Testing device for testing growth performance of bulk freshwater fish

Abstract

A testing device for testing growth performance of bulk freshwater fishes is characterized by comprising an operation platform, a plurality of rectangular frames are arranged on the operation platform, net cages are arranged in the rectangular frames, passages are arranged among the rectangular frames, stand columns are arranged below the rectangular frames, micropore oxygenation pipelines are arranged on the stand columns, and the micropore oxygenation pipelines are communicated with the rectangular frames. A submersible pump is arranged in the rectangular frame, a drainage pipe is arranged on the outer side of the operation platform, supporting columns are arranged on the rectangular frame, lug buckles are arranged on the supporting columns, rope loops are arranged on the lug buckles, and olive buckles are arranged on the rope loops; the device can meet the growth performance test requirements of a large quantity of freshwater fishes in all stages from fry (water spray) to commercial fish, is convenient to operate and manage, effectively avoids and solves the technical problems of inconsistent feeding environment, insufficient representativeness, high mark loss rate and the like in the growth performance test mode in the prior art, and is implemented in a pond site, so that data is more real and more accurate. The accuracy is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture, in particular to a test device for testing the growth performance of bulk freshwater fish. Background Art

[0002] Bulk freshwater fish is a general term for several freshwater fish with high production in my country, specifically referring to seven species of Cyprinidae: black carp, grass carp, silver carp, bighead carp, common carp, crucian carp, and bream. The breeding and promotion of bulk freshwater fish are of great significance to ensuring food security and ecological safety. Growth is one of the key breeding traits, and the speed of growth is directly related to the production volume and the economic benefits of farmers. According to the requirements of the "Aquatic Products Industry Standard of the People's Republic of China - Test Fish for Growth Performance of New Aquatic Species" and other relevant standards, the test and control species should have basically the same breeding methods, environmental requirements, stocking density, feed (bait) types, and feeding methods. At least three parallel groups should be set up for the test and control species, and the test period is generally no less than 90 days. At the end of the test, the growth rate, group growth uniformity, and survival rate of the test and control species are calculated and compared. There are four main methods for growth performance testing in the existing technology: one is to culture fish individually in culture barrels, breeding tanks, breeding tanks, etc. of the same size. This method is only suitable for small-scale tests. The water quality during the test is difficult to control. Too high a breeding density can easily lead to slow growth of fish, easy disease, and even death. The second is to fix wooden or bamboo stakes at the bottom of the pond and use plastic sheets, plastic boards, fiberboards, rubber sheets and other materials to enclose a certain size of test water body (grid) for individual culture. This method is difficult to ensure that the water environment of the test subjects is the same, especially near the water source and near the water outlet. The growth of fish is often significantly different, and the accuracy and authenticity of the test results are affected by environmental differences such as water flow, water quality and oxygen content. In addition, there are many inconveniences when taking samples and weighing, such as difficulty in fishing, complex operation and poor maintenance. Third, floating frames and enclosures are assembled into enclosures for individual breeding. In severe weather such as strong winds and heavy rains, the enclosures are prone to tilting and twisting, and the overall force on the enclosures is uneven. The stability in the water is unreliable, and it is easy to escape. In addition, daily breeding management and operation are inconvenient. Fourth, by cutting fins, injecting fluorescent pigments or PIT (Passive Injection Tumor Injection), the growth of fish is often significantly different, and the accuracy and authenticity of the test results are affected. In addition, when taking samples and weighing, there are many inconveniences such as difficulty in fishing, complex operation and poor maintenance. Third, by using floating frames and enclosures to assemble into enclosures for individual breeding, this method is prone to tilting and twisting in severe weather such as strong winds and heavy rains. The overall force on the enclosures is uneven, and the stability in the water is unreliable, and it is easy to escape. In addition, daily breeding management and operation are inconvenient. The method involves tagging fish with an integrated transponder (IIT) and then placing the marked individuals in the same pond or cement tank for culture. However, this method can easily cause confusion or label loss due to factors such as the location of fin clipping, fin ray regeneration, or the location and depth of fluorescent pigment injection. Furthermore, injecting PIT tags has certain requirements for fish size; smaller fish cannot be marked. Furthermore, the needle puncture wound during injection is prone to secondary infection or death. The marking and identification equipment is expensive, requiring professional personnel to apply and identify the tags, and the tags are prone to migration within the fish. Furthermore, due to the inherent differences in biological learning characteristics (such as predatory behavior and stress physiological responses) between species, if these species are tested together, human factors cannot be avoided, thus losing the accuracy and authenticity of the test. To address these issues, a test device for growth performance testing of bulk freshwater fish was proposed. Utility Model Content

[0003] In response to the above technical problems, the utility model provides a test device for testing the growth performance of bulk freshwater fish, which is characterized by comprising an operating platform, a plurality of rectangular frames arranged on the operating platform, cages arranged inside the rectangular frames, aisles arranged between the rectangular frames, columns arranged below the rectangular frames, microporous aeration pipes arranged on the columns, a submersible pump arranged inside the rectangular frames, a drainage pipe arranged outside the operating platform, support columns arranged on the rectangular frames, ear buckles arranged on the support columns, rope loops arranged on the ear buckles, and olive buckles arranged on the rope loops;

[0004] Furthermore, the microporous aeration pipe is located between the bottoms of the columns, the microporous aeration pipe is tied to the steel cable between the columns, an air intake pipe is provided on the microporous aeration pipe, a Roots blower is provided on the air intake pipe, and the Roots blower is fixedly mounted on a platform 20 cm higher than the pool embankment;

[0005] Furthermore, the microporous aeration pipe extends to the bottom of the cage, until the bottom of each cage is provided with a microporous aeration pipe;

[0006] Furthermore, right-angle steel support columns are extended upward from the four corners and the inner side of the center of the rectangular frame. Two ear buckles are provided on the inner side of the upper part of the support column, and the ear buckle is connected to an upper corner rope of the net box. An ear buckle is provided on the inner side of the bottom of the column of the rectangular frame. A rope loop is provided between the ear buckle on the inner side of the upper part of the support column and the ear buckle on the inner side of the bottom of the column. Two single-eye olive buckles are tied to the rope loop, and one of the olive buckles is connected to a bottom corner rope of the net box.

[0007] Furthermore, the cage is open and made of polyethylene, with a length and width of 4m×3m respectively. The fry box is immersed in water at a depth of 0.5-0.6m, and the fingerling box is immersed in water at a depth of 0.8-1.6m. Embossed iron plates are laid and welded on the top of the rectangular frame to build an operating platform and aisle. The operating platform is 2.3m wide and the aisle is 0.5m wide.

[0008] Beneficial effects of the utility model:

[0009] 1. The present invention provides a test device for testing the growth performance of bulk freshwater fish. The device is representative, practical, and reusable. Several rectangular frames of uniform size are arranged in the same water body, and open test cages of uniform area are arranged within the frames. The device is stable and easy to operate and manage. It can meet the growth performance testing requirements of bulk freshwater fish at all stages, from fry (sprigs) to commercial fish, and effectively avoids and solves technical problems of existing growth performance testing methods, such as inconsistent breeding environments, insufficient representativeness, and high marker loss rates. Because the device is implemented on-site in ponds, the data is more accurate and more authentic.

[0010] 2. The utility model provides a test device for testing the growth performance of bulk freshwater fish. Daily sampling and weighing can be completed by only 2 to 3 people, saving labor and time, and is easy to operate. The net cages are easy to replace and clean, and have a high reuse rate.

[0011] 3. The microporous aeration tube provided by the utility model extends to the bottom of the cage, so that each cage is equipped with a microporous aeration tube at the bottom, which can significantly increase the oxygen content in the test water, effectively avoiding and solving the problem of the test results being affected by environmental differences such as water flow, water quality and oxygen content;

[0012] 4. The species in each box of the utility model are raised separately, and the test results are convincing, which effectively avoids the unscientific method of putting species with different biological learning characteristics (such as feeding competition, stress physiological response, etc.) together for testing due to human factors;

[0013] 5. The inner ear buckles on the upper part of the support column, the inner ear buckles on the bottom of the column, the rope loops and the single-eye olive buckle of the utility model can not only ensure that the net of the cage is evenly stressed, but also fully stretch the net, increasing the utilization space of the cage. It effectively avoids and solves the problems of net deformation, tilting and twisting caused by uneven stress on the four corners of the cage, as well as unreliable stability in water and easy breakage and escape.

[0014] 6. The right-angle steel support columns within the framework of this utility model can be adjusted to raise the upper line of the cage 60cm above the water surface, especially during the fish breeding stage, thereby preventing birds from preying on the test fish and making the test data more accurate;

[0015] 7. The aisle between the operating platform and the frame of the utility model is convenient for daily operations such as stocking, feeding, and fish disease prevention while ensuring safety;

[0016] 8. The olive buckle of this utility model is used to limit the depth of the net cage into the water, effectively reducing the wear of the rope loop and increasing the service life. In addition, the Roots blower is located on the pond bank, which is convenient for daily maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a top view of the overall structure of a test device for testing the growth performance of bulk freshwater fish in the utility model;

[0018] Figure 2 This is a schematic diagram of the framework, cages and oxygenation equipment of a test device for testing the growth performance of bulk freshwater fish in the utility model;

[0019] Figure 3 This is a schematic diagram of a rope loop for fixing the bottom corner of a cage in a test device for testing the growth performance of bulk freshwater fish in the utility model;

[0020] As shown in the figure: 1 operating platform, 2 rectangular frame, 3 cage, 4 aisle, 5 pillars, 6 microporous aeration pipe, 7 submersible pump, 8 drainage pipe, 9 support column, 10 ear buckle, 11 rope loop, 12 olive buckle, 13 steel cable, 14 air intake pipe, 15 Roots blower. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Example 1

[0025] The utility model provides a test device for testing the growth performance of bulk freshwater fish, which is characterized by comprising an operating platform 1, a plurality of rectangular frames 2 are arranged on the operating platform 1, net cages 3 are arranged in the rectangular frames 2, aisles 4 are arranged between the rectangular frames 2, columns 5 are arranged below the rectangular frames 2, microporous aeration pipes 6 are arranged on the columns 5, a submersible pump 7 is arranged in the rectangular frames 2, a drainage pipe 8 is arranged outside the operating platform 1, support columns 9 are arranged on the rectangular frames 2, ear buckles 10 are arranged on the support columns 9, rope loops 11 are arranged on the ear buckles 10, and olive buckles 12 are arranged on the rope loops 11;

[0026] Furthermore, a microporous aeration pipe 6 is located between the bottoms of the columns 5, and the microporous aeration pipe 6 is tied to a steel cable 13 between the columns 5. An air inlet pipe 14 is provided on the microporous aeration pipe 6, and a Roots blower 15 is provided on the air inlet pipe 14. The Roots blower 15 is fixedly mounted on a platform 20 cm higher than the pool embankment.

[0027] Furthermore, the microporous aeration pipe 6 extends to the bottom of the cage 3 until the bottom of each cage 3 is provided with a microporous aeration pipe 6;

[0028] Furthermore, right-angle steel support columns 9 are extended upward from the four corners and the center inner side of the rectangular frame 2. Two ear buckles 10-1 are provided on the inner side of the upper part of the support column 9. The ear buckle 10 is connected to an upper corner rope of the net box 3. An ear buckle 10-1 is provided on the inner side of the bottom of the column 5 of the rectangular frame 2. A rope loop 11 is provided between the ear buckle 10 on the inner side of the upper part of the support column 9 and the ear buckle 10-1 on the inner side of the bottom of the column 5. Two single-eye olive buckles 12 are tied to the rope loop 11, and one of the olive buckles 12 is connected to a bottom corner rope of the net box 3.

[0029] Furthermore, the cage 3 is open and made of polyethylene, with a length and width of 4m×3m respectively. The fry box is immersed in water at a depth of 0.5-0.6m, and the fingerling box is immersed in water at a depth of 0.8-1.6m. Embossed iron plates are laid and welded on the top of the rectangular frame 2, and an operating platform 1 and aisle 4 are built. The operating platform 1 is 2.3m wide and the aisle 4 is 0.5m wide.

[0030] Example 2

[0031] When in use, the position of the column 5 is determined according to the planning and design plan, the foundation is cleaned and leveled, and a pit is dug. After the embedded parts are installed, concrete is poured. Vibration or vibration is used to ensure that the concrete fully fills the embedded parts. After solidification, the galvanized pipe column 5 is welded on the embedded parts, and anti-corrosion is done at the welding point. After the column 5 is firmly welded, a rectangular frame 2 welded by I-beams is laid and welded on the top of the column 5. An embossed iron plate is laid and welded on the top of the rectangular frame 2 to build an operating platform 1 and an aisle 4. The operating platform 1 is 2.3m wide and the aisle 4 is 0.5m wide. Right-angle steel support columns 9 extend upward from the four corners and the center inner side of the rectangular frame 2. Two ear buckles 10 are provided on the inner side of the upper part of the support column 9, one of which is connected to an upper corner rope of the net box 3 to facilitate the bundling of the net box 3;

[0032] Moreover, an ear buckle 10-1 is provided on the inner side of the bottom of the column 5 of the rectangular frame 2, and a rope loop 11 is provided between the inner ear buckle 10 on the upper part of the support column 9 and the inner ear buckle 10-1 on the bottom of the column 5. Two single-eye olive buckles 12 are tied to the rope loop 11, one of which is connected to a bottom corner rope of the net box 3, which can fully stretch the net and avoid the deformation of the net caused by uneven force on the net box 3, reducing the breeding volume and affecting the normal test. The other olive buckle 12 is used to limit the depth of the net box 3 into the water and effectively reduce the wear of the rope loop 11;

[0033] Moreover, the cage 3 is open and made of polyethylene, with a length and width of 4m×3m respectively, a water depth of 0.5-0.6m for the fry box and 0.8-1.6m for the fingerling box;

[0034] Moreover, a microporous aeration pipe 6 is provided between the bottoms of the upright posts 5 of the rectangular frame 2, and the microporous aeration pipe 6 is bundled and bound on the steel cable 13 between the upright posts 5. The microporous aeration pipe 6 is connected to the air intake pipe 14, and the air intake pipe 14 is connected to the Roots blower 15. The Roots blower 15 is fixedly mounted on a platform 20 cm higher than the pond embankment. The microporous aeration pipe 6 extends to the bottom of the net cage 3 until a microporous aeration pipe 6 is provided at the bottom of each net cage 3.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. The various components mentioned in the present invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in this utility model is defined by the appended claims and their equivalents.

Claims

1. A test device for testing the growth performance of bulk freshwater fish, characterized in that: It includes an operating platform, on which several rectangular frames are arranged, mesh cages are arranged inside the rectangular frames, aisles are arranged between the rectangular frames, columns are arranged below the rectangular frames, microporous oxygenation pipes are arranged on the columns, submersible pumps are arranged inside the rectangular frames, a drainage pipe is arranged outside the operating platform, support columns are arranged on the rectangular frames, ear buckles are arranged on the support columns, rope loops are arranged on the ear buckles, and olive buckles are arranged on the rope loops.

2. A test device for testing the growth performance of bulk freshwater fish according to claim 1, characterized in that: The microporous aeration pipe is located between the bottoms of the columns, the microporous aeration pipe is tied to the steel cable between the columns, an air intake pipe is provided on the microporous aeration pipe, a Roots blower is provided on the air intake pipe, and the Roots blower is fixedly installed on a platform 20 cm higher than the pool embankment.

3. A test device for testing the growth performance of bulk freshwater fish according to claim 2, characterized in that: The microporous oxygenation pipeline extends to the bottom of the net cage until the bottom of each net cage is provided with a microporous oxygenation pipeline.

4. A test device for growing freshwater fish according to claim 3, characterized in that The rectangular frame has right-angled steel support columns extending upward from the four corners and the inner center. Two ear buckles are provided on the inner side of the upper part of the support column, and the ear buckles are connected to an upper corner rope of the net box. An ear buckle is provided on the inner side of the bottom of the column of the rectangular frame. A rope loop is provided between the ear buckle on the inner side of the upper part of the support column and the ear buckle on the inner side of the bottom of the column. Two single-eye olive buckles are tied on the rope loop, and one of the olive buckles is connected to a bottom corner rope of the net box.

5. A test device for growing freshwater fish according to claim 4, characterized in that The cage is open and made of polyethylene, with a length and width of 4m×3m respectively. The fry box is immersed in water at a depth of 0.5-0.6m, and the fingerling box is immersed in water at a depth of 0.8-1.6m. Embossed iron plates are laid and welded on the top of the rectangular frame to build an operating platform and aisle. The operating platform is 2.3m wide and the aisle is 0.5m wide.

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