32results about How to "Avoid killing each other" patented technology

The invention discloses a method for culturing soft blue crabs indoors. The method comprises the following steps of: constructing a culture pond; making culture baskets; arranging the culture baskets; stocking crabs to be cultured; managing the culture and collecting soft crabs. Horizontal shelves are arranged in the culture pond so that water and air in the culture baskets are favorably exchanged like in natural environment. Meanwhile, dirt in the culture baskets is lessened to benefit the growth of the blue crabs in the baskets and lessen diseases, the culture baskets are respectively provided with hidden chambers containing sediment to naturally accommodate the blue crabs, benefit the growth of the blue crabs, reduce the interference of outside on the growth of the blue crabs and improve the survival rate, and the blue crabs are cultured in respective culture baskets to avoid a phenomenon of mutual fighting among individuals and improve the survival rate in the culture process. Accordingly, the method for culturing soft blue crabs indoors has higher survival rate and good culture benefits.

The invention provides a wine barrel and belongs to the technical field of wine drinking equipment. The wine barrel solves the problem that an existing wine barrel cannot be filled with wine smoothly, and comprises a barrel body made of rigid material, a bag body made of flexible material and a wine outlet valve. The wine outlet valve is located at the barrel opening of the barrel body. The bag body is arranged in the barrel body and is fixedly connected to the wine outlet valve. The volume of the bag body in an unrestricted state is greater than the volume of the barrel body. The bag body is continuously folded into a long strip in a Z shape, and the folded bag body of the long strip shape is located inside the barrel body in an integrally-bent state. The wine barrel is more convenient in assembly and can be filled with the wine more smoothly.

The invention provides a manual expanding propagation method and special equipment thereof for worm grass host insects. The manual expanding propagation method includes an egg stage, a larva stage, a pupa stage and an imago stage. The manual expanding propagation method is the method adopting single insect separating cultivating method in the larva stage and the pupa stage of the worm grass host insects. The condition that the host insects kill each other and spread diseases to each other is avoided; besides, a water leaking groove is arranged at the inner bottom of a box I, and water remaining in the water leaking groove is utilized to keep humidity of moisture-preserved materials. Structure of worm grass host insect cultivating plates is stable and can be overlapped during the process of host insect cultivation, so that space is effectively utilized and the manual expanding propagation method and the special equipment thereof for worm grass host insects can be utilized to produce in large scale.

The invention relates to a layered cage rearing device and a using method thereof. The cage rearing device comprises at least one cage body, wherein the cages are overlaid to form a group; a movable feeding door is arranged on the lateral side of the cage body; round holes are formed on the cage separator and coaming of the cage body; the cage body is formed by two pairs of symmetric arc edges and straight edges; a plurality of through holes are formed symmetrically on the outer rims of the arc edges; and a lantern ring is arranged in the center of the top of the cage body. By using the device and the method, the raising density is increased to 4,000 to 12,000 crabs per Mu from hundreds of crabs per Mu, 6 to 20 crabs can be reared in every square meter (on square meters, the raising density includes soil pond raising, and also can be used as calculation bases for indoor high-density raising), so that mutual killing among crabs is completely avoided, and the survival rate of the crabs is improved.

The invention discloses an ecological breeding method of giant salamanders. The ecological breeding method comprises step 1, pond building which comprises building a plurality of breeding ponds in a natural cave; step 2, seedling throw which comprises selecting healthy disease-free seedlings which are bred artificially and throwing the seedlings into the small ponds or the large ponds according to the size and the strength of the seedlings, wherein 15 to 20 seedlings are thrown into every pond; step 3, bait feeding which comprises directly throwing fresh baits into the pond water according to the 10 to 15% of the total weight of the giant salamanders and performing the attachment breeding of small trash fishes, loaches, cold water shrimps and crabs ; step 4, daily management which comprises controlling the water level, maintaining the water temperature to be 16 to 20 DEG C and a ph (potential of hydrogen) value of the pond water to be 7.0 to 7.5, performing regular disinfection on a water body through bleach or chlorine dioxide and mixing the allicin, gallnut or rhubarb powder into the baits to perform once feeding every 15 days. According to the ecological breeding method of the giant salamanders, the constant breeding temperature of the natural cave and the weak base water quality formed by the Karst landform cave are beneficial to the growth and reproduction of the giant salamanders and accordingly the life of the giant salamanders is long, the nature of the giant salamanders does not degrade, the incidence of diseases is reduced, and the growth and reproduction rate and the survival rate are improved.

The invention discloses a breeding method for late-maturing blue crabs, and relates to the technical field of aquaculture. The method comprises the steps of site selecting, nursery pond constructing, nursery pond water quality controlling, crab seeding selecting, bait matching, feed feeding, nursery pond water quality managing, harvesting and the like. According to the breeding method for the late-maturing blue crabs, the blue crab breeding season is adjusted so that the traditional harvest peak season of blue crab breeding in south of China can be staggered, and the fresh and cheap blue crabs are supplied to consumers of the untraditional blue crab harvest season.

The invention relates to a crab cage culture module with a connecting device and a system thereof. The crab cage culture module comprises a crab cage and a buoy device. The buoy device comprises a short edge barrel, a long edge barrel and a quarter turn joint. The short edge barrel and the long edge barrel form a rectangular frame through the quarter turn joint. Connecting locking devices for being connected with a plurality of crab cage culture modules are installed on a long edge and a short edge of the rectangular frame, and the crab cage is installed in the rectangular frame. The system is formed by the plurality of crab cage culture modules which are shaped like a Chinese character ao. When the crab cage culture module and the system are used for cultivation, centralized and unified processing is greatly facilitated, the survival rate of crabs is improved, and acre yield is increased by several times.

The invention relates to the technical field of aquaculture, in particular to a shrimp and crab mixed breeding system for an offshore breeding pool. The shrimp and crab mixed breeding system solves the technical problems of low breeding efficiency, low intensive degree and the like of the existing system for breeding shrimps and crabs by seawater. A system for breeding shrimps and crabs by seawater comprises a seawater purification device, a seawater warming device, a sewage treatment device, a breeding pool, a temporary breeding pool and a crab device. A breeding method comprises the following steps that A, the seawater is purified, and the purified seawater is warmed; B, the warmed seawater is conveyed to the temporary breeding pool, the breeding pool and a breeding box; C, shrimp larvas are transferred into the breeding pool, the shrimp larvas are bred into adult shrimps, and crab larvas are bred into adult crabs; D, the adult shrimps are caught, rich water is disinfected for repeated shrimp breeding, the adult crabs are caught, and the crabs are repeatedly bred. The shrimp and crab mixed breeding system has the advantages that the breeding efficiency is good, the intensive degree is high, the survival rate is high, and the like.

The invention discloses a pond ground cage capable of accurately catching freshwater shrimps. Couplings with adjustable internal diameters are installed on one-way cage bodies on side faces. The pond ground cage is designed according to different figure features and different activity life habits of the freshwater shrimps and river crabs. To enable the freshwater shrimps to enter the ground cage smoothly and prevent the river crabs from entering the ground cage, the couplings with the adjustable internal diameters are arranged on the side faces of the ground cages, the internal diameters of the couplings are smaller than the smallest size of the river crabs but larger than the maximum diameter of the freshwater shrimps. Only the internal diameters of the couplings need to be changed when the freshwater shrimps are caught at different periods, and then the freshwater shrimps can be caught more accurately, the number of the river crabs entering the ground cage can be reduced to the maximum extent. The actual use verifies that when the pond ground cage is used for catching the river shrimps in a shrimp and crab mixed breeding pond, the number of the river crabs entering the cage can be reduced to the maximum extend, mutual killing of the river crabs in the ground cage can be avoided, the situation that the river shrimps are swallowed by the river crabs is basically eliminated, the yield of the river shrimps entering the cage is guaranteed, the workload of manual sorting of the crabs and the shrimps can be lowered to the maximum extent, and the composite economic results of a farmer can be improved.

The invention discloses an energy-saving environment-friendly household aquarium, comprising a base; a first aquarium body is arranged above the base; second aquarium bodies are arranged around the first aquarium body; the bottom of the first aquarium body is fixedly fitted with a connecting shaft; the first aquarium body is fixedly mounted inside the base through connecting components; one end, far away from the first aquarium body, of the connecting shaft is provided with a rotary driving component; each of the four corners of the bottom surface of the base is fixedly fitted with a self-locking universal wheel; first jaws are symmetrically arranged on the outer wall of the first aquarium body; one side of each first jaw is provided with a counter bore; the outer wall of each second aquarium body is symmetrically provided with second jaws; a spring plunger is fixedly screwed on one side of each second claw; and a first water pipe and second water pipes are fixedly mounted at the bottoms of the first aquarium body and the second aquarium bodies respectively. The purchase fee is saved, and the energy-saving environment-friendly household aquarium is convenient for culture lovers tooperate routinely.

The invention provides block type ecological pond breeding and seedling raising equipment. A pond is divided into a breeding block, an incubation block and a seedling raising block which are connectedin sequence, and an aerating apparatus is arranged in the pond; a first grid frame is arranged between the breeding block and the incubation block, a second grid frame is arranged between the incubation block and the seedling raising block, and air outlets of the aerating apparatus are arranged in the breeding block, the incubation block and the seedling raising block. The invention further provides a block type ecological pond breeding and seedling raising equipment. The pond is divided into the three functional blocks specific in ecological environment, the block functions are optimized, para-ecological conditions of gonad in natural development and maturation, natural spawning, hatching and seedling are accurately met, and the spawning rate, hatching rate and seedling rate are significantly increased; the three blocks are integrated orderly and automatically through small and large cycles and finally integrated into a one-way circulation water high-density seedling system, and breeding and seedling raising efficiency is comprehensively improved.

The invention relates to a blue crab individual frame indoor cement pit breeding device and a breeding method thereof. The breeding device comprises shelves arranged at the bottom of a cement pit in an erecting mode, and gaps between adjacent shelves are 100-150mm. Breeding boxes are placed on the shelves and made of organic glass or plastic materials. Each breeding box is divided into two spaces through a splitter plate in the length direction, a clamping groove is arranged in a side wall in the middle of each breeding box, the clamping grooves are matched with the splitter plates, an opening is formed in the middle of the upper surface of each breeding box, a cover is arranged in the middle of the upper surface of each breeding box, shielding plates are arranged at two ends of the opening on the upper surface of each breeding box, and the shielding plates shield the two ends of each breeding box to form a shielding box. Two blue crabs are placed in each breeding box and are bred independently through the splitter plates. The blue crab individual frame indoor cement pit breeding device and the breeding method thereof are strong in flexibility, easy to assemble, convenient to observe, and labor-saving and time-saving to clean. In addition, the blue crabs are bred independently, mutual killing is avoided, and breeding survival rates are high, and therefore the blue crab individual frame indoor cement pit breeding device and the breeding method thereof can be widely applied to breeding production and scientific research activities.

The invention discloses a breeding method for scorpion, and relates to the technical field of breeding of special animals. The breeding method comprises the steps of temperature and humidity control,molting management, feeding management and natural enemy control, wherein the scorpion is fed on first live worms in 15 to 20 days before molting; during molting of the scorpion, cement balls containing active carbon are placed in a scorpion room for the scorpion to climb and rub; the scorpion is started to be fed on second live worms in 3 to 5 days after molting; the first live worms are Tenebriomolitor which are bred by using sesame cakes, bean cakes, wheat bran, corn flour and vitamins as feeds; and the second live worms are Tenebrio molitor which are bred by using wheat bran, corn flour,bean cakes, vitamins, bone meal and saprolite as feeds. The breeding method provided by the invention can reduce the incidence rate of the scorpion in a molting period and increases the survival rateof the scorpion.

The invention relates to a high-pressure oxygen-enrichment breeding box for blue crabs and discloses a breeding box which promotes the growth of blue crabs by carrying out regional breeding on crab larvae through region segmentation in a closed breeding box and by oxygenating the closed breeding box to increase the pressure intensity of water in the box and form a high-pressure oxygen-enrichment environment. The breeding box is characterized in that a breeding frame is placed on a bottom box, the junction of the breeding frame and the bottom box is arranged to be a slope, and the height of thebottom box is gradually increased from one side to the other side; a water inlet pipe is arrange at one side of the breeding frame and located at the lowest position, the water inlet pipe is providedwith multiple branch pipes through extension, and the branch pipes are communicated with the breeding frame separately; a water return pipe is arranged at one side of the breeding frame, located overthe water inlet pipe and provided with multiple branch pipes through extension, the branch pipes are communicated with the breeding frame separately, the number of branch pipes of the water return pipe is identical to that of branch pipes of the water inlet pipe, and the diameter of the branch pipes of the water return pipe is a half that of the water return pipe.

The invention discloses a composite microbial preparation for promoting growth of aquatic crustacean shells. The composite microbial preparation is prepared from, by mass, 0.2 to 0.6 percent of bacillus megatherium, 0.5 to 1.5 percent of vitamin C, 4 to 12 percent of glucose, 0.5 to 1.5 percent of monocalcium phosphate, 10 to 20 percent of silicon-calcium-potassium-magnesium fertilizer and 70 to 80 percent of zeolite powder. The preparation method comprises the following steps: (1) respectively taking the components in proportion, and uniformly mixing to obtain a synthetic material; and (2) uniformly mixing with zeolite powder to obtain the compound microbial preparation. The application method comprises the following steps: (1) water quality regulation and splashing; and (2) splashing of the seedlings. Through ionization processing, the organic calcium and magnesium reach a good active state, the hydrolysis degree is high, and the organic calcium and magnesium are very easily absorbed and metabolized by aquatic crustacean; the shelling growth of the aquatic crustacean is quickly promoted; and active organic calcium, magnesium, phosphorus and various trace elements and mineral substances required by the growth of the crustacean are supplemented and maintained, and the effects of improving the physique and appearance of the aquatic crustacean, improving the commodity quality, improving the water quality and the like can be achieved after frequent use.

Disclosed is a cultivation method of pea crab seeds in the paddy field. The cultivation method includes the steps of 1), preparation of a cultivation pond, namely digging an annular trench and a diversion trench, preparing inlet and drainage facilities, performing disinfecting with quicklime, cultivating water quality and planting water peanuts; 2), raising of the pea crab seeds, namely at the beginning of May, raising young crabs with large eyes in the pond at the ratio of 2kg / mu; 3), fodder feeding, namely after 10 days of raising the large-eye larvae in the paddy field, performing fodder feeding at a fixed position and time every day, wherein fodder of the large-eye larvae is mainly based on free feeding of aquatic plants; 4), control of water quality and sediment, namely applying photosynthetic bacteria and nitrifying bacteria to maintain dissolved oxygen content in water and changing water once every 5 days from May to March of the next year; 5), harvest of the pea crabs, namely performing fishing in December of the year and January to March of the following year. In the method that the pea crabs are cultivated under paddy field conditions, the yield of 150g per mu of the peacrabs can be realized, the pea crabs are strong in growth and good in the immunity and adaptability, and the yield of the pea crabs per unit water body can be effectively increased.

The invention discloses a pond ground cage for catching crayfishes, comprising a barrel-shaped netted bag and keels, wherein, the keels are equally spaced and fixed on the barrel-shaped netted bag, a smooth board is arranged in the opening of the ground cage, the width of the smooth board is two fifth to three fifth of the perimeter of the cage opening and the length of the smooth board is more than 20 cm. The pond ground cage is designed according to the different climbing habits of crayfishes and river crabs, namely, the crayfishes can not climb up with claws but the river crabs do the opposite thing; thus, the pond ground cage for catching crayfishes in a crayfish and crab mixed-culturing pond can reduce the number of the crabs caught in the cage farthest, prevent the crayfishes and the river crabs from fighting with each other and facilitate separation of river crabs and crayfishes. The invention saves time and labor and has properties of economy and practicability due to simple structure, particularly applicable to ground cage catching of crayfishes in the crayfishes and river crabs mixed-culturing pond, reducing the labor intensity for manual separation and improving the culture benefit.

The invention relates to the technical field of coastal wetland sustainable utilization and aquaculture, and provides a blue crab culture device and a method for culturing blue crabs in tidal creeks. The blue crabs are cultured in the tidal creeks, the natural advantages of tidal creek flowing water after ebb tide are utilized, the environment requirement for survival of the blue crabs is met, and residual feed or excrement is automatically removed; the tidal creeks with high biomass provide part of food sources for the blue crabs, and it is guaranteed that the culture quality of the blue crabs is close to nature; residual feed generated by culture can provide food for animals in the surrounding area, and the animal biomass of the surrounding habitat can be improved; and low-concentration excrement is beneficial to the growth of plants. A sustainable way is provided for utilization of coastal wetland, a new space is opened up for culture of the blue crabs, and the economic income of coastal residents can be increased by harvesting the blue crabs.

The invention discloses an indoor manually controlled directional mating method of portunids, which can be used for propagation and cross breeding of portunids. In this method, an indoor cement pit is divided into a plurality of enclosures of 1-3 square meters by a 20-mesh straight net; portunids that weigh more than 180 grams are moved into the enclosures from an outdoor artificial cultivation pond. One male portunid and 1-3 female portunids are put into every enclosure, water exchange, air inflation and bait casting are carried out at a definite time. After the female portunids cast off a skin, the mating can be carried out, and after successful mating, the female portunids can be numbered on the carapaces. By using this method, the mating rate of portunids is higher than 80%, the wintering survival rate reaches 80%, and every portunid can hatch 600, 000 larvae in average.

The invention relates to a pseudosciaena crocea and green crab three-dimensional culture device and method. The pseudosciaena crocea and green crab three-dimensional culture device comprises a floating net and a crab pot. The floating net comprises a floating frame and meshes, wherein the floating frame is a closed polygonal framework, floaters are installed below the floating frame, the floaters are connected to the framework of the floating frame in a strip shape, the meshes are installed surrounding the floating frame in a circle, a container with a top opening is defined by the meshes, and the top opening is matched with the floating frame in shape. The crab pot is placed on the floaters, wherein the side wall of the crab pot is provided with a through hole, and a cover is arranged on the crab pot in a matching mode. The pseudosciaena crocea and green crab three-dimensional culture device and method have the advantages that cage culture of pseudosciaena crocea is realized, and aquatic water is fully utilized at the same time; cage culture of individual green crabs is carried out on an upper layer of a net cage, so that mutual killing of the green crabs is avoided, and the survival rate is up to 95%; besides, bait is fully utilized, the number of waste residues is small, the self-cleaning capacity of the aquatic water is enhanced, balance of the fishery ecological environment is realized, economic benefits are obtained, and the carbon sink function of fishery is also effectively achieved.

The invention provides a shrimp-crab mariculture system and a shrimp-crab mariculture method, which belong to the field of aquaculture techniques and are used to solve the technical problem that existing shrimp-crab mariculture systems are low in cultivation efficiency, low in intensive degree and the like. The shrimp-crab mariculture system comprises a seawater purification device, a seawater heating device, a sewage treatment device, a culture pond, a temporary culture pond and a crab breeding device. The shrimp-crab mariculture method includes steps: A, purifying seawater, and heating the purified seawater; B, delivering the heated seawater to the temporary culture pond, the culture pond and culture boxes; C, transferring shrimp seeds to the culture pond, breeding the shrimp seeds into adult shrimps, and breeding crab seeds into adult crabs; D, catching the adult shrimps, disinfecting rich water to breed other shrimps, and catching the adult crabs to breed other crabs. The shrimp-crab mariculture system and the shrimp-crab mariculture method have the advantages of high breeding efficiency, high intensive degree, high survival rate and the like.

The invention discloses a method for cultivating Spanish mackerel. Spanish mackerel grows appropriately and better by controlling cultivation condition, cultivation density, bait acclimation, iced and fresh fish feeding management and the like and maintaining appropriate water depth, appropriate water temperature, appropriate salt range, appropriate cultivation density and the like, then fresh and alive small trash fish is used for gradually acclimating until iced and fresh fishes are taken as feeding bait, and the iced and fresh fishes are thrown and fed every 2-3 times in the day when acclimating so as to prevent the Spanish mackerels from killing each other frequently owning to insufficient bait is thrown and fed, thus killing rate is relatively low, survival rate during cultivation reaches up to more than 30%, and cultivation efficiency is higher.

The invention relates to an odontobutis obscura fry grading cultivation method, which is characterized by comprising the following steps of: firstly, carrying out first-time screening on seedlings after emergence in an indoor nursery pond in late April every year, secondly, carrying out second-time screening between 10 to 15 days of first-time fry putting in early May every year, and thirdly, carrying out second-time screening between about 15 days of second-time screening in mid-late May every year, fourthly, the odontobutis obscura is screened for the fourth time 18-20 days after the third time of screening, the odontobutis obscura is screened through a 4-mesh screen, the specification of the upper portion of the screen is 1.55 / g, and the overall length of the upper portion of the screen is about 3.5 cm; the specification of the lower surface of the screen is 3.3 / g, and the overall length of the odontobutis obscura is about 2.5 cm. By means of regular screening, the odontobutis obscura of different specifications is cultivated in a grading mode, the odontobutis obscura of different specifications is prevented from killing one another, and the survival rate is remarkably improved.

The invention provides a bamboo rat vegetative growth feeding feed. The feed comprises the following raw materials in parts by weight: 2-20 parts of amino acid, 15-50 parts of bamboo, 1-30 parts of wheat bran, 6-15 parts of corn straw, 5-40 parts of couch grass, 1-20 parts of muscle powder, 1-15 parts of carrot powder and 2-10 parts of bamboo juice. According to the feed, healthy production of thebamboo rats is effectively improved, restlessness of the bamboo rats is conveniently reduced, mutual killing among the bamboo rats is avoided, the production efficiency of the bamboo rats is conveniently improved, the yield of the bamboo rats is greatly improved, meanwhile, the morbidity risk of the bamboo rats is reduced, growth of meat bodies of the bamboo rats is facilitated, mass production is facilitated, and the production cost is effectively reduced.

The invention discloses a method for breeding shrimp seeds in autumn and application. The method comprises five steps of rice field selection and transformation, aquatic plant cultivation and maintenance, parent shrimp selection and cultivation, water level and water quality management and juvenile shrimp cultivation. According to the method for breeding the shrimp seeds in autumn and application, the technical problems that existing crayfish fry breeding is mainly conducted in spring, late seedling emergence and low survival rate exist in autumn fry breeding, and the crayfish is limited to appear on a market in early spring are solved. Multiple key technologies such as the aquatic plant selection and planting, the parent selection and cultivation, water level and water quality regulation and control and juvenile shrimp feeding in the breeding process are explored and innovated, so that yield, specification and quality of breeding the shrimp seeds in autumn are remarkably improved, the breeding method is simple, easy to implement, ecological and efficient, compared with breeding the seeds in spring, the period is shorter and the survival rate is high, and the problems of shrimp seeds vacancy in autumn and insufficient shrimp supply in winter are solved.

The present invention provides an indoor cement pond scylla paramamosain family construction method. A used breeding system is located in a light and temperature controllable environment, the breedingsystem comprises a breeding pond, and the breeding pond is internally provided with breeding regions isolated from each other; the breeding regions are laid with gravels and fine sand; the breeding regions are constructed by plastic grids; and the breeding regions are also provided with anti-escape nets. Through the constructed breeding system, mutual killing and influence of scylla paramamosainduring reproductive eclosion are effectively avoided, directional mating can be accurately performed, a male parent and a female parent of a first filial generation can be accurately selected and tracked, and controllable directional breeding is performed. Moreover, diatoms, sinonovacula constricta and scylla paramamosain are used to jointly control the stability of a water body, thereby effectively avoiding eutrophication of the water body and preventing and controlling outbreak of algae and oxygen deficit of the water body at night.

The invention discloses a micropterus salmonides culture method. The method comprises the following steps of culture pond preparation, preparation before stocking, net cage grading, grading feeding, water quality management and catching. According to the micropterus salmonides culture method, the culture mode that culture ponds are combined with culture net cages is adopted, a good growth environment is provided for the growth of micropterus salmonides. Through a scientific and reasonable feed proportion, comprehensive nutrition is provided for the growth of the micropterus salmonides. The methods of grading culture and gradient feeding are adopted, and therefore the situation is effectively avoided that the micropterus salmonides kill each other because of overlarge differences among individuals in the feeding process, the survival rate of fish fry is increased, and the economic benefits of culturists are guaranteed.

The invention discloses a no-killing and efficient feeding device for scorpions in order to overcome defects that scorpion feeding devices suitable for industrial manufacture are lacking in conventional scorpion feeding, a lot of scorpions kill each other, the feeding efficiency and benefits are low and the like. A feed worm zone and a moisture keeping zone are arranged on two sides of a scorpion zone, the feed worm zone, the moisture keeping zone and the scorpion zone form a scorpion feeding unit, a plurality of scorpion feeding units are connected to form a whole opening mold, batch production can be performed, feed worm passing ports are formed in the bottom surfaces of feed worm passing zones, a stay delaying partition is arranged between a feed worm staying zone and the corresponding feed worm passing zone, water passing ports are formed in the bottom surfaces of water passing zones, and a sandy oil partition is arranged between one sandy soil zone and the corresponding water passing zone. The device is used for feeding the scorpions and has complete functions, the function zones are scientifically and reasonably arranged, the device is very suitable for growth and development of the scorpions, can prevent the scorpions from killing each other, is suitable for industrial batch production and is low in manufacturing cost, convenient to use and operate and high in efficiency, and the scorpion feeding benefits can be remarkably improved.

The invention discloses a breeding method for late-maturing blue crabs, and relates to the technical field of aquaculture. The method comprises the steps of site selecting, nursery pond constructing, nursery pond water quality controlling, crab seeding selecting, bait matching, feed feeding, nursery pond water quality managing, harvesting and the like. According to the breeding method for the late-maturing blue crabs, the blue crab breeding season is adjusted so that the traditional harvest peak season of blue crab breeding in south of China can be staggered, and the fresh and cheap blue crabs are supplied to consumers of the untraditional blue crab harvest season.