CN115868435A - Tropical fish hatching box and hatching method thereof - Google Patents
Tropical fish hatching box and hatching method thereof Download PDFInfo
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- CN115868435A CN115868435A CN202211394814.9A CN202211394814A CN115868435A CN 115868435 A CN115868435 A CN 115868435A CN 202211394814 A CN202211394814 A CN 202211394814A CN 115868435 A CN115868435 A CN 115868435A
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- 230000012447 hatching Effects 0.000 title claims abstract description 103
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000011534 incubation Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 235000013601 eggs Nutrition 0.000 claims description 32
- 239000012535 impurity Substances 0.000 claims description 14
- 239000003381 stabilizer Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005457 optimization Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a tropical fish hatching box and a hatching method thereof. According to the invention, the motor is started, the output end of the motor drives the disc to rotate, the disc drives the cylinder to rotate by taking the motor as a center, the cylinder drives the moving plate and the baffle plate to move towards the right side, when the inner part of the baffle plate is communicated with the inner side of the inclined plate, the motor is closed, water flow conveyed by the miniature propeller drives the roes to move downwards, the roes pass through the inner part of the baffle plate and enter the bottom of the inner cavity of the incubation box, and because the volume of small fish is larger than that of the roes, the small fish cannot pass through the baffle plate, and after the roes are separated from the small fish, the small fish cannot damage the roes.
Description
Technical Field
The invention relates to the technical field of tropical fish incubation, in particular to a tropical fish incubation box and an incubation method thereof.
Background
Tropical fish: the tropical fish is grown in tropical waters and is divided into fresh water tropical fish and seawater tropical fish, but in the near tropical zone and the north and south tropical waters at the junction of the near tropical zone, the fish species with ornamental value are also classified into the tropical fish, so the distribution also comprises partial subtropical regions, and the tropical fish species living in fresh water are introduced.
In the tropical fish hatching process, in order to prevent that the big fish from eating the roe, can put into the hatching box with the tropical fish hatching inside, put into the water tank with the hatching box again and hatch the roe, traditional hatching box inner space is comparatively single, and after the roe hatching appears the small fish, the roe that the small fish can destroy still in the hatching has reduced tropical fish hatching efficiency.
Therefore, the tropical fish hatching box needs to be designed and modified to effectively prevent the phenomenon that the eggs are damaged by the small fish.
Disclosure of Invention
In order to solve the problems in the background art, the invention aims to provide a tropical fish hatching box and a hatching method thereof, which have the advantages of protecting fish eggs during hatching, and solve the problems that the internal space of the hatching box is single, when small fish appears after the fish eggs are hatched, the small fish can damage the fish eggs still in hatching, and the hatching efficiency of the tropical fish is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a tropical fish hatching box and hatching method thereof, includes the hatching box, the top and the bottom of hatching box inner wall both sides all fixedly connected with swash plate, the top and the bottom on hatching box surface all fixedly connected with filter screen, the right side fixedly connected with motor of hatching box inner wall rear side, the output fixedly connected with disc of motor, the left side fixedly connected with cylinder of disc front side, cylindrical surface cover is equipped with the movable plate, the left side fixedly connected with baffle of movable plate, the baffle is located the inboard of swash plate, the top and the bottom of hatching box all are provided with the lid, the both sides of lid all are provided with the cardboard, one side that the cardboard is close to the filter screen articulates the surface of hatching box through connecting block and round pin axle, the cardboard is kept away from one side fixedly connected with sloping block of hatching box, the top and the bottom equal threaded connection of hatching box surface have a stop collar, the inner wall of stop collar and the surface contact of sloping block, the cardboard is located the inside of stop collar, the inside fixedly connected with body of lid, the inside fixed mounting of body has miniature screw, the inside of body is kept away from one side fixedly connected with impurity filter screen of filter screen.
Preferably, the top and the bottom of the hatching box are provided with scrapers, and one side of each scraper, which is close to the micro propeller, penetrates through the inner side of the impurity filter screen and is fixedly connected to the surface of the micro propeller.
Preferably, a protection filter screen is fixedly connected to one side, close to the inclined plate, of the inner portion of the pipe body, and the protection filter screen is located on the inner side of the micro propeller.
Preferably, the surface of the limiting sleeve is fixedly connected with an anti-skidding ring, and the anti-skidding ring is positioned on the outer side of the hatching box.
Preferably, a sealing ring is fixedly connected to the surface of the cover body, and the surface of the sealing ring is in contact with the inner wall of the hatching box.
Preferably, a triangular block is fixedly connected to one side of the inclined plate close to the baffle, and the surface of the triangular block is fixedly connected to the inner wall of the hatching box.
Preferably, the top and the bottom of the front side of the disc are provided with stabilizer bars, the left side of each stabilizer bar is fixedly connected to the surface of the inclined plate, the right side of each stabilizer bar is fixedly connected to the right side of the inner wall of the hatching box, and the moving plate is slidably connected to the surface of each stabilizer bar.
Preferably, the method comprises the following steps:
s1: firstly, putting the roes into the top of an inner cavity of the hatching box, then putting the cover into the top and the bottom of the inner cavity of the hatching box, shifting the clamping plate to be in contact with the cover, rotating the limiting sleeve, moving the limiting sleeve to one side close to the pipe body, fixing the clamping plate when the limiting sleeve is in contact with the clamping plate, fixing the cover by the clamping plate, positioning the roes at the top of the inner cavity of the hatching box, hatching the roes, and executing S2;
s2: putting the hatching box into the water tank, enabling water to pass through the filter screen to enter the hatching box, starting the micro propeller when the flowing speed of the water in the hatching box needs to be increased, conveying the water in the water tank to the inside of the hatching box by the micro propeller, discharging the original water in the hatching box through the filter screen, and during the period, enabling the fish in the water tank to be incapable of contacting with the fish eggs through the matching of the hatching box, the filter screen and the cover body, and executing S3 when partial fish eggs in the hatching box are hatched and the small fish are prevented from damaging the fish eggs which are not hatched;
s3: the starter motor, the output of motor drives the disc rotation, the disc drives the cylinder and uses the motor to rotate as the center, the cylinder drives movable plate and baffle and moves to the right side, when the inside of baffle and the inboard intercommunication of swash plate, close the motor, the rivers that miniature screw carried drive the roe and move down, the roe passes the inside bottom that gets into the hatching box inner chamber of baffle, in the meantime, because the volume of little fish is greater than the roe, consequently, the little fish can't pass the baffle, after the roe separates with the little fish, the little fish then can't destroy the roe.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the motor is started, the output end of the motor drives the disc to rotate, the disc drives the cylinder to rotate by taking the motor as a center, the cylinder drives the moving plate and the baffle plate to move towards the right side, when the inner part of the baffle plate is communicated with the inner side of the inclined plate, the motor is closed, water flow conveyed by the miniature propeller drives the roes to move downwards, the roes pass through the inner part of the baffle plate and enter the bottom of the inner cavity of the incubation box, and because the volume of small fish is larger than that of the roes, the small fish cannot pass through the baffle plate, and after the roes are separated from the small fish, the small fish cannot damage the roes.
2. According to the invention, the scraper is arranged, so that the surface of the impurity filter screen can be cleaned, and the phenomenon that the impurity filter screen is blocked by impurities is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
FIG. 4 is an enlarged view of the structure of FIG. 1 at C according to the present invention;
FIG. 5 is a perspective view of a disk of the present invention;
fig. 6 is a perspective view of the swash plate of the present invention.
In the figure: 1. hatching boxes; 2. a sloping plate; 3. filtering with a screen; 4. a motor; 5. a disc; 6. a cylinder; 7. moving the plate; 8. a baffle plate; 9. a cover body; 10. clamping a plate; 11. a sloping block; 12. a position limiting sleeve; 13. a pipe body; 14. a micro propeller; 15. an impurity filter screen; 16. a squeegee; 17. a protective filter screen; 18. an anti-slip ring; 19. a seal ring; 20. a triangular block; 21. a stabilizer bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 6, the tropical fish hatching box and the hatching method thereof provided by the invention comprise a hatching box 1, sloping plates 2 are fixedly connected to the top and the bottom of both sides of the inner wall of the hatching box 1, filter screens 3 are fixedly connected to the top and the bottom of the surface of the hatching box 1, a motor 4 is fixedly connected to the right side of the rear side of the inner wall of the hatching box 1, a disc 5 is fixedly connected to the output end of the motor 4, a cylinder 6 is fixedly connected to the left side of the front side of the disc 5, a moving plate 7 is sleeved on the surface of the cylinder 6, a baffle 8 is fixedly connected to the left side of the moving plate 7, the baffle 8 is located inside the sloping plates 2, a cover 9 is arranged at both the top and the bottom of the hatching box 1, clamping plates 10 are arranged on both sides of the cover 9, one side of the clamping plate 10 close to the filter screens 3 is hinged to the surface of the hatching box 1 through a connecting block and a pin shaft, an inclined block 11 is fixedly connected to one side of the clamping plate 10 far away from the hatching box 1, a limiting sleeve 12 is in threaded connection with the top and the bottom of the surface of the hatching box 1, a pipe 13 is connected to the inner wall of the limiting sleeve 12, a pipe 13 fixed to an impurity of the pipe 13 fixed inside of the pipe 13, and a micro filter screen 13 is connected to one side of the pipe 13 far away from the filter screen 3.
Referring to fig. 2, the top and the bottom of the hatching box 1 are provided with scrapers 16, and one side of the scraper 16 close to the micro propeller 14 penetrates to the inner side of the impurity filtering screen 15 and is fixedly connected to the surface of the micro propeller 14.
As a technical optimization scheme of the invention, the scraper 16 is arranged, so that the surface of the impurity filter screen 15 can be cleaned, and the phenomenon that the impurity filter screen 15 is blocked by impurities is avoided.
Referring to fig. 2, a protection filter screen 17 is fixedly connected to one side of the interior of the pipe body 13 close to the inclined plate 2, and the protection filter screen 17 is located on the inner side of the micro propeller 14.
As a technical optimization scheme of the invention, the protection filter screen 17 is arranged, so that the fish eggs can be isolated from being contacted with the micro propeller 14, and the phenomenon that the micro propeller 14 damages the fish eggs is avoided.
Referring to fig. 3, the surface of the position-limiting sleeve 12 is fixedly connected with an anti-slip ring 18, and the anti-slip ring 18 is positioned at the outer side of the hatching box 1.
As a technical optimization scheme of the invention, the anti-slip ring 18 is arranged, so that the friction force between a user and the stop collar 12 can be increased, and the phenomenon of sliding in the process of pinching the stop collar 12 is avoided.
Referring to fig. 3, a sealing ring 19 is fixedly connected to a surface of the cover 9, and a surface of the sealing ring 19 is in contact with an inner wall of the hatching box 1.
As a technical optimization scheme of the invention, the sealing ring 19 is arranged, so that a gap between the cover body 9 and the hatching box 1 can be sealed, and the phenomenon that the cover body 9 is loosened through the gap is avoided.
Referring to fig. 6, a triangular block 20 is fixedly connected to one side of the inclined plate 2 close to the baffle 8, and the surface of the triangular block 20 is fixedly connected to the inner wall of the hatching box 1.
As a technical optimization scheme of the invention, the triangular block 20 is arranged, so that the inclined plate 2 can be reinforced, and the phenomenon of looseness in the use process of the inclined plate 2 is avoided.
Referring to fig. 4, the disc 5 is provided with stabilizer bars 21 at the top and bottom of the front side thereof, the stabilizer bars 21 are fixedly connected to the surface of the inclined plate 2 at the left side thereof, the stabilizer bars 21 are fixedly connected to the right side of the inner wall of the hatching box 1 at the right side thereof, and the movable plate 7 is slidably connected to the surface of the stabilizer bars 21.
As a technical optimization scheme of the present invention, the stabilizing rod 21 is provided to stabilize the moving plate 7, thereby preventing the moving plate 7 from tilting during movement.
Referring to fig. 1, the following steps are included:
s1: firstly, putting the fish eggs into the top of the inner cavity of the hatching box 1, then putting the cover body 9 into the top and the bottom of the inner cavity of the hatching box 1, shifting the clamping plate 10 to be in contact with the cover body 9, rotating the limiting sleeve 12, moving the limiting sleeve 12 to one side close to the pipe body 13, fixing the clamping plate 10 when the limiting sleeve 12 is in contact with the clamping plate 10, fixing the cover body 9 by the clamping plate 10, and hatching the fish eggs when the fish eggs are positioned at the top of the inner cavity of the hatching box 1 to execute S2;
s2: the method comprises the following steps that an incubation box 1 is placed inside a water tank, water passes through a filter screen 3 and enters the incubation box 1, when the flowing speed of the water inside the incubation box 1 needs to be increased, a micro propeller 14 is started, the micro propeller 14 conveys the water in the water tank to the inside of the incubation box 1, the original water inside the incubation box 1 is discharged through the filter screen 3, during the period, fish in the water tank cannot contact with fish eggs through the cooperation of the incubation box 1, the filter screen 3 and a cover body 9, and S3 is executed when small fish are prevented from damaging the fish eggs which are not incubated after the incubation of part of the fish eggs inside the incubation box 1 is finished;
s3: starting motor 4, motor 4's output drives disc 5 rotatoryly, disc 5 drives cylinder 6 and uses motor 4 to rotate as the center, cylinder 6 drives movable plate 7 and baffle 8 and moves to the right side, when the inside of baffle 8 and the inboard intercommunication of swash plate 2, close motor 4, the rivers that miniature screw 14 carried drive the roe and move down, the roe passes the bottom that the inside entering incubation box 1 inner chamber of baffle 8, in the meantime, because the volume of little fish is greater than the roe, consequently, the little fish can't pass baffle 8, after the roe separates with the little fish, the roe then can't destroy the roe.
The working principle and the using process of the invention are as follows: when the incubator is used, firstly, fish eggs are placed at the top of an inner cavity of the incubation box 1, then the cover body 9 is placed at the top and the bottom of the inner cavity of the incubation box 1, the clamping plate 10 is shifted to be in contact with the cover body 9, the limiting sleeve 12 is rotated, the limiting sleeve 12 moves towards one side close to the pipe body 13, when the limiting sleeve 12 is in contact with the clamping plate 10, the clamping plate 10 is fixed, the cover body 9 is fixed by the clamping plate 10, the fish eggs are positioned at the top of the inner cavity of the incubation box 1, when the fish eggs are incubated, the incubation box 1 is placed inside the water tank, water passes through the filter screen 3 to enter the incubation box 1, when the flow speed of the water inside the incubation box 1 needs to be increased, the micro propeller 14 is started, the micro propeller 14 conveys the water in the water tank to the inside of the incubation box 1, the original water inside the incubation box 1 is discharged through the filter screen 3, and during the period, the cooperation of the incubation box 1, the filter screen 3 and the cover body 9, make the fish in the water tank unable fish egg of contact, after the hatching of the inside part fish egg of hatching box 1 is accomplished, when preventing that the little fish from destroying the fish egg of not hatching completion, starting motor 4, motor 4's output drives disc 5 rotatory, disc 5 drives cylinder 6 and uses motor 4 to rotate as the center, cylinder 6 drives movable plate 7 and baffle 8 and moves to the right side, when the inside of baffle 8 and the inboard intercommunication of swash plate 2, close motor 4, the rivers that miniature screw 14 carried drive the fish egg and move down, the fish egg passes the inside bottom that gets into hatching box 1 inner chamber of baffle 8, and in the meantime, because the volume of little fish is greater than the fish egg, consequently, the little fish can't pass baffle 8, after the fish egg separates with the little fish, the little fish then can't destroy the fish egg, thereby the effect of fish egg in the protection hatching has been possessed.
In conclusion: according to the tropical fish hatching box and the hatching method thereof, the hatching box 1, the inclined plate 2, the filter screen 3, the motor 4, the disc 5, the cylinder 6, the moving plate 7, the baffle 8, the cover body 9, the clamping plate 10, the inclined block 11, the limiting sleeve 12, the pipe body 13, the micro propeller 14 and the impurity filter screen 15 are used in a matched mode, the problem that the inner space of the hatching box is single, after small fish appear in fish egg hatching, the small fish can damage the fish eggs still in hatching, and the hatching efficiency of the tropical fish is reduced is solved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A tropical fish hatching box comprises a hatching box (1), and is characterized in that: the hatching box comprises a hatching box (1), inclined plates (2) are fixedly connected to the top and the bottom of the two sides of the inner wall of the hatching box (1), a filter screen (3) is fixedly connected to the top and the bottom of the surface of the hatching box (1), a motor (4) is fixedly connected to the right side of the rear side of the inner wall of the hatching box (1), a disc (5) is fixedly connected to the output end of the motor (4), a cylinder (6) is fixedly connected to the left side of the front side of the disc (5), a movable plate (7) is sleeved on the surface of the cylinder (6), a baffle (8) is fixedly connected to the left side of the movable plate (7), the baffle (8) is positioned on the inner side of the inclined plates (2), covers (9) are arranged on the top and the bottom of the hatching box (1), clamping plates (10) are arranged on the two sides of the covers (9), one side, close to the filter screen (3), of the clamping plates (10) is hinged to the surface of the hatching box (1) through a connecting block and a pin shaft, an inclined block (11) is fixedly connected to one side, a limiting sleeve (12) is connected to the top and the inner wall (12) of the hatching box (10), and a pipe body (13) is connected to the inner wall (12) inside of the inner wall of the clamping plate (9), the inside fixed mounting of body (13) has miniature screw (14), body (13) inside one side fixedly connected with impurity filter screen (15) of keeping away from filter screen (3).
2. A tropical fish hatching box according to claim 1, wherein: the top and the bottom of the hatching box (1) are both provided with scrapers (16), and one side of each scraper (16) close to the micro propeller (14) penetrates through the inner side of the impurity filtering screen (15) and is fixedly connected to the surface of the micro propeller (14).
3. The tropical fish hatching box of claim 1, wherein: one side fixedly connected with protection filter screen (17) that body (13) inside is close to swash plate (2), protection filter screen (17) are located the inboard of miniature screw (14).
4. A tropical fish hatching box according to claim 1, wherein: the surface of the limiting sleeve (12) is fixedly connected with an anti-slip ring (18), and the anti-slip ring (18) is positioned on the outer side of the hatching box (1).
5. The tropical fish hatching box of claim 1, wherein: the surface of the cover body (9) is fixedly connected with a sealing ring (19), and the surface of the sealing ring (19) is in contact with the inner wall of the hatching box (1).
6. A tropical fish hatching box according to claim 1, wherein: one side fixedly connected with triangle piece (20) that swash plate (2) are close to baffle (8), the fixed surface of triangle piece (20) is connected at the inner wall of hatching box (1).
7. A tropical fish hatching box according to claim 1, wherein: the top and the bottom of disc (5) front side all are provided with stabilizer bar (21), the left side fixed connection of stabilizer bar (21) is on the surface of swash plate (2), the right side fixed connection of stabilizer bar (21) is on the right side of hatching box (1) inner wall, moving plate (7) sliding connection is on the surface of stabilizer bar (21).
8. The use method of the tropical fish hatching box according to claim 1, wherein: the method comprises the following steps:
s1: firstly, putting roes into the top of an inner cavity of an incubation box (1), then putting a cover body (9) into the top and the bottom of the inner cavity of the incubation box (1), shifting a clamping plate (10) to be in contact with the cover body (9), rotating a limiting sleeve (12), moving the limiting sleeve (12) to one side close to a pipe body (13), when the limiting sleeve (12) is in contact with the clamping plate (10), fixing the cover body (9) by the clamping plate (10), positioning the roes at the top of the inner cavity of the incubation box (1), incubating the roes, and executing S2;
s2: putting an incubation box (1) into a water tank, enabling water to pass through a filter screen (3) to enter the incubation box (1), starting a micro propeller (14) when the flow speed of the water in the incubation box (1) needs to be increased, conveying the water in the water tank to the inside of the incubation box (1) by the micro propeller (14), discharging the original water in the incubation box (1) through the filter screen (3), and during the period, enabling fish in the water tank to be incapable of contacting with fish eggs through the cooperation of the incubation box (1), the filter screen (3) and a cover body (9), and executing S3 when the small fish are prevented from damaging the fish eggs which are not incubated after the incubation of partial fish eggs in the incubation box (1) is finished;
s3: starting motor (4), the output of motor (4) drives disc (5) rotation, disc (5) drive cylinder (6) use motor (4) to rotate as the center, cylinder (6) drive movable plate (7) and baffle (8) move to the right side, when the inside of baffle (8) and the inboard intercommunication of swash plate (2), close motor (4), the rivers that miniature screw (14) were carried drive the roe and move down, the roe passes the inside bottom that gets into incubation box (1) inner chamber of baffle (8), and during, because the volume of little fish is greater than the roe, consequently, the little fish can't pass baffle (8), after the roe separates with the little fish, the little fish then can't destroy the roe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211394814.9A CN115868435A (en) | 2022-11-08 | 2022-11-08 | Tropical fish hatching box and hatching method thereof |
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| CN202211394814.9A CN115868435A (en) | 2022-11-08 | 2022-11-08 | Tropical fish hatching box and hatching method thereof |
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| CN112293317A (en) * | 2020-11-19 | 2021-02-02 | 中国水产科学研究院黑龙江水产研究所 | Method for detecting hatchability of fertilized eggs in salmon spawning site under natural condition |
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