Efficient hatching method of sticky fertilized eggs of fish

Abstract

This invention discloses a highly efficient method for hatching fish adhesive fertilized eggs, specifically including the following steps: Adhesive eggs and sperm are mixed with feathers to form fertilized eggs; 20-40 times their volume of 0.65%-0.9% physiological saline is added, and the mixture is further mixed with feathers to form a fertilized egg mixture; the egg-collecting part is horizontally placed in the hatching tank using a control mechanism, with the egg-collecting part 10-20 cm above the water surface; the fertilized egg mixture is then poured into a funnel, and the funnel is moved back and forth and side to side to ensure the fertilized egg mixture flows evenly onto the egg-collecting part; the egg-collecting part is rotated using a control mechanism to ensure that all positions on the egg-collecting part are covered with fertilized eggs; and finally, the egg-collecting part with the fertilized eggs attached is vertically hung in the hatching tank using a control mechanism. The egg-collecting part of this invention includes a straight rod and multiple sets of filaments. The multiple sets of filaments are distributed vertically along the straight rod to form a columnar structure. The columnar structure has a three-dimensional spatial shape, good air permeability, and can collect eggs in different areas, resulting in a high egg carrying capacity. Furthermore, it prevents the fertilized eggs from piling up and squeezing each other, effectively avoiding cross-infection.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, specifically to a method for efficient hatching of fish adhesive fertilized eggs. Background Technology

[0002] Sticky eggs refer to fish eggs with mucus or sticky threads on the surface of the egg membrane, such as the eggs laid by carp, crucian carp, blunt snout bream, grass carp, and fine-scaled gudgeon.

[0003] Current incubation methods involve directly scattering adhesive fertilized eggs onto common ovaries such as palm bark or netting. However, because palm bark and netting are flat and sheet-like structures, they have two drawbacks: firstly, the egg-carrying capacity is low; secondly, fertilized eggs tend to accumulate and become compressed on the surface. When individual eggs die and develop water mold, cross-infection can occur across the entire surface. Furthermore, poor aeration during incubation allows impurities in the water to easily adhere to the fertilized eggs, resulting in a low hatching rate. Therefore, this invention proposes a highly efficient incubation method for adhesive fertilized fish eggs that can solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a method for efficient hatching of fish adhesive fertilized eggs, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for efficient hatching of fish adhesive fertilized eggs, specifically comprising the following steps:

[0006] S1. Mix the sticky eggs and sperm with a feather to form a fertilized egg, add 20-40 times the volume of 0.65%-0.9% physiological saline, and mix with a feather to form a fertilized egg mixture.

[0007] S2. The egg-collecting part is horizontally positioned in the hatching tank by the control mechanism, so that the egg-collecting part is 10-20cm above the water surface;

[0008] S3. Then pour the fertilized egg mixture into the funnel, control the funnel to move back and forth and left and right, so that the fertilized egg mixture flows evenly on the egg-receiving part, and rotate the egg-receiving part by controlling the mechanism to make the egg-receiving part full of fertilized eggs.

[0009] S4. Then, the egg-bearing part that holds the fertilized eggs is vertically hung in the hatching tank by the control mechanism.

[0010] As a preferred embodiment of the present invention, the incubation pool is provided with pipes for water inlet and drainage, and liquid oxygen is used for oxygenation in the incubation pool.

[0011] As a preferred technical solution of the present invention, when the fertilized egg mixture flows from the funnel to the egg receiving part, the thumb is stuck at the upper end of the funnel, the index and middle fingers are blocked at the lower end of the funnel opening, and then the index and middle fingers are slightly loosened to form a gap, so that the fertilized egg mixture flows out from the gap.

[0012] As a preferred technical solution of the present invention, the time to complete the entire process of steps S1-S4 is less than 3 minutes.

[0013] As a preferred embodiment of the present invention, the egg-bearing part includes a straight rod and multiple sets of threads, with the multiple sets of threads distributed vertically along the straight rod to form a columnar structure.

[0014] As a preferred technical solution of the present invention, the diameter of the formed columnar structure is 12-20cm, and the filament is made of a rigid material with a diameter of 0.15-0.35mm.

[0015] As a preferred technical solution of the present invention, the control mechanism includes a bracket and a traction assembly. The bracket is fixedly connected to the hatching pool. A crossbeam and a first power source are provided on the bracket. A shaft and a telescopic source are provided on the crossbeam. The first power source is used to drive the shaft to rotate. Multiple egg-bearing parts are rotatably connected to the shaft through movable components. The traction assembly can sequentially pull the egg-bearing parts that have completed the adhesion of fertilized eggs from a horizontal state to a vertical state. The telescopic source can drive the egg-bearing parts that have completed the adhesion of fertilized eggs to rotate through a rotary component.

[0016] As a preferred technical solution of the present invention, the rotary assembly includes a rack slidably connected to the crossbeam and a gear ring fixed to each straight rod. The rack is connected to the movable end of the telescopic source, and the rack and gear ring mesh when the bearing part is in a horizontal state.

[0017] As a preferred embodiment of the present invention, the movable component includes a bushing threaded on a straight rod, a support block disposed on the rod, and a frame disposed on a crossbeam. The bushing and the support block are hinged together, and an elastic element is disposed within the frame, the elastic element extending and connecting to the straight rod.

[0018] As a preferred technical solution of the present invention, there are multiple sets of traction components, each corresponding to an egg-bearing part. The traction component includes a second power source, a swivel wheel, and a pulley, all mounted on the hatching pool. The second power source is driven and connected to the swivel wheel. A rope is wound around the swivel wheel, and the rope passes around the pulley and connects to a corresponding straight rod.

[0019] Compared with the prior art, the beneficial effects of the present invention are: The present invention provides a highly efficient hatching method for fish adhesive fertilized eggs, in which multiple sets of filaments are distributed up and down along a straight rod to form a columnar structure. The columnar structure formed is three-dimensional and has good air permeability. It can support eggs in different areas, has a high egg carrying capacity, and prevents fertilized eggs from stacking and squeezing each other, effectively avoiding cross-infection.

[0020] The egg-bearing part is rotatably connected to the shaft by hinged bushing and support block. When a set of egg-bearing parts is in a horizontal state and has completed the adhesion of fertilized eggs, the corresponding second power source can rewind the rope by driving the pulley to rotate. The rope moves along the pulley and pulls the egg-bearing part from a horizontal state to a vertical state, so that the three-dimensional space on the egg-bearing part where the fertilized eggs are attached enters the water in the hatching tank for incubation. This allows the staff to move in a straight line to the next set of egg-bearing parts without obstruction. In other words, firstly, the fertilized egg mixture can flow quickly to the egg-bearing part, avoiding inactivation due to failure to enter the water in time when the eggs are attached, thus ensuring the survival rate of the fertilized eggs; secondly, the staff can move in one direction in the water and quickly move to the next set of egg-bearing parts, avoiding violent fluctuations in the water in the hatching tank caused by turning and moving too far, which would bring the fertilized eggs into the water down from the egg-bearing part.

[0021] The telescopic source's movable end can extend and retract, driving the rack to slide back and forth on the crossbeam. Through the meshing of the rack with the toothed ring on the straight rod, the egg-receiving part can be driven to rotate back and forth, allowing the flowing fertilized egg mixture to be fully distributed in the columnar three-dimensional structure formed by multiple sets of filaments distributed up and down along the straight rod. At the same time, when the egg-receiving part is rotating, the fertilized egg mixture flows along the filaments, which can prevent the fertilized eggs from piling up and squeezing each other, effectively ensuring the uniformity of the fertilized eggs' adhesion in the egg-receiving part, resulting in a high survival rate and a high successful hatching rate.

[0022] The second power source can continuously drive the shaft to rotate, so that the egg-bearing parts with larger deflection angles move to a horizontal state first. That is, the toothed ring on the straight rod can first abut against the rack and compress the elastic element to keep it in a horizontal state until all the egg-bearing parts move to a horizontal state, ensuring the consistency of control over multiple egg-bearing parts at the same time. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the incubation pool of the present invention;

[0025] Figure 3 This is a schematic diagram of the egg-bearing part structure of the present invention;

[0026] Figure 4 This is a schematic diagram showing the connection relationship between the traction component and the egg-bearing part of the present invention;

[0027] Figure 5 This is a schematic diagram showing the connection relationship between the egg-bearing part and the shaft of the present invention;

[0028] In the diagram: 100, Hatching pool; 110, Pipeline; 200, Control mechanism; 210, Bracket; 220, Traction assembly; 221, Second power source; 222, Ring wheel; 223, Pulley; 224, Rope; 230, Crossbeam; 240, First power source; 250, Shaft; 260, Telescopic source; 270, Egg-receiving part; 271, Straight rod; 272, Thread; 280, Movable assembly; 281, Bushing; 282, Support block; 283, Frame; 284, Elastic element; 290, Rotating assembly; 291, Rack; 292, Gear ring. Detailed Implementation

[0029] 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.

[0030] Example 1

[0031] Please see Figure 1-5 A highly efficient method for hatching fish adhesive fertilized eggs, specifically including the following steps:

[0032] S1. Mix the sticky eggs and sperm with a feather to form a fertilized egg, add 40 times the volume of 0.9% physiological saline, and mix with a feather to form a fertilized egg mixture.

[0033] S2. The egg-bearing part 270 is horizontally positioned in the hatching pool 100 by the control mechanism 200, so that the egg-bearing part 270 is 10-20cm away from the water surface. The hatching pool 100 is equipped with pipes 110 for water inlet and drainage. Liquid oxygen is used for oxygenation in the hatching pool 100. The water inlet pipe 110 is connected to a water storage tank, and the drainage pipe 110 is connected to a filter tank. The water storage tank contains tap water or groundwater that has been aerated for ≥3 days. The water storage tank is connected to the hatching pool 100 through the pipe 110, and the hatching pool 100 is connected to the filter tank through the pipe 110. The water level in the hatching pool 100 is higher than that in the filter tank, which facilitates the natural flow of water into the hatching pool 100.

[0034] S3. Then pour the fertilized egg mixture into the funnel, control the funnel to move back and forth and left and right, so that the fertilized egg mixture flows evenly on the egg receiving part 270, and rotate the egg receiving part 270 through the control mechanism 200 so that the egg receiving part 270 is covered with fertilized eggs in all positions.

[0035] S4. Then, the egg-bearing part 270 that adheres to the fertilized egg is vertically hung in the hatching pool 100 by the control mechanism 200.

[0036] Example 2

[0037] Please see Figure 1-5 A highly efficient method for hatching fish adhesive fertilized eggs, specifically including the following steps:

[0038] S1. Mix the sticky eggs and sperm with a feather to form a fertilized egg, add 20 times the volume of 0.65% physiological saline, and mix with a feather to form a fertilized egg mixture.

[0039] S2. The egg-bearing part 270 is horizontally positioned in the hatching pool 100 by the control mechanism 200, so that the egg-bearing part 270 is 10-20cm away from the water surface. The hatching pool 100 is equipped with pipes 110 for water inlet and drainage. Liquid oxygen is used for oxygenation in the hatching pool 100. The water inlet pipe 110 is connected to a water storage tank, and the drainage pipe 110 is connected to a filter tank. The water storage tank contains tap water or groundwater that has been aerated for ≥3 days. The water storage tank is connected to the hatching pool 100 through the pipe 110, and the hatching pool 100 is connected to the filter tank through the pipe 110. The water level in the hatching pool 100 is higher than that in the filter tank, which facilitates the natural flow of water into the hatching pool 100.

[0040] S3. Then pour the fertilized egg mixture into the funnel, hold the upper end of the funnel with your thumb, and block the lower end of the funnel opening with your index and middle fingers. Then slightly loosen your index and middle fingers to form a gap, allowing the fertilized egg mixture to flow out from the gap. Control the funnel to move back and forth and left and right, so that the fertilized egg mixture flows evenly on the egg receiving part 270. Rotate the egg receiving part 270 through the control mechanism 200 to make the egg receiving part 270 full of fertilized eggs.

[0041] S4. Then, the egg-bearing part 270 that adheres to the fertilized egg is vertically hung in the hatching pool 100 by the control mechanism 200.

[0042] The entire process of steps S1-S4 takes less than 3 minutes.

[0043] Example 3

[0044] Please see Figure 1-5 Based on Example 1 or Example 2, the egg-bearing part 270 includes a straight rod 271 and multiple sets of filaments 272. The multiple sets of filaments 272 are distributed up and down along the straight rod 271 to form a columnar structure with good air permeability. The columnar structure formed is three-dimensional and can bear eggs in different areas, with a high egg carrying capacity, and prevents fertilized eggs from stacking and squeezing each other, effectively avoiding cross-infection.

[0045] The control mechanism 200 includes a bracket 210 and a traction assembly 220. The bracket 210 is fixed to the hatching tank 100. A crossbeam 230 and a first power source 240 are provided on the bracket 210. A shaft 250 and a telescopic source 260 are provided on the crossbeam 230. The first power source 240 is used to drive the shaft 250 to rotate. Multiple egg-bearing parts 270 are rotatably connected to the shaft 250 through a movable assembly 280. The traction assembly 220 can sequentially pull the egg-bearing parts 270 that have completed the adhesion of fertilized eggs from a horizontal state to a vertical state. The telescopic source 260 can drive the egg-bearing parts 270 that have completed the adhesion of fertilized eggs to rotate through a rotary assembly 290. The first power source 240 is preferably a servo motor. By driving the shaft 250 to rotate, it can drive multiple egg-bearing parts 270 to rotate to a horizontal state, and can adhere fertilized eggs to each egg-bearing part 270.

[0046] The active component 280 includes a bushing 281 passing through a straight rod 271, a support block 282 disposed on a shaft 250, and a frame 283 disposed on a crossbeam 230. The bushing 281 and the support block 282 are hinged together. An elastic element 284 is disposed inside the frame 283, and the elastic element 284 extends and connects to the straight rod 271. There are multiple sets of traction components 220, each corresponding to an egg-receiving part 270. The traction component 220 includes a second power source 221 disposed on the hatching pool 100. A ring wheel 222 and a pulley 223 are connected to a second power source 221. A rope 224 is wound around the ring wheel 222. The rope 224 passes around the pulley 223 and connects to the corresponding straight rod 271. The elastic element 284 is preferably a spring. The second power source 221 is preferably a micro servo motor. The bearing part 270 is rotatably connected to the shaft 250 by the hinge of the bushing 281 and the support block 282. The elastic element 284 acts as a support for the shaft 250 within the frame 283. The elastic support allows the egg-bearing section 270 to be in a horizontal position after the fertilized eggs have adhered. The corresponding second power source 221 then drives the rotating wheel 222 to retract the rope 224. The rope 224 moves along the pulley 223, pulling the egg-bearing section 270 from a horizontal to a vertical position. This allows the three-dimensional space where the fertilized eggs adhere to the egg-bearing section 270 to enter the water in the hatching pool 100 for incubation. This allows workers to move in a straight line to the next egg-bearing section 270 without obstruction. Specifically, this ensures that the fertilized egg mixture can quickly flow to the egg-bearing section 270, preventing inactivation due to failure to enter the water in time after adhesion, thus guaranteeing the survival rate of the fertilized eggs. Furthermore, it allows workers to move in one direction in the water, quickly reaching the next egg-bearing section 270, avoiding violent fluctuations in the water within the hatching pool 100 that could pull the fertilized eggs off the egg-bearing section 270.

[0047] The rotating assembly 290 includes a rack 291 slidably connected to the crossbeam 230 and a gear ring 292 fixed to each straight rod 271. The rack 291 is connected to the movable end of the telescopic source 260. When the egg-bearing part 270 is in a horizontal state, the rack 291 and the gear ring 292 mesh. When driving multiple egg-bearing parts 270 from a horizontal state to a vertical state, multiple second power sources 221 drive the ring body to loosen the rope body 224, thereby driving the shaft 250 to rotate through the first power source 240, which in turn drives the multiple egg-bearing parts 270 to move. However, due to the potential for elasticity issues in each set of elastic elements 284 after prolonged use... The varying degrees of decline in sexual performance result in different initial deflection angles of each egg-bearing portion 270 relative to the straight rod 271 after the second power source 221 relaxes the rope 224. Therefore, the second power source 221 can continuously drive the shaft 250 to rotate, causing the egg-bearing portions 270 with larger deflection angles to move to a horizontal state first. That is, the toothed ring 292 on the straight rod 271 can first abut against the rack 291 and compress the elastic element 284 to maintain a horizontal state until all egg-bearing portions 270 have moved to a horizontal state, ensuring consistent control of multiple egg-bearing portions 270 simultaneously. The telescopic source 260 is preferably a hydraulic cylinder, which, through the funnel... When the fertilized egg mixture flows onto the egg-receiving part 270 for adhesion, the movable end of the telescopic source 260 extends and retracts, driving the rack 291 to slide back and forth on the crossbeam 230. Through the engagement of the rack 291 with the toothed ring 292 on the straight rod 271, the egg-receiving part 270 can rotate back and forth. This allows the flowing fertilized egg mixture to be distributed throughout the columnar three-dimensional structure formed by multiple sets of filaments 272 distributed vertically along the straight rod 271. Simultaneously, while the egg-receiving part 270 is rotating, the flow of the fertilized egg mixture along the filaments 272 prevents the fertilized eggs from piling up and being squeezed, effectively ensuring the uniformity of adhesion of the fertilized eggs on the egg-receiving part 270. The eggs have a high survival rate and a high hatching success rate. The egg-receiving part 270 stops rotating at its initial position, preventing the rope 224 from twisting and extending its service life. After one egg-receiving part 270 has finished attaching the fertilized egg, the telescopic source 260 will drive the rack 291 to move forward a certain distance. The bracket 210 has a through hole for the rack 291 to pass through. The toothed ring 292 on the egg-receiving part 270 no longer meshes with the rack 291, allowing the egg-receiving part 270 to smoothly change from a horizontal state to a vertical state. After all the egg-receiving parts 270 have entered the water, the telescopic source 260 drives the rack 291 to reset.

[0048] Example 4

[0049] Please see Figure 1-5 Based on Example 3, the columnar structure formed by multiple sets of filaments 272 distributed up and down along the straight rod 271 has a diameter of 12-20cm. The filaments 272 are made of rigid material and have a diameter of 0.15-0.35mm.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for efficient hatching of fish adhesive fertilized eggs, characterized in that, Specifically, the following steps are included: S1. Mix the sticky eggs and sperm with a feather to form a fertilized egg, add 20-40 times the volume of 0.65%-0.9% physiological saline, and mix with a feather to form a fertilized egg mixture; S2. The egg-collecting part is horizontally positioned in the hatching tank by the control mechanism, so that the egg-collecting part is 10-20cm above the water surface; S3. Then pour the fertilized egg mixture into the funnel, control the funnel to move back and forth and left and right, so that the fertilized egg mixture flows evenly on the egg-receiving part, and rotate the egg-receiving part by controlling the mechanism to make the egg-receiving part full of fertilized eggs. S4. Then, the egg-bearing part that attaches the fertilized eggs is vertically hung in the hatching tank by the control mechanism. The egg-receiving part includes a straight rod and multiple sets of silk strips, with the multiple sets of silk strips vertically distributed along the straight rod to form a columnar structure; The control mechanism includes a bracket and a traction assembly. The bracket is fixed to the hatching pool. A crossbeam and a first power source are provided on the bracket. A shaft and a telescopic source are provided on the crossbeam. The first power source is used to drive the shaft to rotate. Multiple egg-bearing parts are rotatably connected to the shaft through movable components. The traction assembly can sequentially pull the egg-bearing parts with fertilized eggs attached from a horizontal state to a vertical state. The telescopic source can drive the egg-bearing parts with fertilized eggs attached to rotate through a rotary component. The rotary assembly includes a rack that slides on the crossbeam and a gear ring that is fixed to each straight rod. The rack is connected to the movable end of the telescopic source. When the bearing part is in a horizontal state, the rack and the gear ring mesh. The movable component includes a bushing that passes through a straight rod, a support block disposed on the rod, and a frame disposed on a crossbeam. The bushing and the support block are hinged together, and an elastic element is disposed inside the frame, the elastic element extending and connecting to the straight rod. There are multiple sets of traction components, each corresponding to an egg-bearing part. Each traction component includes a second power source, a swivel wheel, and a pulley, all mounted on the hatching pool. The second power source is connected to the swivel wheel for driving. A rope is wound around the swivel wheel and passes around the pulley to connect to a corresponding straight rod.

2. The method for efficient hatching of fish adhesive fertilized eggs according to claim 1, characterized in that, The hatching pool is equipped with pipes for water inlet and drainage, and liquid oxygen is used for oxygenation.

3. The method for efficient hatching of fish adhesive fertilized eggs according to claim 1, characterized in that, When the fertilized egg mixture flows from the funnel to the egg-receiving part, hold the upper end of the funnel with your thumb, and block the lower end of the funnel opening with your index and middle fingers. Then, slightly loosen your index and middle fingers to form a gap, allowing the fertilized egg mixture to flow out from the gap.

4. A method for efficient hatching of fish adhesive fertilized eggs according to claim 3, characterized in that, The entire process of completing steps S1-S4 takes less than 3 minutes.

5. The method for efficient hatching of fish adhesive fertilized eggs according to claim 1, characterized in that, The resulting columnar structure has a diameter of 12-20cm, and the filaments are made of rigid material with a diameter of 0.15-0.35mm.

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