CN218104561U - Anti-falling device used in breeding period of oyster hung and raised in north - Google Patents
Anti-falling device used in breeding period of oyster hung and raised in north Download PDFInfo
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- CN218104561U CN218104561U CN202221227132.4U CN202221227132U CN218104561U CN 218104561 U CN218104561 U CN 218104561U CN 202221227132 U CN202221227132 U CN 202221227132U CN 218104561 U CN218104561 U CN 218104561U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention discloses an anti-falling device used in the breeding period of oyster hanging culture in the north. The main body of the device is an anti-drop device frame and a suspended oyster cultivating rope; the anti-falling device frame is a cylindrical closed frame surrounded by iron wires, and a polyethylene net is covered outside the frame; the position of an inner axial line of the anti-falling device frame is provided with a cultured oyster rope in a penetrating way, a plurality of comb hole scallop shells are clamped in the cultured oyster rope, the comb hole scallop shells are fixed by a nylon monofilament rope, and a pendant is connected below the cultured oyster rope. The utility model provides a hang and support oyster dropout prevention means can overcome traditional oyster lifting rope and breed and cause the oyster at the growth in-process, and along with the individual grows up, because of what stormy waves influence arouses drops, alleviates the degree of dropping on the one hand, and the other party can be collected the individual who drops bottom the device, can not cause the oyster to lose, utilizes the utility model discloses can break through traditional oyster's breeding method and technique.
Description
Technical Field
The utility model relates to an oyster cultivation method especially relates to a device that prevents to breed oyster and drop during oyster lifting rope is bred, belongs to aquaculture technical field.
Background
The oysters are the first cultured shellfish in the world, belong to one of four cultured shellfish in China, have the yield of 542.8 ten thousand tons in 2020, account for 1/3 of the total shellfish culture yield in China, and account for more than 85% of the total oyster production yield in the world. At present, the oyster cultivation mode in northern China is mainly raft type seedling clamping lifting rope cultivation in shallow gulf of sea, and the method has the advantages of simple cultivation mode, low cultivation cost, low labor intensity, no need of a large number of managers, convenient management, no need of cage replacement and cage pouring, and capability of improving floating boom buoyancy by only increasing floating balls according to growth period to prevent sinking and the like, so the method is deeply favored by cultivation farms, but the raft type seedling clamping cultivation method for oyster is characterized in that the oyster partially falls off in the weather of stormy waves when the oyster grows to 5-6cm, the oyster falls off and sinks into the sea bottom, and generally large individuals fall off firstly, so the oyster cultivation yield is lost or reduced, the yield is generally 10-20% due to the fall off, and the oyster falls off more seriously by about 30% when the individuals are large.
In addition, another disadvantage of the cultivation method is that the lifting ropes and attachments on the surface of the cultivated oyster shell affect growth on one hand and the appearance of the oyster on the other hand, so that the quality of the oyster is affected, the attachments can also occupy 15-20% of the weight, and impurities need to be removed and washed when the oyster is harvested and sold.
Therefore, at present, an improved oyster hanging rope cultivation method is urgently needed, so that the oyster hanging rope cultivation method can prevent and reduce falling, can collect falling, is not sunk to the seabed, reduces loss, reduces the influence of external attachments on the quality of oysters, and can greatly improve the oyster cultivation yield and economic benefit.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides an anti-drop device and method for breeding oysters in the northern area, so as to overcome the defect that oysters bred by a lifting rope drop off and have more attachments, and to overcome the defects of the prior art.
In order to achieve the above purpose, the utility model adopts the following specific technical scheme:
an anti-drop device during the cultivation period of suspended oyster, the main body of the device is an anti-drop device frame and a suspended oyster cultivation rope tied above the frame; the anti-falling device frame is a cylindrical closed frame surrounded by iron wires, and a polypropylene net is covered outside the frame; the inner axial line position of the anti-falling device frame is provided with a suspended oyster culture rope in a penetrating way, a plurality of bar hole scallop shells are clamped in the suspended oyster culture rope, the nylon monofilament rope is used for fixing the bar hole scallop shells, and a sinker is connected below the suspended oyster culture rope and is arranged at the outer bottom side of the anti-falling device frame and used for stabilizing the integral device; and a device lifting rope is connected between the anti-falling device frame and the suspended oyster culture rope.
Furthermore, a plurality of iron wire rings are arranged in the anti-falling device frame and used for enhancing the stability of the whole device.
Furthermore, an iron wire cross beam is arranged in the bottom surface of the anti-falling device frame and used for supporting the bottom surface of the anti-falling device frame.
Furthermore, a polypropylene net and a device fixing rope are arranged on the side surface of the anti-falling device frame and used for fixing the devices.
Furthermore, the bottom surface of the anti-falling device frame is provided with a bottom device and a rope fixing rope for further fixing the bottom of the device.
Furthermore, the anti-falling device frame is a cylindrical round frame which is made of hard iron wires with the diameter of 5-6mm and has the diameter of 20-25cm and the height of 2.0-2.2 m, an iron wire ring 6 with the diameter of 5-6mm is arranged in the middle for supporting, 6-8 iron wires are arranged at the bottom for supporting a net-shaped beam, and a polypropylene net with the diameter of 20-25cm and the aperture of 2-3 cm is covered outside the frame; the polypropylene net and the device fixing rope are 10-12 monofilament polyethylene ropes; the bottom device and the grown rope fixing rope are 25-28 monofilament polyethylene ropes; the device lifting rope is a 25-28 monofilament polyethylene rope.
An anti-falling method in the cultivation period of the suspended oyster comprises the following steps:
(1) The method comprises the following steps of moving the ctenopharyngodon idellus shells attached with oyster seedlings in an indoor seedling raising workshop to an outdoor soil pond for intermediate cultivation until the oyster seedlings are 0.8-1.0 cm in size, eliminating dead and unhealthy oyster seedlings and vacant pieces during cultivation, controlling the size and the number of the ctenopharyngodon idellus shells, facilitating accurate seedling clamping cultivation and controlling cultivation density;
(2) Clamping the chlosma farreri shells with the oyster seedlings on oyster cultivation ropes, wherein each oyster cultivation rope can clamp 20-25 chlosma farreri shells, and the spatfall amount of each oyster seedling is 15-20;
(3) The oyster seedlings are loaded to the anti-falling device during the suspended oyster cultivation period: after the oyster cultivation rope clamps the seedlings, directly placing the seedling clamping cultivation rope into the anti-drop device, enabling the bottom of the cultivation rope, the bottom of the device and the sinker stone system to be integrated, tying the upper part of the device and the oyster cultivation rope, then shipping the device to a cultivation sea area, and hanging the device on a cultivation floating boom of a cultivation raft frame for cultivation;
(4) And (3) managing the oysters in a cultivation period, namely periodically adding floats according to growth conditions and weight in the oyster suspension cultivation period, and harvesting, selling or cage fattening after the oysters reach the commodity specification after cultivation for 6-7 months.
Further, the chlamys farreri shell is subjected to acid etching before the oyster shell is attached to enhance the attaching effect.
Further, in the step, the chlamys farreri attached with the oyster fries is subjected to timing oscillation treatment during the cultivation period, so that unstable oyster fries are removed.
Further, in the step (2), the ctenochloropsis pectinata monofilament rope is used for fixing the ctenocarpium pectinata scallop shells on the cultivation rope, so that the oyster seedlings are firmly attached, and the ctenocarpium pectinata shells are prevented from falling off and losing.
Further, each of the anti-falling devices is a cultivation floating boom with the length of 100 meters, and 150-180 lifting ropes and anti-falling devices can be stocked.
The utility model has the advantages and beneficial effect:
the utility model provides a hang foster oyster anti-drop method and simple and easy device can overcome traditional oyster lifting rope and breed and cause the oyster in the growth process, grow up along with the individual, drop because of the stormy waves influence arouses, alleviate the degree of droing on the one hand, the other party can be collected the individual that drops bottom the device, can not cause the oyster to lose, the polypropylene net of device outside simultaneously, can prevent that the attachment from adhering to on the oyster shell of breeding and cultivating the rope, attachment and debris greatly reduced, the clean quality that improves the oyster of oyster shell table, traditional oyster's breeding method and technique have been broken through.
Practice proves that the utility model can averagely improve the breeding yield by 15 to 20 percent, has remarkable economic benefit, obviously improves the breeding yield of oysters and also improves the quality of the bred oysters.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the cultivation device of the present invention.
The device comprises a 1-hanging oyster culture rope, a 2-anti-falling device frame, a 3-comb-hole scallop shell, a 4-nylon monofilament rope, a 5-sinker, a 6-wire loop, a 7-wire cross beam, an 8-polypropylene net, a 9-polypropylene net and device fixing rope, a 10-bottom device and culture rope fixing rope and an 11-device lifting rope.
Detailed Description
The present invention will be further described with reference to the following detailed description and the accompanying drawings.
Example 1:
an anti-drop device during the cultivation period of suspended oyster, as shown in figure 1, the main body of the device is an anti-drop device frame 2 and a suspended oyster cultivation rope 1 tied above the frame; the anti-falling device frame 2 is a cylindrical closed frame surrounded by iron wires, and a polypropylene net is covered outside the frame; the inner axial line position of the anti-falling device frame 2 is provided with a cultured oyster cultivation rope 1 in a penetrating way, a plurality of comb hole scallop shells 3 are clamped in the cultured oyster cultivation rope 1, a nylon monofilament rope 4 is used for fixing the comb hole scallop shells 3, and a falling stone 5 is connected below the cultured oyster cultivation rope 1 and is arranged at the outer bottom side of the anti-falling device frame 2 for stabilizing the integral device; and a device lifting rope 11 is connected between the anti-falling device frame 2 and the oyster hanging culture rope 1.
Be equipped with a plurality of iron wire circles 6 in the dropout prevention means frame 2 for strengthen the steadiness of whole device. An iron wire cross beam 7 is arranged in the bottom surface of the anti-falling device frame 2 and used for supporting the bottom surface of the anti-falling device frame 2. The side surface of the anti-falling device frame 2 is provided with a polypropylene net and a device fixing rope 9 for fixing the devices. The bottom surface of the anti-falling device frame 2 is provided with a bottom device and a rope fixing rope 10 for further fixing the bottom of the device.
In actual use, the device can adopt the following specific specifications:
the anti-falling device frame 2 is a cylindrical round frame which is made of hard iron wires with the diameter of 5-6mm and has the diameter of 20-25cm and the height of 2.0-2.2 m, an iron wire ring 6 with the diameter of 5-6mm is arranged in the middle for supporting, 6-8 iron wires are arranged at the bottom for supporting a net-shaped cross beam 7, and a polypropylene net 8 with the diameter of 20-25cm and the aperture of 2-3 cm is covered outside the frame; the polypropylene net and device fixing rope 9 is a monofilament polyethylene rope of 10-12; the bottom device and the grown rope fixing rope 10 are 25-28 monofilament polyethylene ropes; the device lifting rope 11 is a 25-28 monofilament polyethylene rope.
Example 2:
an anti-falling method in the period of cultivating oysters in a hanging mode comprises the following steps:
(1) The chlamys farreri 3 with oyster seedlings in an indoor seedling raising workshop is moved to an outdoor soil pond for intermediate cultivation until the size of the oyster seedlings is 0.8-1.0 cm, dead and unhealthy oyster seedlings and empty pieces are eliminated during cultivation, the size and the number of the upper seedlings of the chlamys farreri shells are controlled, accurate seedling clamping cultivation is facilitated, and the cultivation density is controlled;
(2) Clamping the comb-hole scallop shells 3 with the oyster seedlings on the oyster cultivation rope, fixing the scallop shells 3 on the oyster cultivation rope by using a nylon monofilament rope 4, so that the oyster seedlings are firmly attached, and the scallop shells 3 are prevented from falling off and losing, wherein each oyster cultivation rope can clamp 20-25 comb-hole scallop shells, and the spatfall amount of each oyster seedling is 15-20 oyster seedlings;
(3) The oyster seedlings are loaded to the anti-falling device during the cultivation period of the suspended oyster: after the oyster cultivation rope clamps the seedlings, directly placing the seedling clamping cultivation rope into the anti-drop device, enabling the bottom of the cultivation rope, the bottom of the device and the sinker stone system to be integrated, tying the upper part of the device and the oyster cultivation rope, then shipping the device to a cultivation sea area, and hanging the device on a cultivation floating boom of a cultivation raft frame for cultivation;
(4) And (3) managing the oysters in a cultivation period, namely periodically adding floats according to growth conditions and weight in the oyster suspension cultivation period, and harvesting, selling or cage fattening after the oysters reach the commodity specification after cultivation for 6-7 months.
In the actual culture process, each of the anti-falling devices is a culture floating rope with the length of 100 meters, and 150-180 lifting ropes and the anti-falling devices can be stocked.
Practice proves that the device and the method provided by the embodiments 1 and 2 can improve the culture yield by 20-30%, and the economic benefit is obvious.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the protection scope of the present invention cannot be limited thereby. All equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (6)
1. An anti-drop device during the cultivation of suspended oyster is characterized in that the main body of the device comprises an anti-drop device frame (2) and a suspended oyster cultivation rope (1) tied above the frame; the anti-falling device frame (2) is a cylindrical closed frame formed by enclosing iron wires, and a polypropylene net is covered outside the frame; the inner axial line position of the anti-falling device frame (2) is provided with a cultured oyster growing rope (1) in a penetrating manner, a plurality of comb-hole scallop shells (3) are clamped in the cultured oyster growing rope (1), chinlon monofilament ropes (4) are used for fixing the comb-hole scallop shells (3), and a falling stone (5) is connected below the cultured oyster growing rope (1), and the falling stone (5) is arranged at the outer bottom side of the anti-falling device frame (2) and used for stabilizing the integral device; and a device lifting rope (11) is connected between the anti-falling device framework (2) and the oyster cultivating rope (1).
2. The drop prevention device for oyster cultivation according to claim 1, wherein a plurality of wire loops (6) are provided in the drop prevention device frame (2) for enhancing the stability of the whole device.
3. The drop-off prevention device for the suspended culture period of oysters according to claim 1, wherein an iron wire cross beam (7) is arranged in the bottom surface of the drop-off prevention device frame (2) and used for supporting the bottom surface of the drop-off prevention device frame (2).
4. The dropout prevention means during oyster cultivation according to claim 1, wherein the dropout prevention means frame (2) is provided at a side surface thereof with a polypropylene net and a means fixing string (9) for mutual fixation of the means.
5. The dropout prevention means during the cultivation of oysters for hanging cultivation according to claim 1, wherein the bottom surface of the dropout prevention means frame (2) is provided with a bottom means and a rope fixing rope (10) for further fixing the bottom of the device.
6. The anti-drop device for oyster cultivation in hanging mode according to claim 5, wherein the anti-drop device frame (2) is made of hard iron wires with the diameter of 5-6mm into a cylindrical round frame with the diameter of 20-25cm and the height of 2.0-2.2 m, the middle of the frame is supported by an iron wire ring (6) with the diameter of 5-6mm, the bottom of the frame is supported by 6-8 iron wires which are made into a net-shaped cross beam, and the frame is covered by a polypropylene net (8) with the diameter of 20-25cm and the pore diameter of 2-3 cm; the polypropylene net and the device fixing rope (9) are 10-12 monofilament polyethylene ropes; the bottom device and the grown rope fixing rope (10) are 25-28 monofilament polyethylene ropes; the device lifting rope (11) is a 25-28 monofilament polyethylene rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221227132.4U CN218104561U (en) | 2022-05-22 | 2022-05-22 | Anti-falling device used in breeding period of oyster hung and raised in north |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221227132.4U CN218104561U (en) | 2022-05-22 | 2022-05-22 | Anti-falling device used in breeding period of oyster hung and raised in north |
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| Publication Number | Publication Date |
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| CN218104561U true CN218104561U (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221227132.4U Active CN218104561U (en) | 2022-05-22 | 2022-05-22 | Anti-falling device used in breeding period of oyster hung and raised in north |
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| CN (1) | CN218104561U (en) |
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- 2022-05-22 CN CN202221227132.4U patent/CN218104561U/en active Active
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