73results about How to "Avoid predation" patented technology

The invention provides a stormproof dual-net wall close type net cage, and belongs to the field of aquaculture net cages. The stormproof dual-net wall close type net cage comprises a net cage frame, an aquaculture net is hung on the net cage frame, and the net cage frame is uniformly connected with connecting arms, an outer layer aquaculture net and an inner layer aquaculture net are suspended on the connecting arms, and the inner layer aquaculture net is sleeved in the external layer aquaculture net; water supply equipment is arranged on the net cage frame, a lift pump is arranged on the water supply equipment, and a water pumping pipe of the lift pump extends into the seawater out of the net cage; a water outlet of the lift pump is connected with a water inlet pipe, the water inlet pipe extends into the net cage; the water outlet is arranged on the water inlet pipe, and the water outlet and the net cage frame tangent line at a corresponding position thereof present an angle at 30 degree; the bottom of each of the outer layer aquaculture net and the inner layer aquaculture net is connected with a dirt collecting device, thereby effectively avoiding the conditions that the fish in the net cage is injured due to larger storm and the net cage is damaged in the large storm, and the water body exchange capacity is strong.

The invention provides a wood frog stereoscopic cultivation technique. The wood frog stereoscopic cultivation technique relates to a wood frog cultivation ecological system, a wood frog anti-escape method, a wood frog cultivation harm prevention method and a feeding method for increasing the wood frog survival rate and the oil yield. The facilities used in the wood frog cultivation ecological system comprise a frog house and a grape trellis. A wall used in the wood frog anti-escape method is built by stones or bricks, the wall is of a T shape, and the top of the wall is covered by an inverted U-shaped alloy aluminum plate. The wood frog cultivation harm prevention method comprises the method for preventing harm caused by snakes, mice and cats and the method for preventing harm caused by birds. The feeding method for increasing the wood frog survival rate and the oil yield is achieved through the following steps that (1) after being hatched, firstly, tadpoles eat egg-covered egg membranes for 7-10 days, and then the tadpoles eat bait after eating up the egg membranes; (2) after the tails of froglets are completely absorbed, small yellow mealworms which are 0.6-0.8mm in length begin to be utilized to feed the froglets; (3) after 10-15 days, yellow mealworms which are 1-1.2mm in length are utilized to feed the froglets; (4) after three months, the yellow mealworms which are 1.5-2mm in length are utilized to feed the froglets.

The invention discloses a temporary culture protection device and a method for bottom sowing transplanting trochus. The temporary culture protection device includes a protection net with a bottom opening and four fixing racks. The protection net is of a cubic structure. Fixing ropes are arranged on the eight vertexes of the protection net. Each fixing rack includes a steel pipe, a balance plate and steel nails which are arranged in a top-to-bottom order. Fixing rings are arranged on the outer sidewall of the two ends of each steel pipe. The protection net is movably fixed to the fixing rings through the fixing ropes. The method for bottom sowing transplanting the trochus includes three steps: fixed point feeding, bottom sowing temporary culture and unprotecting. The device and method of the invention can be applied to seedling bottom sowing of the trochus in the construction of marine pasture, the population recovery of the trochus in the restoration of a coral reef ecosystem and the like, can improve the survival rate of the bottom sowing transplanting of the trochus, and are simple in operation.

The invention provides a coral reef transplanting repairing device applicable to South China Sea. The coral reef transplanting repairing device comprises a lateral wall, bottom feet, a rigid support, a base plate, a control box, a cross rotary knob, a worm, a bevel gear and a coral cultivation device. By the arrangement, the coral reef transplanting repairing device has the advantages that during a coral spawning period, the coral reef transplanting repairing device fixed on the outer slope in front of a coral reef attracts and fixes drifting coral larvae, and a hole is drilled in the degenerated coral reef and the coral cultivation device attached with coral is inserted and fixed into the hole after the coral is mature so as to complete the ecologic repairing of the coral reef. By the coral reef transplanting repairing device, the problems that a traditional coral reef transplanting repairing device is low in coral transplanting survival rate and difficult in underwater coral transplanting and fixing, the coral larvae are preyed easily and covered by sediments, and the like are solved, and coral reef transplanting repairing efficiency and quality are increased.

The invention relates to the field of agricultural cultivation, in particular to a lotus root planting method. The method is simple. Fermented farm manure is used as fertilizer and can accelerate growing of lotus roots, and the yield and efficiency can be improved; meanwhile, loaches are placed to a lotus root field, the resources of the lotus root field can be utilized to the maximum extent; plastic paper is arranged at the bottom and the periphery of the lotus root field, loss of nutritional ingredients is prevented, and losing of the loaches is also prevented; a protective net is arranged above the lotus root field and can prevent pecking of birds, and therefore the lotus roots can grow healthily.

The invention relates to the technical field of building structures, in particular to a shore-based feed scattering device with a flow adjusting mechanism for aquaculture. The device comprises a device main body, a controller, a storage battery and a driving motor, wherein the device main body comprises a floating plate, a feed collecting box, a feed inlet, an observation plate, scale marks, the controller and the storage battery; a feeding mechanism is arranged in the device main body, a protection mechanism is arranged in the device main body, the device main body is provided with a moving mechanism, and the device main body is provided with an adjusting mechanism. According to the feed scattering device disclosed by the invention, manual feed scattering is avoided, the workload of feeding personnel is reduced, the feed scattering speed is increased, operation is easy, and use is convenient; in addition, the feed can be prevented from being agglomerated into blocks in a feed storagecavity through an arranged stirring rod, the feed scattering range is widened, and the phenomenon that fish shoals snatch food due to non-uniform material scattering caused by a small material scattering range is avoided.

The invention provides a platform type fish culture device. The fish culture device comprises a platform hull, a control unit, a remote controller and a power source, a culture port is formed in the platform hull, a culture box is arranged inside the culture port, a first filter screen plate is arranged inside the culture box, a first culture room and a second culture room are respectively arranged at the top and bottom of the first filter screen plate, the first culture room is arranged at the top of the platform hull, the second culture room is arranged at the bottom of the platform hull, asecond filter screen plate is arranged inside the first culture room, a growth chamber is formed between the first filter screen plate and the second filter screen plate, a fixing plate is arranged atthe top of the first culture room, the fixing plate and the second filter screen plate are connected through first electric telescopic rods, a culture plate is arranged at the bottom of the second culture room, placing blocks are arranged at the two sides of the culture plate, and the placing blocks and the first filter screen plate are connected through second electric telescopic rods. The fishculture device has the advantages of novel design, reasonable structure, easy classification and culture, and good culture effects.

The invention discloses a method for comprehensive cultivation of procambarus clarkii in a paddy field, which includes paddy field selecting, paddy field planning, young procambarus clarkia putting-in, feeding management, daily management, adult procambarus clarkia catching, juvenile procambarus clarkia putting-in, parent procambarus clarkia retaining and rice planting. Waste discs are hung in theannular ditches dug in the paddy field and in the 'cross'-shaped or groined field ditches in the middle to drive away water birds, so that water birds are prevented from preying on procambarus clarkia and damaging rice panicles. In addition, the excrement of procambarus clarkia provides high-quality fertilizer for the growth of rice. Therefore, the ecological environment of the paddy field is improved, and the rice yield is increased. Moreover, the procambarus clarkia seldom gets ill because of the sufficient dissolved oxygen in the water in the paddy field, which is conducive to greater economic benefits. The reasonable design and application of the annular ditches and the field ditches brings convenience to feeding and catching. The planting of rice will not be affected. Good harvest isachieved for both rice and procambarus clarkii.

Described herein are cyanobacteria encapsulated in hydrogels. Also described herein are consortia that include encapsulated cyanobacteria and heterotrophic microbes. The encapsulated cyanobacteria can be autotrophic and can provide nutrients to the heterotrophic microbes, which can utilize the nutrients to grow and produce useful products.

The invention provides a fish domestication device, and belongs to the field of cultivation. The fish domestication device comprises an installing rod, wherein the lower end of the installing rod is fixedly connected with the bottom of a pond; the upper end of the installing rod is fixedly connected with a rotating motor; a cylindrical processing tube is fixedly connected onto a motor rotating shaft of the rotating motor; a plurality of material throwing holes are formed in the outer wall of the processing tube; the domestication device also comprises a linear motor arranged above the pond; a motor shaft of the linear motor is in vertical arrangement; the end part of the lower end of the linear motor is fixedly connected with a grinding block; the grinding block can enter the processing tube; a material blocking device is fixedly connected onto the linear motor; the material blocking device comprises fixing frames which are in a 7 shape and are respectively fixed at two sides of the linear motor; one end of each fixing frame is fixedly connected onto the linear motor; the other ends of the two fixing frames are in downward arrangement; a blocking block is fixedly connected between the end parts of the other ends of the two fixing frames; the middle part of the blocking block is provided with an extending-in hole; a flaring-shaped blocking plate is fixedly connected onto the outer wall of the blocking block, and covers the processing tube. The fish domestication device has the advantages that the structure design is ingenious; the material spreading is uniform; the domestication effect is good.

The invention discloses a deep water cage device for preventing external biting fishes from attaching. The device includes a deep water cage device, a square cage device nested inside the deep water cage device, and a buffer device for junctions of a circular deep water cage frame and a square deep water cage frame. Two-layer mesh arrangement is employed, the outer layer is covered with a large-mesh net and hung on the circular deep water cage frame for protection, the inner layer is the mesh net suitable for the size of fishes cultured in cages and is mainly used for protecting and isolatingfish schools, the double-layer mesh net mainly achieves protection through physical isolation, not only can the biting fishes be effectively prevented from directly attacking the inner-layer net, butalso can prevent the long-nosed needlefishes from catching the fishes in the net, through the buffer device, the impact force of inner side walls of the square deep water cage frame and the circular deep water cage frame is alleviated, moreover, the deep water cage device and the square cage device are effectively protected, and protection of the device is improved.

The invention discloses a safe frog spawning and hatching device, which comprises a suspension ring, a mesh plate, a sonar fish driving device, a storage battery, a weight plate, a heater, a level, an underwater camera, an induction lamp gas flow meter, an oxygen generating device and The airbag, the side of the mesh plate is provided with lifting rings, the interior of the mesh plate is equipped with a battery and a heater, the side wall of the mesh plate is equipped with a sonar fish repelling device, the bottom of the mesh plate is provided with spikes, and the center of the bottom surface of the mesh plate is provided with a weight There are level gauges and thermometers on the side wall of the mesh plate, underwater cameras are installed on both sides of the upper surface of the mesh plate, grooves are evenly arranged on the surface of the mesh plate, induction lights are installed on the side of the groove, and oxygen gas is installed at the bottom of the mesh plate. Generating device, the oxygen generating device is connected with the nozzle through the air pipe, and the air bag is connected with the net plate through the traction rope. The invention ensures the living and hatching environment of the frog eggs, facilitates the spawning of frogs and the growth of the frog eggs, has simple structure, is convenient to use, and is beneficial to popularization.

The invention discloses a seabed cage-breeding device for comb shells and solves the problems that in the prior art, the breeding type is easily affected by environment, so that the death rate of the comb shells is high and the profit is low. The technical scheme of the invention is that: the seabed cage-breeding device comprises a netting, a support frame and a mouth-closing tube, wherein the support frame is arranged in the netting and connected with the netting to support the netting, and the mouth-closing tube is used for closing the mouth of the netting. The invention designs the novel seabed cage-breeding device; by adopting the seabed cage-breeding method, not only the problem that the raft breeding is affected by the surface temperature fluctuation and high water temperature in summer is solved, but also the problem of low recapture rate existing in the bottom sowing enhancement breeding method is also solved, the survival rate of scallops is high and the breeding density of young comb shells can be self-controlled according to actual conditions.

The invention belongs to the technical field of cultivation, and in particular relates to a method for raising chickens in a brier grape forest. According to the method, an ecological breeding way for planting brier grapes and raising the chickens is realized by the four steps of setting the grape forest, building a chicken house, carrying out stocking management and carrying out disease prevention and treatment; the faeces excreted by the chickens in a stocking process can be used as fertilizer of the grapes, so that the plant diseases and insect pests of the grapes are reduced; furthermore, the chickens also can eat lotus corniculatus or green bristle grass, insects, fallen leaves and other materials, so that the feed source of the chickens is enriched, and the feed consumption is reduced; furthermore, after the method is adopted, the growth and development of the chickens can be promoted, and the meat quality of the chickens is improved; after the feed is matched for use, an ecological and environment-friendly cultivation mode is realized.

The invention discloses an automatic feeding trough for a pig house. The feeding trough comprises a feeding trough body, a mixing device and a driving device; the mixing device is arranged above the feeding trough body, the driving device is arranged below the mixing device, the mixing device comprises a stirring chamber and a stirring mechanism arranged in the stirring chamber, the stirring mechanism comprises a motor and a rotating shaft, the power output end of the motor is fixedly connected with one end of the rotating shaft, multiple stirring rods are symmetrically arranged on the rotating shaft, a discharge hole is formed in the bottom of the stirring chamber and located over the feeding trough body, a solenoid valve is arranged at the discharge hole, the driving device comprises a mounting frame and driving wheels arranged at the bottom of the mounting frame, a stirring bin is installed on the mounting frame, the driving wheels are symmetrically arranged on the two sides of thefeeding trough body, and matched rolling tracks corresponding to the driving wheels are arranged on the two sides of the feeding trough body respectively. The degree of intelligence is high, the laborcost is greatly lowered, foodstuffs are dispersed, and the phenomenon of fighting for food is avoided.

The invention relates to a wood frog cultivation harm prevention method. The wood frog cultivation harm prevention method particularly includes the method for preventing harm caused by snakes, mice and cats and the method for preventing harm caused by birds. The method for preventing harm caused by the snakes, the mice and the cats includes the steps that electric cats are installed around a frog house or fences, and the 36V direct current stabilized voltage is connected to the electric cats. The method for preventing harm caused by the birds includes the steps that a bird prevention net with holes completely covers the frog house or the fences, and a plurality of heavy objects which fasten the bird prevention net and prevent the center of the bird prevention net from drooping due to the gravity action are arranged on the edge of the bird prevention net; the electric cats are installed on the outer wall, 15-30cm away from the ground, of the frog house; the electric cats completely surround the frog house or the fences; a culturist overhauls and maintains the electric cats and the bird prevention net at regular intervals; the 36v electric cat net can effectively prevent the snakes, the mice, the cats and other animals from preying on wood frogs without damaging personal safety of people; magpies, crows and other birds can be prevented from damaging the wood frogs.

The invention discloses a culture method of river crab megalops larvae and relates to the technical field of crab breeding. The culture method comprises the following steps: constructing a nursery pond, planting aquatic plants, breeding parent fries outside cages, feeding baits, carrying out water quality management and carrying out greenhouse management. By adopting the method disclosed by the invention, the survival rate of the river crab megalops larvae can be improved; the megalops larvae have the advantages of rapid development, large size, high yield, low sexual precocity rate and easiness for management; and after the megalops larvae are cultured into phase-V juvenile crabs, the phase-V juvenile crabs can be transferred into a juvenile crab culture phase by ponds to be cultured, andthe culture method has very good culture popularization value.

The invention discloses an alternate culture method for ietalurus punetaus and micropterus salmoides. The method comprises the following steps: breeding ietalurus punetaus, namely breeding fries of ietalurus punetaus in a strengthening pond at the beginning of September in just the year, and 2 months later, transferring the fries of the etalurus punetaus into a breeding pond, starting grown fish breeding, wherein the breeding density is 2500 fishes/mu, and the grown fish breeding stage lasts for 12 months; harvesting the fish in October in a next year, and cleaning and sterilizing the breedingpond within October and November after harvesting in the next year; performing alternate culture on micropterus salmoides, namely breeding fries of micropterus salmoides in the strengthening pond within December in the year and January in a next year, in January of a next year, putting the micropterus salmoides into the pond of the ietalurus punetaus, starting grown fish breeding, wherein the breeding density is 1500 fishes/mu, and the breeding time is 7 months; and performing harvesting in August in the next year. By adopting the method, two kinds of fishes are bred at different stages, thegrowth peak periods of the ietalurus punetaus and the micropterus salmoides are staggered, then the micropterus salmoides can be prevented from massively predating the ietalurus punetaus at early breeding stages, the breeding load can be alleviated, the water body space utilization rate is remarkably and comprehensively increased, and the breeding risk can be reduced.

The invention relates to the field of breeding equipment and specifically discloses a feed dispensing device for breeding fragrant pigs. The feed dispensing device comprises a feed trough and a feed storage tank communicating with a discharging pipe; a first baffle and a second baffle are slidably connected to the inside of the feed trough, the feed trough is partitioned into a first groove, a second groove and a third groove which are independent by the first baffle and the second baffle, and a sliding plate is slidably connected to the inside of the second groove; the top of the side wall ofeach of the first groove and the third groove is slidably connected with a sliding strip parallel to the sliding plate, each sliding strip is provided with a magnet, and the sliding plate is providedwith an iron block corresponding to the magnet; and the top of the side wall of each of the first groove and the third groove is provided with a plurality of cover plates, the adjacent cover plates are hinged with each other to form a V shape, a plurality of feeding holes are formed in the cover plates, the cover plates close to the sliding strips are hinged to the sliding strips, and the cover plates far away from the sliding strips are hinged to the side wall of the feed trough. By using the feed dispensing device, feed waste caused by feed scrambling among the pigs during feed dispensing can be avoided, and meanwhile, the phenomenon that the feed is treaded by the pigs in a feeding process can be avoided.

The invention discloses a rice field breeding device for field snails and a using method of the rice field breeding device. The rice field breeding device comprises a spawning groove, a spawning groove attachment plate, a bottom net, an attachment device and an anti-escape cover, wherein the spawning groove with the small bottom and the large top opening is defined by the spawning groove attachment plate, a net piece is fixed to the side wall of the spawning groove attachment plate, the bottom net is fixedly installed at the bottom of the spawning groove, the attachment device is installed in the spawning groove, the bottom of the attachment device is fixedly connected with the bottom net, and the anti-escape cover is arranged at the top of the spawning groove. The problems that in the prior art, due to the fact that field snails are difficult to breed and separate, the survival rate of the field snails is low, batch breeding cannot be conducted, dead snail shells of the field snails are difficult to clean and decompose due to mixed breeding of young field snails and breeding field snails, and consequently the production efficiency of the whole field snail breeding industry is low, and the industry development is slow are solved.

A double-sided automatic feeding equipment, including a bracket, a feeding bin and a feeding trough, the feeding bin is set on the upper part of the bracket, the feeding trough is set under the feeding bin, and the feeding bin is a funnel with a large upper part and a smaller bottom part The bottom of the feeding silo has a rectangular opening, and the two ends of the feeding trough facing the two rectangular vertical plates are respectively fixed with connecting plates whose size is smaller than the rectangular opening at the bottom of the feeding silo, and the upper part of each connecting plate passes through the bottom of the feeding silo. The rectangular opening is hinged with a lifting device, and the upper end of the lifting device is connected to the bracket; the lower part of the feeding trough is provided with a water outlet pipe head. Compared with the prior art, the present invention has a simple structure, and the feed can be automatically dropped into the feeding trough according to the needs of the piglets, and the height of the feeding trough can be adjusted according to the needs, and a water source can also be provided while feeding, which improves the piglets' feeding capacity. feed quality.

The invention relates to an anti-wave carrageen seedling hanging breeding device and discloses a breeding and planting device capable of preventing carrageen from being whirled away by the wind wave. The anti-wave carrageen seedling hanging breeding device is characterized in that one end of a main filtering screen is connected with one end of an assistant filtering screen through a main connecting buckle, and the other end of the main filtering screen is connected with the other end of the assistant filtering screen through an assistant connecting buckle; the main filtering screen and the assistant filtering screen are respectively hemispherical to form a sphere and are made of engineering plastics, and a plurality of spikes are evenly arranged on the outer surfaces of the main filtering screen and the assistant filtering screen; one end of a main cone-shaped pipe is arranged on the main filtering screen, and a nylon fiber net is arranged on the opening of the main cone-shaped pipe; one end of an assistant cone-shaped pipe is arranged on the assistant filtering screen, the other end of the assistant cone-shaped pipe is connected with the other end of the main cone-shaped pipe, and a nylon fiber net is arranged on the opening of the assistant cone-shaped pipe; a plurality of seedling hanging rods are evenly arranged on the outer walls of the main cone-shaped pipe and the assistant cone-shaped pipe, a plurality of clamping grooves are formed in each of the seedling hanging rods, and a main buoy is arranged on the main filtering screen.

The invention discloses a breeding method for siniperca chuatsi. The method comprises the following steps that 1, a breeding pond is divided into a breeding area and a water quality control area by afirst purse seine, a first aeration device is installed in the water quality control area, the breeding area is divided into a concentration area and a growth area by a second purse seine, a second aeration device is installed in the growth area, and the total area of the breeding pond is A mu; 2, filter-feeding fishes and benthic fishes are put into the water quality control area and fed with filter-feeding fish feed and benthic fish feed; 3, 8-12 days later, siniperca chuatsi each of which is 6-12 g in specification is put into the concentration area, the putting quantity is 2,000-4,000 A, and the siniperca chuatsi is fed with siniperca chuatsi feed; 4, after the siniperca chuatsi is bred in the concentration area for 5-15 days, the second purse seine is removed. The breeding method forthe siniperca chuatsi can ensure that the water quality of a breeding farm is good and stable, and achieves a good breeding effect.