CN114467826B - Fry counting device based on infrared counting and application thereof - Google Patents
Fry counting device based on infrared counting and application thereof Download PDFInfo
- Publication number
- CN114467826B CN114467826B CN202210121009.2A CN202210121009A CN114467826B CN 114467826 B CN114467826 B CN 114467826B CN 202210121009 A CN202210121009 A CN 202210121009A CN 114467826 B CN114467826 B CN 114467826B
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- shunt
- fry
- counting
- fish
- diversion
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- 241000251468 Actinopterygii Species 0.000 claims abstract description 69
- 230000003444 anaesthetic effect Effects 0.000 claims abstract description 13
- 238000005192 partition Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000035882 stress Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 241001582957 Sebastes schlegelii Species 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000009894 physiological stress Effects 0.000 description 1
- 230000000717 retained effect 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
- A01K61/00—Culture of aquatic animals
- A01K61/90—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination
- A01K61/95—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination specially adapted for fish
-
- 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)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention relates to a fry counting device based on infrared counting and application thereof, comprising a fry collecting barrel, a counter and a shunt device; the shunt device comprises a plurality of shunt tubes arranged on the bottom plate of the fish gathering barrel and a plurality of shunt grooves which are in one-to-one correspondence with the plurality of shunt tubes; the counter is arranged at the outlet end of the shunt tank, and the horizontal height of the inlet end of the shunt pipe is higher than that of the outlet end. The flow dividing groove comprises a first flow guiding part and a second flow guiding part, the second flow guiding part is obliquely arranged, and the counter is arranged at the outlet end of the second flow guiding part. In addition, a baffle plate and a flow dividing baffle plate are arranged in the flow dividing device. The invention provides a device for carrying out twice diversion and twice diversion on fish fries, which is used for continuously counting the fish fries in batches and improving the accuracy and the counting efficiency of the fish fry counting; by arranging the anesthetic adding device, the counting errors caused by emergency damage and countercurrent of the fries are reduced.
Description
Technical Field
The invention relates to the field of fry breeding, in particular to a fry counting device based on infrared counting and application thereof.
Background
The accurate and rapid counting of the fries is an important guarantee for smooth running of the fry selling, circulating and feeding links. The existing fry counting method still mostly depends on the manual fry counting mode, the method is time-consuming and labor-consuming, and during the counting process, the fries are stressed by repeated fishing, loading and other manual operations, so that physical damage and physiological stress reaction are easily caused, and the survival rate of the subsequent transportation or the early stage of cultivation is affected.
In the prior art, the fish fry counting can be performed by computer vision and image processing technology, but in the fish fry counting process, professional fish body identification counting can only be performed aiming at a single variety, and meanwhile, the accuracy of the counting can be influenced by fish fry overlapping.
In the prior art, the fish fry counting can be performed through a photoelectric technology, the fish fry counting can be performed through an optical fiber sensor or an infrared counter, but the photoelectric technology method is easily affected by factors such as fish fry varieties, fish fry sizes and the like, the existing counting method is suitable for a single size of the fish fry, the requirements of the fish fry counting of different sizes and varieties cannot be met, in addition, damage can be caused to the fish fry in the counting process, and the survival of the fish fry in the later period is affected.
Disclosure of Invention
Aiming at the problems, the invention provides a fry counting device based on infrared counting, which does not need professional image acquisition and processing and performs batch and damage-free continuous counting and transferring of fries by shunting the fries.
The fry counting device based on the infrared counting comprises a fry collecting barrel, a counter and a shunting device for shunting the fries in the fry collecting barrel; the shunt device comprises a plurality of shunt tubes arranged on the bottom plate of the fish gathering barrel and a plurality of shunt grooves which are in one-to-one correspondence with the plurality of shunt tubes; the counter is arranged at the outlet end of the shunt tank, and the horizontal height of the inlet end of the shunt pipe is higher than that of the outlet end. The structure can split the flow through the split pipe and the split groove, so that counting errors caused by overlapping of a large number of fries are reduced, and technical accuracy is improved.
On the basis, the bottom plate is in a downward protruding arc shape, and the shunt grooves corresponding to shunt tubes close to the bottommost part of the bottom plate are largest. If the structure is a flat plate structure, partial fries can be detained on the flat plate and cannot enter the shunt tubes, and the arc-shaped bottom plate can enable the fries to completely slide down and enter the shunt tubes.
On the basis, the diversion channel comprises a first diversion part and a second diversion part, the second diversion part is obliquely arranged, and the counter is arranged at the outlet end of the second diversion part. This kind of structure can accomplish the fry reposition of redundant personnel in first water conservancy diversion portion department, and the velocity of flow is slow this moment, can reduce the damage to the fry, and the second water conservancy diversion portion that the slope set up simultaneously can improve the velocity of flow of the fry after the reposition of redundant personnel in the splitter box, improves count efficiency.
On the basis, the pipe diameters of the channels of the shunt pipes are different. The structure ensures that the fish fries with large sizes cannot pass through the shunt pipes with small pipe diameters, and ensures that the specifications of the fish fries in the shunt pipes with small pipe diameters are all small-size fish fries, thereby reducing the number of the small fish fries in the shunt pipes with large pipe diameters, reducing the probability that the small fish fries cannot be counted due to being covered by the large fish fries easily, and improving the accuracy of counting of the device.
On this basis, be provided with the reposition of redundant personnel baffle that is used for carrying out reposition of redundant personnel again to the fry of reposition of redundant personnel groove outflow in the shunt tank, the passageway of shunt tank is cut apart into a plurality of independent passageway to the reposition of redundant personnel baffle, and the exit end of every independent passageway all sets up a counter. The initial end of the split-flow baffle is positioned in the first flow guiding part and far away from the outlet of the split-flow pipe. This kind of structure can carry out the reposition of redundant personnel to the fry.
On the basis, the shunt grooves and the shunt baffle plates are fixedly connected or integrally formed.
On this basis, be provided with the baffle that is used for the fry to pass through between reposition of redundant personnel baffle and the splitter box, be provided with the through-hole on the baffle. This kind of structure can make the fry in the guiding gutter pass through the baffle, avoids blockking the fry, and simultaneously, the water conservancy diversion effect of baffle can make the fry pass through the through-hole in succession, avoids the fry to pile up in the second water conservancy diversion portion of guiding gutter, improves the accuracy of count.
On this basis, the upper portion of splitter box is provided with the apron, the apron can backstop the fry, prevents that the fry from spilling over from the top of splitter box to improve the accuracy of fry count.
On the basis, in order to reduce damage and counting errors of the fries caused by the stress reaction of the fries, the device further comprises an anesthetic adding device for adding anesthetic into the fish collecting barrel. The fry is lightly anesthetized by adding anesthetic, so that the fry is in a calm period, and the counting errors caused by stress reaction and countercurrent caused by operation are effectively reduced.
The application of the fry counting device based on infrared counting is that the fry counting device based on infrared counting is used for counting fries of different varieties and sizes.
The invention provides a device for carrying out twice diversion and twice diversion on fish fries, which is used for continuously counting the fish fries in batches and improving the accuracy and the counting efficiency of the fish fry counting; the device can meet the requirements of counting fish fries with different varieties and sizes; the device reduces the counting error caused by stress damage and countercurrent of fish fries in counting by arranging an anesthetic adding device.
Drawings
FIG. 1 is a schematic diagram of a fry counting device based on infrared counting;
fig. 2 is a schematic cross-sectional structure of the fish gathering barrel in embodiment 1;
fig. 3 is a schematic cross-sectional structure of the fish gathering barrel in embodiment 1 (the bottom plate is an arc plate);
fig. 4 is a schematic side view of the shunt channel of embodiment 1;
fig. 5 is a schematic structural view of the separator described in embodiment 1;
fig. 6 is a schematic diagram of a structure in which a cover plate is provided on the counting device in embodiment 1.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Example 1
As shown in fig. 1 and 2, the fry counting device based on infrared counting comprises a fry collecting barrel 2 and a counter 3, and further comprises a shunting device 4 for shunting the fry in the fry collecting barrel 2; the shunt device 4 comprises a plurality of shunt tubes 4-1 arranged on a bottom plate 4-3 of the fish gathering barrel 2 and a plurality of shunt grooves 4-2 which are in one-to-one correspondence with the shunt tubes 4-1, and the shunt tubes 4-1 are communicated with the fish gathering barrel 2; the counter 3 is arranged at the outlet end of the shunt tank 4-2, and the inlet end of the shunt tube 4-1 is higher than the outlet end. In the structure, the bottom plate 4-3 can conduct first diversion on the fries in the fish gathering barrel 2 in a specific path, so that the fries can only enter the diversion grooves 4-2 corresponding to the diversion pipes 4-1 through the diversion pipes 4-1, and first diversion on the fries is completed.
As a specific scheme, the number of the shunt tubes 4-1 is equal to that of the shunt grooves 4-2, and the shunt tubes are in one-to-one correspondence, so that fries in the shunt tubes can uniquely enter the shunt grooves 4-2 connected with the shunt tubes; the counter 3 may be an infrared counter, and the specific model may be: the infrared counter is provided with a plurality of infrared counters which are respectively arranged at the outlet ends of the shunt grooves 4-2 and used for respectively counting the shunt grooves 4-2.
On this basis, as shown in fig. 3, the bottom plate 4-3 is in a downward convex arc shape, and the shunt groove 4-2 corresponding to the shunt tube 4-1 near the bottommost part of the bottom plate 4-3 is largest. The arc-shaped bottom plate 4-3 can enable all fries to slide downwards to enter the shunt tubes 4-1, if the fish fries are of a flat plate structure, partial fries can be retained on the flat plate and cannot enter the shunt tubes 4-1, in addition, as the fries enter the fish collecting barrel 2 and are gathered downwards under the action of gravity, the quantity of the fries passing through the shunt tubes 4-1 near the bottommost part of the bottom plate 4-3 is the greatest, and therefore the width of the shunt grooves 4-2 corresponding to the shunt tubes 4-1 is the greatest, so that the fries can continuously and quickly pass through the shunt grooves 4-2.
On this basis, as shown in fig. 4, the shunt groove 4-2 includes a first flow guiding portion 4-22 and a second flow guiding portion 4-23, the second flow guiding portion 4-23 is obliquely arranged, and the counter 3 is arranged at an outlet end of the second flow guiding portion 4-23. The first diversion part 4-22 and the second diversion part 4-23 are at a certain angle, preferably, the included angle between the first diversion part 4-22 and the second diversion part is 135-180 degrees, the structure can finish the diversion of the fries at the first diversion part 4-22, the flow speed is low, the damage to the fries can be reduced, meanwhile, the second diversion part 4-23 which is obliquely arranged can improve the flow speed of the diverted fries in the diversion groove 4-2, and the counting efficiency is improved.
On the basis, in order to further reduce the situation that the fish fry cannot be accurately counted due to overlapping coverage caused by different sizes of the fish fry, the pipe diameters of the channels of the plurality of shunt pipes 4-1 are different. The structure ensures that the fish fries with large sizes cannot pass through the shunt tubes 4-1 with small pipe diameters, and ensures that the specifications of the fish fries in the shunt tubes 4-1 with small pipe diameters are all small-size fish fries, thereby reducing the number of the small fish fries in the shunt tubes 4-1 with large pipe diameters, reducing the probability that the small fish fries cannot be counted due to being covered by the large fish fries easily, and improving the accuracy of counting of the device.
On the basis, in order to further split the fries, as shown in fig. 1, a split baffle 4-21 for splitting the fries flowing out of the split groove 4-2 again is arranged in the split groove 4-2, the split baffle 4-21 divides the channel of the split groove 4-2 into a plurality of independent channels, and a counter 3 is arranged at the outlet end of each independent channel. The fries are split for the second time through a plurality of channels formed by the split partition boards 4-21.
Preferably, the diversion trench 4-2 and the diversion baffle 4-21 are fixedly connected or integrally formed.
As an aspect, the length of the diversion baffle 4-21 is smaller than the length of the diversion groove 4-2, the start end of the diversion baffle 4-21 is located in the first diversion portion 4-22 and far away from the outlet of the diversion pipe 4-1, and the end of the diversion baffle 4-21 is located at the end face of the second diversion portion 4-23 far away from the first diversion portion 4-22. On the one hand, the structure can realize stable split, the speed of fish fry transmission is improved after split, if the length of the split partition board 4-21 is too small, the split partition board is only arranged in the second flow guide part 4-23 of the split groove 4-2, the fish fry slides down at a high speed, and the edge of the split partition board is impacted to be damaged easily.
It should be noted that, a plurality of diversion baffles 4-21 may be disposed in one diversion trench 4-2, and the number of the diversion baffles 4-21 is designed according to the size of the diversion trench 4-1 and the diversion trench 4-2, which is not limited herein.
On the basis, as shown in fig. 1 and 5, a partition plate 4-4 is arranged at the joint of the first diversion part 4-22 and the second diversion part 4-23, and a through hole 4-41 for the passage of fish fries is arranged on the partition plate 4-4. The flow guiding function of the baffle plate 4-4 can enable the fries to sequentially pass through the through holes 4-41, so that the fries are prevented from being stacked in the second flow guiding part 4-23 of the flow dividing groove 4-2, and the counting accuracy is improved.
On this basis, as shown in fig. 6, the upper portion of the shunt groove 4-2 is provided with a cover plate 7. The cover plate 7 can be arranged above the first diversion part 4-22 or above the first diversion part 4-22 and the second diversion part 4-23, and the structure can prevent the fries from overflowing from the upper part of the diversion groove 4-2, and can be used for installing the counter 3 if the cover plate 7 extends to the outlet end of the second diversion part 4-23, and simultaneously ensure that the fries are all counted by the counter 3.
On the basis, in order to reduce the damage and technical errors of the fry caused by the stress reaction of the fry, the device further comprises an anesthetic adding device 9 for adding anesthetic into the fry collecting barrel 2. The fry is lightly anesthetized by adding anesthetic, so that the fry is in a calm period, and the counting errors caused by stress reaction and countercurrent caused by operation are effectively reduced. Specifically, the anesthetic adding device 9 pumps the anesthetic, which may be MS222, disposed in the anesthetic adding device 9 into the fish gathering barrel 2 through a water pump (not shown).
In addition, the device can be further provided with a movable support 1 for placing the fish collecting barrel 2 and the diversion device 4 and a fish receiving water tank 5, and the movable support 1 is provided with an object stage 1-1 capable of adjusting the height so as to adapt to the requirements of different counting environments. The fish collecting barrel 2 is arranged above the movable support 1, the fish fries to be counted can be directly poured into the fish collecting barrel 2 manually, the fish fries can be pumped into the fish collecting barrel 2 from the fish pond through the fish pump, and the fish fries are discharged through the fish receiving water tank 5 after being counted by the counter 3.
Example 2
The use of the fry counting device based on infrared counting in the embodiment 1 is used for counting fries of different varieties and different sizes.
In the process of breeding the sebastes schlegeli, the full length of the fish fry is about 20cm, the average weight is about 80g, 4 shunt tubes 4-1 are arranged, the tube diameters are 15cm, 20cm, 25cm and 30cm, 4 shunt grooves 4-2 are in one-to-one correspondence, the widths of the shunt grooves 4-2 are 23cm, 27cm, 31cm and 35cm respectively, 3 shunt baffle plates 4-21 are respectively arranged in the shunt grooves 4-2 with different widths, the shunt baffle plates are evenly distributed in each shunt groove according to the width of the shunt groove, the fish fry is lightly anesthetized by using MS222, and the fish fry is counted by adopting an infrared counter, and the result is as follows:
3 times of counting experiments are carried out on fish fries, wherein the manual counting results are respectively 1000 tails, 5000 tails and 10000 tails, the counting results of the device are respectively 995 tails, 4923 tails and 9895 tails, and the accuracy rate of the manual counting is 99.5%, 98.46% and 98.95% relative to that of the manual counting, and exceeds 98%.
Therefore, the fish fry counting efficiency can be improved while the counting accuracy is ensured through the operations of light anesthesia, twice diversion and twice diversion of the fish fry.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (2)
1. The fry counting device based on the infrared counting comprises a fry collecting barrel (2) and a counter (3), and is characterized by further comprising a shunting device (4) for shunting the fries in the fry collecting barrel (2); the shunt device (4) comprises a plurality of shunt tubes (4-1) arranged on a bottom plate (4-3) of the fish gathering barrel (2) and a plurality of shunt grooves (4-2) which are in one-to-one correspondence with the plurality of shunt tubes (4-1); the counter (3) is arranged at the outlet end of the shunt groove (4-2), and the horizontal height of the inlet end of the shunt tube (4-1) is higher than that of the outlet end;
the flow dividing groove (4-2) comprises a first flow guiding part (4-22) and a second flow guiding part (4-23), the second flow guiding part (4-23) is obliquely arranged, and the counter (3) is arranged at the outlet end of the second flow guiding part (4-23);
a diversion baffle (4-21) for diverting the fish fry flowing out of the diversion trench (4-2) again is arranged in the diversion trench (4-2), the diversion baffle (4-21) divides the channel of the diversion trench (4-2) into a plurality of independent channels, and a counter (3) is arranged at the outlet end of each independent channel;
the starting end of the flow dividing partition plate (4-21) is positioned in the first flow guiding part (4-22) and far away from the outlet of the flow dividing pipe (4-1);
the pipe diameters of the channels of the plurality of shunt pipes (4-1) are different;
the bottom plate (4-3) is in a downward protruding arc shape, and the shunt groove (4-2) corresponding to the shunt tube (4-1) close to the bottommost part of the bottom plate (4-3) is largest;
a partition board (4-4) is arranged at the joint of the first diversion part (4-22) and the second diversion part (4-23), and a through hole (4-41) for the fish fry to pass through is arranged on the partition board (4-4);
a cover plate (7) is arranged at the upper part of the shunt groove (4-2);
the fry counting device also comprises an anesthetic adding device (9) for adding anesthetic into the fish collecting barrel (2).
2. Use of an infrared counting based fry counting device, characterized in that the infrared counting based fry counting device of claim 1 is used for counting.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210121009.2A CN114467826B (en) | 2022-02-09 | 2022-02-09 | Fry counting device based on infrared counting and application thereof |
| ZA2022/02409A ZA202202409B (en) | 2022-02-09 | 2022-02-25 | Fry counting apparatus based on infrared counting and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210121009.2A CN114467826B (en) | 2022-02-09 | 2022-02-09 | Fry counting device based on infrared counting and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114467826A CN114467826A (en) | 2022-05-13 |
| CN114467826B true CN114467826B (en) | 2024-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210121009.2A Active CN114467826B (en) | 2022-02-09 | 2022-02-09 | Fry counting device based on infrared counting and application thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114467826B (en) |
| ZA (1) | ZA202202409B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118387245B (en) * | 2024-07-01 | 2024-09-03 | 中国水产科学研究院黄海水产研究所 | Conveying system for fish fries of breeding worker and boat to enter cabin |
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|---|---|---|---|---|
| JPH06133667A (en) * | 1992-01-24 | 1994-05-17 | Seibu Polymer Kasei Kk | Apparatus for counting number of fishes |
| JP2001258421A (en) * | 2000-03-17 | 2001-09-25 | Shinmaywa Engineerings Ltd | Fry-transporting apparatus for counting number of fry |
| CN109937947A (en) * | 2019-04-24 | 2019-06-28 | 中国海洋大学 | Fig counter |
| CN111406694A (en) * | 2020-05-26 | 2020-07-14 | 中国水产科学研究院东海水产研究所 | Take fry bleeder device of tally function |
| CN211746279U (en) * | 2020-03-16 | 2020-10-27 | 东山集鑫海洋生物科技有限公司 | Sorting unit that fry was used |
| CN112085142A (en) * | 2020-08-29 | 2020-12-15 | 中国石油大学(华东) | Rapid counting device and counting method for large-batch fish fries |
| CN112931362A (en) * | 2021-02-01 | 2021-06-11 | 武汉联渔机械设备有限公司 | Fry counting device and fry counting method |
| CN213463476U (en) * | 2020-11-06 | 2021-06-18 | 福州海江湖渔业有限公司 | Collection device of fry sorter |
| CN213908014U (en) * | 2020-10-21 | 2021-08-10 | 铜仁学院 | Quick counting assembly of fry |
-
2022
- 2022-02-09 CN CN202210121009.2A patent/CN114467826B/en active Active
- 2022-02-25 ZA ZA2022/02409A patent/ZA202202409B/en unknown
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06133667A (en) * | 1992-01-24 | 1994-05-17 | Seibu Polymer Kasei Kk | Apparatus for counting number of fishes |
| JP2001258421A (en) * | 2000-03-17 | 2001-09-25 | Shinmaywa Engineerings Ltd | Fry-transporting apparatus for counting number of fry |
| CN109937947A (en) * | 2019-04-24 | 2019-06-28 | 中国海洋大学 | Fig counter |
| CN211746279U (en) * | 2020-03-16 | 2020-10-27 | 东山集鑫海洋生物科技有限公司 | Sorting unit that fry was used |
| CN111406694A (en) * | 2020-05-26 | 2020-07-14 | 中国水产科学研究院东海水产研究所 | Take fry bleeder device of tally function |
| CN112085142A (en) * | 2020-08-29 | 2020-12-15 | 中国石油大学(华东) | Rapid counting device and counting method for large-batch fish fries |
| CN213908014U (en) * | 2020-10-21 | 2021-08-10 | 铜仁学院 | Quick counting assembly of fry |
| CN213463476U (en) * | 2020-11-06 | 2021-06-18 | 福州海江湖渔业有限公司 | Collection device of fry sorter |
| CN112931362A (en) * | 2021-02-01 | 2021-06-11 | 武汉联渔机械设备有限公司 | Fry counting device and fry counting method |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202202409B (en) | 2022-03-30 |
| CN114467826A (en) | 2022-05-13 |
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