CN103891660B - A kind of three-dimensional method of bringing up fertile swimming crab temporarily and cultivating soft crab of indoor circulating water - Google Patents
A kind of three-dimensional method of bringing up fertile swimming crab temporarily and cultivating soft crab of indoor circulating water Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The three-dimensional method of bringing up fertile swimming crab and cultivation soft crab temporarily of indoor circulating water belongs to an aquaculture field, and it comprises cultivation equipment and cultivation step.It both provided for investor the project that can obtain sudden huge profits, again for a good deed has been done by society.Owing to being bring up fertile crab temporarily at indoor circulating water stereo ecological and cultivate soft crab, a tangent condition is controlled, and strict follow procedure performs, the crab that the crab of producing and soft crab quality cultivate apparently higher than the crab that natural world grows with other approach.Simultaneously this cultivator has done isothermal holding, can reduce energy waste, reduce aquaculture cost, solves people and to worry maximum problem to indoor circulating water three-dimensional culture aquatic products; A monitoring camera monitors the growing state of tens of crabs, alleviates the labour intensity of staff, can reduce labor cost, also ensure that product quality simultaneously; Live soft crab profit on sales higher than freezing soft crab, investor can be allowed to obtain higher profit.
Description
Technical field:
The present invention relates to aquaculture, specifically a kind of three-dimensional method of bringing up fertile swimming crab temporarily and cultivating soft crab of indoor circulating water.
Technical background:
Crab (this method specially refers to swimming crab, lower same) delicious meat, nutritious, existing edibility, has medical value again, is deeply loved by the public since ancient times.
Consumer likes eating crab, but the thin crab ghost crab that crab has half is caught in the sea that market is sold, and consumer has ghost crab unavoidably.Consumer spends to have a bag water, do not order the ghost crab of meat, who does not get angry? every day, the quarrel sound caused because of crab ghost all can be transmitted in market.
When consumer eats crab, run into a bag water, do not order the ghost crab of meat, all can think the black heart of retailer, cause to crab water filling.Everybody treats unjustly retailer! One bag water, the ghost crab of meat of not ordering, in fact from one to drag for be exactly so in the sea, this is a kind of state in crab process of growth.Need the shell through nearly more than 20 times all one's life of crab, crab sloughs off a shell and just grows up once.Crab is the most fertile before shell, and just sloughed off lower casing just like a soft meat, crab at this moment just cries soft crab, no matter is similar or foreign peoples wants to eat it, and each shell crab is all faced with a danger spot! This is also that in the Nature, crab survival rate is low to the reason less than 20%.Back cover gradual change in several hours is hard, and it has also just reduced into ghost crab.Crab is constantly reduced by fertilizer, then grown fat by thin exactly like this, grows up day by day.Trample middle observation factually, crab often sloughs off a shell approximately needs 3 ~ 20 days, and that is 20 days ghost crabs just become fertile crab at most.
Soft crab is the same with ghost crab, is all a kind of state in crab process of growth.At occurring in nature, the mankind seldom have an opportunity to see soft crab, say nothing of and have had.First its natural enemy is too many, no matter is similar or foreign peoples wants to eat it; Secondly, soft crab in a short period of time shell can be hardening, becomes ghost crab.Soft crab not only remains the delicious and nourishing of substance crab, and also can eat because connecting shell, add abundant nutriment, we can absorb the sixth-largest biological element ~ chitin that human body lacks from shell.Chitin is animal fiber element, and at occurring in nature, be only present in it shellfish, chitin has very large effect to human body, energy toxin-expelling and face nourishing, and blood fat-reducing blood pressure-decreasing, reduces cholesterol, and can improve the immunocompetence of human body, play the effect of cancer-resisting.Chitin is current universal time except motion, the most natural slimming foods, to health without any side effect.Soft crab containing abundant free calcium, is also the best food that old child replenishes the calcium.
There is several method introducing cultivation soft crab at present, be all mention soft crab in a kind of " method of culturing soft blue crabs indoors " of 201010509991.8 to gather if publication number is CN101755679A " producing the method for soft crab with Portunus trituberculatus Miers " and application number: during the Portunus trituberculatus Miers cultivated shells, a Portunus trituberculatus Miers shelling situation is checked every 2 ~ 3 hours or 2 ~ 4 hours, the soft crab that timely collection has shelled, frozen.Observe in practice, crab shell, sometimes very fast, about more than ten minutes complete with regard to shell; Sometimes very slow, look at and want shell, reality several hours and even a few talent slough off lower casing.Just sloughed off the soft crab of lower casing just like a soft meat, soft crab quality is at this moment best.Soft crab water suction is very fast, and health will expand a little while, and soft crab quality at this moment declines.Be filled the soft crab that water expands, within several hours, shell is hardening gradually, just becomes ghost crab.Therefore, check that the way of a Portunus trituberculatus Miers shelling situation is worthless every 2 ~ 3 hours or 2 ~ 4 hours.
The fishing season of swimming crab has spring and autumn twice in 1 year, and Yellow Sea and East China Sea annual production respectively has 1-2 ten thousand tons.Only open sea autumn, the crab that Qingdao City sells to market every day just reaches 300,000 jin, and through measuring and calculating, little crab here, thin crab, ghost crab have nearly 200,000 jin.Consume little crab, thin crab, ghost crab only not in the resource that waste is limited! Every only crab wholesale price of about half jin rolls that basket is mixed sells 22 yuan/jin, challengees fertile just selling 48 ~ 50 yuan/jin and first sell by oneself, and the ghost crab choosing under 5 ~ 6 yuan/jin goes back that nobody want.Here a sudden huge profits project is contained?
Swimming crab is because growing rapidly, and cultivate lucrative, become important breed variety, cultural technique is very ripe at present.Crab cultivation requires that the crab of same size could be supported together, otherwise the internecine habit of crab makes survival rate only can reach less than 20%; Have requirement to cultivation density, 1000-1500 is only supported at most in every mu of pond, average every square meter Cultivated water just 2; Requiring the dissolved oxygen in aquaculture water preferably could more than 8 mg/litre, could not lower than 5 mg/litre, and someone says 2 mg/litre, so causes serious injury to crab, it will be argued that it is worthless! Otherwise easily cause the unsuccessful death of shell; Have requirement to water temperature, water temperature is when 15-26 DEG C, and food ration is large, and growth is the fastest, and water temperature is lower than 10 DEG C or just do not ingested higher than 32 DEG C of crabs, impact growth; The substrate of culturing pool requires excellent, and the substrate degenerated easily grows germ, and crab easily catches an illness death.
Current China coast coastal seawater is subject to industrial or agricultural in various degree and shallow sea and exceeds standard the pollution of cultivation, and it is a common problem that heavy metal in sea water exceeds standard.Heavy metals exceeding standard jeopardizes food security, affects products export, must cause concern!
Crab is supported temporarily just can fatten shell in general about 3 ~ 20 days, and from little form generally need half a year about, crab is foster than saving long time from little forming temporarily, also just can save a large amount of cost payouts, cause the attention of people gradually.How everybody adopts intensive culture to improve culture benefit in exploration, and indoor circulating water three-dimensional culture is subject to everybody gradually with incomparable advantage and pays close attention to.The crab apartment that application number as the applicant: 201210490837.X catches in a sea method introduction that swimming crab is fattened is supported temporarily, and to be that current indoor circulating water is three-dimensional support more successful example temporarily, which overcomes many drawbacks that pond is supported temporarily and sea cage is supported temporarily.The large little crab of crab due at indoor circulating water three-dimensional culture, allows every crab all live separate room, do not need to consider crab specification problem, no matter can be supported simultaneously; Also solve cultivation density problem, cultivation density brings up to every square meter about 100 by every square meter Cultivated water about 2 of pond culture; Independently to throw something and feed bait, ensure that every crab can absorb bait; Because coordinative composition of equipments has water temperature control device, water temperature can be adjusted to the optimum temperature 15 ~ 26 DEG C of crab growth, allow crab grow fast.Find in practice that crab apartment is supported temporarily and also there are some defects urgently to be resolved hurrily: breeding box etc. do not have heat insulating ability; Heating and the refrigeration of water temperature are carried out in open type tank, cause temperature leak, cause water temperature control device to work without cessation, waste resource, increase aquaculture cost, worry that aquaculture cost height is people and worries maximum problem to indoor circulating water three-dimensional culture aquatic products; Spray water filling, sound greatly easily stimulates crab, easily makes crab produce stress reaction; The dissolved oxygen spraying water filling oxygenation generation is not high enough, easily causes crab shell unsuccessful; Water injection hole easily blocks, once it is dead because of anoxic to find to cause crab not in time; Aquaculture water easily overflows simultaneously, causes breeding environment severe; Because crab ight soil, residual bait are by manually removing with dredger, both stimulate crab continually like this, easily making crab produce stress reaction, remove again thorough not, add that in breeding box, dissolved oxygen does not have enough height, easily causes germ reproduction; Crab suffers the infringement of germ, and crab body spreads all over blackspot, affects crab quality, has a strong impact on sale; Because aquaculture water takes from natural sea-water, directly use, heavy metal in sea water excessive problem can not solve.Crab apartment space-closed, is independently one by one, is not suitable for remote reviewing, observe to arrive and nearby observe, and management is got up to require great effort time-consuming.
In order to solve my application number: 201210490837.X catches in a sea crab apartment that method that swimming crab fattens introduces and supports temporarily and exist such as: water temperature runs off, water injection hole easily blocks, dissolved oxygen is inadequate, substrate easily worsens, the crab easily defect such as sick, heavy metals exceeding standard, and the applicant have developed a kind of indoor circulating water stereoscopic multipurpose aquatic products ecology rearing device.It adds heat-insulation layer, intake-discharge pipe road and tank isothermal holding by breeding box casing and saves the energy; Water inlet pipe direct-furnish is utilized to there is not blockage problem; Neither stay dead angle by cultivation bottom half interlayer micro-pore oxygenation, ensure that again dissolved oxygen is sufficient; Utilize sufficient dissolved oxygen supply to cultivate beneficial bacterium to suppress harmful bacteria, decompose the residual bait of ight soil, utilize medical stone Adsorption of Heavy Metals to purify water, utilize coral sand adjust ph; Solve crab by dismountable punching division board to fight problem.There is good substrate like this, the generation of crab disease can have been reduced, having laid a solid foundation for producing green non-pollution food; Suitable water temperature, saturated dissolved oxygen can improve crab cultivation density, improve survival rate and feed conversion rate, promote crab growth, reduce the breeding production cycle.How could that support good crab temporarily?
Summary of the invention:
The object of the invention is to solve fishery resources waste, sea catches crab ghost problem, consumer is allowed only to eat fertile crab, and allow consumer have instant, more nutritious soft crab further, and a kind of three-dimensional method of bringing up fertile swimming crab temporarily and cultivating soft crab of indoor circulating water is proposed.
The object of the invention is to be reached by following measure, a kind of three-dimensional method of bringing up fertile swimming crab and cultivation soft crab temporarily of indoor circulating water comprises cultivation equipment and cultivation step; It is characterized in that, the ecology rearing device that a kind of indoor circulating water stereoscopic multipurpose aquatic products ecology rearing device that described cultivation equipment comprises me is introduced and monitoring camera; Described ecology rearing device comprises breeding box, shelf, biofilter, tank, water circulating pump, aquaculture constant temperature machine, aerator and connecting line water inlet pipe, drainpipe, appendix and water inlet pipe check (non-return) valve, appendix check (non-return) valve; Described monitoring camera is arranged on bottom the shelf plywood above breeding box, and described monitoring camera is connected with the DVR display in Control Room; At least set up a sand filter and water tank before described biofilter and tank water inlet pipe, described sand filter is connected with sea water pump with water tank; Described cultivation step comprises: throw in the preparation before crab, first will clean equipment, disinfect; With sea water pump from natural waters or underground sea water well extracting seawater to sand filter and water tank, from the seawater that underground sea water well extracts, must adjust the salinity of water, pH value, to reach, to fish for marine site salinity with crab identical, in water tank, carry out heavy metal degraded and disinfection to water body; After a time, inject clean sea water toward biofilter and tank, open aerator, water circulating pump, useful vaccine of splashing, support water about two days, cultivated beneficial bacterium;
Crab is collected: crab first will understand fully water Inversion phenomenon and the pH value in received crab marine site before collecting, ready for supporting temporarily below; The annual lunar calendar rises the first month of the lunar year, all can some little crab at fishing wharf, does not have meat to be thrown away by fisherman, can pack up successively, take care of the pence, because weather in this time is also cool, directly transport because of little; Along with temperature raises, need during transport to do cooling process, in order to avoid crab fights, need binding crab chela or layering isolation; In autumn, purchase thin crab ghost crab to fishing wharf or culturing pool, need during transport to do cooling process; So-called cooling process, is placed on crab in the refrigerator car of about 12 DEG C exactly, covers, the dry fortune of moisturizing, and be equipped with oxygen cylinder or oxygen bag slow dispenser oxygen in air with the straw bag of dipped seawater or cotton or filter cloth or sponge;
Crab transports cultivation base back, must first exposedly in indoor shelve, carry out temperature adjustment, adjust to differ with water temperature ± 3 DEG C within, adjust the salinity of water, pH value, with salinity change per hour compared with fishing for marine site with crab within 2 degree, pH value change is within 0.3, be put into again in thimerosal and soak 5 ~ 10 minutes, could put in breeding box after disinfection process; First every crab is weighed, then crab chela is untied, after be put in the separate room of the trade mark of bidding be made up of dismountable punching division board, a crab is put in a separate room, and separate room size adjusts according to crab size;
Daily management: every day to throw something and feed bait by 10% of crab body weight, and the situation according to eating adjusts flexibly, entirely eats up, and adds next time a little, has residue, and next time just subtracts a little, 5 ~ 6 o'clock bait throwing at dusk accounts for 70%, 5 ~ 6 o'clock bait throwing in early morning accounts for 30%; Bait is low value shellfish and small fish shrimp, will do disinfection process before bait feeding, and shellfish is wanted
the shell on broken one side, eats remaining residual bait and throws in new again before first sorting out; Find that bait is eaten bad, other bait be changed and decrement; What adopt due to this device is the cultivation of cycle water constant temperature, after finishing bait, just can be sitting in Control Room by display observation crab growing state, and place on record; Want special concern to those continuous crabs do not eaten food for or two days, a quarter of an hour observes one time to two quarters, finds that there is the crab of shell, takes out at once, does low temperature treatment;
That lives soft crab deposits process: immersion 20 ~ 30 minutes in the seawater soft crab alives of taking out being put at once 3 ~ 5 DEG C, from refrigerator-freezer, take out in advance dipped seawater and the storage-transport vessel introduced of the frozen sponge of quarrel and a kind of novel portable live-water products storage-transport vessel of the applicant simultaneously, sponge is laid in container, put soft crab, capping, oxygenation, sealing, put into refrigerator-freezer refrigerate for sale or insert the applicant a kind ofly strengthen thermal-insulating type insulation and wrap the insulation bag introduced and consign;
The way of a quick obtaining soft crab: the crab choosing those two layers to fishing wharf or cultivating pool or fishery market, i.e. public crab legs pinkiness, crab white belly is to crust tip; The crab of two female crabs i.e. triangle navel, navel presents pink or red-black phase secondary color, is put in equipment and supports temporarily, do not need feeding, just can obtain soft crab in the same day or one or two days;
Points for attention: 1. indoor circulating water cultivation is very strong to the dependence of power supply, for preventing power-off, should be equipped with stand-by generator;
2. should be equipped with water quality monitoring equipment and articles for use thereof, cultivate water is accomplished intracardiacly have number, find not to be inconsistent requirement, at once adjustment;
3. to be equipped with fresh-keeping reach in freezer, both can refrigerate in time results product, again can to bait fresh-keeping storage;
4. fatten due to crab and occur that dead crab is unavoidable, cultivate soft crab generation crab shell and be inevitable, therefore will be equipped with drying plant, carry out drying and processing to the Carapax Eriocheir sinensis produced and dead crab, this also can obtain high profit;
5. for purchase arrive with female crab of bright Huang, fertilizer can only be brought up temporarily to it, fertile to sell at once, can't be used for cultivating soft crab;
6. this method both may be used for the temporary raising fertilizer of swimming crab and had cultivated soft crab, also can be used for the temporary raising fertilizer of other crab kinds and cultivated soft crab.
Beneficial effect of the present invention: crab is liked by masses deeply, but the existence of a large amount of thin crab ghost crab, both wasted limited resources in vain, and allowed again consumer spend to get angry unavoidably.Proposition of the present invention, both for investor indicates a project that can obtain great number sudden huge profits, again for a good deed has been done by society, consumer is allowed only to eat fertile crab, both saved limited resources, and turn avoid consumer and spend to get angry, more avoid the generation of contradiction between retailer and consumer.Because this method is brought up fertile crab temporarily at indoor circulating water stereo ecological and cultivates soft crab, one tangent condition is controlled, and strict follow procedure performs, the crab that the crab of producing and soft crab quality cultivate apparently higher than the crab that natural world grows with other approach.Simultaneously this method has done isothermal holding to cultivator, can reduce energy waste, reduce aquaculture cost, solves people and to worry maximum problem to indoor circulating water three-dimensional culture aquatic products; A monitoring camera monitors the growing state of tens of crabs, alleviates the labour intensity of staff, can reduce labor cost, also ensure that product quality simultaneously; Live soft crab profit on sales higher than freezing soft crab, investor can be allowed to obtain higher profit.The present invention both may be used for the temporary raising fertilizer of swimming crab and had cultivated soft crab, also can be used for the temporary raising fertilizer of other crab kinds and cultivated soft crab.
Accompanying drawing illustrates:
Fig. 1 is schematic flow sheet of the present invention.DVR display 81 in breeding box 1, shelf 11, biofilter 2, tank 3, water circulating pump 4, water pipe non-return valve 41, water inlet pipe 42, aquaculture constant temperature machine 5, aerator 6, tracheae non-return valve 61, appendix 62, drainpipe 7, monitoring camera 8, Control Room, water tank 9, sand filter 91, sea water pump 92.
Embodiment:
A kind of three-dimensional method of bringing up fertile crab and cultivation soft crab temporarily of indoor circulating water comprises cultivation equipment and cultivation step.
The ecology rearing device that a kind of indoor circulating water stereoscopic multipurpose aquatic products ecology rearing device that described cultivation equipment comprises the applicant is introduced and monitoring camera (8); Described ecology rearing device comprises breeding box (1), shelf (11), biofilter (2), tank (3), water circulating pump (4), aquaculture constant temperature machine (5), aerator (6) and connecting line water inlet pipe (42), drainpipe (7), appendix (62) and water inlet pipe check (non-return) valve (41), appendix check (non-return) valve (61); Described monitoring camera (8) is arranged on bottom shelf (11) laminate of breeding box (1) top, and described monitoring camera (8) is connected with the DVR display (81) in Control Room; A kind of indoor circulating water at least setting up a sand filter (91) and the applicant before described biofilter (2) and tank (3) water inlet pipe cultivates the water tank (9) that heavy metal water tank of degrading is introduced, and described sand filter (91) is connected with sea water pump (92) with water tank (9).
Described cultivation step comprises: throw in the preparation before crab, first will clean equipment, then use the ClO 2 solution of 20ppm or the liquor potassic permanganate of 20ppm to equipment disinfection; After 2 ~ 3 hours, with sea water pump (92) from natural waters or underground sea water well extracting seawater to sand filter (91), water tank (9) is entered after filtration, from the seawater that underground sea water well extracts, must adjust the salinity of water, pH value, to reach, to fish for marine site salinity with crab identical, carries out heavy metal degraded water tank (9) is inner to water body, with the ClO 2 solution of 0.5ppm to water body disinfection sterilization; After a time, inject clean sea water toward biofilter (2) and tank (3), open aerator (6), water circulating pump (4), useful vaccine of splashing after 24 hours, support water about two days, cultivated beneficial bacterium.
Crab is collected and accumulating: water Inversion phenomenon and the pH value that first will understand fully received crab marine site, ready for supporting temporarily below; The annual lunar calendar rises the first month of the lunar year, all can some little crab at fishing wharf, does not have meat to be thrown away by fisherman, can pack up successively, take care of the pence, because weather in this time is also cool, directly transport because of little; Along with temperature raises, need during transport to do cooling process, in order to avoid crab fights, need binding crab chela or layering isolation; In autumn, purchase thin crab ghost crab to fishing wharf or culturing pool, need during transport to do cooling process.So-called cooling process, is placed on crab in the refrigerator car of about 12 DEG C exactly, by the straw bag of dipped seawater or cotton or the covering such as filter cloth or sponge, the dry fortune of moisturizing, and is equipped with oxygen cylinder or oxygen bag slow dispenser oxygen in air.
Crab transports cultivation base back, must first exposedly in indoor shelve, carry out temperature adjustment, adjust to differ with water temperature ± 3 DEG C within time, adjust the salinity of water, pH value, with salinity change per hour compared with fishing for marine site with crab within 2 degree, pH value change is within 0.3, be put into again in the ClO 2 solution of 10ppm and soak 5 ~ 10 minutes, could put toward breeding box (1) is inner after disinfection process.
By the input of crab toward breeding box, first every crab is weighed, again crab chela is untied, after be put in the separate room of the trade mark of bidding be made up of dismountable punching division board, a crab is put in a separate room, and separate room size arbitrarily adjusts according to crab size, because the body of the maximum individual swimming crab of biology is wide at 220mm, with punching division board, breeding box (1) is divided into the space of 320mm*320mm, is enough to the growth needs of satisfied large individual crab; With punching division board, breeding box (1) is divided into the space of 210mm*210mm, the growth needs of larger individual crab can be met, comparatively suitable to bringing up fertile crab temporarily; Breeding box (1) is divided into the space of 16mm*16mm with punching division board, the growth of this crab to 3-4 about two is more suitable, can cultivate soft crab again.
Daily management: every day to throw something and feed bait by 10% of crab body weight, and the situation according to eating adjusts flexibly, entirely eats up, and adds next time a little, has residue, and next time just subtracts a little.At dusk 5 ~ 6 o'clock daily ration, feeding quantity account for 70%, 5 ~ 6 o'clock of early morning daily ration, feeding quantity account for 30%; Bait is low value shellfish and small fish shrimp, and bait feeding will be put in the ClO 2 solution of 10ppm to soak and within 5 ~ 10 minutes, do disinfection process, the shell that shellfish will be smashed for first 2 hours, eats remaining residual bait and throw in new again before first sorting out; Find that bait is eaten bad, other bait be changed and decrement.What adopt due to this device is the cultivation of cycle water constant temperature, after finishing bait, just can be sitting in Control Room by display observation crab growing state, and place on record.Want special concern to those continuous crabs do not eaten food for or two days, a quarter of an hour observes one time to two quarters, finds that there is the crab of shell, takes out at once, does low temperature treatment.
That lives soft crab deposits process: immersion 20 ~ 30 minutes in the seawater soft crab alives of taking out being put at once 3 ~ 5 DEG C, from refrigerator-freezer, take out in advance dipped seawater and the storage-transport vessel introduced of the frozen sponge of quarrel and a kind of novel portable live-water products storage-transport vessel of the applicant simultaneously, sponge is laid in container, put soft crab, capping, oxygenation, sealing, put into refrigerator-freezer refrigerate for sale or insert the applicant a kind ofly strengthen thermal-insulating type insulation and wrap the insulation bag introduced and consign.
The way of a quick obtaining soft crab: the crab choosing those two layers to fishing wharf or cultivating pool or fishery market, i.e. public crab legs pinkiness, crab white belly is to crust tip; The crab of two female crabs i.e. triangle navel, navel presents pink or red-black phase secondary color, is put in equipment and supports temporarily, do not need feeding, just can obtain soft crab in the same day or one or two days.
Points for attention:
1. indoor circulating water cultivation is very strong to the dependence of power supply, for preventing power-off, should be equipped with stand-by generator.
2. should be equipped with water quality monitoring equipment and articles for use thereof, cultivate water is accomplished intracardiacly have number, find not to be inconsistent requirement, at once adjustment.
3. to be equipped with fresh-keeping reach in freezer, both can refrigerate in time results product, again can to bait fresh-keeping storage.
4. fatten due to crab and occur that dead crab is unavoidable, cultivate soft crab generation crab shell and be inevitable, therefore will be equipped with drying plant, carry out drying and processing to the Carapax Eriocheir sinensis produced and dead crab, this also can obtain high profit.
5. for purchase arrive with female crab of bright Huang, fertilizer can only be brought up temporarily to it, fertile to sell at once, can't be used for cultivating soft crab.
6. this method both may be used for the temporary raising fertilizer of swimming crab and had cultivated soft crab, also can be used for the temporary raising fertilizer of other crab kinds and cultivated soft crab.
Claims (7)
1. the three-dimensional method of bringing up fertile swimming crab temporarily and cultivating soft crab of indoor circulating water, comprises cultivation equipment and cultivation step; It is characterized in that, described cultivation equipment comprises ecology rearing device and monitoring camera; Described ecology rearing device comprises breeding box, shelf, biofilter, tank, water circulating pump, aquaculture constant temperature machine, aerator and connecting line water inlet pipe, drainpipe, appendix and water inlet pipe check (non-return) valve, appendix check (non-return) valve; Described monitoring camera is arranged on bottom the shelf plywood above breeding box, and described monitoring camera is connected with the DVR display in Control Room; At least set up a sand filter and water tank before described biofilter and tank water inlet pipe, described sand filter is connected with sea water pump with water tank; Described cultivation step: before throwing in crab, first will clean equipment, disinfect; With sea water pump from natural waters or underground sea water well extracting seawater to sand filter and water tank, from the seawater that underground sea water well extracts, must adjust the salinity of water, pH value, to reach, to fish for marine site salinity with crab identical, in water tank, carry out heavy metal degraded and disinfection to water body, after a time, inject clean sea water toward biofilter and tank, open aerator, water circulating pump, useful vaccine of splashing, support water about two days, cultivate beneficial bacterium; Crab first will understand fully water Inversion phenomenon and the pH value in received crab marine site before collecting, ready for supporting temporarily below; The annual lunar calendar rises the first month of the lunar year, all can some little crab at fishing wharf, does not have meat to be thrown away by fisherman, can pack up successively, take care of the pence, because weather in this time is also cool, directly transport because of little; Along with temperature raises, need during transport to do cooling process, in order to avoid crab fights, need binding crab chela or layering isolation; In autumn, purchase thin crab ghost crab to fishing wharf or culturing pool, need during transport to do cooling process; So-called cooling process, is placed on crab in the refrigerator car of about 12 DEG C exactly, covers, the dry fortune of moisturizing, and be equipped with oxygen cylinder or oxygen bag slow dispenser oxygen in air with the straw bag of dipped seawater or cotton or filter cloth or sponge.
2. the three-dimensional method of bringing up fertile swimming crab temporarily and cultivating soft crab of a kind of indoor circulating water according to claim 1, it is characterized in that crab transports cultivation base back, must first exposedly in indoor shelve, carry out temperature adjustment, adjust to differ with water temperature ± 3 DEG C within, the salinity of water is adjusted, salinity change per hour is within 2 degree, to the adjustment of pH value, pH value change per hour is within 0.3, be put into again in thimerosal and soak 5 ~ 10 minutes, could put in breeding box after disinfection process.
3. the three-dimensional method of bringing up fertile swimming crab temporarily and cultivating soft crab of a kind of indoor circulating water according to claim 2, it is characterized in that the input of crab toward breeding box, first every crab is weighed, again crab chela is untied, after be put in the separate room of the trade mark of bidding be made up of dismountable punching division board, a crab is put in a separate room, and separate room size adjusts according to crab size.
4. the three-dimensional method of bringing up fertile swimming crab temporarily and cultivating soft crab of a kind of indoor circulating water according to claim 3, it is characterized in that daily management: every day to throw something and feed bait by 10% of crab body weight, situation according to eating adjusts flexibly, entirely eat up, add next time a little, have residue, next time just subtracts a little, and at dusk 5 ~ 6 o'clock bait throwing in accounts for 70%, 5 ~ 6 o'clock bait throwing in early morning accounts for 30%; Bait is low value shellfish and small fish shrimp, will do disinfection process before bait feeding, the shell that shellfish will be smashed, and eats remaining residual bait and throw in new again before first sorting out; Find that bait is eaten bad, other bait be changed and decrement; What adopt due to this cultivation equipment is the cultivation of cycle water constant temperature, after finishing bait, just can be sitting in Control Room by display observation crab growing state, and place on record; Want special concern to those continuous crabs do not eaten food for or two days, a quarter of an hour observes one time to two quarters, finds that there is the crab of shell, takes out at once, does low temperature treatment.
5. the three-dimensional method of bringing up fertile swimming crab temporarily and cultivating soft crab of a kind of indoor circulating water according to claim 4, what it is characterized in that living soft crab deposits process: immersion 20 ~ 30 minutes in the seawater soft crab alives of taking out being put at once 3 ~ 5 DEG C, from refrigerator-freezer, take out in advance dipped seawater the sponge of quarrel of having frozen and storage-transport vessel simultaneously, sponge is laid in container, put soft crab, capping, oxygenation, sealing, puts into refrigerator-freezer and refrigerates for sale or insert the delivery of insulation bag.
6. the three-dimensional method of bringing up fertile swimming crab temporarily and cultivating soft crab of a kind of indoor circulating water according to claim 5, it is characterized in that the way of a quick obtaining soft crab: the crab choosing those two layers to fishing wharf or cultivating pool or fishery market, i.e. public crab legs pinkiness, crab white belly is to crust tip; The crab of two female crabs i.e. triangle navel, navel presents pink or red-black phase secondary color, is put in equipment and supports temporarily, do not need feeding, just can obtain soft crab in the same day or one or two days.
7. the three-dimensional method of bringing up fertile swimming crab temporarily and cultivating soft crab of a kind of indoor circulating water according to claim 6, is characterized in that points for attention: 1. indoor circulating water cultivation is very strong to the dependence of power supply, for preventing power-off, should be equipped with stand-by generator; 2. should be equipped with water quality monitoring equipment and articles for use thereof, cultivate water is accomplished intracardiacly have number, find not to be inconsistent requirement, at once adjustment; 3. to be equipped with fresh-keeping reach in freezer, both can refrigerate in time results product, again can to bait fresh-keeping storage; 4. fatten due to crab and occur that dead crab is unavoidable, cultivate soft crab generation crab shell and be inevitable, therefore will be equipped with drying plant, carry out drying and processing to the Carapax Eriocheir sinensis produced and dead crab, this also can obtain high profit; 5. for purchase arrive with female crab of bright Huang, fertilizer can only be brought up temporarily to it, fertile to sell at once, can't be used for cultivating soft crab; 6. this method both may be used for the temporary raising fertilizer of swimming crab and had cultivated soft crab, also can be used for the temporary raising fertilizer of other crab kinds and cultivated soft crab.
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