CN112167153A - Culture pond for parent prawns and water changing method - Google Patents

Culture pond for parent prawns and water changing method Download PDF

Info

Publication number
CN112167153A
CN112167153A CN202011188120.0A CN202011188120A CN112167153A CN 112167153 A CN112167153 A CN 112167153A CN 202011188120 A CN202011188120 A CN 202011188120A CN 112167153 A CN112167153 A CN 112167153A
Authority
CN
China
Prior art keywords
water
culture pond
pond
water level
valve
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
Application number
CN202011188120.0A
Other languages
Chinese (zh)
Inventor
张敏
冀德伟
胡利华
闫茂仓
黄贤克
张炯明
陈琛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Mariculture Research Institute
Original Assignee
Zhejiang Mariculture Research Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Mariculture Research Institute filed Critical Zhejiang Mariculture Research Institute
Priority to CN202011188120.0A priority Critical patent/CN112167153A/en
Publication of CN112167153A publication Critical patent/CN112167153A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/003Aquaria; Terraria
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04Arrangements for treating water specially adapted to receptacles for live fish

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The invention discloses a culture pond for parent prawns and a water changing method thereof, which are characterized by comprising a culture pond bottom which is arranged in a round or oval funnel shape, a water inlet pipe which is arranged by being attached to the wall of the pond bottom, a drain outlet and a water filtering net grid which are arranged in the center of the pond bottom and a high-value live bait recovery device which is connected with the drain outlet; the breeding pond of the scheme of the invention forms vortex by utilizing the impact force of water inflow, residual bait, excrement, shrimp shells and dead shrimps in the pond are gathered to the sewage discharge port, and the parent shrimps have a converse water habit and can actively prop up water flow to swim away from the free sewage discharge port, when the sewage discharge valve is opened, the gathered impurities in the pond are discharged along with waste water, and the available live baits are sorted out from the high-value live bait recovery device and are reused after being cleaned.

Description

Culture pond for parent prawns and water changing method
Technical Field
The invention belongs to the field of aquaculture, and relates to a culture pond for parent prawns and a water changing method.
Background
At present, the scale of industrial seedling culture is gradually enlarged, the volume of a culture pond is increased along with the increase, the volume of the culture pond is taken as an example, the shrimp is cultured by the aquatic product, in the process of the aquatic product seedling culture, 4-6 times of baits are fed into the pond every day, the soft granular feed comprises clamworms, oysters, squids and soft granular feed close to live bait nutrition, the seedlings cultured in the pond need to discharge old water through continuously supplementing new water to ensure the water quality requirement, when water is pumped and changed from the culture pond, the common flow is that a drain valve is opened to pump water, a screen is taken into the culture pond after the water level is reduced, the screen is used for stirring the water to roll impurities to be cleaned up together and is taken out, the flow needs to be carried out in the morning and at night every day, the damage to the cultured products by the water changing mode is very large, the damage is caused by the culture process of water changing, secondly, the artificial consumption is overla.
Disclosure of Invention
Aiming at the defects, the invention provides a culture pond for parent prawns, which is characterized in that: the device comprises a culture pond, wherein the culture pond is circular, the bottom of the culture pond is funnel-shaped, the lowest part of the bottom of the culture pond is provided with a drain outlet, a water filtering grid is arranged above the drain outlet, a water outlet pipe is connected below the water filtering grid, the other end of the water outlet pipe is connected with a high-value live bait recovery device, and the water outlet pipe is provided with a drain valve;
the water inlet device comprises a configuration reservoir for storing pre-prepared water in the culture pond, and a water inlet pipe for connecting the configuration reservoir and the culture pond, wherein the water inlet pipe is provided with a regulating valve, and an opening of the water inlet pipe is arranged in a manner of being attached to the bottom wall of the culture pond and is obliquely downwards anticlockwise;
the control device comprises a water level sensor, a thermostat, wall-mounted oxygenation equipment and a flow velocity sensor, wherein the water level sensor, the thermostat and the wall-mounted oxygenation equipment are positioned in the culture pond, and the flow velocity sensor is positioned in the culture pond and is also connected with a regulating valve and a drain valve.
Further, the high-value live bait recovery device is provided with multiple meshes and is used for separating and recovering recoverable baits in the discharged sewage.
Furthermore, the regulating valve and the drain valve are controlled by the control device to work, and the water level sensor is used for providing water level information for the control device so as to better control the regulating valve and the drain valve to change water for the culture pond.
Furthermore, the oxygenation equipment is detachably fixed in the culture pond in an air lifting mode and can be moved out of the culture pond at any time.
Further, still be provided with the sealed lid of drain on the drainage net bars, the sealed lid of drain articulates in breeding the bottom of the pond, and its articulated department farthest end is provided with the link, the link is used for connecting the haulage rope with switching drain.
Through the arrangement, the traction rope of the hanging ring pulls the hinged drain sealing cover to be opened and closed very conveniently, and the arrangement of the drain sealing cover can prevent bait from falling into the drain through the water filtering grating in the breeding process.
The method also comprises a water changing method for the culture pond of the parent prawns, which comprises the following steps:
s1: the worker checks and starts or automatically starts the culture pond for changing water within preset time;
s2: the control device of the culture pond receives a water changing command, sends a command to open the sealing cover of the sewage draining outlet, starts the sewage draining valve to drain water, and the water level sensor monitors water level information in real time and uploads the information to the control device;
s3: the waste water in the culture pond is slowly drained after the sewage discharge valve starts working, and the water level of the culture pond with the water level of 50-60 cm is slowly reduced to about 20 cm;
s4: after the water level sensor monitors that the water level is lower than the preset water level, the control device sends a command to control the drain valve to reduce the water yield, and opens the regulating valve to start to take water from a configured reservoir which is stored with preset salinity, temperature and pH which are the same as those of the water in the culture pond and inject the water into the culture pond;
s5: based on a water inlet pipe which is arranged in an anticlockwise inclined downward opening manner, a vortex is formed in the culture pond by using a sewage discharge outlet as a center through the impulsive force of inlet water and the bottom wall of the funnel-shaped culture pond;
s6: the residual baits, excreta, impurities, shrimp shells and dead shrimps sinking at the bottom of the pool are rolled by the large vortex at the moment and are gathered to the sewage outlet along the direction of the vortex to be slowly discharged;
s7: the high-value live bait recovery device of the sewage draining port filters the drained water, and the recoverable bait in the drained sewage is separated and recycled;
s8: after the regulating valve is opened to feed water in step S4, the water level sensor monitors the water level, and when the water level reaches 35 cm, the control device adjusts the water outlet quantity of the blowdown valve again to increase;
s9: meanwhile, the control device starts to count down after the regulating valve of the water inlet pipe is opened, closes the drain valve after the timing is finished, and forbids water outlet;
s10: after the drain valve is closed, the water level sensor monitors that the water level reaches about 60 centimeters, the control device sends a command to close the regulating valve, the regulating valve is closed to finish water changing, and the traction rope of the drain sealing cover is loosened to close the drain.
Compared with the prior art, the scheme of the invention has the beneficial effects that: according to the scheme of the invention, the impact force of water is utilized to form vortex to replace external force to generate vortex to collect impurities in water, the water inlet pipe is attached to the wall of the pond and is arranged in an anticlockwise and downward inclined manner, the bottom of the pond is in a conical shape, the drain outlet is arranged at the lowest depression, the habit of seedlings is met, the seedlings can be actively far away from the drain outlet, and through the control device, the water changing method disclosed by the invention is simple in design, scientific and reasonable, the working strength of operators is reduced, and the damage to parent shrimps in the water changing process is greatly avoided.
Drawings
FIG. 1 is a schematic structural view of a culture pond according to the scheme;
FIG. 2 is a schematic sectional view of the culture pond according to the present embodiment;
FIG. 3 is a detailed view of the culture pond A.
Description of the drawings: 1. a culture pond; 11. a sewage draining outlet; 2. a high value live bait recovery device; 21. a water outlet pipe; 22. a blowoff valve; 29. a water filtering net grid; 3. configuring a reservoir; 30. the sewage draining outlet is sealed and covered; 301. hanging a ring; 31. a water inlet pipe; 32. a water level sensor; 33. adjusting a valve; 5. and a control device.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflicting with each other.
As shown in the figure 1-2, the breeding density of the parent shrimps is generally 100-200 pieces in 30-40 square, each shrimp is 50-100 g, and bait is required to be fed for 4-6 times every day, including clamworm, oyster, squid and soft pellet feed which is close to the nutrition of live bait, so that the residual bait, excrement, impurities and shrimp shells in each day need to be cleaned, and the times are generally once in the morning and at night.
The water changing process of the culture pond for the parent prawns comprises the following steps:
s1: the worker checks and starts or automatically starts the culture pond 1 for changing water within preset time;
s2: the control device 5 of the culture pond 1 receives a water changing command, sends a command to open the sewage outlet sealing cover 30, starts the sewage valve 22 to drain water, and the water level sensor 32 monitors water level information in real time and uploads the information to the control device 5;
s3: the waste water in the culture pond 1 which starts to work is slowly drained by the blowoff valve 22, and the water level of the culture pond 1 with the water level of 50-60 cm is slowly reduced to 20 cm;
s4: after the water level sensor 32 monitors that the water level is lower than 20 centimeters, the control device 5 sends a command to control the drain valve 22 to reduce the water yield, and opens the regulating valve 33 to begin to take water from the preparation reservoir 3 which stores the culture solution which is prepared in advance and is the same as the pool water in the culture pool 1 and inject the water into the culture pool 1;
s5: based on the water inlet pipe 31 which is arranged in an anticlockwise oblique downward opening manner, a vortex is formed in the culture pond 1 by the impulsive force of the inlet water and the bottom wall of the funnel-shaped culture pond 1 by taking the sewage discharge port 11 as the center;
s6: the residual baits, excreta, impurities, shrimp shells and dead shrimps sinking at the bottom of the pond are rolled by the large vortex at the moment and gathered to the sewage outlet 11 along the direction of the vortex to be slowly discharged;
s7: the high value live bait recovery device 2 of the sewage draining outlet 11 performs multiple filtration on the drained water, and separates and recycles the recoverable bait in the drained sewage;
s8: after the regulating valve 33 is opened to feed water in step S4, the water level sensor 32 monitors the water level, and when the water level reaches 35 cm, the control device 5 readjusts the water outlet amount of the blowoff valve 22 to increase;
s9: meanwhile, the control device 5 starts to count down after the regulating valve 33 of the water inlet pipe 31 is opened, and closes the drain valve 22 to prohibit water outlet after the timing is finished;
s10: after the blowoff valve 22 is closed, the water level sensor 32 monitors that the water level reaches 60 cm, the control device 5 gives a command to close the regulating valve 33, close the regulating valve 33 to complete water change, and loosen the pulling rope of the drain sealing cover 30 to close the drain 11.
The maximum water yield of the regulating valve 33 in the above steps can be adjusted to be larger than that of the blowoff valve 22, and when the drainage water is simultaneously opened, the water inflow is larger than that of the drainage water, so that the water level in the tank is prevented from being abutted to 20 centimeters.
The culture in the water changing process can be fished out of the culture pond to isolate and change water according to the condition, but can not be disturbed frequently.
The scheme of the invention utilizes the impact force formed by the water pressure of the inlet water to form vortex to replace the prior art that the external force generates vortex to gather impurities in the water to be discharged, the water inlet pipe is attached to the wall of the pond and is arranged in an anticlockwise and downward inclined manner, the bottom of the culture pond is conical, the drain outlet is arranged at the lowest depression part to accord with the habit of the parent shrimps and enable the parent shrimps to actively keep away from the drain outlet, and the control device is used for the water changing method of the invention, which has simple design, is scientific and reasonable, continuously forms the vortex through the water pressure difference of the inlet water, lightens the working strength of operators, greatly avoids the damage to the parent shrimps in the water changing process, frequently and disturbs the mating and oviposition effects of the parent shrimps in the later period, has good application in the actual culture process, can automatically complete all operations only by carefully supervising of individual operators in the culture process designed according to the scheme, and compared with the frequently changed disturbed culture in the original group of people, not only waste time work efficiency still low, the damage to the parent shrimp is big moreover, is unfavorable for the mating work of laying eggs of later stage.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (6)

1. A culture pond for parent prawns is characterized in that: comprises that
The device comprises a breeding pond (1), wherein the breeding pond (1) is circular or oval, the bottom of the breeding pond is funnel-shaped, the lowest part of the center of the bottom of the breeding pond is provided with a sewage discharge outlet (11), a water filtering mesh grid (29) is arranged above the sewage discharge outlet (11), a water outlet pipe (21) is connected below the water filtering mesh grid, the other end of the water outlet pipe (21) is connected with a high-value live bait recovery device (2) and is provided with a sewage discharge valve (22);
the water inlet device comprises a configuration water storage tank (3) for storing pool water of the pre-prepared culture pool (1) and a water inlet pipe (31) for connecting the configuration water storage tank (3) and the culture pool (3), wherein an adjusting valve (33) is arranged on the water inlet pipe (31), and an opening of the water inlet pipe (31) is attached to the bottom wall of the culture pool (1) and is obliquely arranged anticlockwise and downwards;
the control device (5) comprises a water level sensor (32) positioned in the culture pond (1), a thermostat, oxygen increasing equipment and a flow velocity sensor positioned in the culture pond (1), and the control device (5) is also connected with a regulating valve (33) and a drain valve (22).
2. The culture pond for parent prawns according to claim 1, characterized in that: the high-value live bait recovery device (2) is provided with meshes and is used for separating and recovering recoverable baits in the discharged sewage.
3. The culture pond for parent prawns according to claim 1, characterized in that: the regulating valve (33) and the drain valve (22) are controlled by the control device (5) to work, and the water level sensor (32) is used for providing water level information for the control device (5) so as to better control the regulating valve (33) and the drain valve (22) to change water for the culture pond (1).
4. The culture pond for parent prawns according to claim 1, characterized in that: the oxygenation equipment is detachably fixed on the wall of the culture pond (1) in an air lifting mode and can be moved out of the culture pond (1) at any time.
5. The culture pond for parent prawns according to claim 1, characterized in that: still be provided with the sealed lid of drain (30) on drainage net bars (29), the sealed lid of drain (30) articulates and sets up in breed pond (1) bottom, and its articulated department farthest end is provided with link (301), link (301) are used for connecting the haulage rope with switching drain (11).
6. The method also comprises a water changing method for the culture pond of the parent prawns, which comprises the following steps:
s1: the worker checks and starts or automatically starts the culture pond (1) for changing water within a preset time;
s2: the control device (5) of the culture pond (1) receives a water changing command, sends a command to open the drain sealing cover (30), starts the drain valve (22) to drain water, and the water level sensor (32) monitors water level information in real time and uploads the information to the control device (5);
s3: the waste water in the culture pond (1) is slowly drained after the blowoff valve (22) starts to work, and the water level of the culture pond (1) with the water level of 50-60 cm is slowly reduced to about 20 cm;
s4: after the water level sensor (32) monitors that the water level is lower than the preset water level, the control device (5) sends a command to control the drain valve (22) to reduce the water yield, and opens the regulating valve (33) to begin to take water from the configuration reservoir (3) which is stored with the same salinity, temperature and pH as the water in the culture pond (1) and inject the water into the culture pond (1);
s5: based on a water inlet pipe (31) which is arranged in an anticlockwise inclined downward opening manner, a vortex is formed in the culture pond (1) by the impulsive force of inlet water and the bottom wall of the funnel-shaped culture pond (1) by taking the sewage discharge outlet (11) as the center;
s6: the residual baits, excrement, impurities, dead shrimps and shrimp shells which sink at the bottom of the pond are rolled by the large vortex at the moment and are gathered to the sewage outlet (11) along the direction of the vortex to be slowly discharged;
s7: the high-value live bait recovery device (2) of the sewage draining outlet (11) filters the drained water, and separates and recycles the recoverable bait in the drained sewage;
s8: after the regulating valve (33) is opened to feed water in step S4, the water level sensor (32) monitors the water level, and when the water level reaches 35 cm, the control device (5) adjusts the water outlet quantity of the blowdown valve (22) again to increase;
s9: meanwhile, the control device (5) starts to count down after the regulating valve (33) of the water inlet pipe (31) is opened, and closes the drain valve (22) to forbid water outlet after the timing is finished;
s10: after the sewage draining valve (22) is closed, the water level sensor (32) monitors that the water level reaches about 60 centimeters, the control device (5) sends a command to close the regulating valve (33), the regulating valve (33) is closed to finish water changing, and the pull rope of the sewage draining port sealing cover (30) is loosened to close the sewage draining port (11).
CN202011188120.0A 2020-10-30 2020-10-30 Culture pond for parent prawns and water changing method Pending CN112167153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011188120.0A CN112167153A (en) 2020-10-30 2020-10-30 Culture pond for parent prawns and water changing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011188120.0A CN112167153A (en) 2020-10-30 2020-10-30 Culture pond for parent prawns and water changing method

Publications (1)

Publication Number Publication Date
CN112167153A true CN112167153A (en) 2021-01-05

Family

ID=73916701

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011188120.0A Pending CN112167153A (en) 2020-10-30 2020-10-30 Culture pond for parent prawns and water changing method

Country Status (1)

Country Link
CN (1) CN112167153A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113057212A (en) * 2021-04-02 2021-07-02 东营市阔海水产科技有限公司 Dead shrimp sorting device
CN113475449A (en) * 2021-08-08 2021-10-08 广州蓝灵水产科技有限公司 Intelligent and efficient aquaculture sewage disposal device and working method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1071396A (en) * 1996-08-30 1998-03-17 Toyo Bio Reactor Kk Circulating apparatus for culture pond
CN205444301U (en) * 2016-01-04 2016-08-10 英山县名德鱼苗孵化养殖有限公司 Drainage at bottom of pond
CN206260567U (en) * 2016-12-17 2017-06-20 宁波大学 A kind of indoor culture pond for cultivating silvery pomfret
CN206413602U (en) * 2017-01-05 2017-08-18 杨书戈 A kind of industrial aquaculture pond
CN206851769U (en) * 2017-06-08 2018-01-09 常德正新农业科技发展有限公司 A kind of sturgeon culturing pond
CN209498273U (en) * 2018-12-15 2019-10-18 景泰晋成农业科技发展有限公司 A kind of white shrimp shrimp-cultivation pool with dirt eliminating function
CN110741997A (en) * 2018-07-07 2020-02-04 成都市爱购果果业有限公司 Can abandon still water and raise fish ecosystem who endangers
CN213427834U (en) * 2020-10-30 2021-06-15 浙江省海洋水产养殖研究所 Culture pond for parent prawns

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1071396A (en) * 1996-08-30 1998-03-17 Toyo Bio Reactor Kk Circulating apparatus for culture pond
CN205444301U (en) * 2016-01-04 2016-08-10 英山县名德鱼苗孵化养殖有限公司 Drainage at bottom of pond
CN206260567U (en) * 2016-12-17 2017-06-20 宁波大学 A kind of indoor culture pond for cultivating silvery pomfret
CN206413602U (en) * 2017-01-05 2017-08-18 杨书戈 A kind of industrial aquaculture pond
CN206851769U (en) * 2017-06-08 2018-01-09 常德正新农业科技发展有限公司 A kind of sturgeon culturing pond
CN110741997A (en) * 2018-07-07 2020-02-04 成都市爱购果果业有限公司 Can abandon still water and raise fish ecosystem who endangers
CN209498273U (en) * 2018-12-15 2019-10-18 景泰晋成农业科技发展有限公司 A kind of white shrimp shrimp-cultivation pool with dirt eliminating function
CN213427834U (en) * 2020-10-30 2021-06-15 浙江省海洋水产养殖研究所 Culture pond for parent prawns

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113057212A (en) * 2021-04-02 2021-07-02 东营市阔海水产科技有限公司 Dead shrimp sorting device
CN113057212B (en) * 2021-04-02 2022-05-31 东营市阔海水产科技有限公司 Dead shrimp sorting device
CN113475449A (en) * 2021-08-08 2021-10-08 广州蓝灵水产科技有限公司 Intelligent and efficient aquaculture sewage disposal device and working method thereof

Similar Documents

Publication Publication Date Title
CN213427834U (en) Culture pond for parent prawns
CN112167153A (en) Culture pond for parent prawns and water changing method
CN206024876U (en) Cray recirculating aquaculture system
CN108338115A (en) A kind of fish culture case
CN102210273A (en) New type culture method
CN109068618A (en) device and method for fish culture
CN108617555A (en) A kind of method that recirculated water promotes America hilsa herring parent mating fertilization
CN208509880U (en) A kind of multi-functional aquaculture tank
KR101549211B1 (en) Indoor culture system using upwelling flow for shellfish spat
CN213246432U (en) Grouper breeding system
US11778989B2 (en) Water changing device for aquaculture breeding
JP2018121578A (en) Oyster seedling collection method and aquaculture method
CN208029988U (en) A kind of fish culture case
CN2088331U (en) Net-box breeding device
CN208159799U (en) Seedling growing system
CN209359382U (en) A kind of aquaculture cement floor drainage
CN213029518U (en) Rice field eel hatching device of growing seedlings
CN208113803U (en) A kind of waste removal equipment of aquaculture pond
CN211241327U (en) Fish, shrimp and crab pond culture system
CN209628399U (en) A kind of paddlefish seed rearing device
CN113711961A (en) Culture box for shrimp graded culture and culture method thereof
US4389974A (en) Apparatus and method for rearing shrimp
CN108323461B (en) High-yield seedling raising system
CN109619015B (en) Multifunctional aquaculture pond
CN110583545A (en) Method for breeding seawater shellfish family in larval stage

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

Application publication date: 20210105

RJ01 Rejection of invention patent application after publication