KR20130127076A - A feed composition for eel aquaculture using an earthworm powder as an active ingredient - Google Patents

Abstract

The present invention provides a production method of an earthworm powder feed composition for an eel aquaculture using earthworm powder as mixed feed, a feed additive, and yellow soil water for mixing the feed and the additive, to reduce the costs for aquaculture management for producing eco-friendly aquaculture products and to prevent various diseases from producing healthy eels. In the control group, bacterial diseases have occurred twice and helminthic diseases have occurred once without the earthworm powder and yellow soil water, but the experimental group using the earthworm powder and yellow soil water has no diseases. Pond scum smell of the eel is removed after using the yellow soil water for 5 days to enable eaters to easily eat without the bad smell. Mixed feed paste using the yellow soil water improves the viscosity when comparing the mixed feed using underground water. [Reference numerals] (AA) Yellow soil refinement;(BB) Underground water mixing;(CC) Stir for more than 24 hours;(DD) Neglect for two or three days;(EE) Extract supernatant;(FF) Use as make-up water in eel raising;(GG) Boil earthwarms in a steam cooker;(HH) Dry using hot air;(II) Grind into powder;(JJ) Mix the supernatant, earthwarm powder, and assorted feed;(KK) Produce paste feeds and provide the feeds

Description

Eel aquaculture using an earthworm powder as an active ingredient.

The present invention relates to a method for producing an eel aquaculture feed additive and feed composition using earthworm powder as an active ingredient to prevent various diseases and to produce healthy eel for producing aquaculture products safely.

Eels are the most potential farmed species in Far East Asia. Among the eel (Angilliforme) fish, the far east eel ( Anguilla japonica ) and the European eel ( Anguilla Anguilla ) are found in Far East Asia (Japan, Taiwan, China and Korea) and Europe (mainly Italy). And the Netherlands) in the aquaculture industry.

Looking at the history of eel farming in Korea, until the early 1970s, the eel caught on the coast was captured and grown to an average weight of about 2g and exported to Japan or Taiwan. As technology was introduced from Japan with aquaculture technology, the development was remarkable.

In the 1990s, it developed into a castle production system by the exponential farming method. In the 2000s, it developed into a mass production system by introducing a practical circulating filtration system. In general, eel lives in water at a temperature of 10 ~ 25 ℃, but in farms, it maintains 25 ~ 28 ℃ water temperature and feeds high-protein compounded feeds to induce rapid growth. In 2010, Korea's production amounted to about 7,900 tons, and Jeonnam region produced about 4,800 tons, producing 60% of the country (see Table 1).

Chonnam Eel Production yearly 2006 2007 2008 2009 2010 National (ton) 8,012 10,597 6,480 6,621 7,902 Jeonnam (Ton) 6,109 7,590 4,145 4,132 4,827

However, in recent years, eel farming in Korea has been experiencing great difficulties. In eel farming, a large amount of money is required to purchase seedlings with the highest operating expenses. So far, eel has not been established in artificial seedling production technology, and research on artificial seedling production technology is being actively conducted in Japan and Taiwan, but it is still at the beginning level. Eel farming technology has made great strides, but due to the absence of artificial seedling production technology, it is completely dependent on wild seedlings.

In 2010, the total seedling requirements of Korea were 10.6 tons, importing 8.2 tons from China and Taiwan, and only 2.4 tons in Korea. As the demand for eel consumes 100 tons per year in China and other countries, the price of eel in Korea, which relies on imports, has recently been soaring to 15,000 thousand won (3,000 won per 3,000) per 5,000 kg. The price of fish is increasing. In particular, the world's demand for thread eel is about 200 tons, and the market is worth 2 trillion won.

In addition, as the price of international fishmeal continues to rise, the price of compounded feed in Korea has risen 100% over the past five years. In addition, it is expected that research on the production of eco-friendly eel farming aquatic products and reducing the farming management cost should be studied because the farmed eel has low confidence in the stability of the seafood to consumers.

Accordingly, the present invention provides a method for producing an eel farm feed additive and feed composition using earthworm powder as an active ingredient to reduce aquaculture management costs, prevent various diseases, and produce healthy eel for producing eco-friendly aquatic products. do.

Korean Laid-Open Patent Publication No. 10-09918470 discloses the manufacture of feed pellets based on ocher powder, pork bone powder, anchovy powder and soybean powder, and the feed pellets are introduced into the culture tank, but the ocher pearl is formed on the bottom of the culture tank. And by supplying the outside air to the culture tank, the loess of ocher pearl is floated by the vortex action of water so that the culture is carried out in the loess, so that the loach and eel of high quality loach and eel can be farmed in a short time. Aquaculture methods are disclosed. In addition, the domestic application No. 10-2009-0080459 relates to a method for producing fish, shellfish cultured water or storage water, in particular using fish, shellfish peculiar fishy taste, odor, It removes and reduces soil odor, oil, and salty taste, activating the meat quality of fish and shellfish, improving preservation, and cleaning fish and shellfish 24 hours to provide clean fish and shellfish. There is disclosed a method for producing fish, shellfish, aquaculture or storage water using herbs that can neutralize nitrogen or phosphorus components contained in excrement of the fish, and in Korean Utility Model No. 20-03447750, aquaculture with an ocher mortar layer It relates to an enteric tank, and the ocher mortar layer blended and kneaded ocher (masato), ocher powder, various functional natural ores, cement, aqueous solution of hardener at a constant mixing ratio By placing a predetermined thickness on the inner surface, there is a water bath to increase the amount of the form through the form of mortality minimize flow to form a pleasant environment is disclosed to ensure that exhibit this functionality, such as far infrared rays, anions and deodorization, antibacterial. Korean Laid-Open Patent Publication No. 10-1998-0019229 discloses a method for manufacturing an ocher crucian extract to filter fine loess collected from nature to obtain fine ocher powder from particles having a boulder or foreign substance removed, and to obtain the moisture content of the ocher powder. Drying at room temperature to maintain about 15% of this, and administering the loess powder prepared by the process together with the feed to at least one feed tank installed at a predetermined position of the crucian farm 10 for at least 10 days. There is disclosed a breeding method of crucian carp with ocher, which is characterized by breeding by eating. Among the prior arts, the prior art comparable to the present invention includes a composition for preparing feed rings based on ocher powder, pork bone powder, anchovy powder, and soybean powder, or using earthworms as raw materials as in the present invention. The composition and manufacturing method used as the feed additive composition is not disclosed in the prior art, and the remaining patent documents also show a difference from the present invention in the configuration forming the center of the technology.

The present invention is to reduce the farming management costs for the production of environmentally friendly aquatic products, to prevent various diseases and to produce healthy eel, and feed by mixing the earthworm powder as a compound feed and feed additive during the growth process, feed feeding Provided is an earthworm powder feed composition for eel farming using ocher jangsu as the number of dough with the formulated feed in the city.

In order to solve the above problems, fishing earthworms and earthworms were prepared as red earthworms. To prepare the prepared earthworms in powder form, separate the earthworms and impurities such as wood planers and pure earthworms, boil them in a steamer for 15 minutes, dry them thoroughly in a hot-air dryer at 60 ℃, and then finely powder them using a grinder. It was.

The prepared earthworm powder and eel blended feed are made into the dough feed using the supernatant of the ocher, and the amount of the earthworm powder added to the dough feed is based on 0.4-0.6% by weight of the daily feed of the powder feed. Earthworm powder feed composition and feed preparation for eel farming with worm powder as an active ingredient, characterized in that the feed is divided into the number of feeds, mixed with the dough feed, manufactured and fed into the feed of the eel bred in the breeding tank. Provide a method.

In addition, the manufacture of ocher for use in the dough is ocher is red ocher to ensure the soil oak taken about 1 m from the surface in consideration of soil contamination, ground water coming out of the 150m depth wells and mixed, stirred for at least 24 hours 3 If left for a day, Ocher Jijangsu is made. Stirred and leftover loess is extracted as a supernatant and used as a supplementary water in breeding tanks and water for dough during feed preparation.

In the control group that did not use earthworm powder composition and ocher longevity, 2 bacterial diseases and 1 parasitic disease occurred in summer, but there was no disease occurrence in the experiment using earthworm powder feed composition and ocher longevity. After using ocher for 5 days, there was no scent of hamkham, which is not only good for eating, but also no smell of miscellaneous food. In addition, the blended feed dough using the earthworm powder feed composition and ocher jijangsu significantly improved the viscosity compared to the feed kneaded using only ground water.

Figure 1 shows the flow chart of the eel farming method of the present invention using the ocher Jijangsu as aquaculture water, and the earthworm powder additive as a feed compound and feed additive during the growth process.
Figure 2 shows a red earthworm is a raw material of the feed additive.
Figure 3 shows a feed additive prepared in the form of a powder dried red worms.
Figure 4 shows a table for calculating the feed amount of eel feed.
Figure 5 shows a micro-ocher picture obtained by securing the soil loess taken about 1m from the surface layer to be fine after daylight disinfection.
Figure 6 is a photograph showing the stirring water tank is equipped with a loess stirrer.
Figure 7 shows the eel fry reared in ocher jangji.
Figure 8 shows the results of raising the eel by administering the earthworm additive during the experiment.

The present invention provides an earthworm powder feed composition for eel farming containing the earthworm powder as an active ingredient. The earthworm powder is characterized in that additionally added 0.2-0.3% by weight relative to the one-time feed amount of the blended feed.

In addition, a method for preparing an earthworm powder feed composition for eel farming, comprising: preparing an earthworm by separating the foreign matter contained in the earthworm from the earthworm; Boil the earthworm in a steam cooker for 10-15 minutes and dry in a warm air dryer at 55-65 ° C .; Crushing the dried earthworm with a grinder to produce earthworm powder; And characterized in that it is prepared by mixing the prepared earthworm powder and eel compound feed.

In addition, the mixture of the earthworm powder powder and eel compounded feed prepared in the above is additionally added 0.2-0.3% by weight relative to the one-time feed amount of powder feed, characterized in that it is manufactured by using ocher pasteurized water The ocher longevity is secured by removing the soil loess from 0.8-1m from the surface layer to finely filter out 1mm of netting after daylight disinfection; Mixing the micronized ocher and ground water in a stirring water bath at a ratio of 1 kg: 20-30 L and stirring for at least 24 hours and then leaving it for 2-3 days; Provided is a method for preparing an eel cultured earthworm powder feed composition, which is prepared through the step of extracting the supernatant from the left stirred tank.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Figure 1 shows a flow chart of the production method of the worm cultured earthworm powder feed composition of the present invention using ocher Jijangsu as a blending water for mixing the earthworm powder additive and the eel compound feed.

1. Securing earthworms and making feed additives

The used earthworms used as feed additives along with the ocher longevity used fishing earthworms and red earthworms in the earthworms, and visited the earthworm farm in Hwasun-gun, Jeonnam to purchase 300kg of earthworms. Figure 2 shows a red earthworm is a raw material of the feed additive. Of which 150kg was dried to prepare a powder form.

The method for preparing an earthworm powder feed composition for eel farming is to prepare the earthworm by separating the foreign matter contained in the earthworm from the earthworm, boil the earthworm in a steam cooker for 10-15 minutes, and dry it in a warm air dryer at 55-65 ° C, and dry it. The prepared earthworms are pulverized with a grinder to prepare the earthworm powder powder, and the prepared earthworm powder powder and the mixed feed for the eel are prepared. The prepared earthworm powder was added in an evenly divided 0.4-0.6% of the daily feed of feed.

In general, the eel feed is divided into two times, divided into the morning and the afternoon, so the first feeding amount is an additional 0.2-0.3% of the earthworm powder compared to the feeding amount.

Active earthworm common ingredients (per 100 g) sample Moisture (g) Crude Protein (g) Crude fat (g) View minutes (g) Carbohydrate (g) Earthworm Solids 8.8 64.7 16.4 3.0 7.1 Earthworm Concentrate 89.9 7.1 0.5 0.4 2.1

Figure 3 shows a feed additive prepared in the form of a powder dried red worm earthworm. Table 2 shows the active earthworm earthworms (per 100g), Table 3 shows the components of the earthworm dry powder.

General Ingredients of Earthworm Dry Powder (per 100g) moisture Crude protein Crude lipid Available Nitrogen Ash Crude fiber 10.6 60.0 9.3 14.4 5.6 0.1

Earthworm mucus, earthworm dry powder, amino acid component of fish meal Earthworm Slime Earthworm Drying Powder Fish meal mg / 100g g / 100g g / 100g Aspartic acid 4.4 7.52 - Glutamic acid 5.7 9.31 - Serin 2.0 3.41 - Glycine 3.3 3.66 6.31 Histidine 2.6 1.83 4.53 Arginine 3.8 4.47 4.20 Ilanine 1.8 4.14 - Proline 2.0 13.7 - Tyrosine 1.0 2.77 1.91 Dried 3.0 3.63 2.83 Methionine - 1.12 1.84 Cysteine - 0.65 0.59 Isoleucine 2.8 3.38 2.43 Leucine 3.1 5.49 4.27 Phenylalanine 1.9 3.02 2.37 Disin 2.5 6.28 1.26 Threonine 4.9 3.34 2.56 Trim - 0.38 - Hydrasiproline - - - 44.8 78.1 35.1

A) Earthworm Component Analysis

As a result of the analysis of the general components of the earthworm dry powder, the crude protein content was 60% higher than that of the normal fish feed. It was found to be high (see Table 4) and could be used as a feed additive.

B) eel feed calculation

Feeding of the eel is done twice a day, and the feeding rate is determined according to the amount of eel contained per kg, and the amount of water added to the feeding amount is different. Figure 4 shows a table for calculating the feed amount of eel feed. As shown in Figure 4, the feeding amount of the eel is divided into 100-80% feed rate, and fall-winter feed 80-90% of the standard feed rate.

Calculation of the single feeding amount is, for example, when the number of eel in the pond is 20,000, assuming that the average number per kg of eel in the pond has grown to about 6, once as shown in FIG. The total amount of feed administered is 20000/6 = 3333kg, and if the average number of fish per kg of eel is about 6, 100% of feed rate corresponds to 0.65, so 3333kg x 0.65% = 21.6kg and the amount of ocher paste used for dough is 21.6 Knead the feed using ocher lichens weighing 115% = 24.8 kg.

In addition, the earthworm powder mixed with the loess longevity as the powder feed and the dough water is 0.2-0.3% by weight, so the average value of 0.25% by weight is 21.6kg x 0.25% = 0.054kg, that is, 54g of earthworm powder Mix with feed and feed as eel.

2. Making ocher longevity for mixing earthworm powder and blended feed

50 tons of high quality loess was used in Haenam-gun, famous for red loess. The ocher used was red ocher, and the soil ocher was removed from the surface by about 1m in consideration of soil pollution. The ocher was finely filtered with a mesh of 1 mm and stirred by adding 20-30 L of groundwater per kg of ocher to the stirring tank. Figure 5 shows a micro-ocher picture obtained by securing the soil oak taken about 1m from the surface layer to be fine after the daylight disinfection. The groundwater injected with ocher was mixed and stirred for at least 24 hours using groundwater from the 150m deep well, and when left for 3 days after stirring, ocher jijangsu was made.

Figure 6 is a photograph showing the stirring water tank is equipped with a loess stirrer. When groundwater is added to micronized ocher, fine impurities come together with bubbles, and these impurities are filtered out using a filtering container.

The ratio of the refined ocher and groundwater is mixed based on 20-30L of groundwater per kilogram of ocher, and the amount of groundwater to be mixed can be controlled by looking at the content of the ocher mineral component that comes from the ocher liquor produced. Stirred and leftover ocher is extracted from the supernatant and used as dough water when preparing supplementary water and dough feed in an eel breeding tank.

After extracting the supernatant, the groundwater is replenished and stirred and left to manufacture ocher longevity, and this process is repeated to produce ocher longevity. The ocher used for about 3 months is discarded through a drain in a stirring tank and stirred with new ocher. It is put in the tank to obtain ocher jijangsu. Figure 7 shows the eel fry reared in ocher jangji.

3. Example

1) Test site and aquaculture facility

In order to investigate the effects of eel farming using ocher longevity and earthworm feed additives, Kwangmyeong Fisheries Co., Ltd., a professional producer of eel located in Baekya-ri, Haenam-eup, Haenam-gun, Jeollanam-do, Korea The experiment was conducted.

The experimental fish used for eel farming using ocher jijangsu was 200,000, and the young eel, which is 2g per litter, was used for 8 months. The eel for the compound feed additive test using the earthworm was 20,000, and the size was 100g per 50.

2) Test result using earthworm powder feed additive and loess longevity

Red clay secured in Haenam-gun is dried and stored in the sun for the purpose of storage and disinfection to remove moisture. Discard the yellow soil filtered with 1mm mesh and throw the finer clay into a tank equipped with a stirring function for at least 24 hours. Neglected to make ocher. The supernatant of the prepared ocher paste was used for supplementary and mixed feed dough and eel before shipment. The frequency of disease occurrence, haze odor removal effect and viscosity of dough feed were measured as follows. Looking at it as follows.

A) Frequency of illness

In the control group that did not use ocher index for 8 months, 2 bacterial diseases and 1 parasitic disease occurred in the control group, but no disease occurred in the experimental group using ocher index. As a factor, ocher is known to be effective in removing ammonia gas and suppressing bacteria because of its excellent antibacterial and deodorizing effect.

B) elimination effect

Freshwater fish are often concerned with the removal of fishy smells due to the unique scent of food. As a result of using the yellow eel for 5 days in the eels before shipping, it is not only good for eating because there is no smell of haecam, but also no odor.Therefore, the eel reared in the yellow eel has body color more than that of the control without using the yellow eel. It is rich and glossy and has a lot of mucus discharge on the skin, making it possible to produce healthy eel

C) Strengthen dough viscosity

Compared to the feed kneaded using only ground water, the viscous power was significantly improved. Dough feed with good viscosity is considered to be able to reduce the contamination of breeding water due to the increased dissolution time in water, and is known to have ion exchange properties and adsorption properties among the loess properties.

D) Feeding Inducement and Water Making Characteristics

Eating habits of the eels in the feeding ground showed faster induction in the experimental group than the control group, and the feeding time was about 5 minutes in the control group, whereas the experimental group took about 4 minutes and rapidly fed about 1 minute. There were a lot of individuals gathering in the area. This is because the longer the stay in the breeding ground characteristics of the dough feed is diluted in the breeding water, which results in worsening the breeding quality.

In addition, the control water production usually takes 10 to 12 days, while the experimental water takes about 7 to 10 days, making water 3 days faster than the control. The faster the stable water is made, the faster the eel grows.

E ) Positive test result using earthworm feed additive

Figure 8 shows the results of raising the eel by administering the earthworm additive during the experiment. The eel used in the experiment was divided into a control group using only normal eel compound feed and an earthworm added to the compound feed using 100g eel per litter, and the control group grew 180g and 202g in the experimental group. This growth was increased by an average of 22g per horse in the experimental group than the control group, which was 11% faster than the control group.

 In the present invention, by implementing environmentally friendly farming, several ways to secure the stability of farmed aquatic products and to reduce the cost of purchasing feed compound. First, using earthworm powder and ocher jijangsu mixed with blended feed and kneading resulted in better viscosity, which helped to create a stable breeding environment. Since fish disease does not occur, it is possible to produce aquaculture products without using antibiotics. I opened it. It is possible to produce high quality eel with good texture by removing the unique scent of eel by breeding it in ocher jangjang before shipping. Korea, which is suffering from the high price of international eel, and the increase of international fishmeal price, raises the competitiveness of eel farming industry. It is a useful invention that can help.

Claims (5)

Earthquake powder feed composition for eel farming, comprising earthworm powder as an active ingredient
Earthworm powder is an earthworm powder feed composition for eel culture, characterized in that additionally added 0.2-0.3% by weight relative to one feed of the compound feed
a) earthworm trimming step of separating the foreign matter on the earthworm from the earthworm;
b) boil the earthworm in a steam cooker for 10-15 minutes and dry it in a warm air dryer at 55-65 ° C .;
c) crushing the dried earthworm with a grinder to produce earthworm powder;
d) manufacturing method of worm cultured earthworm powder feed composition, characterized in that the mixture prepared by the earthworm powder powder prepared in step c) and the eel compound feed
According to claim 3, wherein the mixing of the earthworm powder powder and the eel compounded feed prepared in step d) is additionally added 0.2-0.3% by weight relative to the one-time feed of powdered feed, Method for producing an earthworm powder feed composition for eel culture, characterized in that the manufacturing
The land soil longevity of claim 4 is
a) refining the ground soil from which 0.8-1m is removed from the surface layer and filtering and refining it with a mesh of 1mm after daylight disinfection;
b) mixing the micronized ocher and ground water in a stirring tank at a ratio of 1 kg: 20-30 L and left for 2-3 days after stirring for at least 24 hours;
c) a method for preparing an earthworm powder feed composition for eel culture, characterized in that it is prepared through the step of extracting the supernatant from the neglected stirred tank

Images