KR100277292B1 - Abalone farming structure - Google Patents

Abstract

The present invention relates to a structure for abalone farming to induce efficient growth of the abalone during abalone farming, especially by feeding the mixed feed as food to the land tank tank, a plurality of predetermined holes for the abalone to pass through A roof 41 having a planar shape having a 42 and a support 43 supporting the roof 41, wherein the roof 41 and the support 43 are made of a material whose surface is smooth and opaque. The roof 41 is horizontally attached by attaching the 41 and the support 43 at a right angle, and the attachment portion 44 of the roof 41 and the support 43 is treated as a curved surface, and the support 43 is Formed in the form of two flat plates separated by a certain distance, because the roof is flat, abalone is attached to avoid the light during the day, but less energy is consumed, and the feed itself does not flow from the roof, so the roof itself is used as a feeder. Action Therefore, it is possible to shorten the distance that abalone moves to ingest the food, and it is possible to use the three-dimensional overlapping of the aquaculture structure in multiple layers, which has the advantage of high space utilization, thereby maximizing the efficiency of the abalone culture. .

Description

Shelter for culture of abalone

The present invention relates to an abalone aquaculture structure (Shelter), and more particularly relates to an abalone aquaculture structure that can feed the compound feed to feed the abalone to induce efficient growth of the abalone during aquaculture.

In general, abalone farms produce tens of millions of artificial seedlings and are stocked offshore to breed for re-disposal, submerged chalong, or land tank farming.

However, when a small chip of about 1 to 2 cm is discharged to the coast as it is, the discharge effect is greatly reduced due to the adaptation to the natural environment after the discharge and the dissolution of pirates. Therefore, rather than direct discharge of small flocks, the discharge of large flocks (more than 3 cm) by middle fostering, the discharge of flocks by the formation of abalone shells, and the complete farming by drowning chaff culture are attempted. Breeding can be managed artificially during the entire breeding process because there is always a risk of being limited to suitable farms, natural disasters caused by typhoons, damage caused by seawater red tide, damage caused by attached organisms such as barnacles and pearl mussels, and theft. There is an increasing trend in land-based fish farming.

On the other hand, in recent years, due to the large size of the abalone culture, the problem of stable supply of high-quality food has emerged. To solve this problem, research on the development and expansion of artificial feed is being conducted. Although experiments on development and use have been conducted mainly on the nutritional aspects of feed, few studies have been conducted on aquaculture structures for inducing intake of efficient blended feed.

On the other hand, the conventional structure for farming abalone in such a land tank tank, as shown in Figures 1 and 2 attached, most are made of a semi-circle or triangle.

However, such a conventional abalone farming structure has a high energy consumption when the abalone is attached to avoid light during the day because its roof is inclined. In order to ingest this food, it is always necessary to descend to the bottom, thus increasing the moving distance of the abalone, and also causing a loss of the feed compound feed, which is difficult to grow the abalone efficiently.

Therefore, in the present invention, it is desired to find an appropriate culture structure for promoting abalone growth while minimizing the loss of the compound feed for abalone toothpaste.

An object of the present invention is the growth rate, survival rate, structure adherence rate and daily growth rate of the flocks according to the breeding water temperature and mixed feed, such as warm water, natural water, and natural feed (eg, seaweed, seaweed, etc.) for abalone toothpaste By comparing and analyzing the growth rate according to the type of aquaculture structures, it is to provide a abalone aquaculture structure that can promote the growth of abalone by increasing the efficiency of food intake while minimizing the loss of blended feed.

The present invention for achieving the above object is a structure that is installed in the tank in order to form the abalone spawn in the land tank, a flat roof having a plurality of predetermined holes so that the abalone can pass, and supports the roof Characterized in that it comprises a support.

In addition, the roof and the support is used as a smooth and opaque material of the surface, the support is attached to the roof at right angles to maintain the roof, characterized in that the attachment portion between the support and the roof has a curved surface.

In addition, the support is characterized in that for supporting the roof spaced apart a predetermined distance in the form of two flat plates.

1 is a perspective view of one example of a conventional typical abalone culture structure

Figure 2 is a perspective view of another example of a conventional typical abalone culture structure

Figure 3 is a perspective view of one example of the structure for overturning according to the invention

Figure 4a is a perspective view of another example of the structure for overturning according to the invention

4b, 4c and 4d are top, front and side views of FIG. 4a.

<Description of Symbols for Main Parts of Drawings>

41: roof 42: hole

43: support 44: attachment site

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

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

3 is a perspective view of one example of the structure for overturning according to the present invention, having a predetermined number of holes 32 through which the abalone can pass through the plate 31 of the multi-stage curved transparent material in a wave shape.

On the other hand, Figures 4a, 4b, 4c and 4d is a perspective view, a plan view, a front view, and a side view of another example of the structure for overturning according to the invention, a predetermined number of holes 42 to pass through the abalone to be farmed The opaque material of the opaque material which forms a horizontal plane and the roof 41 is bonded at right angles to the roof 41, and the bonding portion 44 is smoothly formed into a curved surface to support the roof 41. It includes a support 43 made of.

On the other hand, the size of the hole 42 formed in the roof 41 is formed to have a size of 1 to 1.5 times the length of the abalone shell to be farmed so that the abalone can pass freely, the support 43 for supporting the roof 41 The height of) is adjusted to the size of the abalone to be farmed, and is generally formed by adjusting 1.2 times or 2 times the length of the abalone.

In this configuration, since the roof 41 is flat, it is easy for the abalone to be attached to the roof 41 in order to avoid light during the day, and since the fed food does not flow down from the roof 41, the abalone feeder As a result, the abalone does not move to the bottom for feeding, so the distance the abalone moves is shortened.

In addition, the adhesive portion 44 of the support 43 and the roof 41 is formed to be smooth, so that the abalone may be easily moved from the floor to the roof 41 by the support 43, and by the support 43. Since the supported roof 41 forms a horizontal plane, it is possible to form a three-dimensional rollover by overlapping a plurality of layers in the culture tank. That is, the same effect as that of the multistage water tank can be obtained.

Next, the experimental modal results of the conventional semicircle (FIG. 1) and the triangle (FIG. 2) and the wave form (FIG. 3) and the planar form (FIG. 4A) according to the present invention as described above. It demonstrates in detail.

First, one cultured abalone structure was accommodated for each culture tank, and each culture tank had four experimental zones for each type of abalone farming structure, two experimental zones for each food type (mixed feed, raw seaweed), and aquaculture water temperature (natural water, 2 experiments were prepared in pairs for each type of warm water), and a total of 32 experiments were tested.

The abalone, an experimental chipper, was selected for the abalone and farmed for 15 weeks with 100 animals in each of the 32 experimental zones, and the food supply supplied enough fresh fresh food once every two days after cleaning each experimental zone. It was.

On the other hand, the survey items include aquaculture environment such as water temperature, salinity, hydrogen ion index (pH), dissolved oxygen, the abalone adhesion rate of the aquaculture structure, the length of the abalone, the height, the angular width, and the total growth of the abalone, The daily growth rate, survival rate, daily mortality rate and body composition of the chipping were examined.

First, the results of the experiment on changes in aquaculture environment are as follows.

Aquaculture water temperature during the aquaculture trials ranged from 13.2 to 17.9 ° C (average 16.4 ° C) for warm water and 8.3 to 17.9 ° C (average 13.7 ° C) for natural water. The warm water temperature was maintained at the same temperature as the natural water by stopping the heating at the point of about 15 ℃, and the natural water temperature gradually increased to a low water temperature of 10 ℃ or lower at the beginning of the experiment and increased to 17.9 ℃ at the end of the experiment. Seemed.

Dissolved oxygen is 4.63 ~ 9.27mg / l (average 6.32mg / l) in warm water temperature and 6.36 ~ 9.40mg / l (average 7.58mg / l) in natural water temperature. Indicated.

pH was 5.95 ~ 9.32 (average 8.09) for warm water temperature and 5.95 ~ 9.39 (average 8.14) for natural water temperature, but the experimental groups showed similar tendency, but the pH decreased by about 2 days from the beginning of the experiment. It showed an aspect.

Salinity was 33.8∼34.2 ‰ (average 34.0 ‰) for warm water temperature and 33.8∼34.2 ‰ (average 34.0 ‰) for warm water temperature.

Next, look at the results of the experiment on the attachment rate of the chip.

Changes in the rate of adhesion of the abalone aquaculture structures by type, type of food, and water temperature during the culture period were as follows.

First, according to the shape of the structure, the adhesion rate was 95.3% and 96.3% in the triangle and planar shape, respectively, and the lowest adhesion rate was 50.8% in the wave shape.

By feed type, the average feed rate was 71.4% and seaweed was 97%, showing a high adhesion rate of more than 25% in the wakame feeding experiments. The difference in adhesion rate was 95% in seaweed, 7% in natural water and 97% in seaweed. This was judged to be the result of the structure that the wave structure is almost transparent PT plate material to maintain the low roughness. In addition, the same structure, seaweed feeding tank showed higher chip attachment rate in the compound feeding tank, and this attachment rate was different at the early stage of the culture experiment, and abalone had a large mortality rate (60-85%) at the beginning of the culture. It is very important that the initial adhesion rate is high.

By water temperature, the average temperature was 82.9% and 85.5%, respectively. In other words, the effect of water temperature difference on the adhesion rate of chipping was very small.

Next, look at the results of the experiment on the growth of the chip.

The maximum growth of the length of the chipboard was the highest in the experimental group fed the mixed feed to the semicircular structure of warm water, with an average of 23.4 ± 2.9 mm, and the minimum growth was the average of 18.1 ± 2.4 in the experimental group fed the seaweed to the flat structure of natural water. Lowest in mm. This growth difference is 5 mm or more, which corresponds to 50% of the average length of 10.1 mm at the start of the culture experiment.

The growth of each length of the aquaculture structure was 20.3 mm in the semicircle, 20.0 mm in the triangle, 19,2 mm in the wave form, and 19.5 mm in the planar form. The semicircle with the highest growth and the wave form with the lowest growth showed an average growth difference of about 1 mm, and there was no significant difference in each experimental section.

Growth of cages by type of food was higher in all cultured tanks than in seaweed. That is, the experimental group fed the blended feed had an average growth of 3 mm or more in the warm water experimental group than the experimental group fed the seaweed, and the average difference of 1 mm or more in the natural water experimental group. In other words, the average length of the entire experimental group fed the blended feed was 20.9 mm, whereas the average length of the entire experimental feed fed the wakame was 18.6 mm, which was 2.3 mm from the average length. appear.

On the other hand, the angular width of the growth of the aquaculture structures was 14.4 mm in the semicircle, 14.2 mm in the triangle, 13.8 mm in the wave shape, and 13.7 mm in the planar shape, with the highest growth and the lowest growth planar structure. There was no significant difference in the mean growth difference of about 0.7 mm, and the growth of each width was higher than that of seaweed.

In addition, the height growth of the larvae by aquaculture structure was 4.4 mm in the semicircle, 4.4 mm in the triangle, 4.3 mm in the wave shape and 4.3 mm in the planar shape. The difference between the highest growth and the lowest growth was 0.1 mm, which was very small, and no significant difference was recognized.

In addition, the total growth of the larvae by aquaculture structures was 1.10g in the semicircle, 1.07g in the triangle, and 0.95g in the wave and plane. The difference between the highest and lowest growth was very small, about 0.03 ~ 0.15g.

In particular, the planar structure was concentrated under the base of the support and the roof, and it was determined that the surface area of the eastern part should be increased and the contact area between the support and the roof should be smoothed round.

Next, look at the experimental results for the daily growth of the chip.

The growth rate of each plaque for each aquaculture structure was 85.0㎛ for semicircle, 82.0㎛ for triangle, 75.8㎛ for wave shape and 77.1㎛ for flat shape, and the difference in growth between semicircle with the highest growth and wave shape with the lowest growth was It was as fine as 2.1∼9.2㎛, and the mixed feed was 19㎛ higher by food type, and the warming water was 14.8㎛ higher depending on the culture water temperature.

On the other hand, the average daily growth of larvae by aquaculture structures was 59.0 ㎛ in semicircle, 57.5 ㎛ in triangle, 53.7 μm in wave shape, and 53.5 μm in planar shape. The average feed temperature was 14 ㎛ and warm water was 11.4 ㎛ average.

In addition, the average daily growth of algae for aquaculture was 13.8㎛ for semicircle, 13.2㎛ for triangle, 12.1㎛ for wave, and 12.7㎛ for flat type. The average feed temperature was 4.6 ㎛, and the average temperature was 1.9 ㎛.

The average daily growth of the plaques by aquaculture structures was 80 mg in semicircle, 78 mg in triangle, 67 mg in wave form, and 68 mg in flat form. The difference between the highest growth and the lowest growth was 1-13 mg. According to the type of food, the average amount of feed was 36mg and the average temperature was 26mg.

Next, look at the results of the experiment on the survival rate of the chip.

Survival rates of plaques for aquaculture were 93.3% for semicircles, 87.6% for triangles, 86.9% for waves, and 85.9% for planes. The difference between the highest and lowest survival rates was 5.7-7.4%. According to the type of food, the average amount of mixed food was 6.8% and the warm water was 3.2% higher than the culture water temperature. As it does not mean much.

Next, let's look at the experimental results for the daily mortality rate of chipping.

The daily mortality rate of the plaques was 1.68 × 10 ^-4, which was the lowest in the semicircular structure and the experimental group using warm water and seaweed, and 24.56 × 10 ^-4 was the highest in the experimental group using the wave structure, natural water and seaweed. The daily mortality rate of the plaques for the various types of seaweed feeding aquaculture was 5.96 × 10 ^-4 for the semicircle, 11.21 × 10 ^{-4 for the} triangle, 10.95 × 10 ^{-4 for the} wave, and 14.51 × 10 ^-4 for the plane. Was 4.99 × 10 ^-4 ~ 8.55 × 10 ^-4 , and the average feed temperature was 7.17 × 10 ^-4 and the warm water was 1.51 × 10 ^{-4, respectively} .

Next, the experimental result about the change of the body composition of the chip | tip is demonstrated.

Chip samples for body composition analysis were randomly extracted and stored at 200 at the beginning of the experiment and 50 at each tank at the end of the experiment, and analyzed the general components (moisture, protein, lipid, ash) of the soft whole body.

Moisture content in the body composition was 81.01% at the beginning of the experiment. At the end of the experiment, 79.37 ± 0.134% of the experimental group using the planar structure, warm water and blended feed, and 82.85 ± 0.332% of the experimental group using the planar structure, natural water and seaweed. Was slightly lower than seaweed feeding, and higher in warm water than in warm water.

In addition, protein was higher in almost all experimental groups than 10.44% at the beginning of the experiment, and lipids were higher in all the blended feeding groups than at the beginning of the experiment, compared to 0.84% at the beginning of the experiment. It was more pronounced in the seaweed feeding experiment.

On the other hand, ash was lower in all the experimental groups than 3.38% at the start of the experiment. These values were significantly lower (P> 0.05) in the blended feeding group than the seaweed feeding group.

The results of the above experiments showed that the attachment rate of the plaques was highest in the planar structure and the lowest in the wave structure. The experimental group was the highest and the warm water using the wave-type structure and wakame seaweed showed the lowest value, but there was no significant difference between the experiments.

On the other hand, the survival rate of the plaques was highest in the warm water experiments using the semicircular structures and the wakame seaweeds, and the lowest survival rate in the warm water experiments using the seaweeds and the wakame seaweeds. Was not statistically significant.

Therefore, the attachment rate of the plaques depends on the form of the aquaculture structures, and the growth and survival rate of the plaques is a combination of the form, food type and culture water temperature, such as the color, material, surface roughness, and the range of activity of the plaques. It can be seen that it is influenced by other factors.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

As described above, according to the present invention, since the roof of the aquaculture structure is flat when the abalone is farmed on land, the abalone is attached to avoid the light during the day and consumes less energy, and thus the feed is not flowing from the roof. Since it acts as a feeding ground, it can shorten the distance that abalone moves to ingest the food, and it can be used three-dimensionally by stacking the aquaculture structure in multiple layers, which has the advantage of high space utilization. There is an advantage that can be maximized.

Claims (4)

It is a structure installed in the tank in order to farm abalone plaque into the land tank, A flat roof 41 having a plurality of small holes 42 for the rollover to pass therethrough; Abalone farming structure comprising a support 43 for supporting the roof (41). The structure of claim 1, wherein the roof (41) and the support (43) are made of a smooth and opaque material. The structure of claim 1 or 2, wherein the support (43) is attached at right angles to the roof (41) so that the roof (41) is horizontal. The structure of claim 3, wherein the support (43) is formed in the form of two flat plates to support the roof (41) at a predetermined distance apart.