Copper alloy insect killing device for marine fish cryptocaryon irritans disease

Abstract

The utility model provides a copper alloy insect killing device for marine fish cryptocaryon irritans disease, which comprises a movement slide rail arranged at an opening above a culture pond and a lifting insect killer slidably connected to the movement slide rail, the lifting insect killer comprises a copper alloy acting mechanism and a lifting frame mechanism used for connecting the copper alloy acting mechanism, and the lifting frame mechanism is connected with the copper alloy acting mechanism. The lifting frame mechanism comprises a sliding transverse rod and side connecting rods connected to the two ends of the sliding transverse rod, the ends of the side connecting rods are connected with the copper alloy acting mechanism, the lifting insect killer further comprises a controller module, and the controller module is in control connection with the lifting frame mechanism and used for controlling the sliding transverse rod to slide on the moving sliding rail. The copper alloy mechanism moves up and down along the side connecting rods, the copper alloy acting mechanism is controlled to move horizontally in a mode of being attached to the culture pond, insects are killed on the bottom face of the culture pond through copper alloy, the copper alloy acting mechanism accurately and controllably enters and exits pond water, it is guaranteed that copper ions in the culture pond water are always kept at the safe concentration, and toxicity caused by the fact that the concentration of the copper ions in the water is too high is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of marine aquaculture, in particular to a copper alloy insecticide device for treating Cryptocaryon irritans disease in marine fish. Background Art

[0002] In recent decades, with the continuous deepening of factory farming, the continuous expansion of farming scale and the continuous increase in farming density, the high-density farming model has led to frequent aquatic diseases, among which Cryptocaryon irritans disease is one of them, which has not only brought a heavy blow to the marine aquaculture industry, but also caused huge economic losses to farmers. Cryptocaryon irritans is a primary ciliated parasite that parasitizes the surface of marine bony fish. Except for cartilaginous fish and a few fish that have the ability to resist Cryptocaryon irritans, Cryptocaryon irritans can infect almost all marine bony fish, causing white spots visible on the fish surface such as skin, gills and fins, that is, marine fish "white spot disease". The disease is very contagious and has a very high morbidity and mortality rate. If it is not controlled in time, it will cause large-scale deaths of farmed fish in a short period of time, including highly economical aquaculture fish, such as grouper, large yellow croaker, and oval pomfret.

[0003] Copper alloys, as alloy materials with natural antibacterial properties, are widely used on surfaces where microbial growth needs to be controlled. Copper alloys can inhibit or kill a variety of pathogenic microorganisms such as parasites, bacteria, viruses, yeast, etc. by destroying cell membrane integrity, DNA degradation, abnormal protein expression, inactivation of metal proteins and other factors. Previous studies have also shown that copper alloys have significant effects in the prevention and control of aquaculture diseases. However, although copper alloys have a killing effect on most pathogenic microorganisms, the release of copper ions is difficult to control, and the content of copper ions in the breeding environment exceeds the threshold. While killing pests and diseases, it will be enriched in the body of the breeding organisms. Therefore, if copper alloys are used as the main insecticide control method for Cryptocaryon irritans, if they are not operated properly, it will also cause serious biosafety risks.

[0004] In summary, the current use of copper alloys to stimulate Cryptocaryon insecticidal effects is not controllable enough and still presents a major technical problem of potential safety hazards. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the insecticidal effect of using copper alloy to stimulate Cryptocaryon is not controllable enough and still has great potential safety hazards.

[0006] In order to solve the above problems, the utility model provides a copper alloy insecticide device for marine fish Cryptocaryon irritans disease, characterized in that it includes a moving slide rail arranged at an opening above a breeding pond, and a lifting insecticide slidably connected to the moving slide rail, the lifting insecticide includes a copper alloy action mechanism and a lifting frame mechanism for connecting the copper alloy action mechanism, the lifting frame mechanism includes a sliding cross bar, and side connecting rods connected to both ends of the sliding cross bar, and the ends of the side connecting rods are connected to the copper alloy action mechanism. The lifting insecticide also includes a controller module, which is controllably connected to the lifting frame mechanism and is used to control the sliding cross bar to slide on the moving slide rail, and the copper alloy mechanism to move up and down along the side connecting rod, so as to control the copper alloy action mechanism to move horizontally in contact with the breeding pond, so as to kill the Cryptocaryon irritans cysts at the bottom of the breeding pond.

[0007] The utility model provides a device suitable for copper alloy insecticide, which can flexibly operate the copper alloy to be immersed in the breeding pond through a movable control mechanism, so as to accurately control the time for the copper alloy to be immersed in the breeding seawater, thereby avoiding the copper alloy from being soaked in the breeding water for a long time and corroding, and the copper ions released due to the corrosion causing poisonous effects on the breeding organisms, and achieving a good contact insecticide effect under the premise of ensuring safety. The method is achieved by the following mechanism: a moving slide rail, a lifting frame mechanism and a copper alloy acting mechanism coordinated therewith are provided; the lifting frame mechanism is controlled to slide along the moving slide rail through the controller module hole so that the copper alloy acting mechanism is accurately pressed against the bottom surface of the breeding pond; the copper alloy acting mechanism is moved horizontally along the bottom of the breeding pond and rubbed against the bottom surface of the breeding pond under the joint action of the moving slide rail and the lifting frame mechanism so as to achieve insecticide control and control the diffusion of copper ions; after the insecticide operation is completed, the lifting frame mechanism can lift the copper alloy acting mechanism above the water surface to break away from contact so as to ensure that the copper ions in the breeding pond water are always maintained at a safe concentration, and to avoid excessive copper ion concentration in the water from being toxic to the breeding organisms; thus, the technical problem that the current use of copper alloys to stimulate the insecticide effect of Cryptocaryon is not controllable enough and still presents a large safety hazard is effectively solved.

[0008] As a preferred solution, the side of the side connecting rod is provided with a rack structure along its length direction, and the two ends of the sliding cross bar are provided with a driving motor and a transmission gear connected thereto, the transmission gear is meshed with the rack structure, and the driving motor is connected to the controller module for control, and the sliding cross bar is controlled to rise and fall along the side connecting rod by the controller module. The matching structure of the side connecting rod and the sliding cross bar is optimized, and the height position of the sliding cross bar relative to the side connecting rod can be accurately controlled through the meshing of the gear rack, so as to accurately control the position of the copper alloy action mechanism relative to the aquaculture water body.

[0009] As a preferred solution, it is characterized in that a slider is provided in the middle area of ​​the sliding crossbar, the sliding crossbar is slidably matched with the moving slide rail through the slider, the sliding driver is connected to the slider position, the sliding driver is control-connected with the controller module, and the sliding crossbar is controlled by the controller module to slide along the moving slide rail to control the copper alloy action mechanism to move in contact with the bottom surface of the breeding pond. The sliding matching mode between the sliding crossbar and the moving slide rail is optimized to accurately control the copper alloy action mechanism to slide back and forth on the bottom plane in the breeding pond, thereby meeting the requirements of insecticide and controlling the diffusion of copper ions.

[0010] As a preferred solution, the copper alloy action mechanism includes two rollers parallel to each other, a roller bracket is arranged between the two rollers, and the copper alloy action mechanism also includes a copper alloy skin connected between the two rollers. A preferred copper alloy action mechanism design is provided, in which the copper alloy skin is supported by two rollers, and the structure can effectively increase the contact surface size between the copper alloy and the bottom of the breeding pond, thereby ensuring the insecticidal effect of the copper alloy action mechanism.

[0011] As a preferred solution, the roller drive is connected to an insecticidal drive motor that drives it to rotate, and the insecticidal drive motor is connected to the controller module. The controller module controls the roller to rotate and drives the copper alloy skin supported by it to move to increase contact with seawater. Based on the structure of the above design, a drive design for the rotation of the roller is further provided. Through uninterrupted rotation of the roller, the copper alloy skin is ensured to be always in close contact with the bottom of the breeding pond, which greatly improves the insecticidal effect on the bottom of the pond that is easily stimulated by the attachment of Cryptocaryon spp.

[0012] As a preferred solution, the controller module is located at the outer edge of the upper opening of the breeding pond and at one end of the moving slide rail. The position distribution of the controller module around the breeding pond is optimized to avoid corrosion of electrical components by seawater as much as possible and to shorten the control circuit as much as possible to reduce the cost of the device.

[0013] As a preferred solution, the controller module is connected to an interactive module for inputting preset instructions to control the preset control actions of the controller module. The design of the controller module is optimized, and the instruction input can be simply realized through the interactive module, which is convenient for the automatic control of the copper alloy water insecticide process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a copper alloy insecticide device for treating Cryptocaryon irritans in marine fish provided by the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure of the copper alloy insecticide device used for marine fish Cryptocaryon irritans disease in the insecticide working state;

[0016] Figure 3 for Figure 1 A schematic diagram of the lifting frame structure of the copper alloy insecticide for treating Cryptocaryon irritans in marine fish;

[0017] Figure 4 for Figure 1 A side view structural schematic diagram of the copper alloy action mechanism of the copper alloy insecticide device used for treating Cryptocaryon irritans disease in marine fish.

[0018] in, Figure 1-Figure 4 middle:

[0019] 1. Motion slide rail; 2. Side connecting rod; 3. Sliding cross bar; 4. Copper alloy action mechanism; 4-1. Roller; 4-2. Copper alloy skin; 4-3. Rubber sleeve; 5. Controller module; 6. Interaction module. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] Before explaining the working principle of the present invention in detail, the description of the present invention needs to be further explained: In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a welding connection 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.

[0023] refer to Figure 1-Figure 4 The following embodiments are described, Figure 1 It is a schematic diagram of the overall structure of a copper alloy insecticide device for treating Cryptocaryon irritans in marine fish; Figure 2 for Figure 1A schematic diagram of the structure of the medium copper alloy insecticide device in the insecticide working state; Figure 3 for Figure 1 Schematic diagram of the lifting frame structure of the copper alloy insecticide device; Figure 4 for Figure 1 Schematic diagram of the side view of the copper alloy action mechanism.

[0024] The utility model provided in this embodiment provides a copper alloy insecticide device for treating cryptocaryonosis of marine fish, comprising a moving slide rail 1 arranged at an opening above a breeding pond, and a lifting insecticide slidably connected to the moving slide rail 1, the lifting insecticide comprising a copper alloy action mechanism 4 and a lifting frame mechanism for connecting the copper alloy action mechanism 4, the lifting frame mechanism comprising a sliding cross bar 3, and side connecting rods 2 connected to both ends of the sliding cross bar 3, each end of the side connecting rod 2 being connected to the copper alloy action mechanism 4, the lifting insecticide also comprising a controller module 5, the controller module 5 being control-connected to the lifting frame mechanism, and being used to control the sliding cross bar 3 to slide on the moving slide rail 1, and the copper alloy mechanism to move up and down along the side connecting rod 2.

[0025] The present embodiment provides a device suitable for copper alloy insecticide. The copper alloy can be flexibly operated to be immersed in the breeding pond through an active control mechanism, so as to accurately control the time for the copper alloy to be immersed in the breeding seawater so as to control the concentration of copper ions in the water. Under the premise of ensuring safety, a good contact insecticide effect is achieved. Specifically, a moving slide rail, a lifting frame mechanism and a copper alloy action mechanism matched therewith are provided. The lifting frame mechanism is controlled to slide along the moving slide rail through a controller module hole so as to accurately close the copper alloy action mechanism to the bottom surface of the breeding pond. Under the joint action of the moving slide rail and the lifting frame mechanism, the copper alloy action mechanism is translated along the bottom of the breeding pond and rubs the bottom surface of the breeding pond so as to achieve contact insecticide. The lifting frame mechanism can accurately and controllably immerse the copper alloy action mechanism in the water or lift it above the water surface through the control and sliding cooperation of the sliding cross bar and the side connecting rod, so as to ensure that the copper ions in the breeding pond water are always maintained at a safe concentration, and avoid the toxicity of the copper ions in the water to the breeding organisms due to the excessively high concentration of copper ions. Therefore, the technical problem that the current use of copper alloy to stimulate the insecticide effect of Cryptocaryon spp. is insufficient in controllability and still has a large safety hazard is effectively solved.

[0026] It should be noted that the life cycle of Cryptocaryon irritans has no intermediate host. The host parasitic stage and free-living stage mainly include four stages: trophozoite, cyst precursor, cyst and larvae: the trophozoite parasitizes on the body surface of the host, feeds on tissues and cells, and after maturity, it detaches from the host to form a cyst precursor in the free movement stage; the cyst precursor crawls on the bottom of the pool, and after 2-8 short periods of time, the cyst forms a cyst attached to the bottom of the pool; the cyst will be expelled from the cyst with more than 300 irritans larvae after a series of unequal binary fissions, and infect the host again, which is also the main cause of fish death during the breeding process (secondary outbreak). Therefore, in order to effectively control the outbreak of Cryptocaryon irritans, the primary task is to cut off the life cycle of Cryptocaryon irritans by some method and prevent the re-outbreak of Cryptocaryon irritans. However, the cyst is the longest stage in the entire life cycle, has the characteristics of being easy to handle when attached to the bottom of the pool, and can give the breeder enough processing time. Therefore, the cyst stage has become a target for a large number of studies on the prevention and control of Cryptocaryon irritans.

[0027] At present, the prevention and control methods for this disease mainly include physical prevention, chemical prevention, Chinese herbal medicine prevention, and immunological prevention. Physical prevention methods mainly use some physical factors such as freshwater immersion, heat treatment, rotational breeding, or ozone treatment of water bodies for treatment. When using physical methods, there will be problems such as difficult to control conditions and ineffective effects. Chemical prevention mainly uses formalin, sodium salinomycin, copper sulfate and other drugs alone or in combination to treat irritating nucleus disease. Although chemical methods have achieved good results, they are not suitable for large water bodies and cause pollution to the breeding environment. They are toxic to breeding organisms and have high breeding costs, which greatly reduces the efficacy. Chinese herbal medicine prevention and control methods mainly use plant extracts to soak diseased fish bodies to achieve the effect of prevention and control. The prevention and control of irritating nucleus by Chinese herbal medicine is currently limited to the experimental stage. To understand the therapeutic mechanism of Chinese herbal medicine, further research is needed. Immunological methods use the fish's own immune mechanism and anti-motor antigen proteins or genes to resist insects. However, immune prevention and control has problems such as unstable immune effects, difficult operation of immune methods, and difficult vaccine production. Therefore, although there are many studies on the prevention and treatment of Cryptocaryonosis irritans, an effective prevention and treatment method that is simple to operate, economical, practical, and environmentally friendly has not yet been found. Cryptocaryonosis irritans has become one of the most serious technical problems in the prevention and control of marine fish aquaculture in my country and even in the world. Finding a safe and effective treatment method for Cryptocaryonosis irritans is the key to reducing the economic losses of farmers.

[0028] The copper alloy roller 4-1 contact insecticide used in the copper alloy device is a physical method. Compared with commonly used chemical treatments, it will not cause water pollution and will not be toxic to fish. Compared with other physical methods, it has the characteristic of being separable from the aquaculture water, which can ensure the biological safety of farmed fish.

[0029] The copper alloy insecticide device avoids the shortcomings of uncontrollable treatment conditions and poor effects in the past when in use, and can be separated from the aquaculture water when not in use. It is easy to operate, has strong operability and significant effects in the prevention and control of Cryptocaryon irritans disease, is energy-saving and low-consumption, and is environmentally friendly and pollution-free.

[0030] Another preferred design is to set an automatic drain valve at the bottom of the breeding pond, which can prevent the copper ion concentration in the breeding pond from being too high through the cooperation of the copper alloy action mechanism and the automatic drain valve.

[0031] In the technical solution provided by this embodiment, a rack structure is provided on the side of the side connecting rod 2 along its length direction, and a driving motor and a transmission gear connected thereto are provided at both ends of the sliding cross bar 3, the transmission gear is meshed with the rack structure, and the driving motor is controlled and connected with the controller module 5, and the sliding cross bar 3 is controlled to rise and fall along the side connecting rod 2 by the controller module 5. The matching structure of the side connecting rod and the sliding cross bar is optimized, and the height position of the sliding cross bar relative to the side connecting rod can be accurately controlled through the meshing of the gear rack, so as to accurately control the position of the copper alloy action mechanism relative to the aquaculture water body.

[0032] In the technical solution provided in this embodiment, a slider is provided in the middle area of ​​the sliding crossbar 3, and the sliding crossbar 3 is slidably matched with the moving slide rail 1 through the slider, and a sliding driver is connected to the slider position, and the sliding driver is controlled and connected with the controller module 5, and the sliding of the sliding crossbar 3 along the moving slide rail 1 is controlled by the controller module 5. The sliding matching mode between the sliding crossbar and the moving slide rail is optimized to accurately control the planar spatial position of the copper alloy action mechanism in the breeding pond, so as to achieve the requirement of controlling the diffusion of copper ions.

[0033] In the technical solution provided in this embodiment, the copper alloy action mechanism 4 includes two rollers 4-1 parallel to each other, a roller bracket is arranged between the two rollers 4-1, and the copper alloy action mechanism 4 also includes a copper alloy skin 4-2 connected between the two rollers 4-1. A preferred copper alloy action mechanism design is provided, in which the copper alloy skin is supported by two rollers, and the structure can effectively increase the contact surface between the copper alloy and the surrounding seawater, thereby ensuring the killing effect of Cryptocaryon irritans cysts.

[0034] In the technical solution provided in this embodiment, the roller 4-1 is connected to an insecticidal drive motor that drives it to rotate, and the insecticidal drive motor is connected to the controller module 5. The controller module 5 controls the roller 4-1 to rotate and drives the copper alloy skin 4-2 supported by it to move to increase contact with seawater. On the basis of the structure of the above design, a drive design for the rotation of the roller is further provided. Through uninterrupted rotation of the roller, it is ensured that the copper alloy skin is always relatively displaced with the surrounding seawater, and the copper alloy skin is attached to the bottom of the breeding pond through the roller. Through the friction of the copper alloy on the bottom of the pond, the insecticidal effect on the pond bottom that is easily stimulated by the attachment of Cryptocaryon spp. is greatly improved.

[0035] In the technical solution provided in this embodiment, the controller module 5 is located at the outer edge of the upper opening of the breeding pond and at one end of the moving slide rail 1. The position distribution of the controller module around the breeding pond is optimized, firstly, to avoid the corrosion of the electrical components by seawater as much as possible, and secondly, to shorten the control circuit as much as possible to reduce the device cost.

[0036] In the technical solution provided by this embodiment, the controller module 5 is connected to the interaction module 6, which is used to input preset instructions to control the preset control actions of the controller module 5. The design of the controller module is optimized, and the instruction input can be simply realized through the interaction module, which is convenient for the automatic control of the copper alloy water insecticide process.

[0037] The installation and use process of the copper alloy insecticide device is as follows:

[0038] S1 Determine the optimum metal composition and content of copper foil;

[0039] Copper alloy sheets with different compositions were selected to evaluate their insecticidal performance and seawater corrosion resistance. The most suitable type of copper foil in the copper alloy insecticidal device was found to be naval copper with a copper content of 68% by using single factor analysis of variance and least significant difference method.

[0040] S2 constructs the copper alloy action mechanism;

[0041] The roller 4-1 is preferably wrapped with a rubber sleeve 4-3 so that the copper alloy action mechanism 4 can fully contact the bottom of the pool. The copper alloy skin 4-2 is wrapped around the outside of the roller 4-1 and rolls with the roller 4-1. The capsule is killed after the copper alloy skin 4-2 contacts the capsule. The baseline speed of the device is set to:

[0042]

[0043] For example, the bottom edge length of the device is 50 cm, the optimal killing time of the copper alloy material is 20 minutes, and the baseline speed of the device is 1.5 m / h. The actual speed needs to be lower than the baseline speed of the device to ensure that the copper alloy skin has sufficient contact time with the cyst, thereby ensuring that Cryptocaryon irritans can be completely killed.

[0044] S3 During the epidemic season of Cryptocaryon irritans, the aquaculture water and the cultured marine fish shall be subjected to insecticide and disinfection treatment;

[0045] Start the power supply, set the opening time and closing time of the copper alloy action mechanism, the roller contacts the bottom of the pool and kills the cysts of Cryptocaryon irritans, blocking the life history of Cryptocaryon irritans, thereby avoiding the outbreak of Cryptocaryon irritans disease. Carry out copper alloy insecticide treatment once a day, and run for 20 minutes each time.

[0046] The copper alloy insecticide device of this embodiment is used to carry out infection and post-treatment experiments on Cryptocaryon irritans of seawater cultured large yellow croaker. The experimental process and results are as follows:

[0047] (1) 480 uninfected large yellow croaker samples were randomly selected and evenly divided into 4 groups (A, B, C, and D). Two groups (A and B) were continuously infected in the dark at a non-lethal concentration (40 worms / g fish) for 2 hours, and groups C and D were not infected. The 4 groups were cultured in different breeding ponds. Each group contained six replicates, each with 20 fish in each replicate, and different replicates were cultured in different breeding ponds.

[0048] (2) At 18:00 on the evening of the second day after infection, the copper alloy device was turned on for groups A and C to irradiate and kill the cysts on the bottom of the pond. Except for the different treatment conditions, the other daily breeding and care conditions of the four groups were the same. Three parallels in each group were used to calculate the survival rate, and the other three parallels were used to record the relative infection intensity (RII) and relative cyst number (RTN) after 14 days.

[0049] Survival rate (%) = number of live fish at the end of the test / number of live fish at the beginning of the test × 100%

[0050] Relative infection intensity (RII) = number of white spots on the left pectoral fin of the diseased fish / fish weight (g)

[0051] Relative cyst number (RTN) = number of cysts / [S culture pond / (3×S culture dishes)] / number of fish / fish weight

[0052] (3) Results: The results of this example are shown in Tables 1 and 2.

[0053] Table 1: Survival of large yellow croaker

[0054]

[0055]

[0056] Table 1 Note: The yellow croakers in experimental groups A and B were infected with Cryptocaryon irritans; the yellow croakers in groups C and D were not infected with Cryptocaryon irritans; the copper alloy insecticide was installed in all four groups, but only groups A and C were turned on. Different lowercase letters in each column of the table indicate significant differences in the number of fish survival at the same time. The data in the table are: mean ± standard deviation.

[0057] As shown in Table 1, from the 1st day to the 3rd day, there was no massive death of fish in groups A, B, C, and D, and there was no significant difference in the survival rate of the fish (P>0.05); in group B, which was infected with Cryptocaryon irritans and did not turn on the copper alloy insecticide device, the survival rate of the fish decreased by more than 50% on the 4th day, and the survival rate was significantly lower than that of the other two groups (P<0.05); on the 5th day, all the infected fish in group B died, and the survival rate of the infected fish in group A, which was infected and turned on the copper alloy device, was not significantly different from that of the uninfected groups C and D (P>0.05), and remained above 80%; until the end of the experiment on the 14th day, the survival rate of groups A and C was still around 75% (P>0.05).

[0058] Table 2: Relative infection intensity (RII) and relative cyst number (RTN) of Pseudosciaena irritans infection

[0059]

[0060]

[0061] Table 2 Note: The large yellow croakers in experimental groups A and B were infected with Cryptocaryon irritans; the large yellow croakers in groups C and D were not infected with Cryptocaryon irritans; the copper alloy insecticide was installed in all four groups, but only groups A and C were turned on. Different lowercase letters in each column of the table indicate significant differences in the number of fish surviving at the same time. The data in the table are: mean ± standard deviation.

[0062] The relative infection intensity (RII) reflects the number of trophozoites on the left pectoral fin per gram of fish, representing the infection intensity of Cryptocaryon irritans. As shown in Table 2, two peaks of RII appeared in groups A and B during the experiment, on the third and seventh days after infection (Table 2). At the first peak, there was no significant difference in RII between groups A and B (P>0.05); on the fourth and fifth days, the trophozoites gradually matured and fell off on the fish to form cysts, which gathered at the bottom of the barrel. However, from the sixth to the eighth day, the number of trophozoites on the fish in group B soared several dozen times again, which was the result of secondary infection of Cryptocaryon irritans. At the same time, in group A, where the copper alloy disinfection device was turned on, only a very small number of trophozoites were observed on the infected fish, and there were no trophozoite cells on the fish on the eighth day after infection. After maturation, the trophozoite cells actively detach from the host to form cysts and gather at the bottom of the breeding pond. The relative cyst number (RTN) reflects the number of cysts per gram of fish body. In Group B without copper alloy disinfection device and Group A with copper alloy disinfection device, the relative cyst number (RTN) and relative infection intensity (RII) showed similar trends (Table 2). On the first day of infection, the RTN of both Groups A and B was very low. The second peak of Group B appeared on the ninth day, which was much higher than the first peak. On the contrary, the number of cyst precursors and cysts in Group A was very low after the fifth day, and no cysts were found after the ninth day.

[0063] In this experiment, the number of parasites in the fish of group B, which did not start the copper alloy disinfection, increased significantly after one week, and all died, indicating that the secondary outbreak of Cryptocaryon irritans caused a large-scale outbreak of farmed fish. On the contrary, the number of parasites in group A, which started the copper alloy disinfection, decreased significantly after one week, indicating that the device and method of the utility model can effectively prevent the secondary outbreak of Cryptocaryon irritans disease and have significant significance for the prevention and treatment of Cryptocaryon irritans.

[0064] In summary, the copper alloy disinfection device described in the utility model can prevent and control the outbreak of Cryptocaryon irritans disease during the breeding process of marine yellow croaker.

[0065] The above experiments and results show that the copper alloy insecticide device of this embodiment is highly operational and effective in preventing and treating Cryptocaryonosis, and is environmentally friendly and pollution-free. The use of the copper alloy insecticide device of this embodiment can effectively prevent and treat the outbreak of Cryptocaryonosis during the breeding of marine yellow croaker, and the copper alloy disinfection will not cause harm and side effects to the yellow croaker, and can cure the farmed fish infected with Cryptocaryonosis.

[0066] In summary, the copper alloy insecticide device of the present embodiment is used in the prevention and treatment of Cryptocaryon irritans disease in closed seawater aquaculture and indoor recirculating aquaculture. Compared with traditional marine fish Cryptocaryon irritans disease prevention and control measures, it has the following advantages: the copper alloy roller contact insecticide adopted by the copper alloy device of the present embodiment is a physical method. Compared with the commonly used chemical treatment method, it will not cause water pollution and will not be toxic to the fish body. Compared with other physical methods, it has the advantage of being able to be separated from the aquaculture water and ensuring the biological safety of the farmed fish.

[0067] The copper alloy insecticide device avoids the shortcomings of uncontrollable treatment conditions and poor effects in the past when in use, and can be separated from the aquaculture water when not in use. It is easy to operate, has strong operability and significant effects in the prevention and control of Cryptocaryon irritans disease, is energy-saving and low-consumption, and is environmentally friendly and pollution-free.

[0068] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A copper alloy insecticide device for treating Cryptocaryon irritans in marine fish, characterized in that: The invention comprises a moving slide rail (1) arranged at an opening above a culture pond, and a lifting insect killer slidably connected to the moving slide rail (1), the lifting insect killer comprising a copper alloy action mechanism (4) and a lifting frame mechanism used to connect the copper alloy action mechanism (4), the lifting frame mechanism comprising a sliding cross bar (3) and side connecting rods (2) connected to both ends of the sliding cross bar (3), the ends of the side connecting rods (2) being connected to the copper alloy action mechanism (4), the lifting insect killer also comprising a controller module (5), the controller module (5) being control-connected to the lifting frame mechanism and used to control the sliding cross bar (3) to slide on the moving slide rail (1), and the copper alloy mechanism to move up and down along the side connecting rod (2), so as to control the copper alloy action mechanism (4) to move horizontally in contact with the culture pond, and to kill insects on the bottom surface of the culture pond through the copper alloy.

2. The copper alloy insecticide device for treating Cryptocaryon irritans in marine fish according to claim 1, characterized in that: The side of the side link (2) is provided with a rack structure along its length direction, and the two ends of the sliding cross bar (3) are provided with a driving motor and a transmission gear connected thereto, the transmission gear is meshed with the rack structure, and the driving motor is connected to the controller module (5) for control, and the sliding cross bar (3) is controlled by the controller module (5) to rise and fall along the side link (2).

3. The copper alloy insecticide device for treating Cryptocaryon irritans in marine fish according to claim 2, characterized in that: A slider is provided in the middle area of ​​the sliding crossbar (3), and the sliding crossbar (3) is slidably matched with the moving slide rail (1) through the slider. The slider is connected to a sliding driver, and the sliding driver is control-connected to the controller module (5). The sliding of the sliding crossbar (3) along the moving slide rail (1) is controlled by the controller module (5) to control the copper alloy action mechanism (4) to move in contact with the bottom surface of the culture pond.

4. The copper alloy insecticide device for treating Cryptocaryon irritans in marine fish according to any one of claims 1 to 3, characterized in that: The copper alloy action mechanism (4) comprises two rollers (4-1) parallel to each other, a roller (4-1) bracket is arranged between the two rollers (4-1), and the copper alloy action mechanism (4) further comprises a copper alloy skin (4-2) connected between the two rollers (4-1).

5. The copper alloy insecticide device for treating Cryptocaryon irritans in marine fish according to claim 4, characterized in that: The roller (4-1) is drivingly connected to an insecticidal drive motor for driving it to rotate. The insecticidal drive motor is controllably connected to the controller module (5). The controller module (5) controls the roller (4-1) to rotate, driving the copper alloy skin (4-2) supported by it to move and increase contact with the bottom surface of the culture pond and seawater.

6. The copper alloy insecticide device for treating Cryptocaryon irritans in marine fish according to claim 4, characterized in that: The controller module (5) is located at the outer edge of the upper opening of the culture pond and at one end of the moving slide rail (1).

7. The copper alloy insecticide device for treating Cryptocaryon irritans in marine fish according to claim 4, characterized in that: The controller module (5) is connected to an interaction module (6) for inputting preset instructions to control the preset control action of the controller module (5).

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