CN204762866U - Self -purification formula circulating water culture of chinese mitten crab system - Google Patents

Self -purification formula circulating water culture of chinese mitten crab system Download PDF

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Publication number
CN204762866U
CN204762866U CN201520510607.4U CN201520510607U CN204762866U CN 204762866 U CN204762866 U CN 204762866U CN 201520510607 U CN201520510607 U CN 201520510607U CN 204762866 U CN204762866 U CN 204762866U
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China
Prior art keywords
pond
water
pasture
eel grass
crab
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Expired - Fee Related
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CN201520510607.4U
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Chinese (zh)
Inventor
陆全平
李佳佳
马小荣
严维辉
刘国兴
彭刚
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Freshwater Fisheries Research Institute of Jiangsu Province
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Freshwater Fisheries Research Institute of Jiangsu Province
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Abstract

The utility model provides a first pond (1), second pond (2), third pond (3) and fourth pond (4) are constituteed that self -purification formula circulating water culture of chinese mitten crab system, characterized by it by four mutual intercommunications and can realize one -tenth " field " font overall arrangement that the water flows the pond in put river crab, freshwater shrimp, mandarin fish, silver carp, flathead and husky sleeper in a suitable place to breed, wherein fourth pond (4) are equipped with outer water supply water inlet (5), it has hornwort and eel grass to plant in the first pond, plants the black algae of rotor blade all around, alternate planting has eel grass and yi lezao in the middle of second pond (2) and third pond (3), it has eel grass and yilezao to plant in fourth pond (4), pasture and water coverage rate nearly about 60%. The utility model discloses simple structure realizes easily that economy and environment efficiency are showing.

Description

Auto purification type cycle water culture of Chinese mitten crab system
Technical field
The utility model relates to a kind of aquaculture technology, especially a kind of culture of Chinese mitten crab technology, specifically a kind of auto purification type cycle water culture of Chinese mitten crab system.
Background technology
At present, propagating artificially of river crab is that a kind of important of peasant brother increases income means.In the south of the lower reaches of the Yangtze River by wide popularization and application, business efficiency is obvious.But current main breeding way is based on the pond culture of small size monomer or encloses lake cultivation.Because culture of Chinese mitten crab is higher to water quality requirement, therefore, raiser needs regularly limit to change water, in case water-stop body is oxygen enrichment.This mode not only causes aquaculture cost high, and waste water resource easily causes the secondary pollution of water body, and is unfavorable for growing up healthy and sound and the lifting of output of river crab.Therefore, design a kind of wetland principle that utilizes and realize the key that water body cultivating system that is self-cleaning and that comprehensively put in a suitable place to breed is solution using water wisely, cultivation tail water recycles.
Utility model content
The purpose of this utility model is for existing river crab cultivation pond function singleness, and can not realize water body self-cleaning and cause water consumption large, tail water can cause the problem of environmental pollution, designs a kind of auto purification type cycle water culture of Chinese mitten crab system based on wetland principle.
The technical solution of the utility model is:
A kind of auto purification type cycle water culture of Chinese mitten crab system, it is characterized in that it is interconnected by four and can realizes the first pond 1 of the one-tenth sphere of movements for the elephants shape layout of water body flow, second pond 2, 3rd pond 3 and the 4th pond 4 form, drainpipe is passed through between adjacent pond, open channel or closed conduit are communicated with to realize water body self-loopa, river crab has been put in a suitable place to breed in described pond, freshwater shrimp, mandarin fish, silver carp, flathead and Odontobutis obscura, wherein the 4th pond 4 is provided with outer water supply water inlet 5, plant in first pond and be implanted with hornwort and eel grass, surrounding plantation hydrilla verticillata, plant between the second pond 2 and the 3rd pond 3 mesophase spherule and be implanted with eel grass and waterweed, plant in 4th pond 4 and be implanted with eel grass and waterweed, pasture and water coverage rate reaches about 60%.
In the first described pond, pasture and water coverage rate is 35-45%.
Pasture and water coverage rate in the second described pond 2 and the 3rd pond 3 is 75-85%.
Pasture and water coverage rate in the 4th described pond 4 is 55-65%.
The beneficial effects of the utility model:
The circulation that the utility model achieves aquaculture water is self-cleaning, can greatly save breeding water amount, can not cause secondary pollution, and business efficiency significantly improve to environment.
The economic fish that the utility model passes through planted pasture and water and Collocation cultivation significantly improves water quality, and the various main water quality index such as ammonia nitrogen is starkly lower than the content in single pond.
Experiment proves, cultivation discharge water total nitrogen content of the present utility model is all less than 5.0(secondary discharge standard), 3rd and the 3rd pond is less than 3.0(first discharge standard) total phosphorus content four mouthfuls of ponds then all lower than 3.0 (first discharge standards), substantially achieve cultivation tail water zero-emission.Based on culture of Chinese mitten crab in test, freshwater shrimp, silver carp, flathead, mandarin fish and Odontobutis obscura are secondary, put a large amount of spiral shell in a suitable place to breed simultaneously.According to BIOLOGICAL CONTROL (bio-manipulation) principle, shellfish and filter-feeding fish can by the phytoplankton in filter drinking water body and organic debrises, thus indirectly to reduce in water body the nutrient concentrations such as N, P, and finally make water quality be purified.The water body constantly updated around shellfish will produce positive role to clean-up effect.The utility model is fetched water by the manual pumps in the 4th pond, and the aquaculture water in four pool mouths is constantly circulated.So the spiral shell adopted in circulating water cultivation pattern, Mixed cultivation of prawn and crab purify water and have larger superiority than the spiral shell in simple impounded body, Mixed cultivation of prawn and crab.The pasture and water such as waterweed, eel grass, hydrilla verticillata, hornwort that the utility model is planted in pond, because pasture and water growth needs absorbs the nutriment in water, by the continuous flowing of cycle water, the various nutritive elements in water, by the variety classes pasture and water of different pools mouth, absorb.Thus reach the object purified water.Experiment shows that waterweed, eel grass, hydrilla verticillata can reach 65.38%, 69.23%, 65.00% respectively to the maximum material removal rate of ammonia nitrogen, nitrite, total nitrogen, total phosphorus; 96.89%, 88.46%, 71.25%; 63.57%, 44.39%, 72.86%; 89.91%, 6.23%, the different water plants of 13.19%(is on the impact of water ecological setting).Enter summer, the total nitrogen in water body, total phosphorus obviously decline, because be the vigorous period of pasture and water growth, absorb more to Water, phosphorus in summer.
The utility model adopts enclosed circulation water flow, aquaculture water only import but no export and in culturing pool the water yield progressively increase.Quantity of exchanged water is that every day throws certain water yield from No. 4 pool mouths into No. 1 pool mouth by the manual pumps being positioned at No. four pool mouths and being of a size of 6 cun.Determine that the key of quantity of exchanged water is then river crab pond water grass seeds class and coverage rate.In pasture and water cultivation in earlier stage, pasture and water need photosynthesis to grow, if water is crossed deeply in pond, can affect the normal photosynthesis of pasture and water, and controlling water level of therefore should trying one's best in 3-April of early stage, rests in the 50-60 centimetre depth of water, control pasture and water and grow fast.Pasture and water (such as waterweed) are fixed on depths, 20 ~ 30 centimeters, underwater, are beneficial to water body flow before arriving by high temperature season, and increase dissolved oxygen in water, such pasture and water both imputrescibilities, can purify water again, also can reduce water temperature simultaneously.After entering summer, pasture and water coverage rate reaches more than 50%, and therefore quantity of exchanged water can be fixed on and be fetched water 8 hours by 6 cun of manual pumps every day, and the time of fetching water is for 10:00 is every night to early 6:00 next day.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1.
A kind of auto purification type cycle water culture of Chinese mitten crab system, it (specifically be can refer to Fig. 1 to do to adapt to send out distortion by four one-tenth sphere of movements for the elephants shape layouts that also can realize water body flow that are interconnected, make the area in the first pond be greater than the area in the 4th pond) the first pond 1, second pond 2, 3rd pond 3 and the 4th pond 4 form, as shown in Figure 1, drainpipe is passed through between adjacent pond, open channel or closed conduit 6 are communicated with to realize water body self-loopa, river crab has been put in a suitable place to breed in described each pond, freshwater shrimp, mandarin fish, silver carp, flathead and Odontobutis obscura, wherein the 4th pond 4 is provided with outer water supply water inlet 5, plant in first pond and be implanted with hornwort and eel grass, surrounding plantation hydrilla verticillata, plant between the second pond 2 and the 3rd pond 3 mesophase spherule and be implanted with eel grass and waterweed, plant in 4th pond 4 and be implanted with eel grass and waterweed, pasture and water coverage rate reaches about 60%.
During concrete enforcement, four ponds are East and West direction, rectangle, and every mouthful of pond area is 10 mu, totally 40 mu.The ridge, pond face width 2 meters, slope is than about 1:2.5.Face, field keeps the depth of water 1.2 meters, circular groove, the crab ditch depth of water 1.5 meters.Furrow width 2 ~ 3 meters.It prevents that escaping Facilities Construction mainly adopts polyethylene mesh sheet and timber to build up purse seine facility, and mesh sheet is high 1.5 meters, and bottom stone is fixedly buried in the earth 20 centimetres of compactings, 1 ~ 1.5 meter, interval is fixed with timber, play wind wave resistance effect, purse seine facility adopts circular arc around the corner, prevents from forming dead angle.30 cm width calcium-plastic boards are sewed on top.
Plantation pasture and water can make full use of water body, and the solid distribution of favourable river crab, freshwater shrimp, provide bait and sequestration, pasture and water kind is based on hydrilla verticillata, waterweed, eel grass.It is as follows that various pasture and water situation is planted in four ponds: plantation hornwort and eel grass in the middle of the first pond, surrounding plantation hydrilla verticillata, pasture and water coverage rate reaches about 40%, eel grass and waterweed is planted between the second pond mouth and the 3rd pond mesophase spherule, pasture and water coverage rate reaches about 80%, 4th pond mouth plantation eel grass and waterweed, pasture and water coverage rate reaches about 60%.Kind of careless method: hydrilla verticillata, waterweed, based on vegetative propagation, take to cut the method that stem divides segment cuttage, 25 ~ 30kg/667m 2, eel grass based on seed, 1kg/667m 2.
It is all that physique is healthy and strong that button crab is put in institute, and appendage is complete, anosis without wound, the Eriocheir sinensis in ChangJiang River that specification is basically identical.Specification is at 140/about kg, and every mu of pool mouth puts 500 in a suitable place to breed.Freshwater shrimp specification is 1600 tails/kg, puts 3kg in a suitable place to breed for every mu.Other aquatic animal is also thrown on the crab pool, and its input kind and injected volume concrete condition are as following table 1.
Table 1 is tested pond seed and is put situation in a suitable place to breed
Regulating and controlling water quality, early stage, the depth of water generally kept 0.6 ~ 0.8 meter, and high temperature season is adjusted to 1 ~ 1.2 meter.Water quality adjustment stresses four aspects: one is that duty beats new water, within general 10 ~ 15 days, makes a call to a water, guarantees stable level.Along with the rising of water temperature, progressively add high water level.High temperature season adds water once every day.Two is the pH regulating water body, and pH value is 7.5 ~ 8.5, mainly alternately regulates with quicklime or chlorinated product, 7 ~ 10 days full pool spilling heads 1 time, quicklime every mu every meter depth of water consumption 5 ~ 10 kilograms, chlorinated product is determined according to concrete kind, normally every mu every meter depth of water consumption 100 ~ 200 grams.Three is high temperature season emphasis biologic product regulating water quality and substrate, principal item has that biological water purification is precious, substrate clear and EM bacterium etc., to reduce in water body the harmful substance contents such as ammonia nitrogen, nitrite, hydrogen sulphide, increase the dissolved oxygen amount of water body, keep fresh and alive, the tender refreshing state of water quality, promote river crab healthy growth.Four is when water level is more than more than 1 meter, starts to beat cycle water.
Breeding water body, as a relatively independent semi-enclosed water body, has certain self-detergent power.The essence of Water-quality control is effective utilization, controls breeding water body, makes it keep self-detergent power, under minimum artificial condition is intervened, can keep good water quality condition, to obtain maximum economic benefit.The vital link controlling water body is exactly artificial changing water.Fig. 1 has indicated the flow direction of cycle water, and water source import.In order to ensure in breeding process, in order, and cycle water can proper flow for water body, and we need manually to fetch water, people's chemical water pump (6 cun of pumps) at No. four pool mouths, its play be every night 10:00 to early 6:00 next day.
Under pond polyculture pattern, economic animal mainly crab, shrimp, mandarin fish, silver carp, flathead and the Odontobutis obscura etc. of results.Its output and output value situation are in table 2.
Table 2 output condition
Wherein become crab specification to be that public crab average body reaches 6.98cm, body is wide reaches 7.17cm, body 187.67g; Female crab average body reaches 6.75cm, and body is wide reaches 7.03cm, and body weight reaches 147.33g.Crop: becoming crab always to produce is 2324.275 kilograms, the crab that wherein goes on the market is 2299.275 kilograms, average yield per mu 58.12 kilograms.
The utility model does not relate to the part prior art that maybe can adopt all same as the prior art and is realized.

Claims (4)

1. an auto purification type cycle water culture of Chinese mitten crab system, it is characterized in that it is interconnected by four and can realizes first pond (1) of the one-tenth sphere of movements for the elephants shape layout of water body flow, second pond (2), 3rd pond (3) and the 4th pond (4) composition, drainpipe is passed through between adjacent pond, open channel or closed conduit are communicated with to realize water body self-loopa, river crab has been put in a suitable place to breed in described pond, freshwater shrimp, mandarin fish, silver carp, flathead and Odontobutis obscura, wherein the 4th pond (4) is provided with outer water supply water inlet (5), plant in first pond and be implanted with hornwort and eel grass, surrounding plantation hydrilla verticillata, plant between the second pond (2) and the 3rd pond (3) mesophase spherule and be implanted with eel grass and waterweed, plant in 4th pond (4) and be implanted with eel grass and waterweed, pasture and water coverage rate reaches about 60%.
2. system according to claim 1, is characterized in that in the first described pond, pasture and water coverage rate is 35-45%.
3. system according to claim 1, is characterized in that the pasture and water coverage rate in described the second pond (2) and the 3rd pond (3) is 75-85%.
4. system according to claim 1, is characterized in that the pasture and water coverage rate in the 4th described pond (4) is 55-65%.
CN201520510607.4U 2015-07-15 2015-07-15 Self -purification formula circulating water culture of chinese mitten crab system Expired - Fee Related CN204762866U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105519462A (en) * 2015-12-16 2016-04-27 苏州蟹家族生态农业有限公司 Integrated breeding method for ornamental crab and ornamental fish
CN105532554A (en) * 2015-12-16 2016-05-04 苏州蟹家族生态农业有限公司 Ornamental crab culture system
CN110235845A (en) * 2019-07-03 2019-09-17 天津现代晨辉科技集团有限公司 Suitable for goldfish, the method for construction in the water cyclic culture pond of fancy carp parent fish rearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105519462A (en) * 2015-12-16 2016-04-27 苏州蟹家族生态农业有限公司 Integrated breeding method for ornamental crab and ornamental fish
CN105532554A (en) * 2015-12-16 2016-05-04 苏州蟹家族生态农业有限公司 Ornamental crab culture system
CN110235845A (en) * 2019-07-03 2019-09-17 天津现代晨辉科技集团有限公司 Suitable for goldfish, the method for construction in the water cyclic culture pond of fancy carp parent fish rearing

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151118

Termination date: 20160715