195 results about "Intensive culture" patented technology

The invention relates to a mixed feed for mixed aquaculture of freshwater fishes. The mixed feed includes a basic material. The basic material includes fish meal, soybean meal, wheat, cottonseed meal, rapeseed meal and soybean oil, and also includes by weight: 1.5-2.2% of calcium phosphate, 1.5-2.2% of bentonite, 1.5-2.2% of zeolite powder, 0.1-0.25% of choline chloride, 0.1-0.25% of salt, 0.02-0.05% of compound probiotics, 0.04-0.08% of vitamin C, 0.005-0.02% of allicin, 1.0-2.0% of compound vitamins and 1.0-2.5% of compound mineral salts. The feed is suitable for intensive culture or polyculture of megalobrama amblycephala, black carp, grass carp, common carp and the like, so that the freshwater fish feed is generalized, the return rate of the feed is improved, the aquaculture water eutrophication and fish liver and gallbladder diseases are reduced, the output of unit aquatic products is raised, and the economic benefits of farmers are significantly improved.

An three-dimensional intensive culture technique of shrimps, crabs and shellfish in a seawater pond comprises the following steps: the pond is cleaned up before stocking, the bottom of the pond is solarized, a central canal and a circular canal are excavated, and feed water is disinfected and sterilized with medicines; fresh seawater is fed, the water quality culture, fertilization and algae culture are carried out, a lifting device for a swimming crab breeding cage is prepared, and lines are parallel set up at the two ends of the culture pond with each line spaced 50cm; and 30cm higher than the surface of the water, the cage is suspended every 50cm, the inside of the cage is provided with fine sand, the outside of the cage is sheathed with a plastic netting, benthonic seashells are put into the cage for the first, and the stocking density is 30 benthonic seashells per mu, then the stocking of prawns is carried out, and the stocking density is 5000 prawns per mu. By adopting the three-dimensional multi-species hybrid culture technique of shrimps, crabs and shellfish in a seawater pond, the water layers of the stocking ponds can be fully utilized, the utilization rates of each water layer of the stocking ponds, stocking devices and manpower are further improved, the water purification capacity of the seashell can be fully utilized, and the swimming crabs are suspended in a cage, thus avoiding cannibalism and catching and killing the shrimps and seashells in the same pound; Furthermore, the three-dimensional intensive culture technique provides adhesion and sheltering objects for prawns, and achieves the purposes of improving yield and increasing economic benefits.

The invention provides a high-efficient ecological seedling-raising method of blue crabs. The high-efficient ecological seedling-raising method comprises the following steps of: selecting parent crabs after artificial breeding, adopting circulating water to keep the water temperature in an overwintering pond, feeding clam worms, ruditapes philippinarum, squid and other baits for performing intensive culture on the parent crabs, utilizing a single-crab and single-pond mode to perform pond arrangement, and laying disinfection sea mud at the bottom of a larval rearing tank for simulating a sea natural ecological environment. By using the method disclosed by the invention, vertical transmission of diseases can be avoided, the use of coal is reduced, and energy conservation and emission reduction are realized; and the baits can be reasonably matched for promoting the healthy development of embryos, and self-mutilation of larvae can be reduced for improving the yield and the quality of seedlings. According to the method disclosed by the invention, the yield of the seedlings of the blue crabs can be improved by 30-50%, the outdoor farming survival rate can be improved by 10-15%, and the method can be widely applied to offshore sea waters and has significant economic benefits.

The invention discloses a river crab cultivation method. The river crab cultivation method comprises preparing a cultivation site; irrigating water 15 days before crab seeds are put into the cultivation site and enabling the height of a water surface to keep between 10 and 12 cm; sterilizing the cultivation site; pouring water to enable the height of the water amount to be increased to 25 to 30 cm 8 to 10 days before crab seed putting, sterilizing the cultivation site through quick lime emulsion and oxygenating a cultivation pond through an oxygenating machine 24 hours after the sterilization; planting alligator weeds on the water surface; immersing the crab seeds through salt solutions with the concentration to be in 3.5 to 4.5 % for 8 to 10 minutes before the crab seeds are put into the cultivation pond and feeding fodder after the crab seeds are put into the cultivation pond; performing daily feeding and management of the crab seeds in the growing period, namely feeding bean curd, small trash fish cream and adult brine shrimps at the initial stage after the crab seeds are put into the cultivation pond, feeding bean cakes and fish cream after the crab seeds grown into baby crabs and feeding mixed type fodder at the intensive culturing stage of the baby crabs. The river crab cultivation method has the advantages of avoiding seed loss, improving the survival rate of the river crabs, reducing cultivation costs and improving economic benefits due to the fact that the crabs which are cultivated in green houses are fed in combination with reasonably matched fodder.

An indoor-outdoor multi-crops polyculture method for shrimp, soft-shelled turtle and fish includes building an upper greenhouse culture pond and a lower outdoor intensive culture pond, and using a transfer pipe to communicate the upper greenhouse culture pond and the lower outdoor intensive culture pond; throwing desalted giant tiger prawn in the upper greenhouse culture pond in mid-March, and keeping water temperature at 25 DEG C; pouring water into the lower outdoor intensive culture pond prior to throwing in silver carp, bighead carp and Chinese soft-shelled turtle for breeding in early May; after seedlings grow to about 5cm 50-60 days after culture of the giant tiger prawn in the upper greenhouse culture pond, transferring young shrimps in the upper greenhouse culture pond into the lower outdoor intensive culture pond for breeding through the transfer pipe, harvesting first crop from late June to early July; and harvesting the silver carp, the bighead carp and the Chinese soft-shelled turtle in November to December after continuous three-crop culture of the giant tiger prawn. The indoor-outdoor multi-crops polyculture method for shrimp, soft-shelled turtle and fish breaks through the bottleneck of existing culture production and benefit.

The invention provides a constructing method of a simple ecological leech culture pond. The method comprises the following steps: digging a dry soil culture place to depth of 60-70 cm underground so as to form a basic culture pond; compacting a pond bottom and pond walls; constructing a patrol passage and steps; making a screen box, which is as big as the basic culture pond, by using screens; driving a pile in the constructed culture pond; flatly hanging the screen box on the pile to form a culture screen box; putting hollow bricks at edge parts in the culture screen box; planting underwater grasses and / or water grasses in the culture pond; mounting a sunshade screen in the pond; mounting a bait feeding platform for the pond; and finishing the construction of the culture pond for stocking leeches. The constructing method provided by the invention has the advantages of more reasonable design, convenience in management, simplicity and rapidness in operation, high efficiency and natural property; and by using soil pond+screen box+vegetation as a constructing method, the investment can be reduced. The constructing method provided by the invention is integrated with the advantages of water coil pond culture, soil pond culture and big pond screen box culture, is convenient to manage and achieves high-density intensive culture conditions, so that scientific and ecological culture with high yield and high efficiency is achieved and the leeches can also return to fields according to needs.

The invention belongs to the aquaculture technology field, in particular relating to an artificial control method for the improvement of female finless eel parent fecundity. The finless eel has special physiological phenomena and sex reversal characteristics with small size, large egg granules and low fecundity. Thus the scale finless eel propagation is subject to the restrictions of the female finless eel parent self-conditions. In the invention, through the artificial simulation of female finless eel culture and development environment, the rational selection of parental finless eels, the reasonable stocking density arrangement, the appropriate feeding and management methods, the pre-oviposition period intensive culture and the artificial control measures, the female finless eel fecundity in natural state can be enhanced to the fecundity up to 450 to 1300 grains each and the 680 grains average level from 170 to 650 grains each and the average 260 grains. Therefore, the average fecundity of finless eel is improved by 161%.

A shrimp compound feed and a preparation method thereof relate to a feed. The invention provides the shrimp compound feed with balanced nutrition and high quality and the preparation method thereof. The raw materials are as follows: 7 percent-12 percent of fish meal, 15 percent-25 percent of soybean meal, 5 percent-10 percent of corn protein powder, 2 percent-5 percent of beer yeast, 5 percent-15 percent of chicken powder, 6 percent-12 percent of meat bone powder, 2 percent-6 percent of spray-dried blood meal, 3 percent-5 percent of squid visceral meal, 4 percent-8 percent of shrimp bran powder, 1 percent-2 percent of soybean lecithin, 1 percent-2 percent of fish oil, 1 percent-2 percent of calcium dihydrogen phosphate, 1 percent-2 percent of feed additive premix and the balance of wheat middling. The various raw materials are smashed, screened, mixed and granulated. The sources of animal and plant protein raw materials are wide, the yield is high, and the stable supply can be ensured; the reasonable match of the fish meal and the soybean meal can reduce the protein content of the fish meal in the shrimp feed to be lower than 9 percent or reduce the using proportion of the fish meal to be lower than 12 percent; the shrimp compound feed can improve the feed palatability, improve the feed intake of shrimps and be used for the intensive culture of the shrimps.

A method for obtaining batch American shad fertilized ova is characterized in that a plastic greenhouse cement pond is used for reserve parent overwintering culture, local fresh water is used, the salinity is increased gradually during water changing till the final salinity reaches 12%o to 15%o, the water temperature for overwintering culture is kept at more than 8 DEG C, and bait is NO.3 feeds of commercial freshwater fish expanded pellet feeds; parent spring intensive culture is between the end of March and the beginning of April, and as the temperature rises, two sides of the plastic greenhouse are used for ventilation, plastic film is dismounted, shading film is added, and the water temperature in a cement pond is kept between 16 DEG C and 18 DEG C; the salinity is reduced gradually each time water is changed, and the salinity is reduced by 2%o to 3%o each time till the final salinity reaches the salinity of local river water; parents for promoting spawning are selected to be put in curved spawning promoting channels between the middle of May and the beginning of June, the stocking density of the spawning promoting parents is between 0.8 shad / m<2> and 1 shad / m<2>, a natural spawning fertilization mode is used, the fertilized ova are collected in time after the parents spawn, the operation is performed in water, and the fertilized ova are moved to an incubating pond after counting.

The invention relates to an artificial propagation method of yellow catfish fry, which is characterized in that: sexually mature yellow catfish over three years are chosen as the parent fishes; the female and male ratio is 3:1; a plurality of barrels are arranged in a spawning pond as fish nests; parent fish density in the spawning pond is 1 to 2 groups / m2; each group of parent fishes uses a barrel; the sand with a thickness ranging form 1cm to 5cm is arranged at the bottom of the barrel for the debonding of fish eggs; in spawning season, exogenous hormone is injected to the basal behind the dorsal fins of the parent fishes to induce ovulation and spermiation; an inversed conical container with smooth inner wall is used as the hatching barrel; fertilized eggs are arranged in the hatching barrel for hatching in flowing water; the dissolved oxygen in the water of the hatching barrel is larger than 5.5 mg / L; when hatching is over, fry is arranged in a cement pool for temporary rearing for 40 to 70 hours, then the fry is packaged in plastic bags with water and oxygen. The artificial propagation method of yellow catfish fry has the advantages that, well developed yellow catfish fry can be acquired; the operation is simple; the utilization rate of parent fishes is high; scale production of yellow catfish fry can be realized, and the invention has significant meaning for the intensive culture of yellow catfish.

The invention relates to a microbial purification facility and a method for the water quality of an intensive culture system of a pond. The facility comprises an aeration filter tank, a non-aeration filter tank, a water quantity regulating valve and all connecting water pipes. Corallite, filtering cotton and bamboo joints are filled in the aeration filter tank, and the bottom in the tank is provided with radial water outlet pipes; and the non-aeration biological filter tank is an earth ditch the surface of which is covered with a plastic membrane, and a filtering material is filtering cotton which is hung transversely. In the invention, the quantity of water entering the aeration filter tank is regulated according to the mature condition of a biomembrane of the aeration filter tank and the pollution degree of the wastewater of a culture pond; nutritive salt concentrate is added into a filling opening of nutritive salt, and the optimal proportion of C:N:P of influent water is kept; beneficial bacteria attached to the filtering material of the aeration filter tank can decompose and transform injurants generated in the culture process; and then, EM bacteria and native bacteria lost in the aeration filter tank are fully utilized by the non-aeration filter tank, and the injurants are continuously decomposed and transformed. The invention has high purification efficiency, low cost and convenient material taking and processing and can be widely applied to the purification of the water quality of the intensive culture of ponds for briny and fresh water fishes, shrimps and crabs.

A coilia ectenes step type breeding method comprises the nine steps of reserved parent pool simulated ecological cultivation, parent pool intensive culture, parent selection for induced spawning, parent induced spawning, natural insemination, germ cell collection, germ cell incubation, indoor intensive fry rearing in a cement pool and large-scale fry culture in an outdoor pool. The method is characterized in that filial-generation coilia ectenes adult fishes which are more than 2 years old and cultured by manpower are used as reserved parents for artificial propagation, and a natural ecology cultivation mode is simulated; the selected parents are transported and placed in an induced spawning pool, after parent induced spawning is conducted, the germ cells are collected, counted and transferred to an incubation pool, after the germ cells are collected, the germ cells are placed in the incubation pool with water, fries open the mouths 5-6 days after membrane rupture is conducted, yolks and freshwater rotifers which are filtered through a 80-mesh silk net are fed to the fries, after the fries are cultivated for 15 days, the fries are divided to different pools, and when the fries are as long as 20-30 mm, the fries are placed to outdoor pools to be cultivated.

A shrimp compound protein feed and a preparation method thereof relate to a feed. The invention provides the shrimp compound protein feed which has relatively balanced nutrition, higher quality and can be used as a fish meal substitute and the preparation method thereof. Raw materials and the contents thereof according to the weight percentage include: 22 percent-28 percent of corn protein powder, 28 percent-35 percent of chicken meal, 26 percent-33 percent of meat and bone meal and the balance of spray-dried blood meal. The corn protein powder, the blood meal, the chicken meal and the meat and bone meal are mixed, smashed and screened, thereby obtaining the shrimp compound protein feed. The content of crude protein and crude fat is equal to the content of the fish meal, compared with soybean meal and various compound protein raw materials, the balance of essential amino acids is significantly improved, and the nutritional value is high; the sources of animal and plant protein raw materials are wide, the yield is high, and the stable supply can be ensured; the shrimp compound protein feed can improve the feed palatability, be used as the fish meal substitute, be used for feed enterprises to produce extensive or intensive culture shrimp compound feed, and reduce the feed cost.

The invention relates to a method for breeding parent fish of paralichthys lethostigma. The method comprises desalination culture and salinization culture of standby parent fish as well as intensive culture of the parent fish. Specially made feed is fed during the intensive culture of the parent fish, wherein, the weight percentages of main materials in the feed are the following: 30-40 percent of Gobiidae or ammodytes, 15-20 percent of cuttlefish or sleeve-fish, 15-20 percent of sea cucumber and 20-30 percent of bastard halibut powder; the weight percentages of additives accounting for the main materials are the following: 1-2 percent of parent fish hardening agent, 0.4 percent of Vc and 0.4 percent of Ve; the feed particle size is 9mm-11mm. During light and temperature regulation and control, four bulbs are suspended over each parent fish culture tank with two bulbs of 60W and two bulbs of 150W suspended on the cross to obtain even light; water temperature is raised to 17 DEG C from 14.5 DEG C. Based on biological characteristics of wide optimum salinity of the paralichthys lethostigma, the invention makes use of F1 replacing fingerlings to culture standby parent fish in fresh water after desalination, and after salinization the standby parent fish is intensively cultured to obtain sexually mature egg-laying parent fish, thereby effectively solving the problem of high cost, restriction, poor parent quality and low survival ratio of introduced paralichthys lethostigma parent.

The invention belongs to the technical field of nursery stock sexual propagation, and relates to a seedling growing method for golden bell trees which are the novel characteristic flower-viewing landscape architecture trees. The high-quality and efficient golden bell tree seedling growing method comprises the steps of collecting seeds at the right moment, sowing the seeds while the seeds are collected, conducting thin film coverage, cultivating bud seedlings, cultivating bag seedlings, conducting field planting in a field at the right moment when the plant height is more than 30 cm, building a framework, building up stems, and conducting intensive culture. According to the high-quality and efficient golden bell tree seedling growing method, the golden bell tree seedling stand large-age seedling three-stage-type high-quality and efficient propagation technology is provided, the golden bell tree seed biological characteristics are organically combined with the specific seedling growing technology, traditional container seedling culture and landscape architecture large seedling culture, the seed germination rate and the planting percent are remarkably improved, the nursery stock growth quality is remarkably improved, the culture period of large seedlings for landscape architecture is remarkably shortened, the nursery stock yield and economic benefits can be greatly increased, and the high-quality and efficient golden bell tree seedling growing method can be directly applied to the landscape architecture construction engineering.

The present invention provides a method for culturing fish with net cage. Firstly the whole framework of net cage layout is set according to the condition of inland river water and reservoir area water. A frame is installed on the framework. Then a large net cage is installed on the framework. Filter economic fish are cultivated in the large net cage. Finally intensive culture net cages are installed in the large net cage. Bait throwing type fishes are cultivated in the intensive culture net cages. The method for culturing fish with net cage according to the invention adopts the tridimensional inter-culturing mode of different water layers with the fishes with different food habits according to the ecological principle. The bait throwing type fishes are cultivated at the upper layer of the filter economic fish which can eat the excrement and residual bait of bait throwing type fishes. The effects of pollutant discharge amount reduction and environment protection at the state that the cultivation effect of prior fish is guaranteed. The method of the invention also has the advantages of easiness, easy learning, strong adaptability and easy generalization.

The present invention belongs to aquaculture technology, especially is to introduce high-effective living-protective intensive culture technology for parent shrimp. The said technology includes the following steps: washing and disinfecting culture ponds and workshop, supplying water for culture ponds, adjusting temperature and salts, adjusting light intensity, disinfecting culture ponds water and parent shrimp, putting parent shrimps into culture ponds, management. Introduce high-effective living-protective intensive culture technology of the present invention is through physical, chemical, biological, pharmaceutical as well as various measures combined with the integrated technology method, it avoids the urgency of the new environment effectively for the introduction of parent shrimps, prevents diseases, improves the survival rate.

The invention discloses a method for controlling a white spot syndrome by culturing hybrid giant tiger groupers and marsupenaeus japonicas in a mixed mode. The method comprises the steps that marsupenaeus japonicas seeds with the overall length of 0.8-1.0 cm are put into a pond, the putting quantity is 70,000-80,000 per mu, the hybrid giant tiger groupers with the body length of 8-10 cm are put into the pond when the marsupenaeus japonicas seeds are cultured until the body length of each marsupenaeus japonicas seed is 4-5 cm, and the putting quantity is 10-15 per mu. According to the method, according to the life habits of the hybrid giant tiger groupers and the marsupenaeus japonicas, by putting the hybrid giant tiger groupers in the appropriate density and appropriate specification into the high-density intensive culturing pond of the marsupenaeus japonicas, occurrence of the diseased and dead marsupenaeus japonicas can be reduced in the marsupenaeus japonicas culturing process, a good ecological culturing environment is supplied to growth of the marsupenaeus japonicas, the survival rate of the marsupenaeus japonicas is increased, the incidence is decreased, the culturing success rate is high, and the method is suitable for development of scale culturing of the marsupenaeus japonicas in China.

The invention relates to an anti-season penaeus vanmamei factory culture method. The anti-season penaeus vanmamei factory culture method comprises the following steps: (1) selecting the site of a culture field, and designing a culture workshop and a penaeus vanmamei pond; (2) preparing before releasing young penaeus vanmamei; (3) temporarily culturing by putting the young penaeus vanmamei into the penaeus vanmamei pond; (4) managing in a growing period; and (5) harvesting. Anti-season penaeus vanmamei culture can be carried out in a northern area through the anti-season penaeus vanmamei factory culture method disclosed by the invention; compared with traditional culture, the anti-season penaeus vanmamei factory culture method is not limited by seasons and temperature and is capable of controlling the environmental conditions, such as temperature, illumination and dissolved oxygen, in a most proper penaeus vanmamei growing environment, preventing cross infection of pathogenic microorganisms and reducing disease occurrence; by means of high-density intensive culture, the yield is obviously increased; concentrated appearance of penaeus vanmamei on the market is avoided; the market supply is adjusted; the rural income is increased easily; simultaneously, culture is carried out by effectively utilizing the idle time in winter; and therefore, the utilization rate of land resources is greatly increased.

This invention relates to the field of cultivation, especially it is a kind of net cage for intensive culturing sillagos in water. In order to meet to the environment need of sillagos physiology, a smaller net cage 4 with taking several sillagos layers 7 is set in a bigger net cage 3 that is used to prevent the sillagos from escaping, and the largest net hole diameter of the net cage 3 is smaller than the body diameter of the smallest sillagos, and the sillagos layers 7 can be made of fishnet or non-slub fabric or others. The sillagoses can inhabit on any sillagos layer 7 according to their living needs, especially they can stay on the topside to breath. This invention provides a cultivation equipment matches with sillagos living characteristics. In the net cage, sillagoses can inhabit in places of different water depth and different water temperature. This equipment can be used in reservoir or river to intensive culturing sillagoses, and cultivation and catching is convenient, survival rate and output is high.

The invention discloses a method for processing and recycling aquaculture water in an intensive culture pond, which comprises the following steps: (1) performing oxygenation measures, and then gathering pollutants in a central sewage draining exit; (2) arranging a discharge pipe at the central sewage draining exit, wherein the discharge pipe is communicated with a gate of a drainage sluice; (3) pumping sewage in the pond from a pump pipeline by using pumping equipment; (4) separating the sewage by a foam separator; and (5) dealing with pathogens in the obtained clean water by an ozone generator and then discharging the clean water to the pond for recycling, collecting the obtained sewage and then carrying out biochemical treatment on the sewage, after the sewage is up to the standard, discharging the sewage. In the intensive culture pond implementing the technology of the invention, the aquaculture water consumption can be reduced by 70 to 80 percent, the sewage discharge is reduced, the environmental pollution is alleviated, and the aquaculture output is raised; and meanwhile, the method of the invention is beneficial for cutting off the horizontal transmission route of the pathogens, and can be used for processing and recycling the water in the intensive culture ponds for culturing the economic aquatic species such as fishes, prawns, macrobrachium rosenbergii and crabs, and the like in the process of cultivation, therefore, the method is helpful for the healthy and sustainable development of the aquaculture industry, and has high use value.

The invention discloses a method for maturing wild Holothuria scabra by manual intensive culture in an indoor cement pond. The method is carried out by the following steps of: collecting grown-up sea cucumbers of wild Holothuria scabra->fostering and screening the grown-up sea cucumbers->washing and disinfecting a breeding pond->modifying the breeding pond->feeding water into the breeding pond->disinfecting the grown-up sea cucumbers->putting the grown-up sea cucumbers into the pond->carrying out daily management measures. In the invention, by utilizing comprehensive technical measures combining the modification of environment conditions and intensification of inner nutrition, conditions including water quality, bottom materials, light illumination and the like which are close to wild habitats of the wild Holothuria scabra are created in the indoor cement pond; meanwhile, artificial compound feed with comprehensively-balanced nutrition is fed, scientific daily management is carried out to enable the wild Holothuria scabra from the natural sea to be better adapted to the indoor cultivation environment, and the survival rate reaches more than 95%; meanwhile, the wild Holothuria scabra can rapidly grow and the weight is increased from 100-200 g to 300 g in a short period (30-40 days); the growth of sexual glands of the wild Holothuria scabra are mature so that the wild Holothuria scabra can be used as seed sea cucumbers and the ratio of the group mature seed sea cucumber reaches 20%.

The invention discloses an automatic sewage discharging system and an automatic sewage discharging method of a prawn intensive culturing pond. The automatic sewage discharging system comprises a sewage discharging well, wherein the sewage discharging well is arranged at one side of the pond, the bottom surface of the sewage discharging well is lower than the bottom surface of the pond, the center parts of the bottom surfaces of the pond and the sewage discharging well are respectively provided with a sewage discharging outlet and a sewage inlet, the sewage discharging outlet and the sewage inlet are communicated through a U-shaped sewage discharging pipe, the sewage discharging well is also internally provided with an automatic switching device of the sewage inlet, the automatic switching device comprises a seal ball, a lifting rod, a moving block, a screw rod and an electric motor which drives the screw rod to rotate, the moving block is arranged on the screw rod and can move upwards or downwards along the screw rod, the upper end and the lower end of the lifting rod are respectively and fixedly connected with the moving block and the seal ball, and the starting / stopping of the electric motor is controlled by a microcomputer time switch. According to the automatic sewage discharging system disclosed by the invention, the sewage discharging can be automatically controlled through timing set, the labor intensity of fishing workers can be effectively reduced, the sewage discharging can be quantitatively carried out on time, stable water quality of the pond can be effectively maintained, the happening of disease can be reduced, and the using value is very high.

The invention belongs to an intelligent fish pond culture system based on the Internet of Things. The system includes an information collection module, a PAN coordinator and a control module, whereinthe information collection module includes a water quality analyzer, an image acquisition and processing system, a CC2530 single-chip microcomputer, an information acquisition sensor, a signal conditioning module and a zigbee module, the control module includes a control unit and an execution unit, and the execution unit includes a water inlet valve, a water outlet valve, a circulating water pump,an aerator, a semiconductor refrigerator, a cooling fan, a fish pond feeding machine and a wireless alarm device. The system is advantaged in that automatic culture production is achieved, online automatic monitoring of water temperature, dissolved oxygen, pH and temperature parameters of aquaculture water bodies is performed, accurate technical parameters are provided for scientific management,the intensive culture degree is improved, scientific, rigorous and objective analysis and demonstration of the technical route of economic benefits and regulatory effects are performed, risks are avoided, and good economic benefits are created for facility culture.

The invention provides a method for cultivating red-pulp hylocereus polyrhizus. The method includes the steps that anthracnose-free hybridized target single plants with the features that the numbers of borne fruits are large in successive years, the weight of single fruit bodies is 400 g or above, the fruit bodies are elliptic, fresh, sweet, elegantly fragrant and good in taste, pulp is bright and rosy, and branches are thick and solid are marked; particularly, branches of the plants in which pistil protrudes out of stamen thrums by 1 cm or less are preferentially and independently collected, sterilized, detoxified and subjected to seedling growing, seedlings are transplanted to land, large-area fruit tree management is carried out, and commercial hylocereus polyrhizus is formed. After three-year intensive-culturing test application, the yield can be continuously high, and the fruits are large and are stabilized to be 0.4-0.5 kg or above; compared with the earlier stage, the fruits are fresher, sweeter and more elegantly fragrant, the shapes of the fruits are not varied and kept elliptic, the content of fructose is about 6.8%, the content of glucose is about 4.2%, and the content of haematochrome is about 4%; other excellent substance characters such as nutrients, the health caring function and the medicine function are not changed, the characters of the original male parent are kept, the hybrid vigor is remarkably expressed, the survival rate is 97% or above, the fruit bearing rate is 95% or above, and the red-pulp rate is 95% or above.

The invention discloses an intelligent control integrated system for circulating water treatment, and belongs to the technical field of fish culture. The circulating water treatment system is formed by a culture pond, a water pump pond, an overflow filtration combined pond, a filtering basin, a sterilizing pond, a biological filter, and an aeration oxygenation pond which are in sequential and communicating arrangement; and a dissolved oxygen content stabilizing device and a slow flow net cylinder are also arranged. The beneficial effects of the system are that remained fish food and fish excreta precipitated at the bottom of the culture pond can be discharged from the pond bottom; primary purification is performed on water to be treated by adopting the overflow filtration combined pond, workloads of a micro filtration device and a biological filter are alleviated, purification effects are improved, and service life is prolonged; the dissolved oxygen content can be monitored and supplemented in real time by adopting the dissolved oxygen content stabilizing device, thus the dissolved oxygen content in the culture pond is always kept at a required level, and growth environments of bred fishes are guaranteed; and an intelligent circulating treatment device of the system can be suitable for high-density and intensive culture of cold water fishes, and the yield and economic benefits are improved.

The invention discloses a preparation for degrading drug residues in aquatic animals. The preparation is prepared from the following components in parts by weight: 30-60 parts of calcium glycosaminoglycan, 20-35 parts of radix glycyrrhizae, 2-20 parts of radix isatidis and 2-20 parts of calculus bovis. The preparation is prepare from glycosaminoglycan salt, radix glycyrrhizae, radix isatidis and calculus bovis through mixing, the components are compounded to achieve a function of synergistic detoxification, and the drug residues in the aquatic animals can be effectively degraded; the preparation can be added for a long time in the whole culture process, is ecological, green and pollution-free, is suitable for reducing cost and improving output value in the modern high-density intensive culture mode and is an excellent choice for aquaculture in the future.

The invention discloses an automatic sewage discharging system and an automatic sewage discharging method of a prawn intensive culturing pond. The automatic sewage discharging system comprises a sewage discharging well, wherein the sewage discharging well is arranged at one side of the pond, the bottom surface of the sewage discharging well is lower than the bottom surface of the pond, the center parts of the bottom surfaces of the pond and the sewage discharging well are respectively provided with a sewage discharging outlet and a sewage inlet, the sewage discharging outlet and the sewage inlet are communicated through a U-shaped sewage discharging pipe, the sewage discharging well is also internally provided with an automatic switching device of the sewage inlet, the automatic switching device comprises a seal ball, a lifting rod, a moving block, a screw rod and an electric motor which drives the screw rod to rotate, the moving block is arranged on the screw rod and can move upwards or downwards along the screw rod, the upper end and the lower end of the lifting rod are respectively and fixedly connected with the moving block and the seal ball, and the starting / stopping of the electric motor is controlled by a microcomputer time switch. According to the automatic sewage discharging system disclosed by the invention, the sewage discharging can be automatically controlled through timing set, the labor intensity of fishing workers can be effectively reduced, the sewage discharging can be quantitatively carried out on time, stable water quality of the pond can be effectively maintained, the happening of disease can be reduced, and the using value is very high.

The invention discloses an intensive culture and large-scale reproduction technique for parent pelteobagrus fulvidraco, which includes the following steps: selection, pond conditions, pond cleaning, periodical gonad examination, artificial spawning facilities and spawning induction and artificial insemination. The mature coefficient of parents in ponds is higher than the mature coefficient of wildpelteobagrus fulvidraco at the same stage, the ovaries of the female fishes are more orderly than the ovaries of wild pelteobagrus fulvidraco at the same stage, the ovaries are full, male testes arebright, the number of branches are large, and the time of reproduction can be reached earlier; equipment needed by a centralized aerated culture method is simple, the technique is easy to operate, andnot only can size be increased, but also the survival rate of fries can be ensured.

The invention discloses a bait throwing device for a net cage, which comprises a bait throwing box with a polygonal shape, wherein a material conveying device is arranged at the lower end of the baitthrowing box; the side surface of the material conveying device is connected with at least one net cage through a material conveying pipe; and a stirring device is arranged in the bait throwing box and is connected with a motor arranged at the upper end of the bait throwing box through a rotating shaft. The material conveying device is arranged at the lower end of the bait throwing box, the side surface of the material conveying device is connected with at least one net cage through the material conveying pipe, the bait throwing efficiency can be increased, the bait throwing box is suitable for intensive culture, the stirring device is arranged in the bait throwing box and is connected with the motor arranged at the upper end of the bait throwing box through the rotating shaft, under the action of the motor, the stirring device connected with the surface of the rotating shaft can be driven to stir the bait in a bait box body, so that the bait is more loose, dry and easy to throw beforebeing thrown, and the bait throwing efficiency is improved.