CN108901991A - A kind of fish culture in running water system and method - Google Patents
A kind of fish culture in running water system and method Download PDFInfo
- Publication number
- CN108901991A CN108901991A CN201810843013.3A CN201810843013A CN108901991A CN 108901991 A CN108901991 A CN 108901991A CN 201810843013 A CN201810843013 A CN 201810843013A CN 108901991 A CN108901991 A CN 108901991A
- Authority
- CN
- China
- Prior art keywords
- fish pond
- fish
- water
- sensor
- pond
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 138
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 15
- 235000013305 food Nutrition 0.000 claims abstract description 29
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 28
- 239000001301 oxygen Substances 0.000 claims abstract description 28
- 230000037452 priming Effects 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 238000011897 real-time detection Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 244000058871 Echinochloa crus-galli Species 0.000 claims 1
- 241000196324 Embryophyta Species 0.000 description 5
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003903 river water pollution Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
- A01K63/006—Accessories for aquaria or terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/80—Feeding devices
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/045—Filters for aquaria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/047—Liquid pumps for aquaria
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a kind of fish culture in running water system and methods, including control centre, water pump, priming reservoir, fish pond and bend, fish pond includes the first fish pond and the second fish pond, the water inlet and water outlet of water pump are separately connected priming reservoir and the first fish pond, the water pump opposite end in the first fish pond connects the one end in the second fish pond by bend, the other end in the second fish pond connects priming reservoir by bend, the water inlet of bend is equipped with for preventing fish from entering the iron net of bend, ozone generator is additionally provided in the middle part of bend, first fish pond and the second fish pond are equipped with sensor and food throwing machine, sensor includes water velocity sensor and oxygen-containing quantity sensor, food throwing machine is for delivering fish food, water pump, sensor and food throwing machine are all connected with control centre.The present invention can put the fry of greater density in a suitable place to breed in lesser fish pond space, so that the fry in fish pond will not be dead because of anoxic.
Description
Technical field
The present invention relates to fish culture technical fields, and in particular to a kind of fish culture in running water system and method.
Background technique
Fish culture in running water is exactly to be breeded fish with flowing water.Fish can be made to obtain sufficient oxygen in this way, contained in running water abundant
Water-soluble oxygen absorbed for fish, increase dissolved oxygen amount, can be enhanced the travelling row of fish, stimulation fish body is moved about.It can also reinforce controlling
The growth of bacterium, avoids fish body from falling ill in water processed.Ideal fish culture in running water system should be carried out in the river water of flowing, close
Year due to river water pollution, the problems such as density of breeding fish is excessively high, be difficult to find the river water for meeting fish culture in running water now.Cause
This, most of fish culture in running water at this stage is all the flowing water using passive type, i.e., is recycled using water pump driving water flow, will
Multiple concatenated ponds connect, but due to the higher cost of fish culture in running water, how using lesser pool area, most
Small cost realizes that breeding fish for greater density is the technical issues of fish culture in running water urgently solves instantly.
Summary of the invention
To solve deficiency in the prior art, the present invention provides a kind of fast and efficiently fish culture in running water system and method, solution
It has determined the technical issues of fish culture in running water density can not be promoted in the prior art.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
A kind of fish culture in running water system, including control centre, water pump, priming reservoir, fish pond and bend, fish pond include the first fish pond and the
Two fish ponds, the water inlet and water outlet of water pump are separately connected priming reservoir and the first fish pond, and the water pump opposite end in the first fish pond passes through curved
Road connects the one end in the second fish pond, and the other end in the second fish pond connects priming reservoir by bend, and the water inlet of bend, which is equipped with, to be used for
It prevents fish from entering the iron net of bend, ozone generator is additionally provided in the middle part of bend, the first fish pond and the second fish pond are equipped with sensing
Device and food throwing machine, sensor include water velocity sensor and oxygen-containing quantity sensor, and food throwing machine is for delivering fish food, water pump, biography
Sensor and food throwing machine are all connected with control centre.
A kind of fish culture in running water system above-mentioned, food throwing machine are set to the water flow upstream in the first fish pond, the second fish pond.
A kind of fish culture in running water system above-mentioned, priming reservoir are equipped with grid and are equipped with removable filter net.
A kind of fish culture in running water system above-mentioned also plants water plant in priming reservoir.
A kind of method of fish culture in running water system above-mentioned, works according to the following steps：
S1：The parameters of system are set in control centre, and the parameters include oxygen content preset value H, water velocity
Value range V1-V2；
S2：When sensor detects the oxygen content in water lower than preset value H, oxygen content information is fed back into control centre, is controlled
Open water pump and ozone generator in center processed；
S3：The flow velocity of water in the first fish pond of sensor real-time detection and the second fish pond, by both the first fish pond and the second fish pond
Water velocity feeds back to control centre, and it is B that control centre, which calculates water velocity mean value in the first fish pond and the second fish pond, at B
When among V1-V2, pump rotary speed is constant, and when B is greater than or equal to V2, pump rotary speed is reduced, when B is less than or equal to V1,
Pump rotary speed improves；
The oxygen content of water in the first fish pond of sensor real-time detection and the second fish pond, by the oxygen content in the first fish pond and the second fish pond
Control centre is fed back to, the mean value that control centre calculates oxygen content in the first fish pond and the second fish pond is C, smelly when C is greater than H
Oxygen Generator stops working.
A kind of method of fish culture in running water system above-mentioned, the range of H is 6-8mg/L.
A kind of method of fish culture in running water system above-mentioned, V1 is 2m/s, and the V2 is 4m/s.
A kind of method of fish culture in running water system above-mentioned, the feeding frequency of food throwing machine is 1h/ times, and each feeding time is
5-10 minutes.
The beneficial effects obtained by the present invention are as follows：The present invention can put the fish of greater density in a suitable place to breed in lesser fish pond space
Seedling, so that the fry in fish pond will not be dead because of anoxic.
Detailed description of the invention
Fig. 1 is present system figure；
The meaning of appended drawing reference：1- control centre；2- water pump；The priming reservoir 3-；31- grid；4- sensor；The first fish pond 5-；6-
Bend；61- iron net；The second fish pond 7-；8- ozone generator；9- food throwing machine.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1：Present embodiment discloses a kind of fish culture in running water system, including control centre 1, water pump 2, priming reservoir 3,
Fish pond and bend 6, fish pond include the first fish pond 5 and the second fish pond 7, and the water inlet and water outlet of water pump 2 are separately connected priming reservoir 3
And first fish pond 5,2 opposite end of water pump in the first fish pond 5 connect the one end in the second fish pond 7 by bend 6, the second fish pond 7 it is another
End connects priming reservoir 3 by bend 6, and the water inlet of bend 6 is equipped with for preventing fish from entering the iron net 61 of bend 6, in bend 6
Portion is additionally provided with ozone generator 8, and the first fish pond 5 and the second fish pond 7 are equipped with sensor 4 and food throwing machine 9, and sensor 4 includes water
Velocity sensor and oxygen-containing quantity sensor are flowed, for food throwing machine 9 for delivering fish food, water pump 2, sensor 4 and food throwing machine 9 are all connected with control
Center 1 processed.
Food throwing machine 9 is set to the water flow upstream in the first fish pond 5, the second fish pond 7, and food throwing machine 9 is set to water flow upstream and makes
Institute's feeding object of food throwing machine 9 can more uniformly intersperse among inside fish pond with water flow, and fish food is prevented to be piled up at iron net 61,
Influence the Edible qualified of fish food.
Priming reservoir 3 is equipped with grid 31 and is equipped with removable filter net, and filter screen can play the water quality in fish pond
The effect of filter, filter screen should regularly replace, and prevent blocking, water degradation.
For the oxygen content of lifting system, increase natural food, the present embodiment preferably plants water in water plant priming reservoir 3
Grass, water plant are able to ascend the oxygen content of system entirety, also can provide natural food for the fish of system, additionally it is possible to play filtering
The effect of water quality.
The present embodiment also discloses the method for above-mentioned fish culture in running water system, system should be arranged in control centre 1 first
Parameters, the present embodiment parameters include oxygen content preset value H, water velocity value range V1-V2；The optimum value of H is
The optimum value of 6-8mg/L, V1 and V2 are 2,4ml/s respectively；When sensor 4 detects the oxygen content in water lower than preset value H,
Oxygen content information is fed back into control centre 1, water pump 2 and ozone generator 8 are opened by control centre 1.
The flow velocity of water in 4 real-time detection the first fish pond 5 of sensor and the second fish pond 7, by the first fish pond 5 and the second fish pond 7
The water velocity of the two feeds back to control centre 1, and control centre 1 calculates water velocity mean value in the first fish pond 5 and the second fish pond 7
For B, when B is among V1-V2,2 revolving speed of water pump is constant, and when B is greater than or equal to V2,2 revolving speed of water pump is reduced, when B is less than
Or when being equal to V1,2 revolving speed of water pump is improved；
The oxygen content of water in 4 real-time detection the first fish pond 5 of sensor and the second fish pond 7, by the first fish pond 5 and the second fish pond 7
Oxygen content feeds back to control centre 1, and the mean value that control centre 1 calculates oxygen content in the first fish pond 5 and the second fish pond 7 is C, works as C
When greater than H, ozone generator 8 stops working.
Specifically, the feeding frequency of the food throwing machine 9 of the present embodiment is 1h/ times, each feeding time is 5-10 minutes.
The present invention can put the fry of greater density in a suitable place to breed in lesser fish pond space, so that the fry in fish pond will not
It is dead because of anoxic.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of fish culture in running water system, it is characterised in that：Including control centre（1）, water pump（2）, priming reservoir（3）, fish pond and curved
Road（6）, the fish pond includes the first fish pond（5）And second fish pond（7）, the water pump（2）Water inlet and water outlet connect respectively
Connect priming reservoir（3）And first fish pond（5）, first fish pond（5）Water pump（2）Opposite end passes through bend（6）Connect the second fish pond
（7）One end, second fish pond（7）The other end pass through bend（6）Connect priming reservoir（3）, the bend（6）Water inlet
Equipped with for preventing fish from entering bend（6）Iron net（61）, the bend（6）Middle part be additionally provided with ozone generator（8）, described
First fish pond（5）With the second fish pond（7）It is equipped with sensor（4）And food throwing machine（9）, the sensor（4）Including water velocity
Sensor and oxygen-containing quantity sensor, the food throwing machine（9）For delivering fish food, the water pump（2）, sensor（4）And food throwing machine
（9）It is all connected with control centre（1）.
2. a kind of fish culture in running water system according to claim 1, it is characterised in that：The food throwing machine（9）It is set to first
Fish pond（5）, the second fish pond（7）Water flow upstream.
3. a kind of fish culture in running water system according to claim 1, it is characterised in that：The priming reservoir（3）Equipped with grid
（31）Equipped with removable filter net.
4. a kind of fish culture in running water system according to claim 1, it is characterised in that：The priming reservoir（3）Inside also plant water
Grass.
5. based on a kind of method of fish culture in running water system described in claim 1, it is characterised in that：It works according to step once：
S1：In control centre（1）The parameters of upper setting system, the parameters include oxygen content preset value H, water flow velocity
Spend value range V1-V2；
S2：Work as sensor（4）When detecting the oxygen content in water lower than preset value H, oxygen content information is fed back into control centre
（1）, control centre（1）Open water pump（2）And ozone generator（8）；
S3：Sensor（4）The first fish pond of real-time detection（5）With the second fish pond（7）The flow velocity of middle water, by the first fish pond（5）With
Two fish ponds（7）The water velocity of the two feeds back to control centre（1）, control centre（1）Calculate the first fish pond（5）With the second fish pond
（7）Middle water velocity mean value is B, when B is among V1-V2, water pump（2）Revolving speed is constant, when B is greater than or equal to V2, water
Pump（2）Revolving speed reduces, when B is less than or equal to V1, water pump（2）Revolving speed improves；
Sensor（4）The first fish pond of real-time detection（5）With the second fish pond（7）The oxygen content of middle water, by the first fish pond（5）With second
Fish pond（7）Oxygen content feed back to control centre（1）, control centre（1）Calculate the first fish pond（5）With the second fish pond（7）In contain
The mean value of oxygen amount is C, when C is greater than H, ozone generator（8）It stops working.
6. a kind of method of fish culture in running water system according to claim 5, it is characterised in that：The range of the H is 6-
8mg/L。
7. a kind of method of fish culture in running water system according to claim 5, it is characterised in that：The V1 is 2m/s, described
V2 is 4m/s.
8. a kind of method of fish culture in running water system according to claim 5, it is characterised in that：The food throwing machine（9）Throwing
Eating frequency is 1h/ times, and each feeding time is 5-10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810843013.3A CN108901991A (en) | 2018-07-27 | 2018-07-27 | A kind of fish culture in running water system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810843013.3A CN108901991A (en) | 2018-07-27 | 2018-07-27 | A kind of fish culture in running water system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108901991A true CN108901991A (en) | 2018-11-30 |
Family
ID=64416016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810843013.3A Pending CN108901991A (en) | 2018-07-27 | 2018-07-27 | A kind of fish culture in running water system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108901991A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004016168A (en) * | 2002-06-19 | 2004-01-22 | Active Twenty One:Kk | Land culture system |
| CN202829749U (en) * | 2012-10-16 | 2013-03-27 | 王金成 | Water purification device for fish farm |
| CN103651234A (en) * | 2013-12-10 | 2014-03-26 | 苏州市相城区新时代特种水产养殖场 | Water circulation cultivation system |
| CN105028291A (en) * | 2015-07-23 | 2015-11-11 | 杨国威 | Automatic fishpond |
| CN106614243A (en) * | 2016-09-13 | 2017-05-10 | 浙江大学 | High efficiency dirt collection and intelligent feeding system for fishpond recirculating aquaculture |
| CN206150196U (en) * | 2016-10-13 | 2017-05-10 | 深圳市丸子科技有限公司 | Aquaculture system |
| CN106688969A (en) * | 2016-11-11 | 2017-05-24 | 浙江科技学院 | Intelligent-control factory fish farming system |
| CN206507072U (en) * | 2017-01-14 | 2017-09-22 | 阿拉善盟创客科技有限公司 | A kind of circulating aquaculture system |
| CN107410128A (en) * | 2017-08-22 | 2017-12-01 | 胡忠义 | A kind of oxygen-enriched purification type aquaculture tank of timing feeding |
-
2018
- 2018-07-27 CN CN201810843013.3A patent/CN108901991A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004016168A (en) * | 2002-06-19 | 2004-01-22 | Active Twenty One:Kk | Land culture system |
| CN202829749U (en) * | 2012-10-16 | 2013-03-27 | 王金成 | Water purification device for fish farm |
| CN103651234A (en) * | 2013-12-10 | 2014-03-26 | 苏州市相城区新时代特种水产养殖场 | Water circulation cultivation system |
| CN105028291A (en) * | 2015-07-23 | 2015-11-11 | 杨国威 | Automatic fishpond |
| CN106614243A (en) * | 2016-09-13 | 2017-05-10 | 浙江大学 | High efficiency dirt collection and intelligent feeding system for fishpond recirculating aquaculture |
| CN206150196U (en) * | 2016-10-13 | 2017-05-10 | 深圳市丸子科技有限公司 | Aquaculture system |
| CN106688969A (en) * | 2016-11-11 | 2017-05-24 | 浙江科技学院 | Intelligent-control factory fish farming system |
| CN206507072U (en) * | 2017-01-14 | 2017-09-22 | 阿拉善盟创客科技有限公司 | A kind of circulating aquaculture system |
| CN107410128A (en) * | 2017-08-22 | 2017-12-01 | 胡忠义 | A kind of oxygen-enriched purification type aquaculture tank of timing feeding |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101664010B (en) | Cultivating method with variable-flow circulated water | |
| CN102077791B (en) | System and method for densely cultivating tilapia in flowing water under reservoir dam | |
| CN209964765U (en) | Fish and vegetable symbiotic culture system | |
| CN206835958U (en) | One kind circulation aquaculture system | |
| CN108323469A (en) | Pisces pool recirculated water ecological fish cultivating system | |
| DE60309555T2 (en) | Decentralized oxygen supply system for aquaculture | |
| CN107258634A (en) | Have the system and operation method of beach Spat culture and cultivation water process concurrently | |
| CN106614172A (en) | Farming apparatus for aquatic organisms living in sandy soil | |
| CN107232110A (en) | The screening technique and fry batch sorting device of fry batch classification | |
| CN104891617B (en) | A kind of floating flowing water culture sink | |
| CN207284797U (en) | A kind of trout fry rearing system | |
| CN109566514B (en) | Variable-flow circulating culture method and device | |
| CN108901991A (en) | A kind of fish culture in running water system and method | |
| CN103858801A (en) | Culture method of finless eel | |
| CN208129239U (en) | Pisces pool recirculated water ecological fish cultivating system | |
| CN201905137U (en) | Running water cultivating system under reservoir dam | |
| CN109279696A (en) | A kind of floating bed intelligent control operating system and its technique | |
| CN206699179U (en) | Increase the device of water oxygen level | |
| CN109526817A (en) | Sparus Latus pond brackish culture technology | |
| CN108401879A (en) | Controllable siphon alternating fish-vegetable symbiotic system | |
| CN212813292U (en) | Automatic irrigation equipment used in organic rice planting process | |
| CN105230531A (en) | Large-size crab cultivation method | |
| CN211510276U (en) | Fish and vegetable symbiotic nitrification balance adjusting system | |
| CN210445347U (en) | Automatic ecological crayfish breeding system | |
| CN106865918A (en) | A kind of water circulation treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |