JP2011177157A - Artificial luring bait for prawn cage fishery and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an artificial luring bait for prawn cage fishery, produced by using processing residue of fish and shellfish, etc., as a raw material, exhibiting luring effect comparable or superior to conventional natural bait such as walleye pollack, strongly resistant to feeding damage by Gammaridea compared with natural bait such as walleye pollack and continuing the luring effect on the fishery object. <P>SOLUTION: There are provided a method for producing the artificial luring bait for prawn cage fishery, strongly resistant to feeding damage by Gammaridea compared with natural bait such as walleye pollack and continuing the luring effect on the fishery object by adding a coagulating agent such as alginic acid to a homogeneous slurry composition containing the fishery processing residue of fish and shellfish, alginic acid and/or its salt and an coagulation retarder of algins, homogeneously mixing the mixture and coagulating the obtained composition; and the artificial luring bait for prawn cage fishery obtained by the production method. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  TECHNICAL FIELD The present invention relates to an artificial salmon collecting feed for shrimp basket fishery. More specifically, it uses seafood processed residue from fish and shellfish that has not been used effectively so far as a raw material, is cheaper than natural feeds, has superior corrosion resistance to competing organisms, and has the same or better collection effect than natural feeds. Further, the present invention relates to an artificial salmon collecting feed for shrimp fishery having the sustainability and a method for producing the same.

  Shrimp fisheries such as pink shrimp (nanban shrimp) and shrimp shrimp (button shrimp), which are important fish species in Hokkaido fisheries, are implemented by shrimp basket fisheries. The shrimp basket fishery is a fishing method in which bait is attached to a basket attached to a rope and laid on the bottom of the sea, and the shrimp attracted by the bait is recovered when it cannot enter the cage. The cage is attached to a branch rope branched from the trunk rope, and weights are attached to both ends of the trunk rope. A buoy for the landmark is attached to the tip of the rope from the weight to the sea surface to facilitate the collection of fishing gear.

Specific examples of baskets used in shrimp basket fisheries (commonly known as manjukago) are meshes that do not allow shrimp for fisheries to pass through, as shown in the plan view in Fig. 1 (a) and the side view in (b). Nylon made of nylon (2) is stretched and hemispherically shaped like a bowl with a steel frame (1) holding the shape down, with a funnel-shaped opening with a wide upper part and a narrow lower part It has a drop (3).
The size of the mesh is about 16.8mm x 16.8mm (commonly known as section length 10) for the purpose of catching pink shrimp and shrimp shrimp, and about 10% for catching competitors such as leaf shrimp. The size is 5.2 mm x 5.2 mm (common name, mesh length 30 nodes), and the size of the former is used in the shrimp basket fishery. Furthermore, a feeding bag (4) made of a net is attached to both sides of the mouth (inner side of the basket). Shrimp that enter the mouth due to the food collecting effect cannot come out of the basket.

  In the shrimp basket fishery, raw food (natural feed) such as frozen walleye pollock, herring, and hockey has been used for the purpose of collecting shrimp, but globalization as a food ingredient such as walleye pollock and global fishery The price has soared due to the decrease in resources. Furthermore, in natural feed, there is a problem of a decrease in fishing efficiency due to food damage caused by competing organisms such as leaf shrimps (Coleoptera).

  Therefore, the fishermen in the field are eager to develop artificial bales that are more resistant to the damage of the shrimp than natural feeds. Until now, artificial feeds for shrimp fisheries that replace natural feeds. Is not realized.

  In Japanese Patent Publication No. 60-16203 (Patent Document 1), substances having attractiveness to aquatic animals (agar shrimp, squid, sardines, etc., pupa powder, fish meal, etc.), alginate and glycerin, specified A mixed solution containing a water-soluble plasticizer selected from a molecular weight polyethylene glycol and an ethylene glycol-propylene glycol copolymer and water is extruded into a predetermined shape and immersed in an aqueous solution of a polyvalent metal salt containing the water-soluble plasticizer. A method for producing an aquatic animal attractant bait that is gelled is disclosed. Although this patent document relates to the present invention in that alginate and a polyvalent metal salt are used for gelation of aquatic animal attracting bait, there is no disclosure of the above-mentioned bait problem in shrimp fishery. In addition, when the bait is gelled, an aqueous solution of an aquatic animal attracting substance is immersed in the polyvalent metal salt aqueous solution, but in the present invention, a gelation retarder is used without being immersed in the polyvalent metal salt aqueous solution. The difference is that the gelation time is adjusted.

Japanese Patent Publication No. 60-16203

  The subject of the present invention is a fishery resource that has not been effectively used so far, such as fishery processing residues of fish and shellfish, as a raw material, and exhibits a collection effect equivalent to or higher than that of natural feed such as walleye pollack for conventional shrimp fishery, In addition, the present invention is to provide an artificial rodent collecting feed for shrimp fishery that is more resistant to the damage of tiger shrimp than natural feeds such as walleye pollock and has a sustained harvesting effect on the fishing target.

  In view of the above-mentioned problems, the present inventors made a slurry solution containing alginate for a fishery processing residue of various seafood that is a marine resource that has not been effectively used so far, and then gelled it into a predetermined shape. We made a solid food processed into sardine and used this food in shrimp basket fishery, and compared its harvesting effect with natural food (such as walleye pollock). In other words, as a fishery processing residue of fish and shellfish, we investigated the use of walleye pollack viscera, cuttlefish viscera, walleye peel, and boiled liquid (stick water) that is a by-product during the production of fish meal (meal). Confirmed that the solid feed based on the fish has the same or better effect than the walleye pollock, is more resistant to the damage of the shrimp than the walleye pollock, and has a sustained harvesting effect on the fishing target. The present invention has been completed.

That is, the present invention is used for the following shrimp fishery, and is an artificial collection that is more resistant to eating damage of competing organisms such as leaf shrimp than natural foods such as walleye pollock, and that has a sustained collection effect on the fishing target. The present invention provides a method for producing a feed and an artificial straw collecting feed obtained by the method.
1. A composition in which a coagulant of alginic acid is added to a uniform slurry composition containing seafood processing residue of seafood, alginic acid and / or a salt thereof (alginic acid), and a coagulation retarder of algin, and uniformly mixed A method for producing an artificial trapping feed for shrimp fishery that is more durable against competing organisms than natural feed and has a sustained trapping effect on the catch target.
2. Seafood is walleye pollock, madara, komai, saury, mackerel, sardine, anchovy, flounder, yellowtail, pheasant fish, sea bream, black soy, smelt, kingfisher, squidfish, waterfowl, salmon, trout, squid, herring, hokke, flounder, horse mackerel, 2. The method for producing an artificial straw collection material according to 1 above, which is selected from one or more of bonito, tuna and scallop.
3. The fishery processing residue of fish and shellfish is made of walleye pollack viscera, madara viscera, komai viscera, mackerel viscera, mackerel viscera, sardine viscera, anchovy viscera viscera, yellowtail viscera Internal organs, internal organs of black soi, internal organs of scorpionfish, internal organs of eelfish, internal organs of waterfish, internal organs of salmon, internal organs of salmon, internal organs of squid, internal organs of herring, internal organs of hokke, internal organs of flatfish, internal organs of horse mackerel, 3. The method for producing an artificial culm feed as described in 2 above, wherein the main ingredients are bonito viscera, tuna viscera and scallop viscera.
4). 4. The method for producing an artificial salmon bait feed as described in 3 above, wherein the fishery processed residue of seafood is mainly composed of the internal organs of walleye pollock.
5). 2. The method for producing an artificial persimmon diet as described in 1 above, wherein the alginic acid is at least one selected from alginic acid, sodium alginate, potassium alginate, ammonium alginate, and propylene glycol alginate.
6). 6. The method for producing an artificial straw collection material as described in 5 above, wherein the alginic acid is sodium alginate.
7). 2. The method for producing an artificial straw collection feed according to 1 above, wherein the coagulation retarder of alginic acids is selected from sodium phosphates, organic acid sodiums, and chelating agents of polyvalent metal ions.
8). Sodium phosphates are selected from sodium tripolyphosphate, sodium hexametaphosphate, sodium phosphate, sodium metaphosphate and trisodium phosphate, and organic acid sodium is sodium citrate, sodium malate, sodium succinate, sodium lactate 8. The method for producing an artificial straw collection feed according to 7, wherein the chelating agent for polyvalent metal ions selected from sodium acetate and sodium glutamate is disodium ethylenediaminetetraacetate (EDTA · 2Na), bipyridine or phenanthroline.
9. 2. The method for producing an artificial cocoon feed according to 1 above, wherein the coagulant of alginic acid is selected from polyvalent metal salts that coagulate an aqueous solution of alginic acid.
10. 10. The method for producing artificial artificial bait food according to 9 above, wherein the polyvalent metal salt is an inorganic acid salt or organic acid salt of a metal selected from calcium, iron, zinc, tin, copper, manganese, nickel, cobalt, and aluminum.
11. 11. The artificial collection according to 10 above, wherein the inorganic acid salt is hydrochloride (chloride), sulfate, or nitrate, and the organic acid salt is acetate, lactate, malate, succinate, or citrate. A method for producing feed.
12 12. The method for producing an artificial straw collection feed according to any one of 9 to 11, wherein the coagulant of alginic acid is calcium sulfate, calcium carbonate, calcium hydroxide, calcium phosphate or calcium chloride.
13. 2. The method for producing an artificial straw collection feed according to 1 above, wherein alginic acids are blended in an amount such that the gel strength after solidification of the uniform slurry composition is 200 g to 1500 g.
14 14. The method for producing an artificial straw collection feed according to 13, wherein the blending amount of alginic acids in the uniform slurry composition is 1.0 to 10% by mass.
15. 2. The method for producing an artificial cocoon feed as described in 1 above, wherein the coagulation retarder is blended in such an amount that the slurry composition coagulates in 1 to 3 hours.
16. 16. The method for producing an artificial straw collection feed as described in 15 above, wherein the amount of the coagulation retarder in the uniform slurry composition is 0.01 to 3.0% by mass.
17. 2. The method for producing an artificial straw collection material according to 1 above, wherein a blending amount of the coagulant of alginic acids in the uniform slurry composition is 0.1 to 10.0% by mass.
18. About 40.0 to 99.99% by mass of fishery processing residue of seafood, about 1.0 to 10% by mass of alginic acid and / or a salt thereof (alginic acids), and 0.01 to 3 of a coagulation retarder for algins 0.0% by mass and, if necessary, a uniform slurry composition containing water in an amount of 100% by mass in total of the constituent components, and a coagulant of alginic acid is 0.1% of the uniform slurry composition. A method for producing an artificial straw collection for shrimp fishery, characterized by coagulating a uniformly mixed composition to which ˜10.0 mass% is added.
19. About 40.0 to 99.99% by mass of fishery processing residue mainly composed of the internal organs of walleye pollack, about 1.0 to 10% by mass of sodium alginate, 0.01 to 3.0% by mass of phosphate, and If necessary, calcium sulfate is added in an amount of 0.1 to 10.0% by mass with respect to the uniform slurry composition to a uniform slurry composition containing 100% by mass of the total amount of the composition components. 19. The method for producing an artificial salmon bait for shrimp basket fishery according to 18 above, wherein the composition is solidified by uniform mixing.
20. Artificial salmon collecting feed for shrimp fish obtained by the method according to any one of 1 to 19 above.

According to the present invention, when seafood processed residue of seafood is slurried and gelled with alginic acid and / or a salt thereof (alginic acid) and a polyvalent metal salt, a coagulation retarding agent for alginic acid is used. By adjusting the gelation rate using phosphates, it is possible to produce artificial straw collection feed with good workability.
The artificial sardine feed for shrimp basket fishery of the present invention exhibits a collection effect equivalent to or better than natural foods (live food) such as walleye pollock, and not only shrimp that are the target species of fishery but also shrimp Resistant to eating damage from competing organisms. In other words, the artificial persimmon diet of the present invention has an attracting effect equivalent to that of raw food on shrimp, but shrimp and competing organisms do not substantially eat the perishable food of the present invention gelled with alginic acid. So it can be used repeatedly.
Therefore, the present invention greatly contributes to the stabilization of fishery management through effective utilization of fishery processed residue of fishery products and cost reduction of salmon collection feed.

It is the top view (a) and side view (b) of one example of the basket used for shrimp basket fishery. It is a graph which shows the relationship between the density | concentration of sodium alginate aqueous solution, and gel strength. It is a graph which shows the collection effect of the natural feed (raw feed) (A) of Example 1 and artificial straw collection feed (BF). It is a graph which shows the result of the artificial trap collection test by the ship of the art of Example 2. It is a graph which shows the catch of the shrimp of the natural feed and the artificial dredging feed in the shrimp basket fishery test by the research ship of Example 3, and the consumption rate of those feeds. It is a graph which shows the pink shrimp catch of the natural feed and the artificial trap collection feed in the shrimp basket fishery test by the research ship of Example 3. It is a graph which shows the result of the endurance by the offshore retention of the artificial dredging bait at the survey point 14 in the shrimp basket fishery test of the research ship of Example 4, and a collection effect sustainability examination test. It is a graph which shows the result of the durability and the collection effect sustainability examination by the offshore retention of the artificial collection food in the survey point 15 in the shrimp basket fishery test by the research ship of Example 4. It is a graph which shows the result of the durability test by the offshore retention of the artificial dredging bait in the shrimp basket fishery test of the expert ship of Example 5, and the collection effect sustainability examination test.

The artificial salmon collection material of the present invention will be described in detail below.
[Raw material for collecting feed]
In the present invention, fishery processed residues of various seafoods that have not been effectively used so far are used as raw materials for artificial salmon feed. The seafood for the processed fishery residue that can be used in the present invention is not particularly limited. Examples of the seafood include, but are not limited to, walleye pollack, madara, komai, saury, mackerel, mackerel, anchovy, flounder, yellowtail, yellowtail. , Rockfish, blackfish, smelt, eelfish, waterfowl, salmon, trout, squid, herring, hockey, flounder, horse mackerel, bonito, tuna and scallop.

The fishery processing residues of these seafood are generally internal organs, skins, heads, etc., but depending on the processing method of seafood, for example, the fish itself such as herring after the removal of several offsprings is also targeted. . In addition, not less than a few meats that have lost the commercial value generated in the drying, cutting, weighing, and packaging processes of seasoned dried products made from walleye pollock, flounder, salmon, and squid are also covered.
Among these fishery products processed fishery residues, those containing mainly pollen viscera, hockey viscera, herring viscera and squid viscera are preferred, and those containing mainly polluted viscera are preferred.

  In the present invention, the fishery processed residue of these various seafoods is used as a main ingredient raw material, and meal broth (stick water), crab or scallop broth (concentrated liquid) produced in the fish meal production process can be used in combination.

[Molding substrate]
In the artificial salmon feed of the present invention, the fishery processed fishery residue is ground to form a slurry, and then solidified using a molded base material.

  Molding base materials include alginic acid, sodium alginate, potassium alginate, ammonium alginate, propylene glycol alginate, polyvinyl alcohol, gypsum, gelatin, agar, chitosan, carrageenan, locust bean gum, guar gum, glucomannan, konjac mannan, cement, etc. In addition, it can be molded as a solid by mixing with a polyvalent metal salt without heating or heating, and can be used as long as the shape does not collapse after molding. In consideration of environmental effects such as production cost and biodegradability, water-soluble alginates or alginate esters such as sodium alginate, potassium alginate, ammonium alginate, propylene glycol alginate (this specification Collectively, et al called "alginic acid".) To use.

  When using alginates or alginate esters, the present inventors consider the handling of workers in fishing grounds (the operation of installing food on a shrimp basket), and the amount of the blended composition in the molding composition is that of the aquatic processing residue. It was confirmed that it was appropriate to set the strength (gel strength) when the slurry was solidified and solidified to an amount of 200 to 1500 g.

That is, an aqueous sodium alginate solution in which the concentration of sodium alginate was changed to 0.5 to 50% by mass with respect to water containing 0.1% sodium tripolyphosphate (coagulation retarding agent) was changed to calcium sulfate (coagulant) 1 When an attempt was made to gel at 0.0%, it was found that when the sodium alginate concentration exceeded 10% by mass, it did not become a fluid sol state. A gel sample (30 mmφ × 40 mm: cylindrical gel) prepared from an aqueous solution having a sodium alginate concentration of 0.5 to 10.0% by mass was placed on a rheometer table, and a spherical plunger with a diameter of 5 mm was placed on the rheometer load cell. The sample was pressed against the plunger at a constant speed. At that time, the stress (resistance) applied to the load cell was measured, and the maximum stress at which the gel collapsed was measured as the gel strength (g). The result is as shown in FIG. 2, and the strength of the gel showed a maximum value of about 1500 g when the amount of sodium alginate added was 8.0% by mass. Considering the handling of artificial straw collection food (installation work on the shrimp basket), the gel strength needs to be 200 g or more.
Therefore, from the above experimental results, the addition concentration of sodium alginate is suitably 1.0 to 10.0% by mass, and preferably 2.5 to 8.0% by mass.

[Coagulation retarders of alginic acids]
An aqueous solution of alginic acids reacts and gels immediately when a polyvalent metal salt (coagulant) such as calcium ion is present. Therefore, in the present invention, a coagulant retarder is added to adjust the gelation rate (gelation time) after the addition of the coagulant (that is, to delay to a time suitable for workability).

  As the coagulation retarder, sodium phosphates, organic acid sodiums, and chelating agents of polyvalent metal ions are used. Examples of sodium phosphates include sodium tripolyphosphate, sodium hexametaphosphate, sodium diphosphate, sodium metaphosphate, and trisodium phosphate. Examples of organic acid sodium include sodium citrate, sodium malate, and sodium succinate. Sodium lactate, sodium acetate, sodium glutamate and the like. Examples of the chelating agent for polyvalent metal ions include disodium ethylenediaminetetraacetate (EDTA · 2Na), bipyridine, phenanthroline and the like.

The blending amount of the coagulation retarder in the molding composition can be maintained for about 30 minutes to 1 hour as a fluid in which the molding composition can be freely poured into the molding mold, and the coagulation of the slurry composition is about 1 to 3 hours. This is the amount to be completed.
Although this compounding quantity is based also on the kind of coagulation retarder, it is generally 0.01-3.0 mass% with respect to a molding composition, Preferably it is 0.04-1.0 mass%. If the amount added is too small, it cannot be maintained as a fluid for about 30 minutes. If it is too much, the time that can be maintained as a fluid and the time required for gelation (solidification time) are extended, but the solidification time is remarkable. It is not practical because it becomes long.

  For example, when 0.1% by mass of a coagulation retarder is added to 2.5% by mass of sodium alginate, a mixed solution (sol) homogenized by adding calcium sulfate (coagulant) is free in the mold. The time that can be maintained as a fluid that can be poured into the mold is about 30 to 40 minutes, and after being poured into the mold, it is completely gelled in about 2 hours at room temperature.

[Coagulant]
As a coagulant of a composition containing a seafood processing residue slurry of seafood, alginic acids and a coagulation retarder, calcium sulfate, calcium lactate, calcium chloride, calcium acetate, and a gel solution that reacts with an alginate aqueous solution. The polyvalent metal salt to be converted can be used. Specifically, organic acid salts such as hydrochlorides (chlorides), acetates, sulfates, nitrates, and citric acids of polyvalent metals such as calcium, iron, zinc, tin, copper, manganese, nickel, cobalt, and aluminum In view of the influence on the environment such as production cost and biodegradability, calcium salts such as calcium sulfate, calcium carbonate, calcium hydroxide, calcium phosphate and calcium chloride are preferable.
The blending amount of the alginic acid coagulant in the uniform slurry composition is usually 0.1 to 10.0% by mass, preferably 0.4 to 4.0% by mass, although it depends on the blending amount of the coagulation retarder. %. If the blending amount is less than 0.1% by mass, coagulation is not completed within the desired time, and if it exceeds 10.0% by mass, the fluidized state cannot be maintained for the desired time and coagulates early.

[Manufacturing method of artificial straw collection feed]
The points of the method for producing the artificial straw collection material of the present invention are as follows.
(1) First, a predetermined amount of phosphate as a coagulation retardant is completely dissolved in a small amount of warm water. It is essential to add this coagulation retarder first. Simultaneous addition with a coagulant (calcium salt) is not preferred. This is because when calcium sulfate is added to a solution of sodium alginate, calcium alginate is immediately generated and coagulation is completed, so that it is not possible to take time to fill the mold.
(2) Next, the collected raw materials such as internal organs are mixed and made into a uniform slurry using a chopper, for example.
(3) Next, a predetermined amount of alginate is added and homogenized.
(4) Finally, a predetermined amount of a coagulation retardant (calcium sulfate or the like) is added and homogenized, and immediately after that, a mold (for example, 65.4 cm (vertical) × 45.3 cm (horizontal) × 11.1 cm ( (Height) rectangular mold) and left at room temperature for 1-3 hours to solidify. After coagulation, it is removed from the formwork, cut into a predetermined size (for example, 4 cm × 4 cm × 9 cm) with a cutter, stored in a refrigerator, and used as an artificial trap food for shrimp fishery.

  Hereinafter, the production example of the artificial straw collection feed of the present invention, the example of the shrimp basket fishery using the artificial straw collection feed, and the comparative example using the natural feed (raw feed) will be described. In the following description,% represents mass% unless otherwise specified.

Production Example 1: Manufacture of Artificial Salmon Feeding Material (Artificial Salmon Feeding Material-1) Using Salmonella Viscera as Material Testicles and ovaries) were purchased at the fishery processing plant as waste. This walleye pollen viscera was brought into the processing experiment building in the fisheries test site, and immediately pulverized and homogenized with Mincer (Omido Sangyo Co., Ltd., OMC-22, eye plate diameter 4.5 mm). In addition, when not grind | pulverizing immediately, the internal organs were sealed in a plastic bag in units of about 10 kg, frozen at −20 ° C., and thawed appropriately. Although the crushed internal organs are immediately subjected to the artificial culm feed production process, if not immediately used, they were sealed in a plastic bag in units of about 10 kg and stored frozen at −20 ° C. until the artificial culm food was manufactured.

2) In order to produce 80 kg of artificial straw collection, 2 kg (2.5%) of sodium alginate as a coagulant, 80 g (0.1%) of polymerized phosphate as a coagulation retarder, calcium sulfate as a coagulation accelerator 0.8 kg (1.0%), 37.12 kg (46.4%) of water, and 40 kg (50%) of ground pollen viscera as a collected raw material were used. In this production example, sodium alginate is Argitex H (manufactured by Kimika Co., Ltd., industrial grade), and polymerized phosphate is Tallinsan (manufactured by Ueno Pharmaceutical Co., Ltd., food additive, sodium polyphosphate and pyrophosphoric acid). (Equivalent mixture of sodium) and calcium sulfate were Pearl (Ako Kasei Co., Ltd., food additive).

3) Weigh 37.12 kg of water or hot water (possible up to boiling water temperature) into a bucket (117 L) of a mixer MT-120 (Aikosha Seisakusho Co., Ltd.), and polymerized phosphoric acid as a coagulation retarder After dissolving 80 g of salt, 2 kg of sodium alginate was added and the mixture was stirred and mixed for 10 minutes with a hand mixer PMT-1362A (Ryobi Co., Ltd.) (After mixing, it can be left overnight if necessary) .) To this, 40 kg of ground pollen viscera crushed material, which is a collected raw material, was added, and further stirred and homogenized with a mixer. Thereafter, 0.8 kg of calcium sulfate was added thereto, and the mixture was stirred and homogenized in the same manner to prepare a feed material for artificial collection with a fluid sol state.

4) A gel block of artificial culm feed that solidified after about 1 to 2 hours by pouring the sol state artificial culm feed into a polypropylene square bat NC-23 (made by DIC Plastic Co., Ltd., 654 × 435 × 111 mm). 654 × 435 × 111 mm, 19 kg / bat) (artificial salmon feed-1). This artificial straw collection feed gel block was extracted from the square bat, and a lattice cutter was pushed from the gel portion, and was cut into 126 artificial straw collection feed blocks (4 × 4 × 9 cm) of 150 g per piece. The block of artificial straw collection feed obtained by this cutting was stored frozen at −20 ° C. until it was boxed and subjected to a demonstration test on the ocean.
The contents of water, crude protein, crude fat, carbohydrates and ash in the artificial straw feed are as follows.
Water 76.8%, crude protein 4.7%, crude fat 15.0%, carbohydrate 1.9%, ash 1.6%.

The contents of moisture, crude protein, crude fat, carbohydrate and ash were measured by the following method.
Moisture: Measured by heating and drying at 105 ° C. for 24 hours by a normal pressure heating drying method.
Crude protein: Kjeldahl method was used. That is, after the sample was decomposed with Kjeldahl decomposer K-437 (manufactured by Nihon Büch) in the presence of concentrated sulfuric acid, this was subjected to Kjeldahl analyzer B-399 (manufactured by Nihon Büch) to determine the amount of nitrogen. This value was obtained by multiplying 6.25.
Crude fat: Extracted with diethyl ether and quantified by the method of Soxhlet.
Carbohydrate: A value obtained by subtracting the content (%) of water, crude protein, crude fat and ash from 100% was defined as carbohydrate.
Ash content: The sample was quantified by heating and drying at 550 ° C. for 5 hours by a direct ashing method.

Manufacture example 2: Manufacture of artificial culm feed (artificial culm feed-2) using squid internal organs as raw material 1) Green squid viscera (digestive organs such as liver, stomach, intestine and pancreas and gonads) as raw material We purchased what was discharged as waste on the ground. The cuttlefish viscera was brought into the processing experiment building in the fisheries test site and immediately pulverized and homogenized with Mincer (manufactured by Daido Sangyo Co., Ltd., OMC-22, eye plate diameter 4.5 mm). If the internal organs could not be pulverized immediately, the internal organs were sealed in a plastic bag in units of about 10 kg, frozen at -20 ° C., and thawed appropriately.

2) In order to produce 80 kg of artificial straw collection, 2 kg (2.5%) of sodium alginate as a coagulant, 80 g (0.1%) of polymerized phosphate as a coagulation retarder, calcium sulfate as a coagulation accelerator 0.8 kg (1.0%), 41.36 kg (51.7%) of water, and 35.76 kg (44.7%) of ground squid viscera as a collected raw material were used. In this production example, sodium alginate is Argitex H (manufactured by Kimika Co., Ltd., industrial grade), and polymerized phosphate is Tallinsan (manufactured by Ueno Pharmaceutical Co., Ltd., food additive, sodium polyphosphate and pyrophosphoric acid). (Equivalent mixture of sodium) and calcium sulfate were Pearl (Ako Kasei Co., Ltd., food additive).

3) 41.36 kg of water or hot water (possible up to boiling water temperature) is weighed into a bucket (117 L capacity) of a mixer MT-120 (Aikosha Seisakusho Co., Ltd.). After dissolving 80 g, 2 kg of sodium alginate was added, and the mixture was stirred and mixed for 10 minutes with a hand mixer PMT-1362A (Ryobi Co., Ltd.) and homogenized (after mixing, it may be left overnight if necessary). . To this was added 35.76 kg of ground squid viscera crushed material, which was further collected and further stirred and homogenized with a mixer. Thereafter, 0.8 kg of calcium sulfate was added thereto, and the mixture was stirred and homogenized in the same manner to prepare a feed material for artificial collection with a fluid sol state.

4) The above-described artificial cocoon feed in the sol state was poured into a polypropylene square vat NC-23 (made by DIC Plastic Co., Ltd., 654 × 435 × 111 mm) and coagulated after about 1 to 2 hours. × 435 × 111 mm, 19 kg / bat) (artificial straw collection feed-2) was obtained. This artificial straw collection bait gel block is extracted from a square bat and cut into a size of 20 x 20 x 30 mm with a kitchen knife, and this is drained into a commercially available drain bag net bag (polyethylene, 180 x 250 mm, Morimasu Kogyo Co., Ltd.) About 100 g was weighed and the bag mouth was heat-sealed. The aforementioned bag containing 100 g of artificial straw collection feed was defined as one artificial straw collection feed.
This artificial straw collection feed was stored frozen at −20 ° C. until it was boxed and subjected to a demonstration test on the ocean.
Ingredients of artificial salmon feed-2 measured in the same manner as in Production Example 1 are as follows.
Water 72.2%, crude protein 3.5%, crude fat 14.5%, carbohydrates 1.5%, ash 3.3%.

Manufacture example 3: Manufacture of artificial salmon-collecting food (artificial salmon-collecting food-3) using squid internal organs, fish skin and meal broth as raw materials 1) Digestive organs and reproductive organs such as liver, stomach, intestine and pancreas Nest), walleye fish skin (hereinafter referred to as fish skin), and boiled juice (hereinafter referred to as meal broth) containing an extract component produced at a fish meal manufacturing plant were used. Of these collected raw materials, the squid viscera and fish skin are brought into the processing experiment building in the fisheries test site, and then immediately crushed with Mincer (OMC-22, manufactured by Daido Sangyo Co., Ltd., 4.5 mm diameter). Turned into.
In addition, when it cannot pulverize immediately, the internal organs or fish skin was sealed in a plastic bag in units of about 10 kg, frozen at −20 ° C., appropriately thawed and pulverized. Further, the meal broth was dispensed into an 18 L plastic tank and stored frozen at -20 ° C. until the start of the production of salmon collection.

2) In order to produce 80 kg of artificial straw collection, 2 kg (2.5%) of sodium alginate as a coagulant, 80 g (0.1%) of polymerized phosphate as a coagulation retarder, calcium sulfate as a coagulation accelerator 0.8kg (1.0%), 43.52kg (54.4%) of water, 11.20kg (14.0%) of ground squid viscera, which is a raw material for collection, and 11.20kg (14%) of ground fish skin 1.0%) and 11.20 kg (14.0%) of meal broth. In this production example, sodium alginate is Kimitsu Argin I-3G (manufactured by Kimika Co., Ltd., food additive), and polymerized phosphate is Tallinsan (manufactured by Ueno Pharmaceutical Co., Ltd., food additive, sodium polyphosphate and pyrolin) (Equivalent mixture of sodium acid) and calcium sulfate were Pearl (Ako Kasei Co., Ltd., food additive).

3) Weigh 37.12 kg of water or hot water (possible up to boiling water temperature) into a bucket (117 L) of a mixer MT-120 (Aikosha Seisakusho Co., Ltd.), and polymerized phosphoric acid as a coagulation retarder After dissolving 80 g of the salt, 2 kg of sodium alginate was added, and the mixture was stirred and mixed for 10 minutes with a hand mixer PMT-1362A (Ryobi Co., Ltd.). After mixing, it was allowed to stand overnight if necessary. ). To this, 11.20 kg of ground squid viscera pulverized material, 11.20 kg of fish skin crushed material and 11.20 kg (14.0%) of broth of meal were added and further stirred and homogenized with a mixer. Thereafter, 0.8 kg of calcium sulfate was added thereto, and the mixture was stirred and homogenized in the same manner to prepare a feed material for artificial collection with a fluid sol state.

4) The artificial culm food feed in the sol state described above was poured into a polypropylene square vat NC-23 (DIC Plastic Co., Ltd., 654 × 435 × 111 mm) and solidified after about 1 to 2 hours (654 × 435). × 111 mm, 19 kg / bat) (artificial straw collection 3). This artificial straw collection bait gel block is extracted from a square bat, cut into a size of 20 x 20 x 30 mm with a kitchen knife, and this is drained into a domestic drain outlet net bag (polyethylene, 180 x 250 mm, Morimasu Kogyo Co., Ltd.) About 100 g was weighed and the bag mouth was heated and sealed. The aforementioned bag containing 100 g of artificial straw collection feed was defined as one artificial straw collection feed.
This artificial straw collection feed was stored frozen at −20 ° C. until it was boxed and subjected to a demonstration test on the ocean.
Ingredients of artificial straw collection material-3 measured in the same manner as in Production Example 1 are as follows.
Water 83.9%, crude protein 6.0%, crude fat 2.7%, carbohydrate 1.7%, ash 5.7%.

Example 1: A shrimp fishery test by a research ship using artificial salmon collection feed In the sea area 250-500m in the water west of Rishiri Rebun Island, a shrimp basket catch test using artificial salmon feed by the Wakkanai Fisheries Test Site Survey Ship Hokuyomaru Went.
As a persimmon collection feed, about 450 g of walleye pollack (comparative natural feed) (feed A) and 600 g (150 g / piece × 4) of artificial persimmon collection feed 1 obtained in Production Example 1 (feed B), 300 g per basket 75 g / piece × 4) (feed C), 400 g (100 g / bag × 4 bags) (feed D) of the artificial straw collection 2 obtained in Production Example 2, and the artificial straw collection-3 obtained in Production Example 3 400 g (100 g / bag × 4 bags) (feed E) and 200 g (100 g / bag × 2 bags) (feed F) were used. Natural feed for comparison (Food A) is divided into 1 portion (average weight of about 450 g) per basket (divided into the head and tail sides by cutting at the center of the body), Put it in a food bag.

  The number of shrimp baskets per survey point is 120 in total, 30 baskets are used for each feed, and 30 baskets with natural food for comparison (Food A) are installed at all survey points. Then, the following survey points No. 1 to 20 laid as follows were prepared.

Survey point No. 1: A = 30 cage, B = 30 cage, C = 30 cage, D = 30 cage Survey point No. 2: A = 30 cage, B = 30 cage, C = 30 cage, E = 30 cage Survey point No.3: A = 30 basket, B = 30 basket, C = 30 basket, F = 30 basket Survey point No.4: A = 30 basket, B = 30 basket, D = 30 basket, E = 30 basket Survey point No. 5: A = 30 cage, B = 30 cage, D = 30 cage, F = 30 cage Survey point No. 6: A = 30 cage, B = 30 cage, E = 30 cage, F = 30 cage Survey point No. 7: A = 30 basket, C = 30 basket, D = 30 basket, E = 30 basket Survey point No. 8: A = 30 basket, C = 30 basket, D = 30 basket, F = 30 basket Survey point No. 9: A = 30 cage, C = 30 cage, E = 30 cage, F = 30 cage Survey point No. 10: A = 30 cage, D = 30 cage, E = 30 cage, F = 30 cage Survey point No. 11: A = 30 cage, B = 30 cage, C = 30 cage, D = 30 cage Survey point No. 12: A = 30 cage, B = 30 cage, C = 30 cage, E = 30 cage Inspection point No. 13: A = 30 car, B = 30 car, C = 30 car, F = 30 car Inspection point No. 14: A = 30 car, B = 30 car, D = 30 car, E = 30 car Survey point No. 15: A = 30 cage, B = 30 cage, D = 30 cage, F = 30 cage Survey point No. 16: A = 30 cage, B = 30 cage, E = 30 cage, F = 30 cage Survey point No. 17: A = 30 basket, C = 30 basket, D = 30 basket, E = 30 basket Survey point No. 18: A = 30 basket, C = 30 basket, D = 30 basket, F = 30 basket Survey point No. 19: A = 30 cage, C = 30 cage, E = 30 cage, F = 30 cage Survey point No. 20: A = 30 cage, D = 30 cage, E = 30 cage, F = 30 cage

  To facilitate identification of the type of food attached to the car, colored vinyl tape was wrapped around the hand bar of the car to mark it. The basket with each feed was randomly connected to a branch rope and laid on the seabed. The installation time was about 20 to 21 hours (10 to 11:00 am in the cage, 7 to 8 am on the next day of the deep-fried basket). For randomization, a random number was generated by a computer installed in the fishery test site before the start of the test, and the order of attaching the baskets of the natural feed and each artificial rod collection feed was determined in advance. The next day, fishing gear was collected, and the number of catches of pink lobster per cage was counted. For 30 cages fitted with each feed, the number of catches of pink shrimp in each cage was measured individually, and the median number of catches of pink shrimp in 30 cages was taken as the representative value of the number of catches of that feed.

As for the natural feed (Food A), the median value of the number of pink shrimp fish caught in 30 baskets was determined and used as the representative value of the catch of natural feed.
Table 1 and FIG. 3 show the results of calculating how much the representative value of each artificial straw collection feed corresponds when the representative value of natural feed is 1.

[State of food after pulling up]
The state of the natural feed (A) and the artificial straw collection feed (feeds B to F) after raising the basket was as follows.
Natural feed (A): In many cases, the edible portion was completely consumed only with fish bones. At survey points where the catch of pink shrimp was small, there were cases in which around 80% of the pre-use remained.
Artificial straw collection feed (feeds B to F): At almost any point of investigation, the shape remained almost unchanged, and no extreme consumption was observed.

Example 2: Artificial dredging feed implementation test by a ship in the field A fishing test using the artificial dredging feed (B) considered to be effective in Example 1 by a test research ship was conducted on the northern rumo fishery cooperative affiliated shrimp cage ship. went.
The number of shrimp boats participating in the catch test was six (a, b, c, d, e, f).
The usage of artificial dredging bait was set at 600 g per car, and the amount used for the survey sea area and comparative natural bait was not strictly determined, but compared with the normal operating conditions of ships of ordinary skill in the art.
A total of 400 baskets, 370 baskets with natural feed and 30 baskets with artificial bait collection feed B, were laid in an arbitrary fishing ground.

Herring was used as a natural feed on each ship. The number of herrings used per car varied from ship to ship and ranged from 4 to 15 animals per car. The boats a to d and f of the art set the fishing gear on the seabed for two days, and the boat e of the art set for one day.
After the fried basket, the number of pink tiger shrimp caught in 10 shrimp baskets of natural feed and artificial straw collection feed (B) was counted. The result is shown in FIG. From Fig. 4, 2 out of 6 vessels (a and f) had almost the same number of catches for natural feed (herring) and artificial bait feed (B), but for 4 vessels (be-e) The number of fish catches of the artificial rod collection feed (B) is much larger than that of natural feed, and the remarkable collection effect of the artificial rod collection feed of the present invention is clear.

[State of food after pulling up]
The state of the natural feed and the artificial straw collection feed (B) after raising the basket was as follows.
Natural feed (herring): In many cases, the edible portion was completely consumed only with fish bones. At survey points where the catch of pink shrimp was small, there were cases in which around 80% of the pre-use remained.
Artificial straw collection feed (B): At almost any survey point, the shape remained almost unchanged, and no extreme consumption was observed.

Example 3: Consumption rate of artificial bait collected in the shrimp cage fishery test by a research ship and a test of measuring the amount of leaf shrimp (competitive organisms that feed on the feed) fish Rishiri Rebun Island west, Wakkanai Fisheries Experiment Station The research vessel Hokuyo Maru conducted a shrimp basket catch test for the purpose of investigating the corrosion resistance of shrimp using artificial salmon feed.
As a persimmon collection feed, about 450 g of walleye pollack (comparative natural feed) (feed A) and 600 g (150 g / piece × 4) of artificial persimmon collection feed-1 obtained in Production Example 1 (feed B) were used. . Natural feed for comparison (Food A) is divided into 1 portion (average weight of about 450 g) per basket (divided into the head and tail sides by cutting at the center of the body), Put it in a food bag.

  The total number of shrimp baskets per survey point is 60, with 30 comparative natural feeds (Food A) and 30 artificial straw collection feed-1 (Feed B), and the following survey points laid as follows: No. 1 to 13 were prepared. In addition, the basket used for the comparative natural feed (Food A) has a mesh size of about 5.2 mm × 5.2 mm (commonly known as mesh length 30 clauses) so that the shrimp collected in the basket will not fall out of the cage. Wore a net.

Survey point No. 1: A = 30 basket, B = 30 basket Survey point No. 2: A = 30 basket, B = 30 basket Survey point No. 3: A = 30 basket, B = 30 basket Survey point No. 4 : A = 30 car, B = 30 car Survey point No. 5: A = 30 car, B = 30 car Survey point No. 6: A = 30 car, B = 30 car Survey point No. 7: A = 30 car , C = 30 basket Survey point No. 8: A = 30 basket, C = 30 basket Survey point No. 9: A = 30 basket, C = 30 basket Survey point No. 10: A = 30 basket, D = 30 basket Survey point No. 11: A = 30 cage, B = 30 cage Survey point No. 12: A = 30 cage, B = 30 cage Survey point No. 13: A = 30 cage, B = 30 cage

  To facilitate identification of the type of food attached to the car, colored vinyl tape was wrapped around the hand bar of the car to mark it. The basket with each feed was randomly connected to a branch rope and laid on the seabed. The installation time was about 20 to 21 hours (10 to 11:00 am in the cage, 7 to 8 am on the next day of the deep-fried basket). For randomization, a random number was generated by a computer installed in the fishery test site before the start of the test, and the order of attaching the baskets of the natural feed and each artificial rod collection feed was determined in advance. The next day, the fishing gear was collected, and the number of catches of pink tiger shrimp per cage and the consumption rate of the artificial rodent feed (Food B) were counted. For 30 cages with each bait, measure the number of catches of pink shrimp in each cage individually, and the median number of catches of pink shrimp in 30 cages is the number of catches of the artificially collected feed (feed B) at that survey point. Representative values were used. Moreover, the consumption rate of each feed was performed as follows. The food remaining in the cage raised from the seabed was taken out, and all of this was arranged on the deck of the survey ship, and the total residual food in the 30 cages was recorded as image data. The number of remaining foods was measured from the recorded image, and this value was divided by the total number of foods before use, and then multiplied by 100 to obtain the remaining food rate (%).

For the natural feed (Food A), the consumption rate of the natural feed per car was measured in the same manner, and at the same time, the median number of pink tiger shrimp fish caught in 30 cars was determined and used as the representative value of the catch of natural feed. In addition, for 30 baskets fitted with natural feed (Food A), the catch (g) of the shrimp in each car was measured individually, and the median fish shrimp catch in the 30 car at the survey point It was set as the representative value of the fish size (g).
Fig. 5 shows the relationship between the amount of shrimp fish caught at each survey point and the consumption rate of feed, and Fig. 6 shows the number of pink shrimp catches per cage of natural feed (Food A) and artificial bait feed (Food B). .

The catch of shrimp at each survey point is the highest at survey point 1 with 70g or more. The order was 6, 12, 11, 10 and 13, and the other survey points were 10 g or less. Looking at the consumption rate of the feed, the natural feed (Food A) showed a tendency to increase at the survey point where the amount of fish shrimp was high. No. 1 has a consumption rate of 43% and survey point no. Nos. 5 and 6 are about 30% and 40%, respectively. In 10 and 11, it was 90%, almost close to fish bones.
On the other hand, in the artificial straw collection feed (Food B), no significant consumption was observed at any of the survey points, and the consumption rate remained between 0 and 10% (FIG. 5).

  Comparing the catch of pink shrimp with natural feed (feed A) and artificial straw collection (feed B), In 3, 8, and 12, the natural feed (Food A) was slightly higher than the artificial bait feed (Food B), but at all other survey points, the artificial feed (Food B) was natural feed (Food). A catch that is equal to or higher than A) is shown. 10 and 11 were more than 5 times different (FIG. 6).

  From the above results, the artificial straw collection feed (Food B) has a gathering effect on the pink shrimp that is equal to or higher than the natural feed (Foot A), and the consumption rate shows a stable and low value of 0-10%. From this, it was found that the corrosion resistance to the shrimp is far superior to that of the natural feed (Feed A). Therefore, the remarkable corrosion resistance with respect to the leaf shrimp of the artificial straw collection of this invention is clear.

Example 4: Examination of durability and collection effect sustainability by offshore retention of artificial dredging feed in a shrimp basket fishery test by a research ship In the sea area 400-500 m deep in Rishiri Rebun Island, the survey ship Hokuyomaru belonging to the Wakkanai Fisheries Test Site Based on the above, a shrimp basket catch test was conducted for the purpose of examining the durability of artificial salmon feed.
As a persimmon collection feed, about 450 g of walleye pollack (comparative natural feed) (feed A) and 600 g (150 g / piece × 4) of artificial persimmon collection feed-1 obtained in Production Example 1 (feed B) were used. . Natural feed for comparison (Food A) is divided into 1 portion (average weight of about 450 g) per basket (divided into the head and tail sides by cutting at the center of the body), Put it in a food bag.

  The total number of shrimp baskets per survey point is 60, with 30 comparative natural feeds (Food A) and 30 artificial straw collection feed-1 (Feed B), and the following survey points laid as follows: No. 14 and 15 were prepared.

  To facilitate identification of the type of food attached to the car, colored vinyl tape was wrapped around the hand bar of the car to mark it. The basket with each feed was randomly connected to a branch rope and laid on the seabed. For durability studies, installation time is offshore 1 day: about 20-21 hours (10-10 am in the basket, 7-7 am on the next day), 2 days: about 44-45 hours (insert 10 to 11:00 am in the cage, 7 to 8 am in the next day, and 4th day: about 93 to 93 hours (10 to 11:00 am in the cage, 7 to 8 in the morning after 4 days) . For randomization, a random number was generated by a computer installed in the fishery test site before the start of the test, and the order of attaching the baskets of the natural feed and each artificial rod collection feed was determined in advance. After the installation time, the fishing gear was collected, and the number of catches of the pink red shrimp per cage and the consumption rate of the artificial trap food (Food B) were counted. For 30 cages with each bait, measure the number of catches of pink shrimp in each cage individually, and the median number of catches of pink shrimp in 30 cages is the number of catches of the artificially collected feed (feed B) at the survey point. Representative values were used. Moreover, the consumption rate of each feed was performed as follows. The food remaining in the cage raised from the seabed was taken out, and all of this was arranged on the deck of the survey ship, and the total residual food in the 30 cages was recorded as image data. The number of remaining foods was measured from the recorded image, and this value was divided by the total number of foods before use, and then multiplied by 100 to obtain the remaining food rate (%).

For the natural feed (Food A), the consumption rate of the natural feed per car was measured in the same manner, and at the same time, the median number of pink tiger shrimp fish caught in 30 cars was determined and used as the representative value of the catch of natural feed.
Survey point no. Pink shrimp per cage of natural feed (Food A) and artificial straw collection (Feed B) on each offshore days (1st, 2nd, 4th) in 14 (St.14) and 15 (St.15) The number of fish caught and the feed consumption rate are shown in FIGS. 7 and 8, respectively.

  The consumption rate of natural feed (Food A) is the survey point no. 14 (St.14) increases to 10% on the offshore day, 27% on the second day, and rapidly increases to 83% on the fourth day, and more than 80% of the total is in the state of only fish bones. It was. On the other hand, the consumption rate of artificial straw collection feed (Food B) was 0% until the 2nd day offshore, and even on the 4th day, the value remained significantly low at 3%. In addition, looking at the catch of pink lobster per cage at the same survey point, until the second day offshore, there was no significant difference between the natural feed (Food A) and the artificial feed (Food B). On the 4th day, natural feed (Food A) showed 21 fishes and artificial straw collection (Food B) showed 28 fish, which was a high value for artificial feed (Food B) (FIG. 7).

  Survey point no. 15 (St. 15), the consumption rate of natural feed (Food A) increased to 0% on the offshore day 1 and 24% on the second day, and rapidly increased to 93% on the fourth day. More than 90% became only fish bones. However, the consumption rate of the artificial straw collection feed (Food B) was 0% even on the fourth day offshore, and no consumption was observed. In addition, looking at the catch of pink lobster per cage at the same survey point, until the second day offshore, there was no significant difference between the natural feed (Food A) and the artificial feed (Food B). On the 4th day, there were 9 natural feeds (Food A), while the artificial straw collection feed (Food B) showed a remarkably high value of 33. (FIG. 8).

Natural feed (Feed A) consumes 24-27% of the feed on the second day offshore, and more than 80% is consumed on the fourth day, whereas artificial feed (Feed B) is offshore 2 No consumption was observed on the day, and the consumption rate was 3% or less even on the fourth day. In addition, 97% or more of the artificial bait collected remains on the 4th day offshore, so it is possible to collect the pink shrimp. As a result, the catch of the pink shrimp is higher than that of the natural feed (feed A). It turned out to be high.
Therefore, even if the artificial dredging feed of the present invention is kept on the seabed for 4 days, the pink shrimp can be collected without breaking the shape, so the artificial dredging feed of the present invention possesses durability in the sea and durability of the collecting effect. It is clear to do.

Example 5: Durability and collection effect sustainability test by offshore retention of artificial dredging feed in a shrimp basket fishery test by a ship of ordinary skill in the Echigo ship belonging to Yoichi-gun Fisheries Cooperative Association For the purpose of studying durability and collecting effect persistence of offshore artificial bait forage using an artificial dredging bait feed (Bait B) went.

  The number of shrimp boats participating in the catch test was one. In this test, it was carried out on a scale according to the actual operation. For the usage of artificial straw collection feed (Food B), 600g (150g / piece x 4 pieces) per basket, for natural feed for comparison (Food A), one walleye pollock per basket (average weight about 450g), etc. Divided into minutes (cut at the center of the torso and divided into the head and tail sides), and each was placed in a food bag. The operating sea area was not strictly defined, and it was decided to compare it with natural feed in the normal operating state of a ship of ordinary skill in the art.

  The trunk rope 1 used in this operation was connected with 500 shrimp baskets via branch ropes, and natural feed (feed A) was installed on all 500 shrimp baskets. On the other hand, another trunk rope 2 to which 500 shrimp baskets were connected was prepared, and artificial straw collection feed (feed B) was installed on all shrimp cages connected to the trunk rope 2. Trunks 1 and 2 were installed in almost the same operating sea area, and shrimp cages connected to each trunk line were laid on the seabed.

  In order to examine durability and sustainability of the harvesting effect, we compared the catch of pink tiger shrimp when the artificial culm feed (feed B) used once was compared with the catch of pink tiger shrimp by the unused natural feed (feed A). First, the installation time is 4 days offshore: about 92 to 93 hours (10 to 11 am in the basket, 7 to 8 am after 4 days). The catch (kg) of the pink shrimp per 500 shrimp baskets was measured.

[State of food after pulling up]
The state of the natural feed (A) and the artificial straw collection feed (feed B) after the car was lifted on the 4th day was as follows.
Natural feed (A): The edible part was completely consumed only by the fish bones, and it was impossible to reuse.
Artificial straw collection feed (Feed B): All artificial feeds remained in their original form and could be reused.

Next, 600g (150g / piece x 4 pieces) per basket was similarly installed on 500 shrimp cages connected to the trunk rope 2 again, as well as artificial bait collecting feed (Food B) that was used once on the 4th day of offing. .
On the other hand, the natural feed (feed A) as a control was set as follows. In other words, after removing the remaining food (fish bones) from 500 shrimp cages 1 pulled up after 4 days offshore, a new unused walleye (average weight about 450 g) was equally divided. (Cut at the center of the body and divided into the head side and the tail side), and each was placed in a food bag in the shrimp basket. Trunks 1 and 2 were installed in almost the same operating sea area, and shrimp cages connected to each trunk line were laid on the seabed.

  Artificial dredging bait used on offshore 4 days (Food B) is equivalent to offshore retention 6 days in total: about 44 to 45 hours (Food B is about 140 to 141 hours in total) 10-10 am in the cage and 7-8 am in the fried cage the next day) The catch of pink tiger shrimp per 500 shrimp cages of natural feed (Food A) and reclaimed artificial salmon feed (Feed B) (Kg) was measured.

[State of food after pulling up]
The state of the natural feed (Food A) and the artificial straw collection feed (Food B) after lifting the cage on the 6th day offshore was as follows. In addition, since the natural feed (Feed A) was installed unused, it corresponds to 2 days offshore.
Natural feed (feed A): The edible portion was completely consumed only by the fish bones.
Artificial straw collection feed (Food B): All retained about 80% of the original shape.

  Fig. 9 shows the catch (kg) of pink tiger shrimp per 500 shrimp baskets of natural feed (feed A) and artificial dredging feed (feed B) for each offshore period (4 days and 6 days) in the operating area of a ship of ordinary skill in the art. Shown in

On the 4th day offshore, natural feed (Food A) and artificial salmon feed (Feed B) catches of pink tiger shrimp showed 42 kg and 43 kg, respectively. It was. In addition, it was judged that the natural feed (Food A) was in the state of only fish bones on the 4th day of offshore retention, and no longer has a function of collecting pink shrimp. In addition, on the 6th offshore day, the catch of pink tiger shrimp of unused natural feed (Food A) is 69kg, whereas the artificial bait feed (Food B) is used on the 4th offshore day. Regardless, the catch was 70 kg, which was slightly higher than the natural feed (Food A).
From the above results, even if the artificial straw collection feed of the present invention is kept on the seabed for 4 days, it is possible to collect the pink shrimp without breaking the shape and at least as much as natural feed, and the artificial straw collection food kept on the seabed for 4 days It is clear that the artificial salmon-collecting feed of the present invention possesses durability in the sea and the sustainability of the harvesting effect, even if it is reused and kept on the seabed for two more days. It is.

Claims (20)

  A composition in which a coagulant of alginic acid is added to a uniform slurry composition containing seafood processing residue of seafood, alginic acid and / or a salt thereof (alginic acid), and a coagulation retarder of algin, and uniformly mixed A method for producing an artificial trapping feed for shrimp fishery that is more durable against competing organisms than natural feed and has a sustained trapping effect on the catch target.   Seafood is walleye pollock, madara, komai, saury, mackerel, sardine, anchovy, flounder, yellowtail, pheasant fish, sea bream, black soy, smelt, kingfisher, squidfish, waterfowl, salmon, trout, squid, herring, hokke, flounder, horse mackerel, The method for producing an artificial salmon bait feed according to claim 1, selected from one or more of bonito, tuna and scallop.   The fishery processing residue of fish and shellfish is made of walleye pollack viscera, madara viscera, komai viscera, mackerel viscera, mackerel viscera, sardine viscera, anchovy viscera viscera, yellowtail viscera Internal organs, internal organs of black soi, internal organs of scorpionfish, internal organs of eelfish, internal organs of waterfish, internal organs of salmon, internal organs of salmon, internal organs of squid, internal organs of herring, internal organs of hokke, internal organs of flatfish, internal organs of horse mackerel, The method for producing an artificial salmon-collecting feed according to claim 2, wherein the main ingredients are bonito viscera, tuna viscera and scallop viscera.   The method for producing an artificial salmon collecting feed according to claim 3, wherein the fishery processed residue of seafood is mainly composed of the internal organs of walleye pollock.   The method for producing an artificial culm feed according to claim 1, wherein the alginic acid is at least one selected from alginic acid, sodium alginate, potassium alginate, ammonium alginate, and propylene glycol alginate.   The method for producing an artificial salmon bait according to claim 5, wherein the alginic acid is sodium alginate.   The method for producing an artificial straw collection feed according to claim 1, wherein the coagulation retarder of alginic acids is selected from sodium phosphates, organic acid sodiums, and chelating agents of polyvalent metal ions.   Sodium phosphates are selected from sodium tripolyphosphate, sodium hexametaphosphate, sodium phosphate, sodium metaphosphate and trisodium phosphate, and organic acid sodium is sodium citrate, sodium malate, sodium succinate, sodium lactate The method for producing an artificial straw collection feed according to claim 7, wherein the chelating agent of polyvalent metal ions selected from sodium acetate and sodium glutamate is disodium ethylenediaminetetraacetate (EDTA · 2Na), bipyridine or phenanthroline.   2. The method for producing artificial artificial bait feed according to claim 1, wherein the coagulant of alginic acid is selected from polyvalent metal salts that coagulate an aqueous solution of alginic acid.   The method for producing artificial artificial bait feed according to claim 9, wherein the polyvalent metal salt is an inorganic acid salt or organic acid salt of a metal selected from calcium, iron, zinc, tin, copper, manganese, nickel, cobalt, and aluminum. .   The inorganic acid salt is hydrochloride (chloride), sulfate, or nitrate, and the organic acid salt is acetate, lactate, malate, succinate, or citrate. A method for producing artificial straw collection feed.   The method for producing an artificial straw collecting feed according to any one of claims 9 to 11, wherein the coagulant of alginic acid is calcium sulfate, calcium carbonate, calcium hydroxide, calcium phosphate or calcium chloride.   The method for producing an artificial straw collection feed according to claim 1, wherein alginic acids are blended in such an amount that the gel strength after coagulation of the uniform slurry composition is 200 g to 1500 g.   The method for producing an artificial straw collection feed according to claim 13, wherein a blending amount of alginic acids in the uniform slurry composition is 1.0 to 10% by mass.   The method for producing an artificial salmon bait feed according to claim 1, wherein the coagulation retarder is blended in such an amount that the slurry composition coagulates in 1 to 3 hours.   The method for producing an artificial straw collection feed according to claim 15, wherein the amount of the coagulation retarder in the uniform slurry composition is 0.01 to 3.0% by mass.   The method for producing an artificial straw collection feed according to claim 1, wherein a blending amount of the coagulant of alginic acids in the uniform slurry composition is 0.1 to 10.0% by mass.   About 40.0 to 99.99% by mass of fishery processing residue of seafood, about 1.0 to 10% by mass of alginic acid and / or a salt thereof (alginic acids), and 0.01 to 3 of a coagulation retarder for algins 0.01% by mass and water in a uniform slurry composition containing 100% by mass of the total amount of the constituent components, and a coagulant of alginic acid is 0.1 to 10.0 with respect to the uniform slurry composition. A method for producing an artificial straw collection for shrimp fishery, characterized by solidifying a composition that is added by mass% and uniformly mixed.   About 40.0 to 99.99% by mass of fishery processing residue mainly composed of the internal organs of walleye pollack, about 1.0 to 10% by mass of sodium alginate, 0.01 to 3.0% by mass of phosphate, and Calcium sulfate is added in an amount of 0.1 to 10.0% by mass with respect to the uniform slurry composition to a uniform slurry composition containing 100% by mass of the total composition constituents, and mixed uniformly. The method for producing an artificial straw collection for shrimp fishery according to claim 18, wherein the composition is solidified.   Artificial salmon collecting feed for shrimp fish obtained by the method according to claim 1.

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