CN103181345B - Liquid-oxygen oxygen-increasing high-density sturgeon culturing method - Google Patents
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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
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Abstract
The invention belongs to the technical field of breeding of aquatic products, particularly relates to a liquid-oxygen oxygen-increasing high-density sturgeon culturing method, and aims to overcome the defects of difficulty in control on water temperature and water quality of a culture pond, low oxygen increasing efficiency of the culture pond and difficulty in realizing high-density culture of sturgeons of a sturgeon culturing method in the prior art. The method adopts a land culture pond; the culture pond comprises a culture zone and a temperature regulating zone; the temperature regulating zone is isolated form the culture zone by a fence; a coil is arranged in the temperature regulating zone; and cold or hot circulating water is filled into the coil to control water temperature of the culture pond. The culture pond selects water on the bottom layer of a drinking water source, wherein salinity of a water body is not more than 0.05%, N-NH3 is less than 0.5 mg/L, N-NO2 is less than 0.5 mg/L, TP is less than 50 mg/L, and pH is in the range of 6.0 to 6.8; burnt lime is adopted to disinfect the water body in the culture pond; dissolved oxygen in the water body reaches 5 mg/L in a liquid-oxygen oxygen increasing manner; the sturgeons are added to be cultured; in the culturing process, the dissolved oxygen in the water body is controlled in the range of 7 to 8 mg/L; in 0.5 hour before and after baits are supplied, the dissolved oxygen in the water body is controlled in the range of 9 to 10 mg/L; and in the sturgeon culturing process, the water body in the culture pond is replaced with a fresh water source.
Description
Technical field
The invention belongs to aquaculture technical field, especially relate to a kind of liquid oxygen oxygenation high density Amur sturgeon adult fish culture method.
Background technology
Under traditional aquaculture pattern, because the impact being subject to environmental factor is comparatively large, the water temperature of cultivation and water quality are all difficult to ensure.In water temperature; the temperature difference of most area whole year is all more than 30 DEG C; and the suitable growth temperature difference of sturgeon is generally the scope at 15 DEG C, therefore fish can select the water layer that temperature is suitable for relatively on whole water body facade movable usually, greatly reduce cultivation density.In water quality, fish excrement is decomposed by the microorganism in pool, resolving time is longer, in water, carbon dioxide, ammonia nitrogen and nitrite etc. increase along with the increase of cultivation quantity the content of fish body harmful substance, when these material concentrations acquire a certain degree, will work the mischief to the health of fish; Meanwhile, in traditional cultural method, oxygen replenishment is mainly supplemented or power oxygenation by natural air, and oxygenating efficiency is low, can not meet high-density breeding.The cultivation density of tradition cultivation is generally 20kg/m3, and therefore urgently exploitation is applicable to the method for high density sturgeon cultivation.
China Patent Publication No. CN101703010A, publication date on May 12nd, 2010, disclose a kind of small-waterplane high-density semi-flowing cultivating technology of paddlefish, throw in paddlefish fry 5 ~ 6 tail for every cubic metre, collocation silver carp seedling 60 tail, carp fry 100 tail, early stage throws in sweet wormwood grass in pond, in culture pond, planktonic organism is as the main feed of fry, and the later stage, using the main feed of expanded pellet diet as paddlefish of throwing something and feeding, changes Chi Shui during cultivation on time.Cultivation paddlefish has been broken away from this invention needs the overcritical of large water surface fishpond, still can large-scale farming in the area lacking large water surface fishpond.Weak point is: the water temperature not solving culturing pool controls and Water-quality control, and the water body dissolved oxygen of culturing pool is not enough, is not suitable for the high-density breeding of sturgeon.
Summary of the invention
The object of the invention is to solve the deficiency that the sturgeon cultivation method culturing pool temperature of prior art and water quality are difficult to control, culturing pool oxygenation efficiency is low, be difficult to realize sturgeon high-density breeding, provide a kind of culturing pool temperature and Water-quality control is reliable, culturing pool oxygenation efficiency is high high density Amur sturgeon adult fish culture method.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of liquid oxygen oxygenation high density Amur sturgeon adult fish culture method, adopts land culturing pool, carries out flowing water culture, cultivation density>=35kg/m by the water temperature and water quality controlling culturing pool
3, the water temperature control measure of culturing pool are: culturing pool comprises culture zone and temperature adjustment district, and temperature adjustment district and culture zone are isolated by fence, and temperature adjustment arranges coil pipe in district, pass into the cold or water temperature of heat recirculated water to culturing pool and control in coil pipe; The Water-quality control of culturing pool is: the bottom water choosing drinking water source, water salinity≤0.5 ‰, N-NH
3< 0.5mg/L, N-NO
2< 0.5mg/L, TP < 50mg/L, pH6.0 ~ 6.8, add in culturing pool, adopt quick lime to carry out disinfection to the water body in culturing pool, the consumption of quick lime is 0.12 ~ 0.15kg/m3, water body dissolved oxygen is made to reach 5 mg/L by liquid oxygen aeration system, then drop into sturgeon to cultivate, in breeding process, water body dissolved oxygen controls at 7 ~ 8mg/L, and before and after bait supply, 0.5 hour water body dissolved oxygen controls at 9 ~ 10mg/L; In sturgeon cultivation process, the water body of culturing pool adopts fresh water source to replace.The water temperature of culturing pool is undertaken integrally-regulated by temperature adjustment district, reliably can control the water temperature difference of culturing pool at 5 ~ 6 DEG C, the growth of suitable sturgeon, the water temperature of whole culturing pool is balanced, each layer waters is all applicable to sturgeon existence, sturgeon freedom of movement, and the Water space utilization rate of culturing pool is high; The water body of culturing pool selects the bottom water of drinking water source, Water quality is good, highly shortened the adaptation time of sturgeon, the survival rate of sturgeon is high, adopt the fresh water of salinity≤0.5 ‰ as breeding water body, avoid the rejection of sturgeon to salinity, sturgeon metabolism is vigorous, bait utilization is high, and growth is fast; Culturing pool water body carries out disinfection, and the pathogenic bacteria in anti-water-stop body bring harm to cause the underproduction to sturgeon; Breeding water body dissolved oxygen before input sturgeon reaches 5mg/L, and when can prevent from just having dropped into sturgeon, sturgeon assembles and ischaemia because of the uncomfortable instinct of environment; Control dissolved oxygen 7 ~ 8mg/L in breeding process, sturgeon metabolism is vigorous, and immunity is good, not easily sick; Half an hour before and after bait throwing in material, dissolved oxygen controls at 9 ~ 10mg/L, sturgeon grazing rate is high, and the utilization rate of bait is high, and bait surplus is low, the organic matter avoiding residual bait is reduced, produce noxious material, harm sturgeon is healthy, and in breeding process, water body is changed continuously, reduce the accumulation of sturgeon metabolic waste in high-density breeding sturgeon process, ensure that in culturing pool, Water quality is reliable.
As preferably, liquid oxygen aeration system is closed pillar gas-liquid contact system, the filler that its main body is cylinder and is seated in cylinder, and the source of the gas of employing is pure oxygen, and the way of contact in cylinder of culturing pool water body and pure oxygen is counter current contacting.Oxygenation in the pillar gas-liquid contact system closed, can promote oxygenation effect by the operating pressure improving cylinder; The pure oxygen that the filling adsorption of filling in cylinder is a large amount of, long for time of contact with water body, oxygenation effect is good; Adopt pure oxygen as source of the gas, when gas-liquid exchanges, oxygen concentration difference is large, and oxygen diffusion effect in water body is good, strengthens effective; This liquid oxygen aeration system oxygenation efficiency is high, and power consumption cost is low, reduces CO in the process of oxygenation simultaneously
2deng the content of pernicious gas, good reliability.
As preferably, temperature adjustment district is arranged on the middle part of culturing pool, and the volume in temperature adjustment district accounts for 2 ~ 3% of whole culturing pool volume, and the heat exchange area of the coil pipe arranged in temperature adjustment district is 4 ~ 6 ㎡.Arrange temperature adjustment district, thermoregulation effect is good, and temperature adjustment efficiency is high, and can regulate and control the water temperature of the water body in whole culturing pool, in culturing pool, zones of different has a narrow range of temperature.
As preferably, the water temperature of culturing pool controls at 18 ~ 24 DEG C.Temperature controlled in the optimum growth temperature of sturgeon, sturgeon metabolism is vigorous, and immunity is good, not easily sick, and sturgeon growth rapidly.
As preferably, by integrated pH, temperature and the dissolved oxygen probe water body on-line real time monitoring to culturing pool in breeding process, the regulation and control of water temperature and water quality are operated by the data of PLC control system according to Real-Time Monitoring.Carry out intelligent real-time monitoring to the pH of culturing pool water body, temperature and dissolved oxygen and adjust in real time, simple to operate, can get information about very much the water body index of culturing pool, production efficiency is high.
As preferably, the water body 20 ~ 24h of single culturing pool completes Integratively displacement.The water body of culturing pool is changed in time, and culturing pool weight is stablized, and avoids the accumulation of sturgeon growth course metabolin and has an impact to sturgeon, improve the survival rate of sturgeon.
The invention has the beneficial effects as follows:
(1) the present invention is by controlling water temperature in culturing pool, and sturgeon is grown in optimum humidity province, temperature equalization in culturing pool, water body utilization rate is high;
(2) control the water quality of culturing pool, the water quality that sturgeon is grown is good, and sturgeon metabolism is vigorous, and immunity is good, and not easily sick, bait utilization is high;
(3) make the water body dissolved oxygen content of culturing pool high by liquid oxygen oxygenation, sturgeon grazing rate is high, reduces the residual quantity of bait, and the organic matter corruption avoiding bait remnants produces the growth of poisonous and harmful substance harm sturgeon, liquid oxygen oxygenation oxygenation efficiency is high, and oxygenation effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of culturing pool of the present invention.
In figure: 1, pure oxygen storage tank, 2, valve, 3, PLC control system, 4, pH, temperature and dissolved oxygen probe, 5, pillar gas-liquid contact system, 6, culturing pool, 7 fence, 8, coil pipe, 9, pump, 10, hot water storage tank, 11, cold water storage tank.
Detailed description of the invention
Below by specific embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Liquid oxygen oxygen increasing equipment (i.e. pillar gas-liquid contact system): Point Four Water Quality Technologies (Suzhou) Co., Ltd.;
PLC control system: Point Four Water Quality Technologies (Suzhou) Co., Ltd..
Embodiment one:
A kind of liquid oxygen oxygenation high density Amur sturgeon adult fish culture method, adopt circular land culturing pool 6, the diameter of culturing pool 6 is 16m, the degree of depth of culturing pool 6 is 1.6m, as shown in Figure 1, culturing pool 6 comprises culture zone and temperature adjustment district, temperature adjustment district and culture zone are isolated by fence 7, the volume in temperature adjustment district accounts for 2% of whole culturing pool volume, coil pipe 8 is set in temperature adjustment district, the heat exchange area of coil pipe 8 is 4 ㎡, the arrival end of coil pipe 8 hot water storage tank 10(hot water water temperature 35 ~ 40 DEG C of ining succession) and cold water storage tank 11(cold water water temperature≤15 DEG C), the port of export of coil pipe 8 is connected with the top of hot water storage tank 10 and cold water storage tank 11 respectively, choose the bottom water of drinking water source, water salinity≤0.5 ‰, N-NH
3< 0.5mg/L, N-NO
2< 0.5mg/L, TP < 50mg/L, pH6.0, add in culturing pool 6, depth of water 1.3m in culturing pool 6, the quick lime of 0.12kg/m3 is adopted to carry out disinfection to the water body in culturing pool 6, then the coil pipe 8 in temperature adjustment district is interior cold by passing into, the water temperature of heat recirculated water to culturing pool 6 regulates, the water temperature of culturing pool 6 controls at 18 ~ 24 DEG C, then the exchange of the water body of pure oxygen and culturing pool 6 is completed by pillar gas-liquid contact system 5, realize oxygenation, water body dissolved oxygen is made to reach 5mg/L, drop into Amur sturgeon to cultivate, by integrated pH in breeding process, water body in temperature and dissolved oxygen probe 4 pairs of culturing pools 6 carries out real time on-line monitoring, PLC control system 3 carries out real-time monitoring according to the data of Real-Time Monitoring to the water temperature of culturing pool 6 water body and water quality, in breeding process, culturing pool 6 water body dissolved oxygen controls at 7 ~ 7.5mg/L, before and after bait supply, 0.5 hour water body dissolved oxygen controls at 9 ~ 9.5mg/L, when water temperature over-high, open cold water storage tank 11, pump into cold water by pump 9 to lower the temperature to culturing pool 6 water body, when water temperature over-high, open hot water storage tank 10, pump into hot water by pump 9 to heat up to culturing pool 6 water body, in Amur Sturgeon fish culture process, the water body of culturing pool 6 adopts fresh water source to replace, the water body 20h of culturing pool 6 completes Integratively displacement.
Embodiment two
A kind of liquid oxygen oxygenation high density Amur sturgeon adult fish culture method, adopt circular land culturing pool 6, the diameter of culturing pool 6 is 20m, the degree of depth of culturing pool 6 is 1.6m, as shown in Figure 1, culturing pool 6 comprises culture zone and temperature adjustment district, temperature adjustment district and culture zone are isolated by fence 7, the volume in temperature adjustment district accounts for 3% of whole culturing pool volume, coil pipe 8 is set in temperature adjustment district, the heat exchange area of coil pipe 8 is 6 ㎡, the arrival end of coil pipe 8 hot water storage tank 10(water temperature 35 ~ 40 DEG C of ining succession), with cold water storage tank 11(water temperature≤15 DEG C), the port of export of coil pipe 8 is connected with the top of hot water storage tank 10 and cold water storage tank 11 respectively, choose the bottom water of drinking water source, water salinity≤0.5 ‰, N-NH
3< 0.5mg/L, N-NO
2< 0.5mg/L, TP < 50mg/L, pH6.8, add in culturing pool 6, depth of water 1.3m in culturing pool 6, the quick lime of 0.15kg/m3 is adopted to carry out disinfection to the water body in culturing pool 6, then the coil pipe 8 in temperature adjustment district is interior cold by passing into, the water temperature of heat recirculated water to culturing pool 6 regulates, the water temperature of culturing pool 6 controls at 18 ~ 24 DEG C, then the exchange of the water body of pure oxygen and culturing pool 6 is completed by pillar gas-liquid contact system 5, realize oxygenation, water body dissolved oxygen is made to reach 5mg/L, drop into Amur sturgeon to cultivate, by integrated pH in breeding process, water body in temperature and dissolved oxygen probe 4 pairs of culturing pools 6 carries out real time on-line monitoring, according to the data of Real-Time Monitoring, real-time monitoring is carried out to the water temperature of culturing pool 6 water body and water quality by PLC control system 3, in breeding process, culturing pool 6 water body dissolved oxygen controls at 7.5 ~ 8mg/L, before and after bait supply, 0.5 hour water body dissolved oxygen controls at 9.5 ~ 10mg/L, when water temperature over-high, open cold water storage tank 11, pump into cold water by pump 9 to lower the temperature to culturing pool 6 water body, when water temperature over-high, open hot water storage tank 10, pump into hot water by pump 9 to heat up to culturing pool 6 water body, in Amur Sturgeon fish culture process, the water body of culturing pool 6 adopts fresh water source to replace, the water body 24h of culturing pool 6 completes Integratively displacement.
Under aquaculture model of the present invention, Amur Sturgeon sashimi (raw fish) is long all right, the ratio that in culturing pool, Amur sturgeon bosom ovum parent population number accounts for experiment fish sum brings up to 67.64% from 60.23% of prior art, and the ratio that the bosom black egg parent population number of Amur sturgeon accounts for experiment fish sum comparatively prior art improves 5.15%.
Under the aquaculture model of prior art, the bosom ovum rate of Amur sturgeon is about 10%, and under aquaculture model of the present invention, the bosom ovum rate of Amur sturgeon is 11 ~ 15%, and bosom ovum rate significantly improves.
Compared with the aquaculture model of prior art, under aquaculture model of the present invention, the cultivation density of culturing pool reaches 36kg/m3, and cultivation density improves 75%, and carrying capacity improves 76%.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (3)
1. a liquid oxygen oxygenation high density Amur sturgeon adult fish culture method, it is characterized in that, adopt land culturing pool, flowing water culture is carried out by the water temperature and water quality that control culturing pool, cultivation density 36kg/m3, the water temperature control measure of culturing pool are: culturing pool comprises culture zone and temperature adjustment district, and temperature adjustment district and culture zone are isolated by fence, temperature adjustment arranges coil pipe in district, passes into the cold or water temperature of heat recirculated water to culturing pool and control in coil pipe; The Water-quality control measure of culturing pool is: the bottom water choosing drinking water source, water salinity≤0.5 ‰, N-NH
3< 0.5mg/L, N-NO
2< 0.5mg/L, TP < 50mg/L, pH6.0 ~ 6.8, add in culturing pool, adopt quick lime to carry out disinfection to the water body in culturing pool, the consumption of quick lime is 0.12 ~ 0.15kg/m3, water body dissolved oxygen is made to reach 5mg/L by liquid oxygen aeration system, then drop into sturgeon to cultivate, in breeding process, water body dissolved oxygen controls at 7 ~ 8mg/L, and before and after bait supply, 0.5 hour water body dissolved oxygen controls at 9 ~ 10mg/L; In sturgeon cultivation process, the water body of culturing pool adopts fresh water source to replace; Liquid oxygen aeration system is closed pillar gas-liquid contact system, the filler that its main body is cylinder and is seated in cylinder, and the source of the gas of employing is pure oxygen, and the way of contact in cylinder of culturing pool water body and pure oxygen is counter current contacting; By integrated pH, temperature and the dissolved oxygen probe water body on-line real time monitoring to culturing pool in breeding process, water temperature and water quality are by the data auto-control of PLC control system according to Real-Time Monitoring, temperature adjustment district is arranged on the middle part of culturing pool, the volume in temperature adjustment district accounts for 2 ~ 3% of whole culturing pool volume, and the heat exchange area of the coil pipe arranged in temperature adjustment district is 4 ~ 6 ㎡.
2. a kind of liquid oxygen oxygenation high density Amur sturgeon adult fish culture method according to claim 1, it is characterized in that, the water temperature of culturing pool controls at 18 ~ 24 DEG C.
3. a kind of liquid oxygen oxygenation high density Amur sturgeon adult fish culture method according to claim 1 and 2, is characterized in that, the water body 20 ~ 24h of single culturing pool completes Integratively displacement.
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| CN104067971B (en) * | 2014-07-16 | 2015-10-28 | 大连海洋大学 | Multi-parameter multi-functional aquatic animal metaboilic level analyzer and assay method |
| CN104585081B (en) * | 2014-12-12 | 2017-01-25 | 杭州千岛湖鲟龙科技股份有限公司 | Underground water circulation water-saving type sturgeon ecological breeding method |
| CN105165678B (en) * | 2015-08-26 | 2016-08-24 | 北京中科天利水产科技有限公司 | A kind of method of sturgeon breeding |
| CN109452202B (en) * | 2018-11-19 | 2021-01-15 | 杭州千岛湖鲟龙科技股份有限公司 | Cold water purification cultivation method for female fish as raw material for processing sturgeon caviar |
| CN113693012B (en) * | 2021-08-09 | 2022-12-02 | 衢州鲟龙水产食品科技开发有限公司 | Intelligent sturgeon factory circulating water culture system |
| CN115380862A (en) * | 2022-05-02 | 2022-11-25 | 珠海金利华海洋生物资源研究开发有限公司 | Eel breeding wisdom monitoring control device |
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