A device for rearing of micropterus salmoides gynogenetic fry

Abstract

The application discloses a kind of female development fry cultivation equipment of large mouth bass, specifically belongs to large mouth bass fry technology field, including fixed plate, cultivation cylinder and grid device;Grid device includes sliding ring, stress resistance pole, connecting rod, slide rail and isolation baffle;The upper end of fixed plate is equipped with fence, and the sidewall of cultivation cylinder is equipped with sliding groove;Sliding ring is slidably arranged in sliding groove;Stress resistance pole side end and sliding ring upper end are tightly contacted, and the end of stress resistance pole and connecting rod are rotatably connected, and connecting rod is slidably arranged on slide rail, and correspondingly, slide rail is equipped with sliding slot;Fence is equipped with accommodating groove, and slide rail is rotatably connected on the groove wall of accommodating groove;Isolation baffle is fixed on slide rail, and located on the side away from connecting rod.The equipment has the following advantages: 1, single breeding large mouth bass fry, avoid fish fry between each other and death by cannibalism.2, by setting grid device, avoid fish fry in the process of breeding, jump out to ground or other breeding area, so as to damage the survival rate of fish fry.

Description

Technical Field

[0001] This invention belongs to the field of largemouth bass seedling technology, specifically relating to a largemouth bass gynogenetic seedling cultivation device. Background Technology

[0002] Largemouth bass (Micropterus salmoides), commonly known as California bass, is a ferocious carnivorous fish native to North America. Introduced to my country in the 1980s, it has become an important freshwater aquaculture species in the country through aquaculture and promotion. According to the "2023 China Fisheries Statistical Yearbook," the national bass farming output reached 802,500 tons in 2022, a 14.30% increase over the previous year, ranking among the top in terms of growth rate among freshwater aquaculture fish in my country. Currently, largemouth bass farming in my country faces problems such as germplasm degradation, frequent diseases, and a shortage of superior seedlings, which have seriously hindered the healthy development of the largemouth bass industry. Artificial induction of gynogenesis can accelerate the homozygosity of superior genes and rapidly fix superior genetic traits, thereby shortening the breeding process, and has now become an important technical means for fish genetic improvement.

[0003] Largemouth bass are naturally spawning fish, and artificial spawning techniques are still underdeveloped. This makes artificial induction of gynogenesis difficult, and the hatching rate of fry after induction is extremely low, making surviving largemouth bass gynogenic fry very valuable. Largemouth bass are highly predatory, and when food is scarce or there are significant differences in growth, cannibalism and cannibalism are common, leading to a low survival rate. Therefore, there is an urgent need to develop specialized equipment for raising largemouth bass gynogenic fry to improve their survival rate. Summary of the Invention

[0004] The purpose of this invention is to provide a breeding device for gynogenetic fry of largemouth bass, which has the following advantages: 1. Largemouth bass fry are raised individually, avoiding cannibalism and death among the fry. 2. By setting up a barrier device, the fry are prevented from jumping out onto the ground or into other breeding areas during the breeding process, thus reducing the survival rate of the fry.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A device for cultivating gynogenetic fry of largemouth bass includes a fixing plate, a cultivation cylinder for holding fry, and a barrier device to prevent fry from jumping out.

[0007] The blocking device includes a sliding ring, a force-bearing rod, a connecting rod, a slide rail rod, and an isolation baffle.

[0008] The upper end of the fixed plate is provided with a surrounding plate, and the side wall of the cultivation cylinder is provided with a sliding groove;

[0009] The sliding ring is slidably disposed in the sliding groove;

[0010] The side end of the force-bearing rod and the upper end of the sliding ring are pressed together. The end of the force-bearing rod and the connecting rod are rotatably connected. The end of the connecting rod facing away from the force-bearing rod is slidably mounted on the slide rail rod. Correspondingly, the slide rail rod is provided with a sliding groove.

[0011] The enclosure is provided with a receiving groove, and the slide rail is rotatably connected to the groove wall of the receiving groove;

[0012] The isolation baffle is fixed to the slide rail rod and is located on the side opposite to the connecting rod.

[0013] Working principles of sliding ring, force-bearing rod, connecting rod, slide rail rod, and isolation baffle:

[0014] When no operations are performed by staff: the state of the isolation barrier and Figure 3 The same applies to the vertical isolation barrier, which is used to prevent fish fry from jumping out during the rearing process. However, when staff feed the fish, the barrier becomes obstructive, making it easy for them to throw the food onto the outside of the sliding ring. Therefore, the barrier needs to be moved aside when feeding.

[0015] When feeding is needed, the staff lifts the force-applying lever. Since the lever and the sliding ring are fixed together by a connecting rod, the sliding ring also moves upwards. As the sliding ring moves upwards, the force-bearing rod moves upwards (sliding along its side), which in turn moves the end of the connecting rod upwards. This causes the end of the slide rail rod to tilt upwards. Since the slide rail rod is rotatably connected to the receiving slot, the isolation baffle flips outwards, providing ample space for the staff to throw food. Furthermore, during this process, the isolation baffle does not flip to a horizontal position; it maintains a lateral angle, thus preventing largemouth bass fry from jumping out when food is thrown in. Figure 3 Route ② is shown.

[0016] Preferably, the blocking device further includes a limiting rod, which is fixed to one end of the force-bearing rod facing away from the connecting rod.

[0017] The function of the limit rod: The limit rod is to prevent the lower end of the force-bearing rod from coming out.

[0018] Preferably, the blocking device further includes an elastic element, one end of which is fixed to the slide rail rod, and the other end is fixed to the bottom of the receiving groove.

[0019] The function of the elastic element: The elastic element is to provide a restoring force to the slide rail rod after it rotates, so that the slide rail rod remains in a horizontal state when no external force is applied.

[0020] Preferably, the blocking device further includes a force-applying operating rod and a fixed connecting rod, one end of which is fixed to the force-applying operating rod and the other end of which is fixed to the inner side of the sliding ring.

[0021] To further improve the survival rate of fish fry, the largemouth bass gynogenetic fry cultivation equipment also includes an oxygenation device to increase dissolved oxygen in the water.

[0022] The oxygenation device includes a first drive wheel, a first drive belt, a second drive belt, a second drive wheel, a third drive wheel, a sliding column, an agitating oxygenation plate, a positioning column, and a fixing rod;

[0023] The sliding ring is provided with a transmission rack at its side end, and the first transmission wheel and the transmission rack are meshed and connected for transmission.

[0024] The first drive wheel and the second drive wheel are synchronously connected by a first drive belt;

[0025] The second and third drive wheels are synchronously connected via a second drive belt;

[0026] The side end of the sliding column is provided with a transmission tooth segment, and the third transmission wheel is meshed with the transmission tooth segment for transmission.

[0027] The sliding column is slidably disposed in the positioning column. Correspondingly, the middle part of the positioning column is provided with a slot adapted for the sliding column to be inserted and slid. The slot wall is provided with a through groove for the transmission gear segment to be exposed.

[0028] The agitating oxygenation plate is fixed to the bottom of the sliding column;

[0029] One end of the fixing rod is fixed to the side of the cultivation tube, and the other end is fixed to the positioning column.

[0030] Working principles and advantages of the first drive wheel, first drive belt, second drive belt, second drive wheel, third drive wheel, sliding column, agitating oxygenation plate, positioning column, and fixing rod:

[0031] To simplify the operation for staff, allowing them to stir the water slightly while feeding the fish, thereby increasing dissolved oxygen in the water, and also to flush the fish fry's excrement from the side wall of the rearing tank to the bottom of the tank, an aeration device was installed.

[0032] Similarly, when the operator lifts the lever, the sliding ring also moves upward, causing the first transmission wheel to rotate via the transmission rack on the side of the sliding ring. The first transmission belt then drives the second transmission wheel to rotate, which in turn drives the third transmission wheel. Since the rotating rack on the sliding column and the third transmission wheel are engaged, the sliding column can simultaneously move up and down along the slot on the positioning column. This causes the agitator plate at the lower end of the sliding column to agitate, facilitating the removal of waste gas from the water. Simultaneously, the agitation increases the contact area between water and air, thus increasing the dissolved oxygen in the water. The principle is illustrated in ① to ⑤. Step ② has two instances, indicating that these two steps are performed simultaneously.

[0033] Preferably, the lower end of the force-applying operating rod is slidably disposed within the slot. When the force-applying operating rod slides within the slot, it is more stable, thus the sliding trajectory is in the vertical direction.

[0034] Preferably, the cultivation tube includes an upper fixing part and a lower flexible tube part, the sliding ring is slidably disposed on the inner end of the upper fixing part, and the end of the fixing rod facing away from the positioning post is fixed to the lower flexible tube part.

[0035] Advantages of the lower flexible hose: The lower flexible hose is made of flexible hose material, making it easy to store after deformation. Also, during cleaning, the inner space shortens after the hose deforms, making cleaning easier.

[0036] Preferably, a plug is screwed to the bottom end of the lower hose.

[0037] Advantages of the plug: The plug is rotatably installed at the lower end of the lower hose; after unscrewing, water can be released. Workers can also clean the inside of the hose through this end.

[0038] Preferably, the end of the force-applying lever facing away from the positioning post is equipped with a pull ring. The pull ring is provided to facilitate the operation of the force-applying lever by the operator.

[0039] Preferably, both sides of the agitator plate are provided with arc-shaped agitator strips, and the number of arc-shaped agitator strips is multiple.

[0040] Compared with the prior art, the beneficial effects of the present invention are:

[0041] 1. Raise largemouth bass fry separately to prevent them from biting each other and dying.

[0042] 2. By setting up barriers, fish fry can be prevented from jumping out onto the ground or into other aquaculture areas during the rearing process, which would reduce their survival rate.

[0043] 3. The equipment also integrates an oxygenation device, which can agitate the water, increase the contact area between water and air, increase dissolved oxygen in the water, and thus improve the survival rate of fish fry. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of a largemouth bass gynogenetic seedling cultivation device provided by the present invention;

[0045] Figure 2 A partial cross-sectional structural diagram (along the centerline) of a largemouth bass gynogenetic seedling cultivation device provided by the present invention;

[0046] Figure 3 A cross-sectional structural diagram (along the centerline) of a largemouth bass gynogenetic seedling cultivation device provided by the present invention.

[0047] In the diagram: 1. Fixed plate, 2. Upper fixed part, 3. Lower hose part, 4. Sliding ring, 5. First transmission wheel, 6. Transmission rack, 7. Second transmission wheel, 8. First transmission belt, 9. Second transmission belt, 10. Third transmission wheel, 11. Sliding column, 110. Agitating oxygenation plate, 12. Positioning column, 13. Fixed rod, 14. Force application operating rod, 15. Limiting rod, 16. Force-bearing abutment rod, 17. Connecting rod, 18. Slide rail rod, 19. Elastic element, 20. Isolation baffle, 21. Fixed connecting rod, 22. Pull ring, 23. Enclosure. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] From the perspective of practical application, the following description is provided for the largemouth bass gynogenetic seedling cultivation equipment:

[0050] A breeding device for female fry of largemouth bass, the main body of which includes a fixing plate 1, a breeding tube for holding fry, a barrier device to prevent fry from jumping out, and an oxygenation device for increasing dissolved oxygen in the water.

[0051] The blocking device consists of the following components:

[0052] The components include a sliding ring 4, a force-bearing rod 16, a connecting rod 17, a slide rail rod 18, an isolation baffle 20, a limiting rod 15, an elastic element 19, a force-applying operating rod 14, and a fixed connecting rod 21.

[0053] The connection method of the above components is as follows:

[0054] The upper end of the fixed plate 1 is provided with a surrounding plate 23, and the side wall of the cultivation cylinder is provided with a sliding groove;

[0055] The sliding ring 4 is slidably set in the sliding groove;

[0056] The side end of the force-bearing rod 16 and the upper end of the sliding ring 4 are pressed together. The end of the force-bearing rod 16 and the connecting rod 17 are rotatably connected. The end of the connecting rod 17 facing away from the force-bearing rod 16 is slidably mounted on the slide rail 18. Correspondingly, the slide rail 18 is provided with a sliding groove.

[0057] The enclosure 23 is provided with a receiving groove, and the slide rail rod 18 is rotatably connected to the groove wall of the receiving groove;

[0058] The isolation baffle 20 is fixed to the slide rail rod 18 and is located on the side opposite to the connecting rod 17.

[0059] Limiting rod 15 is fixed to one end of force-bearing rod 16 facing away from connecting rod 17.

[0060] One end of the elastic element 19 is fixed to the slide rail rod 18, and the other end is fixed to the bottom of the receiving groove.

[0061] One end of the fixed connecting rod 21 is fixed to the force-applying operating rod 14, and the other end is fixed to the inner side of the sliding ring 4.

[0062] Advantages of the blocking device:

[0063] The barrier is mainly designed to prevent fish fry from jumping out. However, when feeding the fry or observing their growth, the barrier can obstruct the view and make it inconvenient to throw food. Therefore, it is necessary to flip the barrier, which can be achieved through the barrier device.

[0064] The oxygenation device consists of the following components:

[0065] 5. A first transmission wheel, 8. A second transmission belt, 9. A second transmission wheel, 7. A third transmission wheel, 10. A sliding column, 11. An agitating oxygenation plate, 110. A positioning column, 12. A fixing rod, 13.

[0066] The connection method of the above components is as follows:

[0067] The sliding ring 4 has a transmission rack 6 on its side end, and the first transmission wheel 5 and the transmission rack 6 are meshed and connected for transmission.

[0068] The first drive wheel 5 and the second drive wheel 7 are synchronously connected by the first drive belt 8;

[0069] The second drive wheel 7 and the third drive wheel 10 are synchronously connected by the second drive belt 9;

[0070] The side end of the sliding column 11 is provided with a transmission tooth segment, and the third transmission wheel 10 is meshed with the transmission tooth segment for transmission.

[0071] The sliding column 11 is slidably disposed in the positioning column 12. Correspondingly, the positioning column 12 has a slot in the middle for the sliding column 11 to be inserted and slid. The slot wall has a through groove for the transmission gear segment to be exposed.

[0072] The agitator plate 110 is fixed to the bottom end of the sliding column 11;

[0073] One end of the fixing rod 13 is fixed to the side end of the cultivation tube, and the other end is fixed to the positioning post 12.

[0074] Advantages of oxygenation devices:

[0075] The main purpose of this device is to improve the success rate of largemouth bass fry rearing. By agitating the water, waste gas can be expelled, the contact area between water and air can be increased, and the dissolved oxygen in the water can be improved. This creates a flowing water environment, thereby greatly improving the success rate of largemouth bass fry rearing.

Claims

1. A device for cultivating female fry of largemouth bass, comprising a fixing plate (1) and a cultivation cylinder for holding fish fry, characterized in that, It also includes a barrier to prevent the fish fry from jumping out; The blocking device includes a sliding ring (4), a force-bearing rod (16), a connecting rod (17), a slide rail rod (18), and an isolation baffle (20); the upper end of the fixed plate (1) is provided with a surrounding plate (23), and the side wall of the cultivation cylinder is provided with a sliding groove; the sliding ring (4) is slidably disposed in the sliding groove; the side end of the force-bearing rod (16) and the upper end of the sliding ring (4) are pressed together, the end of the force-bearing rod (16) and the connecting rod (17) are rotatably connected, and the end of the connecting rod (17) facing away from the force-bearing rod (16) is slidably disposed on the slide rail rod (18), and correspondingly, the slide rail rod (18) is provided with a sliding groove; The enclosure (23) is provided with a receiving groove, and the slide rail (18) is rotatably connected to the groove wall of the receiving groove; the isolation baffle (20) is fixed on the slide rail (18) and is located on the side opposite to the connecting rod (17); The blocking device also includes an elastic element (19), one end of which is fixed to the slide rail rod (18), and the other end is fixed to the bottom of the receiving groove; the blocking device also includes a force-applying operating rod (14) and a fixed connecting rod (21), one end of which is fixed to the force-applying operating rod (14), and the other end is fixed to the inner side of the sliding ring (4); It also includes an oxygenation device for increasing dissolved oxygen in water; the oxygenation device includes a first drive wheel (5), a first drive belt (8), a second drive belt (9), a second drive wheel (7), a third drive wheel (10), a sliding column (11), an agitating oxygenation plate (110), a positioning column (12), and a fixing rod (13). The sliding ring (4) has a transmission rack (6) on its side end. The first transmission wheel (5) and the transmission rack (6) are meshed and connected. The first transmission wheel (5) and the second transmission wheel (7) are synchronously connected through the first transmission belt (8). The second transmission wheel (7) and the third transmission wheel (10) are synchronously connected through the second transmission belt (9). The sliding column (11) has a transmission tooth segment on its side end. The third transmission wheel (10) and the transmission tooth segment are meshed and connected. The sliding column (11) is slidably disposed in the positioning column (12). Correspondingly, the positioning column (12) has a slot in the middle for the sliding column (11) to be inserted and slid. The slot wall has a through groove for the transmission tooth segment to be exposed. The stirring oxygenation plate (110) is fixed to the bottom end of the sliding column (11). One end of the fixing rod (13) is fixed to the side end of the cultivation tube, and the other end is fixed to the positioning column (12).

2. The equipment for cultivating gynogenetic seedlings of largemouth bass according to claim 1, characterized in that, The blocking device also includes a limiting rod (15), which is fixed to one end of the force-bearing rod (16) facing away from the connecting rod (17).

3. The equipment for cultivating gynogenetic seedlings of largemouth bass according to claim 1, characterized in that, The lower end of the force-applying operating lever (14) is slidably disposed in the slot.

4. The equipment for cultivating gynogenetic seedlings of largemouth bass according to claim 1, characterized in that, The incubation tube includes an upper fixing part (2) and a lower flexible tube part (3). The sliding ring (4) is slidably disposed on the inner end of the upper fixing part (2). The end of the fixing rod (13) facing away from the positioning post (12) is fixed to the lower flexible tube part (3).

5. The equipment for cultivating gynogenetic seedlings of largemouth bass according to claim 4, characterized in that, A plug (24) is screwed to the bottom end of the lower hose (3).

6. The equipment for cultivating gynogenetic seedlings of largemouth bass according to claim 1, characterized in that, The end of the force-applying operating lever (14) facing away from the positioning post (12) is provided with a pull ring (22).

7. The equipment for cultivating gynogenetic seedlings of largemouth bass according to claim 1, characterized in that, Both sides of the agitator plate (110) are provided with arc-shaped agitator bars, and the number of the arc-shaped agitator bars is multiple.

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