93results about "Pisciculture and aquaria" patented technology

The invention discloses a method for ecologically cultivating freshwater shrimps in a paddy. The method includes the following steps that the paddy is fertilized and then raked, a communicated cultivating ditch is excavated in the raked paddy, a field ridge is built around the cultivating ditch with excavated soil, the height of the field ridge ranges from 45 cm to 70 cm, and the width of the field ridge ranges from 60 cm to 90 cm; the cultivating ditch is provided with a water inlet and a drainage opening, the water inlet and the drainage opening are respectively provided with a device preventing the freshwater shrimps from escaping, a pond occupying 5%-8% of the area of the whole paddy is excavated on the water inlet, and the depth of the pond ranges from 80 cm to 110 cm; the paddy is sterilized through calcium oxide; seedlings of a rice variety are inserted into the sterilized paddy, wherein the stalks of the seedlings are thick and strong, the seedlings are resistant to lodging, diseases and fertility and grow in deep water, and the yield is high; the freshwater shrimps are fed after the seedlings turn green; bait is thrown during cultivating according to the freshwater shrimps in different growth stages, and meanwhile water keeps clean. The freshwater shrimps cultivated in the method are natural and free of pollution and are pure green food.

A tube type bird feeder comprising a seed tube having a side wall with at least one feed opening therein, a cover removably engaged with the seed tube proximate a top marginal edge of the seed tube, at least one perch mounted on the seed tube proximate the feed opening, and a base member removably secured to the seed tube adjacent the bottom marginal edge of the side wall.

A method and technical arrangement for efficient bulk transport of live fish or shellfish in water in a storage container, wherein the transport of such live organisms may last several hours or days. The storage container and various pieces of other necessary technical equipment used to keep the organisms alive, are placed in physical connection to at least one transport module which is arranged in shape and size to fit together with, or into, a transport container, preferably a standardized container. The container is attached to and carried by means of an ordinary surface transport means, including boat, railway, lorry or car.

The invention discloses an automatic fish feeding device capable of being adjusted and controlled. The device comprises a support (4), a rotary plate (6) and a water dripping device (7), wherein the support (4) is fixedly connected with a fish tank body, the rotary plate (6) is connected with the support (4) through a rotary shaft (5), and the water dripping device (7) is arranged on the upper side of the rotary plate (6). Water containing boxes (13) are evenly distributed on the outer ring of the rotary plate (6), a fish feed bin (14) is arranged on the inner ring of the rotary plate (6), a feeding inlet (9) and a discharging opening (12) are formed in the fish feed bin (14), and a feed baffle (8) is arranged at the feeding inlet (9). The device has the advantages that the device is free of electric power, safe, reliable, simple in structure, good in quality and low in cost, the feeding frequency is adjusted according to the water dripping speed, and the single-time feeding amount is adjusted according to the size of the discharging opening.

The invention discloses a wave-making oxygen increasing machine, and belongs to the field of aquaculture. The wave-making oxygen increasing machine comprises a floating body and a motor which is fixedly installed on the floating body and shares the same axis with the floating body, and the motor drives a vane wheel to rotate through a reducer. The wave-making oxygen increasing machine is characterized in that the top of the motor is provided with a swinging driver, the swinging driver comprises a support rod and a balance weight ball, the bottom end of the support rod is located at the top of the motor and the support rod shares the same axis with the motor, the top of the support rod supports the balance weight ball, the balance weight ball does reciprocating motion around the axis of the motor under the action of gravity to enable the motor to swing, the floating body is driven to tilt up and down, and therefore waves are made. Compared with the prior art, the wave-making oxygen increasing machine utilizes the potential energy of the balance weight ball to enable the motor to swing to drive the floating body to tilt to make similar natural waves in a pond, the total dissolved oxygen content of the pond is increased, and the energy-saving effect is achieved; the structure is simple, the manufacturing cost is low, energy consumption is not increased, the range of the dissolved oxygen function of one machine is large, and therefore the culturing cost is lowered.

The invention discloses a fishery breeding system based on agricultural machinery. The fishery breeding system comprises a fishpond, a feeding device, a catching device, a recognition device, a cleaning device, a positioning device, an anti-theft device and a central processing device; the fishpond is used for breeding fishes; the feeding device is used for scattering feed into the fishpond, recovering algae and processing the algae; the catching device is used for catching the bred fishes; the recognition device is used for recognizing water quality, water temperature, oxygen content and water body height in the fishpond; the cleaning device is used for cleaning garbage and withered branches in the fishpond and purifying the water quality; the positioning device is used for determining the positions of the devices and providing ship route planning; the anti-theft device is used for preventing the bred fishes from being stolen; and the central processing device is connected with the devices and controlls the operation of the devices through comprehensively processing the information transmitted by the devices. The fishery breeding system provided by the invention can be used to effectively improve the fish breeding environment and increase the yield and the quality of the fishes.

The invention discloses a method for judging the sex of trachinotus ovatus at an early stage. Young trachinotus ovatus is selected, the left body wall is cut off, sex gland is found out, characteristics of the sex gland are observed in situ, the sex gland is taken out and dissected, the characteristics of the dissection face of the sex gland are observed, and the sex of the trachinotus ovatus is judged by analyzing the characteristics of the sex gland According to the method, the instrument is simple, operation is rapid, the result is accurate, toxic chemical agents are not used, the method for judging the sex of the trachinotus ovatus at the early stage is convenient to carry out efficient, and reliable materials can be provided for molecular marker research for further searching for sex specialty of the trachinotus ovatus.

An apparatus for acclimating an aquatic organism, contained in a partially water filled plastic bag, to an environment in an aquarium includes an aquarium frame comprising a first portion exterior to the aquarium and a second portion interior to the aquarium. A bag holder is operable to hold a top of the plastic bag in an open position. The bag holder is positioned on the second portion where the top of the plastic bag is above a top level of water in the aquarium and a substantial portion of the plastic bag is below the top level. A dripping cup is operable to release water obtained from the aquarium into the plastic bag. The dripping cup is joinable to the first portion, whereby the aquatic organism is acclimated to a chemistry and temperature of the water in the aquarium.

The invention discloses a fish feed feeding machine with functions of automatic cutting and automatic proportioning. A material bin is fixedly connected to the top of a bracket of the fish feed feeding machine, a discharge opening of the material bin is connected with a discharging valve device assembly of the fish feed feeding machine, and a high-pressure material transporting fan is fixed at the right end of the bottom of the bracket of the fish feed feeding machine; the high-pressure material transporting fan is connected with the discharging valve device assembly of the fish feed feeding machine through an air pipe, the discharging valve device assembly of the fish feed feeding machine is connected with a material dispersing device assembly of the fish feed feeding machine through a material transporting pipeline, the material dispersing device assembly of the fish feed feeding machine is fixedly connected to the upper end of a material disperser bracket of the fish feed feeding machine, and disperser floating balls of the fish feed feeding machine are connected to two ends of the bottom of the material disperser bracket of the fish feed feeding machine. The fish feed feeding machine with the functions of automatic cutting and automatic proportioning, disclosed by the invention, can bring the material dispersing device to the center of aquatic water through the disperser floating balls of the fish feed feeding machine so as to disperse the fish feed, and solves the problem that a traditional fish feed feeding machine can only feed materials on the edge of a fish pond.

The invention discloses an aquaculture oxygenation system. The aquaculture oxygenation system comprises an air compressor used for supplying compressed air, an air storage tank used for storing the compressed air generated by the air compressor, an air supply main pipe connected to the air outlet end of the air storage tank, and a plurality of oxygenation devices located in pools used for aquaculture, and air supply branch pipes provided with pressure reducing valves are connected to pipe outlets of the air supply main pipe. Each oxygenation device comprises a top plate, side plates and a bottom support, wherein the side plates are arranged on the peripheral side of the top plate in a surrounding mode, oxygenation pipes are arranged at the bottom support in rows, and a guide port is formed in each side plate. The guide ports of all the oxygenation devices in the pools are distributed clockwise or counterclockwise. The peripheral lateral wall of each oxygenation pipe is provided with a plurality of micropores communicated with a pipe cavity of the oxygenation pipe. Each oxygenation device is connected with a pipe outlet in the corresponding air supply branch pipe through pipe openings of the corresponding oxygenation pipes. The aquaculture oxygenation system is stable in air supply and far in delivery distance, oxygenation can be realized without installing the oxygenation devices in all the pools, and the equipment is easy to install, low in energy consumption, low in usage cost and good in oxygenation effect.

The invention belongs to the field of aquatic breeding technology, and relates to seedling breeding in aquatic breeding, in particular to a breeding method of one-year double-cropping seedlings in rice field of procambarus clarkii. The breeding method comprises steps of 1) excavating zigzag furrows in the rice field; 2) planting different water plants in the zigzag furrows and outer rice field besides the zigzag furrows; 3) putting young shrimps in the zigzag furrows; 4) selecting parents in the zigzag furrows and putting the parents in the zigzag furrows; and 5) putting the parents in twice in the zigzag furrows. The breeding method is advantageous in that 1) an artificial ecological system of one-year double-cropping seedling breeding in rice field of procambarus clarkii is established; 2) improved variety of parent shrimps in the zigzag furrows of the rice filed are selected, so rate of survival and egg laying is increased; and 3) the parent shrimps are put in the zigzag furrows in twice, so yield of the seedling is doubled, and yield per unit mu of high-quality large young shrimps can reach 160,000.

The invention provides a cultivation method of triploid fries of haliotis discuses and relates to abalone. The cultivation method comprises the following steps of: selecting haliotis discuses which have the shell length in the range of 7-12cm, have good individual vitality, and have no damage on muscles as parent abalones, developing artificial feeding on the parent abalones, and ensuring the synchronous maturity of the gonadal development of the parent abalones through the artificial feeding; simulating the parent abalones by adopting an artificial propagation method, respectively inducing the parent abalones to produce milt and lay eggs, collecting the milt and eggs for artificial insemination, and obtaining fertilized eggs of the haliotis discuses; and washing the fertilized eggs of the haliotis discuses for 10-15min through seawater with the temperature of 2-3 DEG C based on the time of observing 30%-50% of the fertilized eggs of the haliotis discuses to produce first polar bodies under an optical microscope as starting time. A ploidy analyzer is adopted to detect the triploid rate of cultured fries of the haliotis discuses after the low temperature induction. When the cultivation method is adopted, the triploid fries of haliotis discuses characterized in excellent quality, rapid growth, large body, high survival rate and the like can be cultivated in a large scale, and the cultivation method has good economic benefit.

The invention discloses a device capable of removing micro-plastic particles in water in a ditch water inlet type seawater culture pond. The device comprises a filter box embedded in a ditch and not submerged by water flow, wherein a plurality of filter cavities allowing water to be fed from the front end and discharged from the rear end are formed in the filter tank, and a front sundries stopper,a water flow reducer, a first-stage funnel-type primary filter, a second-stage funnel-type primary filter, a first-stage grid microfilter, a second-stage grid microfilter, a third-stage grid microfilter and a rear biological stopper are arranged in each filter cavity from front to back sequentially. Compared with the prior art, the device has the advantages as follows: (1) a novel water inlet pipeline system is not needed to be rebuilt, the adaptability is wide, the universality is better, and the cost is saved; (2) the micro plastic particles in the water in the culture pond can be effectively removed; (3) modular design is adopted, so that the device can be disassembled, flushed or replaced conveniently; (4) the frequency of replacing or flushing filter screens can be reduced; (5) use is convenient, the cost is relatively low, and maintenance is simpler.

The invention provides a living aquatic product transport case, and belongs to the field of aquaculture. According to the technical scheme, the case includes an outer case body, an inner case body isarranged in the outer case body, the top of the outer case body is provided with a case cover, a shockproof plate is arranged in the outer case body, a number of dampers are arranged between the shockproof bottom plate and the bottom surface of the outer case body, the inner case body is arranged on the shockproof plate, and a lifting mechanism is arranged in the inner case body. The transport case has the advantages that through the arrangement of the dampers, vibration of the transport case in the course of transportation is reduced, the situations that aquatic products are collided and scales fall off due to a bumpy road are reduced, impurities in water can be removed in time, water in the transport case can flow in cycle, the dissolved oxygen content of water in the transport case is ensured, the freshness of aquatic products is greatly improved, and the transport case is suitable for long distance transportation of the aquatic products.

The invention relates to a water purification system for aquiculture and relates to the technical field of water treatment and purification. According to the water purification system for aquiculture, a culture pond, a water pump, a filter device, a precision filter and an ultraviolet (UV) sterilization device form a circulation loop through a pipeline, wherein the filter device consists of a cylindrical settling tank of which the bottom has a shape of an elliptical head and a plurality of filter tanks, which are arranged adjacent to each other in turn, a water body flow direction is formed, and filter cotton is arranged between the settling tank and the filter tanks; the UV sterilization device comprises two annular pipelines and a plurality of circular tubes which are arranged between the two annular pipelines; two ends of the circular tubes are communicated with the annular pipelines through pipelines; UV sterilization lamp tubes and protective tubes are arranged in the circular tubes; the UV sterilization lamp tubes are arranged in the protective tubes; and two ends of the UV sterilization lamp tubes and the protective tubes are fixed through end covers. The water purification system for aquiculture has a wide application range, and large-particle substances, bacteria, excrement and other dirt in the water are effectively settled and filtered; and moreover, physical and chemical conditions for aquatic water are stable, and the efficiency for water treatment is high.

A sleeved drum type culturing apparatus for the copepodid crustacean is composed of a culturing drum with internal and external drums, water inlet and outlet and internal net filter, an air-water mixer, a cooler, a water pump, an ultraviolet disinfector and a heater with external sensor.

The invention discloses a sinking type cuttlefish egg attaching device, and aims to provide the sinking type cuttlefish egg attaching device which can effectively disperse cuttlefish eggs so as to avoid the problems that a large number of cuttlefish eggs are stacked together, thus, a large number of cuttlefish eggs wrapped in the middle are slow in development and even rot and die, and the hatching rate is seriously reduced. The sinking type cuttlefish egg attaching device comprises a bottom frame and a lifting type egg attaching device, wherein the lifting type egg attaching device comprisesa self-settling egg attaching structure, a first floating ball, a connecting rope and a guide wheel set; the self-settling egg attaching structure comprises a second floating ball, a vertical guide rod arranged on the bottom frame, an upper limiting block, a lower limiting block, a sliding sleeve arranged on the vertical guide rod in a sliding mode, a balancing weight arranged on the sliding sleeve and an egg attaching rope connected with the sliding sleeve and the second floating ball, and the upper limiting block and the lower limiting block are arranged on the vertical guide rod; the firstfloating ball floats on the sea surface; the guide wheel set comprises a first guide wheel located below the vertical guide rod; and the first floating ball is connected with the sliding sleeve by theconnecting rope, and the connecting rope bypasses the first guide wheel.

The invention relates to the technical field of aquaculture in fishery, in particular to an automatic feeder for aquaculture in fishery. The automatic feeder comprises a frame, paddle mechanisms, a direction control mechanism, a feeding mechanism, buoyancy regulation mechanisms, a storage battery and a controller. The paddle mechanisms are symmetrically and fixedly mounted on the frame relative tothe axis of the frame in the length direction. In operation, operating ends of the paddle mechanisms contact with water, the direction control mechanism is fixedly mounted on the central axis of theframe, an operating end of the direction control mechanism extends into water in operation, the feeding mechanism is fixedly mounted on the frame while the bottom penetrates the frame, the buoyancy regulation mechanisms are fixedly mounted around the frame, and the storage battery is fixedly mounted on the frame. By adoption of the technical scheme, the problem of nonuniformity in feeding of fishfeed in the prior art is solved, and the automatic feeder is convenient and controllable in direction adjustment, low in environmental requirements, wide in application range and suitable for both uniform feeding and concentrated feeding to avoid waste of the fish feed.

The invention provides a separating device for fish and shrimps on boat. The device comprises a magnet, a separating rack, a shrimp pond, a separating board and a fishpond; an upper end of the magnet is provided with the separating rack; one end of the separating rack is provided with gradient; magnetic poles are symmetrically installed at two sides inside the separating rack; the other end of the separating rack is provided with a partition plate; one end of the separating rack is connected with the shrimp pond; one end of the shrimp pond is provided with gradient; an upper end of the shrimp pond is provided with the separating board; the middle of the separating board is provided with a second partition plate; transmission devices are installed at two sides of the separating board; the shrimp pond is connected with a guiding rack; one end of the guiding rack is provided with the fishpond. The separating device for fish and shrimps on boat provided in the invention has simple structure and can automatically performs classification according to the reaction of the magnetic poles of fish and shrimps without frequent contact of the fish and shrimps so as to increase the survival time of fish and shrimps.

Disclosed herein is a bird feeder with a guard protecting against contamination of the bird feed contained within the feeder. The feeder comprises a housing that defines a feed chamber. This housing includes a lid, wherein the lid has at least one opening. This opening can be used by birds to access food within the feeder. As mentioned above, the feeder includes a guard. This guard is formed integrally or it can be a separate part attached to the lid near or at an opening. In one aspect, the guard includes an occluding element, wherein this occluding element is in communication with a biasing element. The occluding element has a first position which occludes an opening sufficiently to prevent animals other than certain birds from gaining access to said feed chamber. This occluding element is capable of being movable to a second position by applied external pressure to the occluding element thus permitting access to said chamber. As the applied pressure is withdrawn, the occluding element substantially returns to its first position.

The invention discloses an assembled-type cement pier anchoring system for net cage fixation. The anchoring system is composed through assembly of a main cement sunk lump, four subsidiary cement sunk lumps, a horizontal connecting baseplate, a longitudinal connecting baseplate and four rib plates, wherein the main cement sunk lump and the subsidiary cement sunk lumps are cubes, and a preformed hole is formed in the vertical center axis of the each cube; and the horizontal connecting baseplate and the longitudinal connecting baseplate are assembled into a criss-crossed baseplate structure, the main cement sunk lump is assembled at the criss-crossed center axis, and the four subsidiary cement sunk lumps are assembled on end parts of the horizontal connecting baseplate and the longitudinal connecting baseplate respectively. An anchoring system to be lifted has a large overall weight; the criss-crossed system formed through the assembly has large overall dimensions, uniform mass distribution and strong overturning resistance and can get adapted to stormy effects in random directions, and various seabed geological conditions; and construction duration on seas is very short; and large anchoring force can be provided.

PURPOSE: A buoy for the cultivation of marine products and a manufacturing method thereof are provided to enhance the hardness of a buoy. CONSTITUTION: A buoy for the cultivation of marine products comprises a bag extruding device(10), a bag molding device(20), a radiation cross-linking device(30), and a stretching unit(40). The bag extruding device supplies synthetic resin and extrudes a bag. The bag molding device supplies air inside a bag and molds the bag in the shape of a cylinder. The radiation cross-linking device radiates ultraviolet rays or infrared rays and improves chemical and mechanical properties. The stretching unit supplies a bag to the radiation cross-linking device and stretches the length and diameter of the bag.

The invention relates to a breeding method for jointly breeding fingerling in the current year in takifugu flavidus commercial fish, and relates to breeding of the takifugu flavidus. The method comprises breeding of large fingerling of commercial fish, daily management of the commercial fish, inoculation of copepods, breeding of summerlings and harvesting, and is characterized in that when the temperature rises in the last ten days of March and the first ten days of April and the water temperature of an outside pond is kept to be 14-15 DEG C, overwintered fingerling is bred in the outer pond gradually for breeding, and whether copepods exist in seawater in a commercial fish aquaculture pond is detected after the commercial fish fingerling is bred; if no, exogenous inoculation is performed, pest organisms are removed, the density of the copepods in the pond is 3-10 pieces/L, and the summerlings are bred in June and July according to the breeding density of 1,000-1,500 fish per mu; and in the middle ten days of November, the takifugu flavidus is transferred into a shed for overwintering and seined and caught, and two-age commercial fish and three-age commercial fish can be sold in the market if weighing over 250g.

The invention discloses a smelt artificial propagation method. From the early June, the fodder containing more fish meal protein is used for the feeding of female parent fishes. While from the middle of September, the female parent fishes are fed on the fodder containing spirulina powder and aluzyme. After the parent fishes enter the gonad mature period, the better mature female parent fishes are selected and cultivated after the estrualization, and the sexually mature male parent fishes are selected and cultivated after the estrualization. After the cultivated parent fishes reach more than 60 % gonad maturity, the water temperature of a decorporation pool is dropped continuously for 2 days with the decline of 2 degree each day. Afterwards the constant temperature is kept for 4 to 6 days. During the ovulatory period of parent fish, the ovums and the sperms are artificially collected every two days. The dry artificial insemination method is used to obtain a germ cell, and the germ cell is put in a hatchery pond for breeding. With the invention, the smelt sverage absolute fecundity and the fertility rate can be enhanced, and a great number of fry can be obtained in each breeding. The scale of artificial propagation is increased, and the labour intensity of the artificial propagation is reduced. Thus a foundation for the large scale artificial culture of smelt is established.

The invention belongs to the field of offshore wind power engineering, and particularly relates to a construction method of an aquaculture net cage based on a built offshore wind power multi-pile bearing platform foundation. The construction method comprises the following steps that a first hoop is installed on a pile leg in a surrounding mode; a fixing piece is installed on the first hoop; the rest of hoops are installed on the pile leg along the fixing piece; and anchor chain rings of a net are installed in cooperation with the hoops, the edge of the net is bound to the fixing piece, and installation of the net is completed. The construction method has the following beneficial effects that the construction method for installing the net through the hoops and the fixing piece is low in difficulty, underwater welding operation is not needed, and the cost is saved.

The invention provides an aquaculture method of ostrea plicatula. The method comprises the following steps: 1. selecting an aquaculture area according to the conditions of 5-15m water depth during low tide, 40-60cm/s water speed, substrate of sediment or sand, over 50cm transparency, no eddy and no reverse bump flow; 2. selecting a seedling collection ground which locates in the border region between middle and low tidal regions of inner bar with parent oysters and is the sandy mud flat of slower flow rate and flat terrain; 3. arranging a seedling collection support through taking moso bamboo or batten as support bar and putting up a shelf of 1-1.5m wide and 40-50cm away from the bottom; 4. arranging a cultivation stand of 1.5-2m space among shelf pillars and 1-1.5m away from the bottom; 5. horizontally hanging ostrea strings in the direction of following wind with the string spacing of 15-20cm. Through horizontally hanging ostrea strings which makes water resistance small and keeps water flowing, the method avoids bottom mud rising, the asphyxiated death of ostrea strings in mud as well as the dropping and twining of ostrea strings. The aquaculture method of ostrea plicatula is suitable to be applied in shallow aquaculture.