KR101174290B1 - Apparatus and method for rearing sea cucumber - Google Patents

Abstract

The present invention provides a land tank cultured sea cucumber culture apparatus using a breeding water circulation filtration device and a land tank cultured sea cucumber culture method using the same.
The sea cucumber culture apparatus of the present invention includes a culture tank that allows the sea cucumber to be spatially separated from the bottom of the contaminated water by installing a diaphragm in the tank considering the physiological and ecological characteristics of the sea cucumber. In addition, the circulating filtration method of breeding water is recirculated by filtration using a biological filtration method. In addition, the sea cucumber culture apparatus of the present invention is capable of controlling the water temperature of the breeding water using the water temperature control device provided.
The sea cucumber culture device solved the problem of the bottom of the sea cucumber by combining the farming tank, breeding water circulation filtration device and water temperature control device of a special structure in consideration of both the drainage problem of breeding water and the growth of sea cucumber. Production is possible.

Description

Land tank type sea cucumber farming apparatus using breeding water circulation filtering device and land tank type sea cucumber farming method using the same {APPARATUS AND METHOD FOR REARING SEA CUCUMBER}

The present invention relates to a land aquarium sea cucumber culture device. More specifically, it relates to a sea cucumber culture apparatus using a method of filtering and circulating breeding water to be resupplied. In addition, the present invention relates to a method for farming sea cucumbers in a culture tank using the sea cucumber culture apparatus.

Sea cucumber is a representative health food, and unlike other aquaculture organisms, sea cucumber is a promising aquaculture species that has an unlimited market for export to China. In particular, as the functionality of bioactive substances in sea cucumber is highlighted, demand is expected to increase further. However, sea cucumbers have a scarcity of resources that temporarily disappears in nature when they enter the bottom of the ecological physiological high water temperature, and because of the limited harvesting before and after the spawning season, the price fluctuations and production volume do not meet demand. I can't. Many breeding techniques are being developed due to the imbalance of supply and demand, but the current level of technology is at the stage of seed production, and the seedlings produced here are limited to the discharge business for resource development of coastal fishing villages. In order for the sea cucumber aquaculture industry to become a scale industry, it is necessary to secure a stable mass of quantities from production to sales.

Currently produced seedlings are connected to seedling farming for artificial seedling discharge business for resource development of coastal fishing villages or to open field farming by festival farming. Since these farming methods are preservative farming methods that rely on natural productivity not supplying food, they can never exceed their natural productivity, and even though the number of stocks increases, the amount of natural food is limited. Natural productivity cannot exceed 300 ~ 400kg / ha (average 1kg / 33m ² ). The same is true for the festive style. It is easy to escape, easy to catch, and easy to prevent, and is exposed to pirates such as starfish because it is in the natural environment. Cannot be produced. It is difficult to expect two to three times more production than unpaid farming methods. Since these preservative farming methods are open environment, all the environmental factors necessary for sea cucumber growth are exposed to nature. Sea cucumbers grow vigorously at water temperatures of 18 to 20 ° C, but they rarely eat food at high water temperatures. Therefore, the digestive tract degenerates, and when the water temperature is 25 ℃ or more, the digestive tract becomes small, which is the minimum. Because of the ecological and physiological characteristics of sea cucumber, not only the growth period is short in Korea's natural environment, but the technology to overcome this is not developed.

Alternative land-based farming methods have been proposed, but only a few have been tried. Onshore aquaculture includes high-density farming, continuous supply of complete blended feeds, water pollution from large amounts of excreta, fish suspensions caused by organic suspended solids by powdered feed, which is characteristic of sea cucumber feeds, lack of overdraft prevention technology, and maintenance of possible water temperature. There is an urgent need for technology development to solve problems caused by energy costs.

The present invention has been made to solve the above-mentioned problems, the object of the present invention is to provide a land tank sea cucumber culture apparatus to prevent the sea cucumbers or the growth stops at high temperature in summer. In addition, the present invention is not only capable of controlling the temperature of the breeding water, but also the sea cucumber culture tank designed to separate and discharge the pollutant quickly and the breeding water discharged from the sea cucumber culture tank in a physical and biological manner to re-reconstructed into a sea cucumber culture tank It is an object of the present invention to provide a sea cucumber culture device using a circulating filtration device to feed water. Lastly, an object of the present invention is to provide a method for aquaculture of sea cucumbers using the sea cucumber culture apparatus.

The present invention tank body 108; A drain hole 104 formed in the tank body 108; It is provided in the interior space of the tank body 108 and the diaphragm 101 formed with a plurality of drainage holes; provides a breeding water circulation filtration type sea cucumber culture apparatus including a culture tank 100.

The drainage hole formed in the diaphragm 101 is 2 mm to 10 mm in diameter.

The culture tank 100 is vertically penetrated through the diaphragm so that one end is connected to the drain port 104 of the culture tank 100 is installed up and down on the inner space of the tank, a number of drainage holes, breeding water drainage The auxiliary pipe 105 is further included, and the height of the top of the breeding water drainage auxiliary pipe 105 is formed to be lower than the height of the top of the culture tank (100).

The culture tank 100 further includes a water flow generating motor 102 for generating water flow in the breeding water in the tank.

The breeding water circulation filtration sea cucumber culture apparatus of the present invention is a solids precipitation tank 110 is connected through the culture water tank 100 and the circulation pipe 200; A biological filtration tank 120 connected to the solid settling tank and the circulation pipe 200; And a temperature regulating device 140.

The present invention also provides a sea cucumber culture method using the breeding water circulation filtered sea cucumber culture apparatus. In the sea cucumber culture method, the temperature of the breeding water in the culture tank 100 is 10 ℃ to 19 ℃. In addition, the recovery rate of the breeding water is 10 to 50 cycles per day.

Sea cucumber ( Stichopus Japonicus ) is a kind of echinoderm, such as starfish and sea urchins. It lives in all coasts of Korea. About 1,500 species inhabit the world, and 4 and 14 species are known in Korea. Among them, about 80 species of edible species are known, and sea cucumbers with protruding protrusions are preferred for edible use.

The sea cucumber is elongated in shape. It has a mouth open at the front end of the body, a number of tentacles around it, and an anus at the back end. Sea cucumber is a tentacle around the mouth that collects sand and pearls from the seabed and sends them to the digestive tract, collects and absorbs only organic matter, and sends sand and pearl back through the anus. In addition, the belly of the sea cucumber has a lot of tubules (管 足), using it to crawl and move around the seabed, breathing through the respiratory tract (呼吸 樹).

The habitat of sea cucumbers is mainly the bottom of the sea of 20m and the coastal reefs and gravel fields. Sea cucumbers are unusually sleepy aquatic animals, and the water temperature is vigorous at 19 ° C or lower, growth stops at 20 ° C or higher, and when the temperature reaches 24 ° C or higher, the sea cucumber enters the complete bottom (夏眠).

Depending on the color, sea cucumbers are sometimes called red sea cucumbers, black sea cucumbers, and blue sea cucumbers.They are mostly the same species.The red sea cucumbers that eat mainly red algae (紅 藻類) attached to the rocks in the ocean are reddish. Sea cucumbers that eat organic food mainly have a dark green or dark color, and the color of the surface varies depending on their preferred food and habitat. Among them, red sea ginseng (aka red ginseng) has a low production rate and many people look for it because its name is similar to dried red ginseng (紅 蔘), which is higher than other sea ginseng.

Commonly used foods include Schopchopus japonicus, Black sea cucumber (Paraastichopus nigripunctatus), Pineapple sea cucumber (Thelenota ananas), and Gwangsam (Cucumaria frondosa japonica), which are found in the coastal areas of Korea. It is distributed in the square sea cucumber (Stichopus chloronotus).

There is no particular limitation on the type of sea cucumber cultured by applying the sea cucumber farming apparatus and the sea cucumber farming method using the same, and generally targets species that require farming as food.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of a breeding water circulation filtration sea cucumber culture apparatus according to a preferred embodiment of the present invention.

The sea cucumber culture apparatus according to the embodiment, the tank body 108; A drain hole 104 formed in the tank body 108; And a diaphragm 101 installed in the inner space of the tank body 108 and having a plurality of drainage holes formed therein.

Figure 2 shows an enlarged cross section of the culture tank (100). The tank inner space is provided with a diaphragm 101 having a plurality of drainage holes. The diaphragm may be provided by crossing the space inside the tank. The diaphragm 101 serves to prevent the sea cucumber from being in direct contact with the bottom of the tank by placing the sea cucumber on the upper portion of the diaphragm 101. As described above, sea cucumbers, unlike other aquatic farming animals, which live in a rich breeding water, have a habit of being attached to the attachment substrate. If the diaphragm 101 is not provided as described above, sea cucumbers may also be attached to the bottom of the tank. In this case, solid soil, such as feces of sea cucumbers or food wastes, is deposited on the bottom of the culture tank 100, which may adversely affect the growth of sea cucumbers attached to the bottom. Therefore, by installing the diaphragm 101 transversely with respect to the bottom of the tank at a position separated from the bottom of the tank by limiting the habitat portion of the sea cucumber only to the upper portion of the diaphragm 101 to spatially deposit the solid soil deposited on the sea cucumber and the bottom Brings the effect of separating.

Hereinafter, in the present invention, the soil is a substance (dissolved soil) that is dissolved in the breeding water, such as excrement of sea cucumber, suspended suspended matter generated from the excreta, residues of sea cucumber breeding feed or dissolved organic matter. , Which refers to a large or fine solids dispersed (suspended or suspended) (solid soil), which may adversely affect the growth of sea cucumber and need to be filtered.

In addition, the diaphragm 101 prevents sea cucumbers from adhering to the bottom of the tank, and at the same time, the breeding water and the contaminants in the tank circulate through the upper and lower portions of the diaphragm 101. Or it is formed a number of holes of the appropriate size to be discharged from the culture tank (100). The size of the drainage hole formed in the diaphragm 101 is about 2 mm or more in consideration of the size of the dirt passed. If the size of the drain hole is too large, there is a risk that the raised sea cucumber falls to the bottom, and the size of the drain hole is preferably 2 mm to 10 mm, preferably 3 mm to 7 mm, more preferably 3 mm to 5 mm. The material of the diaphragm 101 is not particularly limited, but is preferably made of synthetic resin such as polyethylene, polypropylene, or acrylic in consideration of the installation place of seawater.

According to one embodiment of the invention, the diaphragm 101 may be composed of a mesh 106. In addition, the mesh 106 is more preferably a seamless netless 106 to prevent damage to the shell of the sea cucumber. When the diaphragm 101 is the mesh 106, the diaphragm 101 has a plurality of drainage holes formed to support the mesh 106 and the mesh 106 below the mesh 106. The support 107 may be integrally configured. The size of the drainage hole formed in the support 107 is larger than the size of the drainage hole formed in the mesh 106. The material of the support 107 is not particularly limited, but is preferably made of synthetic resin such as polyethylene, polypropylene or acrylic in consideration of the installation place of the sea.

FIG. 3 illustrates a specific embodiment of the diaphragm 101 integrally formed with a mesh 106 and a support 107 having a drainage hole formed therein for supporting the mesh 106 and positioned below the mesh 106. It is shown.

One or more diaphragms 101 may be installed in the tank. As described for the purpose, sea cucumber has a habit of growing on the substrate. Therefore, when the diaphragm 101 is additionally installed, the area of the attachment substrate of the sea cucumber increases, so that the storage density of the sea cucumber that can be bred in the culture tank 100 is increased.

The natural discharge of the breeding water or soil may be disturbed by the diaphragm 101. The diaphragm 101 is designed so that the movement such as the mesh 106 is not disturbed in consideration of the breeding water and the polluted water, but the drainage path is blocked as much as the area of the mesh 106 is installed except the area of the mesh.

Therefore, the sea cucumber culture apparatus of the present invention may be provided with a breeding water drainage auxiliary pipe 105, a plurality of drainage holes are formed in the wall surface penetrating the diaphragm 101 up and down inside the tank. One end of the drainage auxiliary pipe 105 is connected to the drain port 104 provided on the bottom of the water tank. The drainage auxiliary pipe 105 may be provided to secure a drainage path other than the passage of the diaphragm 101, thereby substantially eliminating the drainage caused by the diaphragm 101. The size or shape of the drainage hole formed in the drainage auxiliary pipe 105 may be appropriately selected by those skilled in the art to which the present invention pertains in consideration of the size of the soil to be discharged and the size of the breeding sea cucumber. If the size of the drain hole is too large, there is a risk of breeding sea cucumbers into the drain pipe, the size of the drain hole is 2mm to 10mm, preferably 3mm to 7mm, more preferably 3mm to 5mm. The material of the drainage auxiliary pipe 105 is not particularly limited, but is preferably made of synthetic resin such as polyethylene, polypropylene, or acrylic in consideration of the installation place of the seawater.

In addition, the drainage auxiliary pipe 105 may be installed lower than the height of the tank in which the auxiliary pipe 105 is installed to prevent the breeding water in the tank from overflowing to the culture tank 100.

Aquaculture water tank 100 of the present invention is provided with a drain hole 104 on the bottom surface is provided with a drain hole 104 for the discharge of breeding water and soil. The bottom of the water tank may be inclined about the drain hole 104 so that drainage or contamination of the breeding water may be naturally caused by gravity. However, the natural discharge of the breeding water or soil may be disturbed by the diaphragm 101. The diaphragm 101 is designed so that the movement such as the mesh 106 is not disturbed in consideration of the movement of breeding water and contaminants, but the drainage path is blocked by excluding the total area of the drainage hole of the installed diaphragm 101. to be. It is necessary to artificially generate water flow in order to solve such problems caused by installing the diaphragm 101 and to promptly and effectively discharge the polluted breeding water and soil. Therefore, the aquaculture tank 100 according to the present invention is provided with a motor 102 for generating water flow. The water flow generated by the motor 102 increases the discharge speed of the breeding water, and the increased flow rate increases the water pressure applied to the diaphragm 101 by the breeding water. Accordingly, solids that do not pass through the diaphragm 101 but settle on the diaphragm 101 may be broken into small grains such that they may pass through the drainage holes of the diaphragm 101 by the increased water pressure or may be caused by the increased water pressure. By changing the shape and passing through the drain hole, it is possible to eliminate the drainage blocking effect due to the diaphragm 101.

The sea cucumber culture apparatus of the present invention is a solids settling tank 110 for separating and sedimenting the precipitated solids in the breeding water for circulation filtration of the breeding water; A biological filtration tank 120 for biologically filtering the breeding water from which the solids have been removed to convert ammonia nitrogen to nitrate nitrogen; And a temperature regulating device 140. The culture water tank 100, the solid precipitate tank 110 and the biological filtration tank 120 may be connected through a circulation pipe (200).

The solid settling tank 110 is for separating and sedimenting sedimentary soils, that is, solids in the breeding water drained from the aquaculture tank (100), and prefilter (prefilter) to remove the first settable solids It serves as. The settling tank is preferably inclined about the center portion on the bottom in order to effectively remove the precipitated solids.

In addition, a solids removal device (not shown) to which the dust collection method by water flow is applied may be further provided to the solids precipitation tank 110 for effective removal and separation of solids. Hydrocyclone can be used as the solids removal device in this manner. The hydrocyclone is a solids removal device applying centrifugation to separate solids from introduced breeding water using a strong centrifugal force induced inside the device. This is a simple form that depends only on the rotational force of the stream and does not have a special additional device or mechanical part, so that the stream formed by the stream generating motor 102 provided in the aquaculture tank 100 can be used.

Breeding water discharged from the solid settling tank 110 is then transferred to the biological filtration tank 120 and the precipitated solids are discharged.

The biological filtration tank 120 is for removing TAN (ammonia nitrogen) in the breeding water. Since TAN is extremely toxic enough to cause growth inhibition and physiological failure of aquaculture organisms, it is essential to remove TAN in breeding using circulating filtration. The biological filtration method of the sea cucumber culture apparatus according to the present invention uses a fluidized bed filtration type of the filter medium 121 filled in the biological filtration tank 120 flows by air injected into the filtration tank and removes TAN. The fluidized bed biological filtration tank 120 is provided with an air supply device 123, an aeration device 122 connected to the air supply device 123 to supply air into the water, and a filter material 121 filled in the filtration tank. It is. The air supply device 123 serves to supply external air to the aeration device 122 and may be provided as an air blower. The aeration device 122 is connected to the air supply device 123 and is disposed inside the lower portion of the biological filtration tank 120. High pressure air is blown out of the aeration device 122 to circulate the breeding water in the biological filtration tank 120, and the filter medium 121 is stirred and flows according to the circulation of the breeding water.

The biological filtration tank 120 is installed in the induction pipe formed with a water flow conversion membrane for changing the direction of the fluid in the interior space of the filtration tank and injects air and sea water by the air injection method distributed through the induction pipe, 121) and the sea water can be easily mixed by the air injected by dispersion. The biological filtration tank 120 equipped with the water flow conversion membrane is described in detail in Published Patent No. 10-2009-0076658, which may be referred to.

If necessary, two or more biological filtration tanks 120 may be installed.

Sea cucumber culture apparatus according to the present invention, if necessary, may further comprise a foam separation device (not shown) between the solid precipitate tank 110 and the biological filtration tank 120. The foam separator is to remove the organic matter in the dissolved state. The foam separation device is provided with an air supply device 123, for example, an air blower at the bottom to inject air from the bottom, the breeding water is introduced from the top of the foam separation device and discharged to the bottom to contact the breeding water and air It is desirable to increase the time. In addition, by installing a foam collection tank on the upper portion of the foam separation device can be prevented from being mixed with the breeding water again by forming the foam formed.

In addition, the sea cucumber culture apparatus of the present invention may further include a storage tank 130. The storage tank 130 is re-supplied to the culture tank 100 after the breeding water filtered through the biological filtration tank 120 is introduced It is provided for temporarily storing the breeding water.

The temperature control device 140 is provided to adjust the breeding water to a temperature suitable for sea cucumber breeding. According to a preferred embodiment of the present invention, the temperature control device 140 may be provided in the reservoir 130. For example, the temperature control device 140 may be installed in such a way that the temperature control coil 141 is connected so that the coil 141 winds the outside of the reservoir 130 several times. 1 illustrates an embodiment in which the temperature regulating device 140 is provided in the reservoir 130. In addition, the temperature control device 140 may be provided in the culture tank (100).

The temperature control device 140 compares the water temperature input from the electronic sensor and the electronic sensor capable of measuring the water temperature of the breeding water with the set water temperature value, and if the input water temperature value is different from the set value, the water temperature is set to the set value. It may be an automatic water temperature control device including an information processing device that sends a cooling or warming signal to increase or decrease (not shown).

In addition, the sea cucumber culture apparatus of the present invention may be further provided with a transfer pump 150 to transfer the stored breeding water from the reservoir 130 to the culture tank (100).

In addition, the sea cucumber culture apparatus can be used as supplementary water by collecting seawater to supplement the breeding water lost during circulating filtration. In this case, the sea cucumber culture apparatus of the present invention may further include a sand filter or an ultraviolet sterilizer so that the seawater collected for use as breeding water can be filtered.

Hereinafter, the sea cucumber culture method using the sea cucumber culture apparatus according to the present invention is as follows.

Sea cucumber is the fastest growing at about 17 ℃ to 19 ℃, 20 ℃ or more growth is slowed down to 25 ℃ or more stops growing and enters the stage. Therefore, the water temperature of breeding water in the sea cucumber tank is to maintain a water temperature of 10 to 19 ℃ suitable for the growth of sea cucumber. Preferably it is 15 degreeC-19 degreeC, More preferably, you may be 17 degreeC-19 degreeC. The temperature control can be achieved by using the temperature control device 140 included in the sea cucumber culture device of the present invention. Therefore, when the sea cucumber culture method of the present invention can maintain a constant water temperature suitable for the growth of sea cucumber, for example, 19 ℃ or less, unlike the farming method in the open field seawater of July to September by solving the problem of sea cucumber Sea cucumbers can be produced without being affected by the high temperature of

In the case of the land tank breeding method, generally, the bottom part of the tank has accumulated sediment, such as the excreta of the breeding aquatic animal or the residue of the remaining feed residues. Too bad. Sea cucumbers lack the ability to regulate the ingress of water or salt in body fluids due to the physiological and ecological characteristics of echinoderm, and because they do not move quickly (less than 10 cm / min), sea cucumbers attached to the bottom do not escape quickly from the environment. It may be adversely affected.

In order to solve this problem, the bottom portion of the breeding sea cucumber and the culture tank 100, and the portion of the sediment precipitated by installing the diaphragm 101 in the interior space of the culture tank 100, the sea cucumber is the upper portion of the diaphragm 101 Place it only on. In this way, by separating the sea cucumber and the bottom spatially can be separated from the sea cucumber spatially to create a good growth environment for the growth of sea cucumber. For the configuration of the culture tank and the diaphragm 101 in which the diaphragm 101 is installed, refer to the above-described part.

As a method for increasing the storage density of sea cucumbers in the cultured water tank 100, it is possible to provide a shelter inside the water tank, which may be an attachment substrate of sea cucumbers. Since the diaphragm 101 may serve as an attachment substrate to which the sea cucumber can be attached, two or more diaphragms 101 may be installed inside the tank to increase the attachment area of the sea cucumber to provide it as a shelter of the sea cucumber. . This increases sea cucumber capacity per unit tank, increasing sea cucumber production. However, as the storage density of sea cucumber in the tank increases, the generation of contaminants increases compared to the circulating filtration rate of the breeding water, so that the contaminants are not quickly discharged only by natural drainage by the gravity of the breeding water. In order to solve this problem, there is provided a method for additionally securing a drainage path by installing a breeding water drainage auxiliary pipe 105 formed with a plurality of drainage holes penetrating the diaphragm 101 up and down inside the aquaculture tank 100. I use it. The breeding water drainage auxiliary pipe 105 is as described above. In addition, in order to promote the drainage of breeding water is applied to the method of generating water flow in the breeding water to increase the flow rate to promote drainage. In order to generate the water flow, as described above, the water flow generating motor 102 may be provided in the water tank, and thus a method of generating water flow may be applied. In addition, as described above, the flow of water is generated to increase the flow rate, thereby preventing the effect of blocking the discharge of soil by the diaphragm 101.

When breeding sea cucumbers using the sea cucumber culture apparatus of the present invention as described above, it is possible to increase the maximum sea cucumber storage density of the culture tank up to 250kg / m ² . However, as the sea cucumber storage density increases, the amount and speed of contamination increase, which may lead to the deterioration of breeding water quality, and the burden (especially cost) for filtration of the breeding water occurs. / m ² or less, more preferably 150 kg / m ² or less, most preferably 100 kg / m ² or less. Since the production of sea cucumber is about 1kg per 1 pyeong in the case of the festive food or aquaculture system, the sea cucumber culture method according to the present invention can achieve a significant increase in production compared to the festival or aquaculture system.

Considering the above density, the return rate of breeding water is 10 times or more per day. Preferably they are 10 times or more and 50 times or less. If the recovery rate is less than 10 times, the breeding water may not be sufficiently filtered and dirt may accumulate.

As described above, sea cucumbers lack the ability to regulate the access of water or salt in body fluids. Therefore, in order to maintain the above-mentioned storage density, water quality conditions such as dissolved oxygen concentration, pH and salinity of the bred water must be maintained at an appropriate level for sea cucumber growth.

In the sea cucumber culture method of the present invention, the dissolved oxygen concentration of the breeding water is 3ppm to 10ppm, more preferably 4ppm to 8ppm in consideration of the growing conditions of breeding sea cucumbers.

In the sea cucumber culture method of the present invention, in consideration of the growth conditions of breeding sea cucumber, the pH of the breeding water is pH 7 to pH 9.

In the sea cucumber culture method of the present invention, the salinity of the breeding water is 20 ‰ to 50 ‰, preferably 28 ‰ to 38 ‰, considering the growth conditions of the bred sea cucumber.

Filtration and return of the breeding water is done using the circulation filtration device used in the sea cucumber culture apparatus according to the present invention. The filtration process of the breeding water is as follows.

Breeding water and soil is discharged from the sea cucumber culture tank (100). Discharge of the breeding water and soil is made through the diaphragm 101 and the drainage auxiliary pipe 105 installed in the tank. In addition, the discharge may be promoted by the water flow generated by the water flow generating motor 102 provided inside the sea cucumber tank. The breeding water discharged from the water tank is then transferred to the solids precipitation tank 110, and then the precipitated solids contained in the breeding water are precipitated on the bottom of the solids precipitation tank 110. The upper breeding water separated from the precipitated solids is introduced into the biological filtration tank 120. The breeding water introduced into the biological filtration tank 120 is ammonia nitrogen is removed by the fluidized bed filtration method. Breeding water filtered as described above is introduced into the storage tank 130 is stored and then returned to the culture tank 100 again. The stored breeding water is adjusted to a temperature of 10 ° C to 19 ° C by using the temperature control device 140 provided in the storage tank 130 before being returned to the culture tank 100 again.

Hereinafter, the sea cucumber culture apparatus and the sea cucumber breeding method according to the present invention will be more clearly understood by the following specific examples.

By applying the sea cucumber culture apparatus according to the present invention to the sea cucumber culture, it is possible to produce a certain amount of sea cucumber throughout the year without problems such as reduced production due to the lower surface of the sea cucumber in the high temperature of the summer. In addition, the present invention is using a sea cucumber culture tank designed to quickly separate and discharge the pollutant of the breeding water and a circulating filtration device to filter the breeding water discharged from the sea cucumber culture tank in a physical and biological manner to resupply the sea cucumber culture tank The sea cucumber farming equipment can provide a good water environment for sea cucumber farming, so even if the water density of sea cucumber in the tank is high, it does not adversely affect the growth of sea cucumber.

1 is a schematic diagram of a sea cucumber culture apparatus according to a preferred embodiment of the present invention.
Figure 2 shows an enlarged cross section of the culture tank.
Figure 3 shows a specific embodiment of the culture tank of the sea cucumber culture apparatus of the present invention, the specific position of the diaphragm integrally formed with a support formed with a drainage hole, which is used to support the net is located under the net and the net One embodiment is shown.
Figure 4 is the result of measuring the coastal water temperature in Tongyeong from November 2008 to February 2009.
5 is a graph showing the water temperature change of the breeding water in the sea cucumber culture apparatus of the present invention.
6 is a graph showing the change in dissolved oxygen concentration (DO) of the breeding water in the sea cucumber culture apparatus of the present invention.
Figure 7 is a graph showing the pH change of breeding water in the sea cucumber culture apparatus of the present invention.
8 is a graph showing the salinity change of the breeding water in the sea cucumber culture apparatus of the present invention.

Sea cucumber farming tank

As a sea cucumber culture tank, a cylindrical aquarium (116 cm in diameter x 120 cm in height) was prepared. The number of breeding water filled in the culture tank maintained 1,000L. The bottom of the culture tank is to be inclined around the drain hole to facilitate the discharge of breeding water or soil. A diaphragm consisting of a net and a support is integrally placed at a position 30 cm from the bottom of the culture tank so that sea cucumbers inhabit only the upper portion of the diaphragm of the tank and the wastewater is discharged through the diaphragm along the flow of the breeding water. The breeding drainage auxiliary pipe penetrating the diaphragm was provided to facilitate drainage. In addition, a small motor was installed at the bottom of the diaphragm to forcibly generate water flow.

-Biological filtration tank

Biofiltration tank was applied to the fluidized bed filtration method using a fluidized bed filter medium. The filter medium was a polypropylene tube having a diameter of 1 cm and a length of 1 cm to allow the filter medium to flow smoothly in the biological filtration tank during aeration. The filter medium was filled in about one-third of a 1-ton quantity filter tank, and the total surface area of the filter medium filled in the filter tank was 1.8 km ^2, which was much larger than that of the fixed filter medium. The biological filtration tank used an FRP barrel having a diameter of 114 cm and a height of 1 m, and an air stone was installed at the lower center of the filtration tank as an aeration device. The amount of aeration was 180 L / min so that the filter medium could be sufficiently stirred.

-Form conditions

The sea cucumbers used in this experiment were collected from sea cucumber specialty handling company, and their size was 22.1cm in length and 24.59g in weight. The sea cucumbers were housed in a cylindrical one-ton water tank with 3,014 animals at an initial density of 74.1 / 1 m ² , and the total number of surviving individuals was measured after 60 days. Feeding feeds 3.0% of the body weight (converted to dry weight) daily, reducing the load on the system as much as possible. The feed used a liquid fermentation feed that was mixed and sterilized with protein sources, minerals, substitutes, seaweed powder and other nutrients, and fermented with microorganisms. The composition of the feed was 26% crude protein, 16.7% crude fat, 17.3% crude fiber and 40% ash. A small amount of industrial oxygen was injected to supply oxygen in the breeding water so that the dissolved oxygen level was kept above 5 ppm. The breeding water was circulated using a transfer pump, and the inflow was maintained at 26.4 l / min so that the breeding water circulation rate was 38 revolutions per day.

- Experiment result

1) Breeding water quality

Breeding water quality was measured after calibrating three peaks using PH-20N (Istek), DO was measured using YSI-58 (YSI), salinity was measured using N-1α (ATAGO) salinity refractometer Measured. TAN was measured after 2 peak calibration using NH4-1F (KRK).

The water quality results during the operation of the sea cucumber culture apparatus showed good aspects as shown in Table 1 below and FIGS. 4 to 8. The water temperature was observed at 18 ° C. The range of pH change during the aquaculture period was also maintained at 7.8-8.2 and DO was maintained above 5.8 ppm. Salinity was found to be 32 ± 2 ‰. The change in TAN in the sea cucumber culture device ranged from as low as 1.1 mg ± 0.21 / L to as high as 2.4 ± 0.19 mg / L (Table 1). The highest value was found to be 2.4 ± 0.19mg / L in the precipitation tank and the lowest value was 1.1 ± 0.20mg / L in the biofiltration tank.

Changes in TAN Values in Aquaculture Equipment Configuration TAN Sedimentation tank 24 ± 0.19mg / ℓ Biological filtration tank 1.1 ± 0.20mg / ℓ Reservoir 1.8 ± 0.24mg / ℓ

2) form results

3,014 sea cucumbers, 22.1 cm in length and 24.58 g in weight, were cultivated for 60 days using the sea cucumber culture apparatus at a sea density of 74.1 kg / m ² (= 244.53 / 3.3 m ² ). 2,716 of the first 3,014 survived and survived 90.1%. In addition, the average body weight of the sea cucumber was 24.58g during the initial cultivation, the average weight of the sea cucumber increased after the culture 60 days to 27.65g, the sea cucumber acceptance density of the culture tank was 75.1kg / m ² .

Breeding result of sea cucumber Water tank (1 ton) BW (kg) /3.3m ²
Before breeding

Gross weight (g) 74.1 244.53 Sea cucumber population 3,014 3,014 Average weight (g) 24.58 - Length (mm) 22.1 ± 5.7 -
After breeding

Gross weight (g) 75.1 247.83 Sea cucumber population 2,716 2,716 Average weight (g) 27.65 - Length (mm) 23.2 ± 6.5 - Weight change 1.0 - Growth rate 1.02 - Feed Contribution 14.1 - Survival rate 90.1 90.1

100 sea cucumber culture tank 101 diaphragm
102 Water Flow Motor 103 Sewage
104 drainage 105 breeding water drainage auxiliary pipe
106 Net 107 Support
108 tank body
110 Solid Precipitation Tank 111 Precipitated Solids
120 Bio Filter Tank 121 Filter Media
122 Aeration device 123 Air injection device
130 reservoir 140 thermostat
141 Thermostatic Coil 150 Transfer Pump
200 circulation piping 300 valve

Claims (9)

Countertop body;
A drain hole formed in the tank body;
A diaphragm installed in an inner space of the tank body and having a plurality of drainage holes formed therein; And
A water flow generation motor installed under the diaphragm and configured to generate water flow under the diaphragm;
Included, wherein the diaphragm is spaced apart from the bottom of the tank so as not to contact the bottom of the tank is installed transverse to the bottom, the culture tank characterized in that the upper portion of the diaphragm is provided as a habitat for sea cucumbers Breeding water circulation filtered sea cucumber farming device.
The method of claim 1,
Drainage hole formed in the diaphragm is 2mm to 10mm in diameter, sea cucumber culture apparatus.
The method of claim 1,
The culture tank further includes a breeding water drainage auxiliary pipe, which vertically penetrates the diaphragm so that one end thereof is connected to the drainage port of the culture tank, and is installed up and down on the inner space of the tank and has a plurality of drainage holes formed on a wall thereof. Phosphorus, sea cucumber farming device.
The method of claim 3,
The height of the top of the breeding water drainage auxiliary pipe is formed lower than the height of the top of the culture tank, sea cucumber culture apparatus.
delete 5. The method according to any one of claims 1 to 4,
A solid settling tank connected to the culture tank and the circulation pipe;
A biological filtration tank connected to the solid precipitate tank and the circulation pipe; And
Thermostats;
To further include, sea cucumber culture apparatus.
Sea cucumber culture method using the breeding water circulation filtered sea cucumber culture apparatus according to claim 6.
The method of claim 7, wherein
The temperature of the breeding water in the culture tank is 10 ℃ to 19 ℃, sea cucumber culture method. The method of claim 7, wherein
The return rate of the breeding water is 10 cycles to 50 cycles per day, sea cucumber culture method.

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