JPH0646710A - Method for culturing pearl - Google Patents

Abstract

PURPOSE:To improve efficiency of high-quality pearl formation in pearl culture and to make pearl formation possible in a schoolroom of science or common household. CONSTITUTION:A pearl oyster after nucleus charging operation is immediately put in a sea water tank having high-purity sea water prepared by filtering natural sea water to remove very small impurities of >=1 micron size. A multiplication solution of plankton obtained by artificially growing plankton in 8,000,000 planktons in 1cc is added to the sea water tank. The pearl oyster is protectively cultured for 2-14 days and returned to natural sea water to culture pearl. A frozen multiplication solution of plankton is added to a pearl oyster charged with a nucleus put in a small-sized water tank and the pearl is cultured in the small-sized water tank.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method for culturing pearls.

[0002]

2. Description of the Related Art A method for culturing pearls is to insert a nucleolus, which is the core of a pearl, into a shell of a pearl oyster or the like, and then put it in the natural sea to cultivate it. The aquaculture method of forming a spherical pearl by winding a pearl layer around the core is adopted. And the seawater temperature of the core insertion work is 15 ℃ ~
The time of 20 ° C is the most suitable, and the shellfish nucleated at this seawater temperature time are immediately returned to the sea and stored in the aquaculture basket or hung on a band body and cultivated in the natural sea, It is a culture method in which pearls are secreted around the nucleus inserted into the body to form pearls.

[0003]

The above-mentioned conventional method for culturing pearls is such that a scalpel is put into a shell body for incision at the time of core insertion work, and a core having a diameter of about 5 to 6 is added to the incised portion. Since it is artificially inserted, the shellfish that has undergone the nucleus insertion work has an incision and is in a state in which its physical strength has declined. Natural seawater with a water temperature of 15 ° C to 20 ° C that is returned in that state has many microscopic impurities (miscellaneous bacteria and microscopic foreign materials in the sea), and in recent years, the microscopic impurities increase due to seawater contamination, although they vary depending on the region. Therefore, the shellfish in the above state,
Due to the influence of such minute impurities, a considerable number of incision wounds may be insufficiently healed or their physical strength may be delayed. There is a difficulty in becoming defective.

The present invention provides a method for culturing pearls which solves the above-mentioned conventional problems.

[0005]

[Means for Solving the Problems] The present invention for solving the above technical problems is described as follows. "A seawater tank containing high-purity seawater obtained by filtering natural seawater to remove minute impurities is provided with a nucleolus that becomes a core of a pearl. Immediately after the nucleus insertion work, the artificially inserted nucleating shells are placed, and the plankton growth solution in which the plankton is artificially propagated is placed in the seawater tank and protected and cultivated to heal the incision associated with the nucleation. And recovering physical strength, and then,
It is a method of culturing pearls, which is characterized by returning to the natural sea and culturing pearls. "

[0006] More specifically, the filtered seawater is, for example, high-purity seawater from which minute impurities of 1 micron or more are removed by a mechanical filtration device, and the plankton growth liquid has 8 million planktons per cc ( The number of plankton in natural seawater at a temperature of 15 ° C to 20 ° C in the Shima Peninsula, Mie Prefecture, is about 150 to 200 per cc), and the like, which is artificially and densely grown. Then, for example, to 50 liters of the high-purity seawater, the plankton breeding solution of 1,000 cc is administered about twice a day, and the high-purity seawater is protected and cultivated for about 2 to 14 days in a seawater tank. After confirming the healing of the incision and the recovery of physical strength (these confirmations are judged by visual confirmation of the wound and the condition of the assimilation), the pearls are cultured in the natural sea.

As an embodiment or application of the above invention, the above plankton growth solution is frozen and stored, and the frozen state is administered, or the frozen plankton growth solution and the nucleated shells are used. As a set, they are transported to areas / locations other than pearl farms, and in a science classroom of a school or a general household, put a core shell in a small salt water tank with a purifier.
The frozen plankton growth solution is administered to cultivate pearls.

[0008]

According to the above-described pearl cultivation method of the present invention, the shellfish subjected to the nucleating operation immediately after the nucleating operation are rich in plankton in a high-purity clean seawater tank from which fine impurities have been removed. It is aquacultured for a required period of time after being fed, and is not affected by harmful minute impurities existing in natural seawater, and is protected and aquacultured with sufficient nutrition.
Therefore, the protected and cultivated nucleated shellfish can heal the incision caused by the nucleation sufficiently, and recover the physical strength that has declined due to the nucleation, secrete pearls into the nucleus of the body and form good pearls. It will be in a state of having constitutional strength. Then, when it is returned to the natural sea with its physical strength, it is possible to form a good quality pearl excellent in luster based on the physical strength.

Furthermore, in the embodiment of the present invention using a frozen liquid of plankton growth liquid, when the frozen liquid is administered as it is, the frozen liquid is frozen in a seawater tank at a water temperature of 15 ° C to 20 ° C containing a core shell. The liquid is gradually thawed, and the shellfish become edible one by one, so the aquaculture property of the shellfish becomes even better. And, the frozen liquid of the plankton growth liquid is
Since plankton will not die even if it is transported in the frozen state, it will be transported to areas / regions other than pearl farms along with the shellfish in a seawater bag, and cultured in a science classroom at a school or at home to cultivate pearls and survive. You can experience science education and pearl farming.

[0010]

EXAMPLES Examples will be described below by way of example. First, as a first embodiment of the present invention, natural seawater (seawater in Ago Bay, Shima-gun, Mie Prefecture) is pumped in and high-purity seawater obtained by removing miscellaneous bacteria and underwater contaminants of 1 micron or more by a filtration device is used. It is placed in a seawater tank (5m x 2.5m x 1.3m depth) to form a cultured seawater tank, and the high-purity seawater described above is continuously supplied to this cultured seawater tank to cause overflow or bottom drainage to replace water. In this state, fill the water and supply oxygen to the water.In this aquaculture seawater tank, put the skeleton containing the nucleolus that will be the core of the pearl into the aquaculture basket after the seeding work. In addition to the plankton multiplication facility, the plankton multiplication solution, which has grown to a high-concentration plankton number of 8 million per cc, was administered twice a day to 1,000 cc per 50 liters of seawater. Protection and aquaculture (Note that during the administration plankton growth liquid stops water changes).

Then, after 2 to 14 days, the healing state of the incision due to the nuclear insertion and the recovery of the physical strength due to the ankle are confirmed.
When it was recognized that the state of healing and recovery of physical strength had reached the basic constitution of pearl formation, the culture basket was returned to the natural sea and normal pearl culture was performed.

[0012] A conventional aquaculture method was carried out by comparing the conventional aquaculture method of aquaculture in the natural sea immediately after nucleation with the above-mentioned examples and the aquaculture method of the present invention which was protected and aquacultured as described above. Then the recovery rate of good quality pearls is about 6
While it was 0%, it was about 90% in the aquaculture method of the present invention.
The pearls have a good pearl luster, and high quality pearls can be cultivated with extremely high efficiency.

Next, as another embodiment of the present invention, the plankton growth liquid is frozen at about -10 ° C. and stored,
When the frozen plankton breeding solution was administered during the protective culture of the first example, the frozen plankton breeding solution was slowly thawed in seawater at 15 to 20 ° C., and became edible sequentially, so that the core was put into the nucleus. The edible condition of the shellfish food was stable, and a further favorable result was obtained from the above-mentioned example.

Further, as another embodiment of the present invention, the frozen plankton breeding solution is transported in a frozen state, and the nucleating shells are transported in a seawater bag, and the required concentration of salt water is stored in a small water tank equipped with a water purifier. Then, the nucleated oysters were added, and frozen plankton breeding liquid was administered to cultivate pearls. In this aquaculture example, although the luster is slightly inferior to the aquaculture pearls in natural seawater, pearls could be aquacultured in ordinary households and science classrooms. In this example, after culturing for a suitable number of days in a small water tank and observing, a part of the shellfish was returned to the natural sea of the production area and cultivated, and it was almost the same as that of the first example. A good quality pearl was formed.

[0015]

As described above, the method for culturing pearls of the present invention is capable of cultivating good-quality pearls with a particularly high efficiency as compared with the conventional culturing method, and at the same time, it is possible to place nuclei shells in regions / areas other than the pearl culture area. Since it can be transported and pearl culture can be carried out in the aquarium in the science classroom of the school or in the general household, it has the effects of improving the science education effect and viewing general pearl culture.

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[Procedure amendment]

[Submission date] March 22, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

[0003]

The above-mentioned conventional method for culturing pearls is such that a scalpel is inserted into a shell body to make an incision at the time of the core inserting work, and a core having a diameter of about 2 to 11 is inserted into the incised portion. Since it is artificially inserted, the shellfish that has undergone the nucleus insertion work has an incision and is in a state in which its physical strength has declined. Natural seawater with a water temperature of 15 ° C to 20 ° C that is returned in that state has many microscopic impurities (miscellaneous bacteria and microscopic foreign materials in the sea), and in recent years, the microscopic impurities increase due to seawater contamination, although they vary depending on the region. As a result, the scallops in the above-mentioned state are affected by such minute impurities, and a considerable number of incision wounds are insufficiently healed or their physical strength is delayed. Healing and recovery of physical strength of the skeleton skeleton has the drawback that pearl formation becomes poor.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

[0005]

[Means for Solving the Problems] The present invention for solving the above technical problems is described as follows. "A seawater tank containing high-purity seawater obtained by filtering natural seawater to remove minute impurities is provided with a nucleolus that becomes a core of a pearl. Immediately after the nucleus insertion work, the artificially inserted nucleating shells are placed, and the plankton growth solution in which the plankton is artificially propagated is placed in the seawater tank and protected and cultivated to heal the incision associated with the nucleation. And recovering physical strength, and then,
It is a method of culturing pearls, which is characterized by returning to the natural sea and culturing pearls. " Note that the above-mentioned minute impurities
Is a variety of bacteria, underwater contaminants, and other substances contained in natural seawater.
It is one that includes harmful plankton in bivalves.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction content]

[0010]

EXAMPLES Examples will be described below by way of example. First, as a first embodiment of the present invention, natural seawater (seawater in Ago Bay, Shima-gun, Mie Prefecture) is pumped in, and a filter device damages bacteria / water contaminants and bivalves of 1 micron or more.
High-purity seawater from which microscopic impurities such as plankton have been removed is put into a seawater tank (5 m × 2.5 m × 1.3 m depth) to form a cultured seawater tank. Is continuously supplied by overflowing or draining from the bottom to become a water exchange state to fill it, and oxygen supply to the water is made, and in this aquaculture seawater tank, a nucleating shell containing a nucleus forming a pearl nucleus is After the nucleation work, the plankton breeding solution, which was placed in a culture basket and hung in water, was grown in a separate plankton breeding facility to a highly concentrated plankton number of 8 million plankton per cc, and 1 2,000 cc was administered twice a day for protection and culture (the water exchange was stopped while the plankton growth solution was being administered).

Claims (3)

[Claims] 1. Immediately after the nucleating operation, a nucleating shell is artificially inserted into a seawater tank containing high-purity seawater obtained by filtering natural seawater to remove minute impurities With the addition of plankton artificially proliferated solution of plankton, put into the seawater tank for protective culture, to heal the incision and the physical strength of the incision due to the core insertion, and then return it to the natural sea. A method for culturing pearls, which comprises performing pearl culture. 2. The method for culturing pearls according to claim 1, wherein a frozen plankton breeding solution is used. 3. A purifier, which transports a plankton growth solution in which plankton is artificially propagated in a frozen state, and transports a shell containing artificially inserted nucleolus, which is a core of a pearl, in a seawater bag. A method for culturing pearls, comprising placing the core shells in an attached salt water tank, administering the plankton breeding solution, and culturing the pearls in the salt water tank in an area / region apart from the pearl culture area.