JPH06113752A - Copper solution for sterilizing culture fishes and as mineral for feed - Google Patents

Abstract

PURPOSE:To provide a copper solution useful for swellfish, flatfish, etc., not causing stress, having excellent safety, growth and yield free from mutual biting and toxicity by immersing copper in sea water, etc., and diluting the eluted solution into a proper concentration. CONSTITUTION:Copper such as 99.9% copper is immersed in sea water or a solution of sodium chloride, eluted and the eluted solution is diluted to a proper concentration to give the objective copper solution.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copper solution which is excellent in sterilization of farmed fish and has excellent performance as a mineral for feed and is highly safe.

[0002]

2. Description of the Related Art It is well known that, in the age of 200 nautical miles, the fishing industry has shifted from the fishing industry to the fishing industry to produce fisheries, and in particular, the aquaculture industry has become popular. However, as the production volume increased, the fishing ground environment deteriorated and various fish diseases began to occur. As a countermeasure against this, drugs such as antibiotics for marine use are administered, but as a result, antibacterial action occurs, so it is necessary to develop new drugs against it, and now we are in a state of fish disease and drug weasel. It's no exaggeration to say.

Recently, the cultivation of high-grade fish has become particularly popular, and the most prominent ones are flounder and puffer fish. However, these fishes are nervous and have weak skin, and parasites such as nematodes and gills easily parasitize, and drugs such as formalin are used to control them. There was a risk. Moreover, when these chemicals are used, the shock will be great and the fish will be exhausted, and the food will eat for 2.3 days, but it will become bad, especially in the summer when the water temperature rises. It is even more difficult in aquaculture of puffer fish, and the meshing due to stress occurs. When this begins, it will cause mouth rot and will be completely untouched, and most of it will die. It is also true that these things put pressure on the management of aquaculture fishers.

[0004]

However, the above-mentioned conventional measures against fish diseases and the disinfecting and sterilizing methods described above have a poor sustaining effect of the chemicals, are highly dangerous, and have a problem in their safety. There is still no known drug that suppresses the meshing of the blowfish.

[0005]

The above-mentioned problems of the prior art are solved, for example, by sterilizing cultured fish produced by the production method according to the present invention and using a copper solution as a mineral. The higher the purity of the copper ingot used for the sterilization of the cultured fish of the present invention and the copper solution as a mineral, the more preferable it is, and the copper content of more than 99% and 99.9% is particularly preferable. It is preferable that the copper ingot is fine in order to promote the dissolution. The method for sterilizing cultured fish of the present invention and the method for producing a copper solution as a feed mineral is as follows: seawater or sodium chloride solution is dipped and eluted to produce a copper solution, which is sterilized and used in any form as a feed mineral. be able to.

The greatest feature of the present invention is that a copper solution is produced using a seawater or sodium chloride solution. That is, by using seawater or sodium chloride solution, etc., its physical properties are nontoxic, bactericidal, and excellent in safety.
It is also an essential mineral for fish. As a solution replacing seawater or sodium chloride, acetic acid, citric acid, or other edible acid may be used.

[0007]

The copper solution produced by the production method according to the present invention is diluted to an appropriate concentration and the parasites such as larvae, gills and the like are immersed in the diluted copper solution to completely eliminate these parasites. Exhibits a bactericidal action to kill. In addition, when mixed and administered as a mineral to mixed feeds, the action of copper ions promotes digestion and absorption, and at the same time suppresses stress and cultivates healthy fishes that are difficult to attach to mudworms, gills and insects. You can

[0008]

Example A copper solution was produced by mixing 5% of copper powder in 10 liters of seawater and introducing the mixture into a mixer. This was diluted 1000 times to obtain a copper ion solution having a copper ion concentration of 500 PPM.
The obtained copper ion solution was put into an aquarium having a width of about 150 cm, a depth of about 100 cm, and a depth of about 70 cm, and 600 puffer fish to which parasites such as nematodes and gills were attached. It was discharged in two batches, and after about 10 minutes each, it was returned to the original net case. As a result of the inspection, all the parasites such as the nematode and the gills were dead.

As a comparative example, formalin solution was added to 500 PPM
It is diluted to 150 cm, width is about 100 cm, depth is about 100 cm, and depth is about 70 cm, and it is poured into a tank of 600 blowfish with parasites such as nematodes and gills. Was released in two batches, and after about 10 minutes each, it was returned to the original net cage. As a result of the inspection, the parasites such as the nematode and the gills were almost dead, but they were found to be weakened. The shock of disinfection and disinfection caused a bad thread on the bait, resulting in death.
The results are as shown in Table 1.

[0010]

[Table 1]

Copper powder 5% was mixed in 10 liters of sodium chloride 3% solution and charged into a mixer to produce a copper solution. From this, 50 cc was taken out and diluted 2000 times to obtain a copper ion solution having a concentration of 25 PPM. This was mixed in an ordinary compounded feed to produce moist pellets, which were then bred for 3 months after administration in mono-puffer fish of the present year. During that time, no meshing occurred due to the stress peculiar to the cultured puffer fish, and therefore, the occurrence of mouth rot caused by this did not occur, and the fish grew smoothly. As a comparative example, moist pellets of a normal mixed feed were administered to mono-fugu for the present year for 3 months after administration. The puffer fish bred only with the additive-free mixed feed started to bite due to stress and was considerably killed. The results are as shown in Table 2.

[0012]

[Table 2]

5% of copper powder was mixed in 10 liters of a 3% solution of sodium chloride and charged into a mixer to produce a copper solution.
Dilute this 1000 times to obtain a copper ion concentration of 500PPM
To obtain a copper ionic liquid. The obtained copper ion solution was poured into a monoloon aquaculture tank for the current year. After 10 minutes, water was poured into the water tank to restore the normal state. As a result of the inspection, all the parasites such as the nematodes and the gills were dead.

Although there was a considerable variation in size, no mortality was seen at this point. As a comparative example, the formalin solution was diluted to 500 PPM, and the diluted product was put into a flatfish cultivation water tank for the current year. After 10 minutes, water was poured into the water tank to restore the normal state. As a result of the test, most of the parasites such as the nematode and the gills were dead. In addition, since the size of the flounder is quite variable, the death caused by the disinfection, which seems to be a shock death, was observed. The results are shown in Table 3.

[0015]

[Table 3]

5% of copper powder was mixed in 10 liters of a 3% solution of sodium chloride, placed in a mixer and dissolved to prepare a copper solution. From this, 50 cc was taken out and diluted 2000 times to obtain a copper ion solution having a copper ion concentration of 25 PPM. This was mixed in an ordinary compounded feed to produce a moist pellet, which was then bred for 3 months after being administered to a Japanese flounder. As a comparative example, a normal mixed feed was processed into a moist pellet, and the same flatfish was bred for 3 months after administration. The results are as shown in Table 4.

[0017]

[Table 4]

[0018]

The copper solution produced by the production method according to the present invention is diluted to an appropriate concentration and used for sterilization of puffer fish, flounder, etc., as shown in Examples 1 and 3, for example.
The fish can be kept in a stable state without causing shock. There was no death during the experimental period. On the other hand, when the formalin solution or the like of Comparative Example was used for sterilization, the nerve condition became unstable and shock death and meshing due to stress occurred.

Next, the copper solution produced by the production method according to the present invention is diluted to an appropriate concentration, mixed with the compounded feed as shown in Examples 2 and 4, and administered to puffer fish, flounder, etc. The growth was excellent as well as the yield was improved without causing stress. In contrast, when only the additive-free compounded feed of the comparative example was administered, the puffer fish bite due to stress, mouth rot occurred, and adult death occurred. Various fish diseases occurred in the Japanese flounder. As a result, the yield was also poor and the average fish weight was considerably lower.

Claims (1)

[Claims] 1. A sterilizer and a feed, characterized in that copper is immersed in a sodium chloride solution or a sodium chloride solution, eluted, and the solution is diluted to an appropriate concentration to be used as a sterilizer for cultured fish and a mineral for a feed. Copper solution as a mineral for use