and communicated with the water tank through a connecting pipe, and a buoyancy switch is arranged at the water outlet end of the connecting pipe. The incubator is provided with a control processor with an operation panel; and a temperature sensor and a humidity sensor are arranged in the incubator. According to the tussah incubator, acquired data are processed through the control processor, corresponding equipment is started when temperature adjustment or humidity adjustment is needed, and timing ventilation is carried out, so that the required temperature, humidity and ventilation quantity are always kept in an incubation storehouse, the incubation rate of young silkworms is increased, and the incubation efficiency of the young silkworms is improved. The hatched young silkworms are robust in body type, active and rapid in action and enhanced in autoimmunity, and the survival rate of the strong silkworms is increased.

The utility model discloses a kind of based on double-acting cylinder's ricefield eel fertilized egg hatching device, it is related to aquaculture equipment technical field, by hatching frame, lifting frame, hatching net, air compressor, PLC controller, air pipe, signal line, two-position five-way solenoid valve composition, lifting frame is located on hatching frame, hatching net is connected in the lower portion of lifting frame and is in hatching barrel, air pipe is connected two-position five-way solenoid valve after from air compressor, then connect double-acting cylinder, signal line connects PLC controller and two-position five-way solenoid valve and then controls movement action.The device can be automated, realize fertilized egg to carry out sustained, uniform lifting, effectively promote dissolved oxygen, prevent water mould, to improve hatching rate.

The utility model relates to the technical field of tilapia hatching, in particular to a reliable tilapia breeding and hatching device which comprises a hatching box, a turning device, a cleaning device and a moving device, a supporting table is installed on the bottom wall of the hatching box, and supporting legs are installed at the four corners of the bottom end of the supporting table. The turning device comprises a first motor, a driving rotating shaft, a driven rotating shaft, a conveying belt and a turning net, the conveying belt is obliquely arranged in the incubator, and the conveying belt drives the turning net to circularly lift and put down water to form continuous movement, so that the hatching environment of roes is simulated; meanwhile, a good simulation effect is achieved for a large incubator, the water flow movement efficiency is improved, impurities floating in the incubator can be cleaned through a cleaning device, the incubator can be moved through a moving device, sufficient oxygen and nutrition can be provided for roes through water flow movement, even heating of the roes can be promoted, and the roes can be heated more evenly. The hatching speed is accelerated.