CN114667958A - A kind of artificial seedling raising facility and seedling raising method of Chinese tiger head crab - Google Patents

Abstract

The invention discloses an artificial seedling-raising facility and a seedling-raising method of Chinese tiger crab, relates to the technical field of Chinese tiger-head crab augmentation and cultivation, and solves the problem that the excrement produced by Chinese tiger-head crab in the process of augmentation and culture will be mixed with the substrate produced by seedling raising. , pollute the breeding area, it is difficult to remove, and when changing the water, it is easy to cause the Chinese tiger head crab to escape and cause economic losses. A Chinese tiger head crab artificial seedling raising facility and seedling raising method, comprising a seedling raising pool, a seedling raising area is arranged inside the seedling raising area, a feeding area is arranged on one side of the seedling raising area, and a middle of the seedling raising area and the feeding area is arranged There is a partition mechanism, and the partition mechanism includes a partition bottom plate. The invention can quickly clean the breeding area of Chinese tiger head crab by providing a drainage and slag cleaning mechanism, a partition mechanism and a seedling area cleaning mechanism, so as to ensure the cleanness of the culture water body, and avoid the Chinese tiger head crab from escaping when changing the water. Economic losses.

Description

A kind of artificial seedling raising facility and seedling raising method of Chinese tiger head crab

technical field

The invention relates to the field of Chinese tiger head crab breeding, in particular to an artificial seedling raising facility and a seedling raising method of Chinese tiger head crab.

Background technique

With the rapid development of society and economy, the Chinese tiger crab is a crustacean of the family Tiger crab family and the genus Tiger crab; it has a peculiar shape, bright color, and a round head carapace, indicating that there are granular uplifts that are particularly prominent in the front and middle parts. ; There is a dark purple round spot in each gill area, such as tiger's eye shape; the forehead is narrow, with 3 sharp teeth, the middle part is larger and the protruding length is slightly larger than the width; the division is obvious, and the wart-like protrusions are symmetrically distributed in the center of each area; 3 sharp teeth, the middle one is larger, with 2 verrucous protrusions and a strong spine on the anterior margin, two strong spines on the posterior margin, and the posterior margin is blunt; chelipeds are asymmetrical, large on the left and small on the right; the fourth pair The feet are paddle-shaped, and the knuckles are flat and oval; the abdomen is short and triangular in males, and oval in females.

However, the excrement produced by the existing Chinese tiger head crab during the breeding process will be mixed with the substrate produced by the seedlings, pollute the breeding area and be difficult to remove, and it is easy to cause the Chinese tiger head crab to escape and cause economic losses when the water is changed; Therefore, to meet the existing needs, we propose a Chinese tiger head crab artificial breeding facility and method.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a kind of Chinese tiger head crab artificial seedling raising facility and seedling raising method, to solve the problem that the existing Chinese tiger head crab proposed in the above-mentioned background technology will be mixed with the substrate used for raising seedlings. , pollute the breeding area, it is difficult to remove, and when changing the water, it is easy to cause the Chinese tiger head crab to escape and cause economic losses and other problems.

In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: a kind of artificial seedling facility of Chinese tiger head crab, comprising a seedling pond, the inside of the seedling pond is provided with a seedling area, and one side of the seedling area is provided with a feeding area, so the A partition mechanism is arranged in the middle of the seedling raising area and the feeding area. The partition mechanism includes a partition bottom plate. The surface of the partition bottom plate is provided with a receiving groove. The inner side of the receiving groove is movably provided with a lifting baffle. The upper surfaces of both ends are provided with connecting rods, one side of the connecting rods is provided with an adjustment sleeve, the bottom end of the adjustment sleeve is inserted from the upper surface of the seedling pond into the inside of the seedling pond, and the bottom end is provided with a A lifting ring, the middle of the lifting ring is provided with an adjusting screw, the bottom end of the adjusting screw is inserted into the seedling pond, and the outer surface of the bottom end is provided with a screw gear, and one side of the screw gear is provided with a meshing The adjusting gear is provided with an adjusting motor below the adjusting gear;

The inside of the feeding area is provided with a drainage and slag-removing mechanism, and the drainage and slag-removing mechanism includes a bottom plate, two symmetrically distributed guide bars are arranged on the surface of the bottom plate, an electromagnet is arranged inside the bottom plate, and the bottom plate is provided with an electromagnet. A permanent magnet is movably arranged above the electromagnet, a lifting strip-shaped plate is arranged above the permanent magnet, and elastic airbags are inlaid on both sides of the lifting strip-shaped plate. A blocking spring is arranged in the middle of the interior, the lifting strip-shaped plate is movably clamped inside the bottom plate, and a drainage groove is arranged on both sides of the lifting strip-shaped plate and the middle of the bottom plate, and a communication groove is arranged below the drainage groove, and the communication The water tank runs through the bottom of the nursery pond;

The upper surface of the nursery pond is provided with two symmetrical guide chutes, the top of the nursery area is provided with a clearing mechanism for the nursery area, the clearing mechanism for the nursery area includes a support top plate, and a lifting plate is provided below the support top plate A telescopic link is arranged in the middle of the lifting plate and the supporting top plate, an electric telescopic rod is arranged inside the supporting top plate, one end of the electric telescopic rod is provided with a sliding base, and the middle of the sliding base is movably provided with a coil A take-up roller, the outside of the take-up roller is wound with a take-up rope, one end of the take-up rope is fixed on the outer surface of the take-up roller, and the other end penetrates through the bottom surface of the support top plate and is connected to the surface of the lift plate, the roll A drive shaft is arranged through the middle of the retracting roller, one end of the drive shaft penetrates through the sliding base and the end is provided with a retracting motor;

A water suction pipe is arranged above the support top plate, the bottom end of the water suction pipe penetrates the support top plate and the lifting plate located below the support top plate, and the bottom end of the water suction pipe is provided with an absorption plate, and the lower part of the lifting plate is provided with an absorption plate. An air outlet plate is provided, the inner side of the air outlet plate is provided with an air flow guide strip, and the surface of the air outlet plate is provided with an air blowing pipe, the upper end of the air blowing pipe is connected to the external air pump through the lifting plate, and the two ends of the supporting top plate The bottom is provided with a supporting rod, the top of the supporting rod is attached to the bottom surface of the supporting top plate, and the outer side is provided with a straight connecting steel sheet, the inner side of the supporting rod is provided with an L-shaped connecting steel sheet, and the supporting rod is connected to the supporting rod. The top plate is connected by straight connecting steel sheets and L-shaped connecting steel sheets;

The bottom end of the support rod is inserted into the inner side of the guide chute, and the end part is provided with a lead screw. Both ends of the lead screw are inserted into the nursery tank and the outer surface of one end is provided with a synchronous worm gear. The synchronous worm gear The lower part of the worm gear is provided with a driving worm that meshes with it, the middle outer surface of the driving worm is provided with a worm gear, the lower part of the worm gear is provided with a guide gear that meshes with it, and one end of the guide gear is provided with a guide motor.

Preferably, the outer side of the electromagnet is covered with a waterproof cover, and the waterproof cover is subjected to waterproof treatment.

Preferably, the outer surface of the lead screw and the inner surface of the bottom end of the support rod penetrated by the lead screw are provided with threads with the same rotation direction, the lead screw and the support rod are driven by threads, and the inner surface of the lift ring is provided with There is a thread with the same rotation direction as the outer surface of the adjusting screw, and the lifting ring and the adjusting screw are driven by the thread.

Preferably, a connecting piece is provided above the adjusting sleeve and the connecting rod, and both ends of the connecting piece are respectively attached to the top end surfaces of the adjusting sleeve and the connecting rod, and are connected with the adjusting sleeve and the connecting rod through screws. connect.

Preferably, the upper surfaces of both ends of the air outlet plate are provided with connecting ropes, and the two ends of the connecting ropes are fixedly connected to the bottom surface of the lifting plate.

Preferably, there is a certain height difference between the air outlet plate and the absorption plate, and the height difference is greater than the height dimension of the cultured parent crab.

Preferably, the bottom surface of the sliding base is provided with a bar-shaped groove running through, a guide ring is provided below the bar-shaped groove, and the bottom end of the winding rope passes through the middle of the guide ring.

Compared with the prior art, the beneficial effect of the seedling raising device of the present invention is: start the winding motor to lower the lifting plate suspended by the winding rope downward and ensure that the bottom surface of the air outlet plate is in contact with the surface of the substrate, and then start The air pump connected by the air blowing pipe and the suction pump connected by the water suction pipe send air to the inside of the air outlet plate through the air pump to blow up the excrement and impurities on the surface of the substrate. The impurities are drawn out to the outside, and the guide motor drives the two guide screws to rotate, and the support rod drives the support top plate to move along the direction of the guide chute, so that the air outlet plate and the absorption plate slide inside the nursery area, which can comprehensively control the seedlings. The substrate laid in the area is cleaned to avoid bacterial growth.

A method for raising seedlings of Chinese tiger head crab artificial seedling raising facilities, the method for raising seedlings comprises the following steps:

(A) After the construction of the nursery pond is completed, use bricks to build a partition bottom plate inside the nursery pond, and then insert the lifting partition on the inside of the receiving groove on the surface of the partition bottom plate, and divide the area inside the nursery pond into nursery areas. And the feeding area, and then lay the substrate required for breeding inside the separated nursery area, and the substrate is natural sea area fine sand (the breeding fine sand for breeding parent crabs needs to be washed 3-5 times by sand filter and sea water, and the larvae < The flea larvae are divided into three stages (Z1-Z3). The metamorphosis to macrophthalmia begins to spread and cultivate fine sand after 2 days. The cultivation of fine sand needs to be filtered with a 40-mesh screen and then washed by sand filter and seawater for 6-8 times.) After the substrate is laid, add seawater to the inside of the nursery pond, and ensure that the salinity of the seawater is between 25-27;

(B) Finally, put the parent crabs or larvae to be cultivated on the substrate surface laid by 02. The stocking density of parent crabs is 2-3 per square meter, the light intensity is 500Lux～1000Lux, and the water temperature is 16℃～28℃. The water depth is 0.8m~1.0m, continuous micro-aeration, feeding at night, the bait is mainly low-value fresh shellfish, supplemented by miscellaneous fish and shrimp; the feeding amount is 5%~10% of the weight of the parent crab, which is appropriate according to the feeding situation Adjustment, change the water once a day, and change the amount of water 80% to 100%. Before adding water, clean the dirt and residual bait at the bottom of the pool, and pick out injured and dead parent crabs;

(C) The breeding density of larvae is 15,000 to 20,000 per cubic meter. For individual breeding pools with a high density of larvae, the breeding density can be reduced by siphoning; the aeration can also be stopped for min~min, and the phototaxis of the larvae can be used to collect the collection by sifting through a silk mesh bag. The upper larvae should be placed in other larvae cultivation tanks. In the first cultivation tank, the larvae hatched during the same period should be cultivated. During cultivation, the water temperature should be kept at 21 to 28 degrees, the salinity of 25 to 27, the pH value of 7.8 to 8.2, and the dissolved oxygen ≥ 5mg/L. Ammonia nitrogen ≤0.1mg/L, hydrogen sulfide <<0.1mg/L, change the water once a day, and observe the larvae's stomach fullness, vitality, body surface dirt, residual bait, etc. at least 3 times a day, and when problems occur take timely response measures;

(D) When cleaning the substrate filled in the nursery area, firstly, the larvae are attracted to the nursery area (3) by using the larval phototaxis in the larval stage, and the larvae are moved to the nursery area with a 40-80 mesh sieve bag in the later larval stage. The nursery area (3), the nursery area (3) and the nursery area (2) are partitioned to avoid damage to the larvae when cleaning the substrate. Turn on the power of the electric telescopic rod (617) and the winding motor (622), at this time the winding motor (622) will start and drive the driving shaft (620) to rotate, so that the driving shaft (620) drives the winding roller (619) ) is rotated so that the take-up rope (621) rolled up by the take-up roller (619) becomes loose, and the lifting plate (614) previously suspended by the take-up rope (621) is lowered down, while the electric telescopic rod (617) Drive the sliding base (618) to move, so that the winding rope (621) is always in the same position when it is released, and will not tilt or move until the air outlet plate (611) contacts the surface of the substrate, at which point the winding is stopped. motor (622) and electric telescopic rod (617);

(E) Next, start the air pump connected by the air blowing pipe and the suction pump connected by the water pumping pipe. The air pump sends the air flow to the air outlet plate through the air blowing pipe, so that the air flow is guided by the air flow guide strip and blown on the surface of the substrate obliquely, and the air will be located at the bottom. At the same time, the suction pump sucks the waste and impurities blown by the air blowing from the air outlet plate into the suction pipe through the absorption plate and discharges it to the outside world;

(F) When cleaning the excrement and impurities on the surface of the substrate, the guide motor can be activated at the same time, so that the guide motor drives the two synchronous worm gears to rotate by driving the guide gear and the worm gear to rotate, so that the guide screw rotates around the axis of the synchronous worm gear. , Through the threaded transmission between the guide screw and the support rod, the support rod moves along the guide chute, so that the two support rods drive the support top plate and the lifting plate to move as a whole, so that the air outlet plate moves against the bottom surface and moves the All substrate surfaces in the nursery area are cleaned;

(G) When it is necessary to replace the seawater inside the nursery pond, use a 40-80 mesh sieve net to pick up the larvae according to the size of the larvae, turn on the power supply of the adjusting motor and start it, so that the adjusting motor drives the adjusting gear and the screw gear rotates to drive the adjusting screw Synchronous rotation, at this time, the adjusting screw is driven by the thread between the lifting ring, so that the lifting ring moves upward along the axis of the adjusting screw, so that the lifting ring drives the adjusting sleeve to protrude from the nursery tank, and makes the adjusting sleeve drive the connection. The rod and the elevating partition move synchronously, so that the elevating partition protrudes from the partition bottom plate, forming a partition in the middle of the nursery area and the feeding area. entering the eating area during a water change;

(H) After the lifting baffle is raised, turn on the power of the electromagnet, so that the electromagnet magnetically adsorbs the permanent magnet, so that the permanent magnet moves down close to the electromagnet, and makes the permanent magnet drive the lifting strip to the inside of the bottom plate It shrinks so that the upper end opening of the drainage groove originally blocked by the lifting strip plate is opened. At this time, the seawater located in the nursery tank will be discharged outward along the opened drainage groove and the connecting water groove, and pass through the two holes located on the surface of the bottom plate. The diversion strip makes the water flow obliquely on the surface of the diversion strip, which can wash the food residues and larval excrement on the surface of the diversion strip, and ensure that the inside of the feeding area is cleaned while changing the water.

Preferably, the area of the nursery area occupies four-fifths of the area of the nursery pond, and the area of the feeding area occupies one-fifth of the area of the nursery pond.

Preferably, the thickness of the substrate is 10cm-15cm, and the height of the partition bottom plate is greater than 15cm.

Compared with the prior art, the beneficial effects of the seedling raising method of the present invention are:

The invention divides the breeding area into two functional areas: the nursery area and the feeding area during breeding, so as to ensure that the residue generated during feeding and the feces produced by the excretion of the seedlings during the feeding process stay in the feeding area in large quantities, and will not be mixed with the nursery. The substrate laid in the area is mixed, which is convenient for cleaning, and will not cause a lot of loss of the substrate during cleaning, and at the same time, it can ensure that the seedlings will not escape with the water flow when the water is changed.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is the structural representation of the cleaning mechanism in the nursery area of the present invention;

Fig. 3 is the structural representation of the partition mechanism of the present invention;

4 is an enlarged view of the structure at the place A in FIG. 3 of the present invention;

5 is a schematic structural diagram of the drainage and slag cleaning mechanism of the present invention;

Fig. 6 is the partial structure schematic diagram of the cleaning mechanism of the nursery area of the present invention;

Fig. 7 is the partial structure schematic diagram of the supporting top plate of the present invention;

FIG. 8 is an enlarged view of the structure at B in FIG. 7 of the present invention.

In the figure: 1. Seedling pond; 2. Seedling area; 3. Feeding area; 4. Drainage and slag removal mechanism; 401, Bottom plate; Magnet; 406, Electromagnet; 407, Drainage slot; 408, Connecting water slot; 409, Blocking spring; 410, Waterproof cover; 5, Partition mechanism; 501, Partition bottom plate; 502, Storage slot; 503, Lifting partition; 504, Connecting rod; 505, adjusting sleeve; 506, adjusting screw; 507, lifting ring; 508, screw gear; 509, adjusting gear; 510, adjusting motor; 6, cleaning mechanism in nursery area; 601, guide motor; 602, guide gear ; 603, worm gear; 604, drive worm; 605, synchronous worm gear; 606, lead screw; 607, support rod; 608, support top plate; 609, suction pipe; 610, absorption plate; 611, air outlet plate; 612, blowing pipe ; 613, connecting rope; 614, lifting plate; 615, air guide strip; 616, telescopic link; 617, electric telescopic rod; 618, sliding base; 619, winding roller; 620, driving shaft; 621, winding rope ; 622, winding motor; 623, guide ring; 7, guide chute; 8, L-shaped connecting steel sheet; 9, straight connecting steel sheet.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

The adjusting motor 510 (model ncv28-400-60C), guide motor 601 (model 130ST-M15025) and retracting motor 622 (model 5IK60RGN-CF) mentioned in the present invention can be purchased from the market or obtained by private customization .

Please refer to FIG. 1 to FIG. 8 , an embodiment provided by the present invention: an artificial seedling-raising facility for Chinese tiger head crab, including a seedling-raising pool 1, a seedling-raising area 2 is arranged inside the seedling-raising pool 1, and a side of the seedling-raising area 2 is arranged There is an eating area 3, a partition mechanism 5 is arranged in the middle of the nursery area 2 and the eating area 3, and the partition mechanism 5 includes a partition bottom plate 501. The surface of the partition bottom plate 501 is provided with a receiving groove 502, and the inner side of the receiving groove 502 is movably provided with a lifting partition. 503, the upper surface of both ends of the lifting baffle 503 is provided with a connecting rod 504, one side of the connecting rod 504 is provided with an adjustment sleeve 505, and the bottom end of the adjustment sleeve 505 is inserted from the upper surface of the seedling pond 1 into the seedling raising. A lifting ring 507 is arranged inside and at the bottom of the pool 1, and an adjusting screw 506 is arranged through the middle of the lifting ring 507. The bottom end of the adjusting screw 506 is inserted into the seedling pool 1 and the outer surface of the bottom end is provided with a screw gear 508. The screw gear One side of 508 is provided with an adjusting gear 509 meshing with it, and an adjusting motor 510 is provided below the adjusting gear 509;

The inside of the feeding area 3 is provided with a drainage and slag cleaning mechanism 4. The drainage and slag cleaning mechanism 4 includes a bottom plate 401. The surface of the bottom plate 401 is provided with two symmetrically distributed guide strips 402. The interior of the bottom plate 401 is provided with an electromagnet 406. The electromagnet A permanent magnet 405 is movably arranged above the 406, a lifting strip plate 403 is arranged above the permanent magnet 405, elastic airbags 404 are embedded on both sides of the lifting strip plate 403, and the bottom surface of the lifting strip plate 403 and the bottom plate 401 A blocking spring 409 is arranged in the middle of the interior, the lifting strip plate 403 is movably clamped inside the bottom plate 401, and the two sides of the lifting strip plate 403 and the middle of the bottom plate 401 are provided with drainage grooves 407, and a communication groove 408 is provided below the drainage groove 407. , the communication tank 408 runs through the bottom end of the nursery pond 1;

The upper surface of the nursery pond 1 is provided with two symmetrical guide chutes 7, the top of the nursery area 2 is provided with a nursery area cleaning mechanism 6, and the nursery area clearing mechanism 6 includes a support top plate 608, and the bottom of the support top plate 608 is provided with a lift plate 614 A telescopic link 616 is arranged in the middle of the lifting plate 614 and the supporting top plate 608, an electric telescopic rod 617 is arranged inside the supporting top plate 608, one end of the electric telescopic rod 617 is provided with a sliding base 618, and the middle of the sliding base 618 is movably provided with a roll The retracting roller 619 is wound with a retracting rope 621 on the outside of the retracting roller 619. One end of the retracting rope 621 is fixed on the outer surface of the retracting roller 619 and the other end penetrates the bottom surface of the support top plate 608 and is connected to the surface of the lifting plate 614. A driving shaft 620 is arranged through the middle of the winding roller 619, one end of the driving shaft 620 penetrates through the sliding base 618 and a winding motor 622 is arranged at the end;

A suction pipe 609 is arranged above the support top plate 608. The bottom end of the suction pipe 609 penetrates through the support top plate 608 and the lift plate 614 located below the support top plate 608. The bottom end of the suction pipe 609 is provided with an absorption plate 610. An air outlet plate 611 is arranged below, an air flow guide strip 615 is arranged on the inner side of the air outlet plate 611, and an air blow pipe 612 is arranged on the surface of the air outlet plate 611. Support rods 607 are provided below the ends. The top of the support rods 607 is attached to the bottom surface of the support top plate 608 and the outer side is provided with a straight connecting steel sheet 9. The inner side of the support rod 607 is provided with an L-shaped connecting steel sheet 8. The support rod 607 It is connected with the supporting top plate 608 through the straight connecting steel sheet 9 and the L-shaped connecting steel sheet 8;

The bottom end of the support rod 607 is inserted into the inner side of the guide chute 7 and the end is provided with a lead screw 606. Both ends of the lead screw 606 are inserted into the nursery tank 1 and the outer surface of one end is provided with a synchronous worm gear 605. The synchronous worm gear The lower part of 605 is provided with a driving worm 604 that meshes with it, the middle outer surface of the driving worm 604 is provided with a worm gear 603, the lower part of the worm gear 603 is provided with a guide gear 602 that meshes with it, and one end of the guide gear 602 is provided with a guide motor 601.

Further, the outer side of the electromagnet 406 is covered with a waterproof cover 410, and the waterproof cover 410 is treated with waterproofing to ensure that the water flowing into the bottom plate 401 will not contact the electromagnet 406, so as to prevent the electromagnet 406 from being damaged due to short circuit.

Further, the outer surface of the lead screw 606 and the inner surface of the bottom end of the support rod 607 penetrated by the lead screw 606 are provided with threads with the same rotation direction, the lead screw 606 and the support rod 607 are driven by threads, and the inner surface of the lift ring 507 The same thread as the outer surface of the adjusting screw 506, the lifting ring 507 and the adjusting screw 506 are driven by the screw thread, and the screw driving makes the adjusting screw 506 and the lead screw 606 rotate, and can drive the lifting ring 507 and the support rod 607 to adjust along the way respectively. The axes of the screw 506 and the lead screw 606 move.

Further, a connecting piece is provided above the adjusting sleeve 505 and the connecting rod 504, and both ends of the connecting piece are respectively fitted with the top end surfaces of the adjusting sleeve 505 and the connecting rod 504 and pass through both the adjusting sleeve 505 and the connecting rod 504. The screw connection, the connecting piece enables the adjusting sleeve 505 and the connecting rod 504 to move synchronously, and ensures that the lifting ring 507 can only drive the adjusting sleeve 505 to move up and down when the adjusting screw 506 rotates, while the lifting ring 507 and the adjusting sleeve 505 cannot rotate.

Further, the upper surfaces of both ends of the air outlet plate 611 are provided with connecting ropes 613, the two ends of the connecting rope 613 are fixedly connected with the bottom surface of the lifting plate 614, and the connecting ropes 613 hang and support the air outlet plate 611 to ensure that the air outlet plate 611 will not fall off fall and reduce the bearing pressure of the blowing pipe 612 .

Further, there is a certain height difference between the air outlet plate 611 and the absorption plate 610, and the height difference is larger than the height of the breeding crab, so as to ensure that the absorption plate 610 will not cause damage to the cultured crab during the process of cleaning the substrate. .

Further, the bottom surface of the sliding base 618 is provided with a bar-shaped groove running through, and a guide ring 623 is provided below the bar-shaped groove. When the sliding base 618 is opened and the sliding base 618 moves with the electric telescopic rod 617 , the winding rope 621 is always kept vertically downward and at the same position.

A method for raising seedlings of Chinese tiger head crab artificial seedling raising facilities, the method for raising seedlings comprises the following steps:

(A) after the construction of the nursery pond 1 is completed, use bricks to form a partition bottom plate 501 inside the nursery tank 1, and then insert the lifting partition plate 503 on the inside of the receiving groove 502 on the surface of the partition bottom plate 501, and the nursery pond 1 The internal area is divided into nursery area 2 and feeding area 3, and then the substrate required for breeding is laid in the separated nursery area 2 area, and the substrate is natural sea area fine sand (fine sand for breeding parent crabs needs to be filtered by sand. The larvae are washed with sea water 3-5 times, and the larvae are divided into three stages (Z1-Z3), and when the metamorphosis is macrophthalmia, the fine sand is laid and cultivated in 2 days. Filter seawater and wash 6-8 times), add seawater to the inside of the nursery pond 1 after the substrate is laid, and ensure that the salinity of the seawater is between 25-27;

(B) Finally, put the parent crabs or larvae to be cultivated into the substrate surface laid in the nursery area 2. The stocking density of parent crabs is 2-3 per square meter, the light intensity is 500Lux～1000Lux, and the water temperature is 16℃～28℃ water depth of 0.8m-1.0m, continuous micro-aeration, feeding at night, the bait is mainly low-value fresh shellfish, supplemented by trash fish and shrimp; the feeding amount is 5%-10% of the weight of the parent crab, depending on the feeding Adjust the situation appropriately, change the water once a day, and change the amount of water 80% to 100%. Before adding water, clean the dirt and residual bait at the bottom of the pool, and pick out injured and dead parent crabs;

(C) The breeding density of larvae is 15,000 to 20,000 per cubic meter. For individual breeding pools with a high density of larvae, siphoning can be used to reduce the breeding density; it is also possible to stop aeration for 3 min to 5 min, and use the phototaxis of larvae. The upper larvae should be placed in other larvae cultivation tanks. In the first cultivation tank, the larvae hatched during the same period should be cultivated. During cultivation, the water temperature should be kept at 21 to 28 degrees, the salinity of 25 to 27, the pH value of 7.8 to 8.2, and the dissolved oxygen ≥ 5mg/L. Ammonia nitrogen ≤0.1mg/L, hydrogen sulfide <<0.1mg/L, change the water once a day, and observe the larvae's stomach fullness, vitality, body surface dirt, residual bait, etc. at least 3 times a day, and when problems occur take timely response measures;

(D) When cleaning the substrate filled in the nursery area 2, firstly, the larvae are attracted to the nursery area (3) by using the larval phototaxis in the larval stage, and the larvae are moved with a 40-80 mesh sieve mesh bag in the later larval stage. To the nursery area (3), the nursery area (3) and the nursery area (2) are separated to avoid damage to the larvae when cleaning the substrate; connect the power of the electric telescopic rod 617 and the winding motor 622, and the winding motor 622 It will start and drive the drive shaft 620 to rotate, so that the drive shaft 620 drives the take-up roller 619 to rotate, so that the take-up rope 621 rolled up by the take-up roller 619 is loosened, and the lifting plate 614 that was previously suspended by the take-up rope 621 will be loosened. Put down, at the same time, the electric telescopic rod 617 drives the sliding base 618 to move, so that the winding rope 621 is always in the same position when it is released and will not tilt or move until the air outlet plate 611 is in contact with the bottom surface. Rewinding motor 622 and electric telescopic rod 617;

(E) E Next, start the air pump connected to the air blowing pipe 612 and the suction pump connected to the water suction pipe 609, and the air pump sends the air flow into the air outlet plate 611 through the air blowing pipe 612, so that the air flow is blown obliquely at the bottom after being guided by the air flow guide bar 615. At the same time, through the absorption plate 610, the suction pump will suck the waste and impurities blown up by the air flow from the air outlet plate 611 into the suction pipe 609 and carry out the operation to the outside. discharge;

(F) When cleaning the excrement and impurities on the bottom surface, the guide motor 601 can be activated at the same time, so that the guide motor 601 drives the guide gear 602 and the worm gear 603 to rotate, so that the driving worm 604 drives the two synchronous worm gears 605 to rotate, so that the guide screw 606 rotates around the axis of the synchronous worm gear 605, and through the thread transmission between the lead screw 606 and the support rod 607, the support rod 607 moves along the guide chute 7, so that the two support rods 607 drive the support top plate 608 and the lift plate 614 Move as a whole, so that the air outlet plate 611 moves against the substrate surface, and cleans all the substrate surfaces in the nursery area 2;

(G) When it is necessary to replace the seawater inside the nursery pond 1, firstly, according to the size of the larvae, use a 40-80 mesh sieve mesh to receive the larvae, turn on the power supply of the regulating motor 510 and start it, so that the regulating motor 510 drives the regulating gear 509 and the screw The rotation of the gear 508 drives the adjusting screw 506 to rotate synchronously. At this time, the adjusting screw 506 is driven by the thread between the lifting ring 507, so that the lifting ring 507 moves upward along the axis of the adjusting screw 506, so that the lifting ring 507 drives the adjusting sleeve 505 from The nursery pond 1 stretches out, and makes the adjustment sleeve 505 drive the connecting rod 504 and the elevating baffle 503 to move synchronously, so that the elevating baffle 503 extends from the partition bottom plate 501, forming a middle of the nursery area 2 and the feeding area 3. Partition, the height of this partition is much larger than the height of the tiger head crab seedlings, to prevent the larvae in the middle of the nursery area 2 from entering the feeding area 3 when the water is changed;

(H) After the lifting baffle 503 is raised, the power supply of the electromagnet 406 is turned on, so that the electromagnet 406 magnetically adsorbs the permanent magnet 405, so that the permanent magnet 405 moves downwards close to the electromagnet 406, and makes the permanent magnet 405 drive The lifting strip plate 403 shrinks toward the bottom plate 401, so that the upper end opening of the drainage groove 407 previously blocked by the lifting strip plate 403 is opened. At this time, the seawater located in the nursery pond 1 will follow the opened drainage groove 407 and communicate with each other. The water tank 408 is discharged to the outside, and the two guide strips 402 located on the surface of the bottom plate 401 make the water flow obliquely on the surface of the guide strip 402, so that the food residue and larval excrement located on the surface of the guide strip 402 can be washed away, ensuring that The inside of the eating area 3 is cleaned while changing the water.

Further, the area of the nursery area 2 occupies four-fifths of the nursery pond 1, and the area of the feeding area 3 occupies one-fifth of the nursery pond 1. The area ratio of four to one can distinguish between nursery and feeding. And through the feeding area 3, it is convenient to change the water inside the nursery pond 1.

Further, the thickness of the substrate is 10cm-15cm, and the height of the partition bottom plate 501 is greater than 15cm, so as to ensure that the partition bottom plate 501 can block the substrate during the water change, so as to prevent the substrate from flowing with the water flow during the water change, resulting in a large amount of substrate. churn.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (10)

1. a Chinese tiger head crab artificial nursery facility, comprising nursery pond (1), it is characterized in that: the interior of described nursery pond (1) is provided with nursery area (2), a side of described nursery area (2) A feeding area (3) is provided, and a partition mechanism (5) is provided in the middle of the nursery area (2) and the feeding area (3), and the partition mechanism (5) includes a partition bottom plate (501), and the partition bottom plate ( 501) is provided with a receiving groove (502) on the surface, the inner side of the receiving groove (502) is movably provided with a lifting baffle (503), and the upper surfaces of both ends of the lifting baffle (503) are provided with connecting rods ( 504), one side of the connecting rod (504) is provided with an adjustment sleeve (505), and the bottom end of the adjustment sleeve (505) is inserted into the seedling tank (1) from the upper surface of the nursery pond (1). ) inside and at the bottom end is provided with a lifting ring (507), the middle of the lifting ring (507) is provided with an adjusting screw (506), and the bottom end of the adjusting screw (506) is inserted inside the seedling pond (1) And the outer surface of the bottom end is provided with a screw gear (508), one side of the screw gear (508) is provided with an adjusting gear (509) meshing with the screw gear (508), and an adjusting motor (510) is arranged below the adjusting gear (509). ); The inside of the feeding area (3) is provided with a drainage and slag cleaning mechanism (4), and the drainage and slag cleaning mechanism (4) includes a bottom plate (401), and the surface of the bottom plate (401) is provided with two symmetrically distributed guides. A flow bar (402), an electromagnet (406) is arranged inside the bottom plate (401), a permanent magnet (405) is movably arranged above the electromagnet (406), and a permanent magnet (405) is arranged above There is a lift strip plate (403), elastic airbags (404) are embedded on both sides of the lift strip plate (403), and the bottom surface of the lift strip plate (403) is in the middle of the interior of the bottom plate (401). A blocking spring (409) is provided, the lifting strip plate (403) is movably clamped inside the bottom plate (401), and a drainage groove (407) is provided between both sides of the lifting strip plate (403) and the bottom plate (401). ), a communication water groove (408) is provided below the drainage groove (407), and the communication water groove (408) runs through the bottom end of the seedling pond (1); The upper surface of the nursery pond (1) is provided with two symmetrical guide chutes (7), the nursery area cleaning mechanism (6) is provided above the nursery area (2), and the nursery area cleaning mechanism (6) is provided above the nursery area (2). ) comprises a support top plate (608), a lift plate (614) is arranged below the support top plate (608), and a telescopic link (616) is arranged between the lift plate (614) and the support top plate (608), so An electric telescopic rod (617) is provided inside the supporting top plate (608), one end of the electric telescopic rod (617) is provided with a sliding base (618), and a rolling roller is movably provided in the middle of the sliding base (618). (619), a take-up rope (621) is wound around the outside of the take-up roller (619), one end of the take-up rope (621) is fixed on the outer surface of the take-up roller (619), and the other end penetrates through the support The bottom surface of the top plate (608) is connected with the surface of the lifting plate (614), and a driving shaft (620) is arranged through the middle of the winding roller (619), and one end of the driving shaft (620) penetrates the sliding base (618) And the end is provided with a winding motor (622); A water suction pipe (609) is arranged above the support top plate (608), and the bottom end of the water suction pipe (609) penetrates through the support top plate (608) and the lift plate (614) located below the support top plate (608). The bottom end of the water suction pipe (609) is provided with an absorption plate (610), an air outlet plate (611) is arranged below the lift plate (614), and an air flow guide strip (611) is arranged on the inner side of the air outlet plate (611). 615), the surface of the air outlet plate (611) is provided with an air blow pipe (612), and the upper end of the air blow pipe (612) penetrates the lift plate (614) and is connected to an external air pump, and two parts of the support top plate (608) are connected. A support rod (607) is provided below the end, the top of the support rod (607) is in contact with the bottom surface of the support top plate (608), and a straight connecting steel sheet (9) is provided on the outside. The support rod (607) An L-shaped connecting steel sheet (8) is arranged on the inner side of the bracket, and the support rod (607) is connected with the supporting top plate (608) through a straight connecting steel sheet (9) and an L-shaped connecting steel sheet (8); The bottom end of the support rod (607) is inserted into the inner side of the guide chute (7) and the end is provided with a lead screw (606), and both ends of the lead screw (606) are inserted into the seedling pond (1). ) inside and on the outer surface of one end is provided with a synchronous worm wheel (605), the lower part of the synchronous worm wheel (605) is provided with a driving worm (604) meshing with it, and the middle outer surface of the driving worm (604) is provided with a worm gear (603), a guide gear (602) meshing with the worm gear (603) is arranged below the worm gear (603), and a guide motor (601) is arranged at one end of the guide gear (602). 2. A kind of artificial seedling raising facility for Chinese tiger head crab according to claim 1, characterized in that: the outer side of the electromagnet (406) is covered with a waterproof cover (410), and the waterproof cover (410) is waterproofed deal with. 3. A kind of artificial seedling-raising facility for Chinese tiger head crab according to claim 1, characterized in that: the outer surface of the lead screw (606) and the inner side of the bottom end of the support rod (607) penetrated by the lead screw (606) The surfaces are provided with threads with the same rotation direction, the lead screw (606) and the support rod (607) are driven by threads, and the inner surface of the lifting ring (507) is provided with the same rotation direction as the outer surface of the adjusting screw (506). The lifting ring (507) and the adjusting screw (506) are driven by the thread. 4. A kind of artificial seedling raising facility of Chinese tiger head crab according to claim 1, it is characterized in that: the upper part of described adjusting sleeve (505) and connecting rod (504) are provided with connecting piece, and the upper part of described connecting piece is Both ends are respectively fitted with the top end surfaces of the adjusting sleeve (505) and the connecting rod (504) and are connected with the adjusting sleeve (505) and the connecting rod (504) by screws. 5 . The artificial seedling-raising facility of Chinese tiger head crab according to claim 1 , wherein the upper surfaces of both ends of the air outlet plate ( 611 ) are provided with connecting ropes ( 613 ), and the connecting ropes ( 613 ). ) are fixedly connected to the bottom surface of the lift plate (614). 6. A kind of artificial seedling raising facility of Chinese tiger head crab according to claim 1, is characterized in that: there is a certain height difference between described gas outlet plate (611) and absorption plate (610), and described height difference is greater than cultivation The height size of the parent crab. 7. An artificial seedling-raising facility for Chinese tiger head crab according to claim 2, characterized in that: the bottom surface of the sliding base (618) is provided with a bar-shaped groove running through, and a guide is provided below the bar-shaped groove A ring (623), the bottom end of the winding rope (621) passes through the middle of the guide ring (623). 8. a method for raising seedlings of Chinese tiger head crab artificial seedling raising facility, is characterized in that: described method for raising seedlings comprises the following steps: (A) After the construction of the nursery pond (1) is completed, use bricks to form a partition bottom plate (501) inside the nursery pond (1), and then insert the lifting partition plate (503) on the surface of the partition bottom plate (501) Inside the storage tank (502), the area inside the nursery pond (1) is divided into a nursery area (2) and a feeding area (3), and then the substrates required for cultivation are laid in the divided nursery area (2) area. , the substrate is fine sand in natural sea area (the fine sand for breeding parent crabs needs to be washed 3-5 times by sand filter and sea water, larvae < larvae are divided into three stages (Z1-Z3), and the larvae are transformed into macrophthalmia 2d. Cultivation of fine sand>Cultivated fine sand is filtered with a 40-mesh screen and then washed 6-8 times by sand filter with sea water), after the bottom is laid, add seawater to the inside of the nursery pond (1), and ensure that the salinity of the seawater is 25 Between -27; (B) Finally, put the parent crabs or larvae to be cultivated into the substrate surface laid in the nursery area (2), the stocking density of parent crabs should be 2-3 per square meter, the light intensity is 500Lux ~ 1000Lux, and the water temperature is 16 degrees. ～28 degrees, water depth of 0.8m～1.0m, continuous micro-aeration, feeding at night, the bait is mainly low-value fresh shellfish, supplemented by trash fish and shrimp, the feeding amount is 5% to 10% of the weight of the parent crab, Appropriately adjust according to the feeding situation, change the water once a day, and the water change amount is 80% to 100%. Before adding water, clean the dirt and residual bait at the bottom of the pool, and pick out injured and dead parent crabs; (C) The breeding density of larvae is 15,000 to 20,000 per cubic meter. For individual breeding pools with a high density of larvae, siphoning can be used to reduce the breeding density; it is also possible to stop aeration for 3 min to 5 min, and use the phototaxis of larvae. The upper larvae should be placed in other larvae cultivation tanks. In the first cultivation tank, the larvae hatched during the same period should be cultivated. During cultivation, the water temperature should be kept at 21 to 28 degrees, the salinity of 25 to 27, the pH value of 7.8 to 8.2, and the dissolved oxygen ≥ 5mg/L. Ammonia nitrogen ≤0.1mg/L, hydrogen sulfide <<0.1mg/L, change the water once a day, and observe the larvae's stomach fullness, vitality, body surface dirt, residual bait, etc. at least 3 times a day, and when problems occur take timely response measures; (D) When the substrate filled in the nursery area (2) is cleaned, the larvae are attracted to the nursery area (3) by the larval phototaxis in the larval stage, and the larvae are sieved with a 40-80 mesh sieve pocket in the later larval stage. Move to the nursery area (3), and separate the nursery area (3) from the nursery area (2) to avoid damaging the larvae when cleaning the substrate. Turn on the power of the electric telescopic rod (617) and the winding motor (622), at this time the winding motor (622) will start and drive the driving shaft (620) to rotate, so that the driving shaft (620) drives the winding roller (619) ) is rotated so that the take-up rope (621) rolled up by the take-up roller (619) becomes loose, and the lifting plate (614) previously suspended by the take-up rope (621) is lowered down, while the electric telescopic rod (617) Drive the sliding base (618) to move, so that the winding rope (621) is always in the same position when it is released, and will not tilt or move until the air outlet plate (611) contacts the surface of the substrate, at which point the winding is stopped. motor (622) and electric telescopic rod (617); (E) Next, start the air pump connected to the air blowing pipe (612) and the suction pump connected to the water pumping pipe (609), and the air pump sends the air flow to the air outlet plate (611) through the air blowing pipe (612), so that the air flow passes through the air flow guide strip (615). ) is guided and blown on the surface of the substrate obliquely to blow the excrement or other impurities located on the surface of the substrate. Excrement and impurities are sucked into the suction pipe (609) and discharged to the outside; (F) When cleaning the excrement and impurities on the bottom surface, the guide motor (601) can be activated at the same time, so that the guide motor (601) drives the guide gear (602) and the worm gear (603) to rotate so that the driving worm (604) drives the The two synchronous worm gears (605) rotate, so that the lead screw (606) rotates around the axis of the synchronous worm gear (605), and through the thread transmission between the lead screw (606) and the support rod (607), the support rod (607) moves along the axis of the support rod (607). Move along the guide chute (7), so that the two support rods (607) drive the support top plate (608) and the lift plate (614) to move as a whole, so that the air outlet plate (611) moves against the surface of the substrate to move the seedling area. (2) Clean all substrate surfaces in the area; (G) When it is necessary to replace the seawater inside the nursery pond (1), first turn on the power supply of the regulating motor (510) and start it, so that the regulating motor (510) drives the regulating gear (509) and the screw gear (508) to rotate to drive The adjusting screw (506) rotates synchronously. At this time, the adjusting screw (506) is driven by the thread between the adjusting screw (506) and the lifting ring (507), so that the lifting ring (507) moves upward along the axis of the adjusting screw (506), so that the lifting ring ( 507) Drive the adjusting sleeve (505) to protrude from the nursery pond (1), and make the adjusting sleeve (505) drive the connecting rod (504) and the lifting baffle (503) to move synchronously, so that the lifting baffle (503) Extending from the partition bottom plate (501), a partition is formed between the nursery area (2) and the feeding area (3) to prevent the larvae in the middle of the nursery area (2) from entering the feeding area (3) when changing water; (H) After the lifting baffle (503) is raised, the power supply of the electromagnet (406) is turned on, so that the electromagnet (406) magnetically attracts the permanent magnet (405), so that the permanent magnet (405) moves downward and approaches electromagnet (406), and make the permanent magnet (405) drive the lifting strip plate (403) to shrink toward the bottom plate (401), so that the upper end of the drainage groove (407) originally blocked by the lifting strip plate (403) is open After opening, the seawater located inside the nursery pond (1) will be discharged outward along the opened drainage groove (407) and the communicating water groove (408), and will pass through the two guide strips (402) located on the surface of the bottom plate (401). ) makes the water flow obliquely on the surface of the guide bar (402), and the food residues and larval excrement located on the surface of the guide bar (402) can be washed away, so as to ensure that the interior of the feeding area (3) is cleaned while changing the water. 9. The method for raising seedlings according to claim 8, characterized in that: the area of the nursery area (2) occupies four-fifths of the area of the nursery pond (1), and the area area of the feeding area (3) occupies the area of raising seedlings One-fifth of pool (1). The seedling raising method according to claim 8, characterized in that: the thickness of the substrate is 10cm-15cm, and the height of the partition bottom plate (501) is greater than 15cm.

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