JPH0223825A - Culture of natural sweetfish - Google Patents
Culture of natural sweetfishInfo
- Publication number
- JPH0223825A JPH0223825A JP63172179A JP17217988A JPH0223825A JP H0223825 A JPH0223825 A JP H0223825A JP 63172179 A JP63172179 A JP 63172179A JP 17217988 A JP17217988 A JP 17217988A JP H0223825 A JPH0223825 A JP H0223825A
- Authority
- JP
- Japan
- Prior art keywords
- sweetfish
- water
- pond
- culture
- natural
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 241000861914 Plecoglossus altivelis Species 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000009360 aquaculture Methods 0.000 claims description 8
- 244000144974 aquaculture Species 0.000 claims description 8
- 239000000645 desinfectant Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000003673 groundwater Substances 0.000 claims description 3
- 239000002349 well water Substances 0.000 abstract description 8
- 235000020681 well water Nutrition 0.000 abstract description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 2
- 235000002639 sodium chloride Nutrition 0.000 abstract description 2
- 239000011780 sodium chloride Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 2
- 230000001954 sterilising effect Effects 0.000 abstract 2
- 238000004659 sterilization and disinfection Methods 0.000 abstract 2
- FDZZZRQASAIRJF-UHFFFAOYSA-M malachite green Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1C(C=1C=CC=CC=1)=C1C=CC(=[N+](C)C)C=C1 FDZZZRQASAIRJF-UHFFFAOYSA-M 0.000 abstract 1
- 229940107698 malachite green Drugs 0.000 abstract 1
- 241000251468 Actinopterygii Species 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 241000861915 Plecoglossus Species 0.000 description 3
- 241000442132 Lactarius lactarius Species 0.000 description 1
- 240000008415 Lactuca sativa Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229910000177 malayaite Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 235000012045 salad Nutrition 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は鮎の養殖方法に関するもので、特に天然鮎に近
似の外観を有する鮎を養殖により大量生産する方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for cultivating sweetfish, and more particularly to a method for mass-producing sweetfish having an appearance similar to natural sweetfish by culturing.
従来技術
鮎は日本人に喜ばれる清流点としてその需要が太き（、
最近は養殖による大量生産も各地で行なわれてはいるが
、天然鮎と同一の外観を有する養殖鮎は河川の清流水を
利用する方法しかなく、このため生産地域が制限される
結果、大部分の養殖鮎は一般に天然鮎と比較して著しく
肥満体となったものが多く、食味、外観共に著しく劣り
、特にその外観のために市場価値の急激な低下を招いて
いることは周知の通りである。Conventional technology Ayu is in great demand as a clear water source that is enjoyed by Japanese people.
Recently, mass production by aquaculture has been carried out in various places, but the only way to produce farmed sweetfish, which has the same appearance as wild sweetfish, is to use clear river water, and as a result, production areas are restricted, and most of the It is well known that farmed sweetfish are generally significantly obese compared to wild sweetfish, and are significantly inferior in taste and appearance.In particular, it is well known that this appearance has caused a rapid decline in market value. be.
発明が解決しようとする問題点
従って本発明の目的は天然鮎と同一の外観を有する養殖
鮎を清流河川水を利用することなく井戸水だけでも大量
生産し得るような一新規の天然鮎の養殖方法を提供する
ことである。Problems to be Solved by the Invention Therefore, the object of the present invention is to provide a novel method for cultivating wild sweetfish, which allows mass production of cultured sweetfish having the same appearance as wild sweetfish using only well water without using clear river water. The goal is to provide the following.
問題点を解決す・るための手段
本発明者は研究の結果、予め充分に消毒された養殖池内
に井戸水を導入して水流を形成させてから、空気混入を
行なうと共に稚魚に消毒液含有餌を給餌することによっ
て鮎の罹病率が著しく低下し、天然鮎と殆ど同一の外観
を有する養殖鮎を養殖池内で大量生産することができる
ことを知見した。すなわち、本発明は予め消毒された養
殖池内に地下水を導入して水流を形成させ、これに空気
を混入させると共に消毒液含有餌を給餌することを特徴
とする天然鮎の養殖方法に関するものであって、本発明
において養殖池を消毒すると共に消毒液含有餌を稚魚に
給餌する理由はそれによって鮎の体内、体外共に消毒し
稚魚の罹病率を低下させるためであり、また地下水（井
戸水）を利用する理由は河川の清流水の必要をな（し、
何処ででも任意の場所で鮎の養殖ができるようにすると
共に、井戸水等地下水の温度を利用して養殖池内の水温
を調節するためのものである。養殖池の水温調節は鮎の
成長と共に変化させる必要があり、井戸水混入量を調節
することによって行なわれるが、最高でも２２ｒ止まり
である。また水の流速と酸素供給量は常法に従って調整
する必要があるが要は天然の清流の中で鮎が生活すると
同じような環境条件を与えるためである。また消毒液含
有餌の給餌は鮎の出荷される時点より一週間程度以前に
止めることが必要である。餌は一例をあげると、白身の
魚に澱粉と小麦粉を混合して１６０Ｃに加熱したものを
乾燥、粉砕して０．１■及び０．５ ｗｍ程度とし、鮎
が稚魚の時期には０、１ ｍのものを、その後は０．５
ｍのものを給餌する。また稚魚の餌は一般に蛋白質含
有量を４５％程度のものとし、それ以後の成長魚では３
０％程度に落とすことにより天然魚としての外観を維持
させることができる。消毒液含有餌の消毒液としては例
えば・卆うザン（田辺製薬）５〜１０重量％をサラダ油
と混合して吹付け、池の消毒には食塩やマラヤイトグリ
ーン等が便利に使用され得る。Means for Solving the Problems As a result of research, the inventor of the present invention introduced well water into an aquaculture pond that had been sufficiently disinfected in advance to form a water flow, mixed in air, and fed the fry with disinfectant-containing food. It was discovered that by feeding sweetfish, the morbidity rate of sweetfish was significantly reduced, and it was possible to mass-produce cultured sweetfish with almost the same appearance as wild sweetfish in aquaculture ponds. That is, the present invention relates to a method for cultivating wild sweetfish, which is characterized by introducing groundwater into a pre-disinfected aquaculture pond to form a water flow, mixing air into the water flow, and feeding feed containing a disinfectant. Therefore, in the present invention, the reason why the aquaculture pond is disinfected and feed containing a disinfectant is fed to the young fish is to disinfect both the internal and external bodies of the sweetfish and reduce the morbidity rate of the young fish, and also to use underground water (well water). The reason for this is the need for clear water from rivers.
This system allows sweetfish to be farmed anywhere and at the same time adjusts the water temperature in the aquaculture pond by using the temperature of underground water such as well water. The water temperature in the aquaculture pond needs to change as the sweetfish grow, and this is done by adjusting the amount of well water mixed in, but the maximum temperature is 22r. Also, the flow rate of water and the amount of oxygen supplied need to be adjusted according to conventional methods, but the point is to provide the same environmental conditions as ayu living in a natural clear stream. Furthermore, it is necessary to stop feeding the bait containing disinfectant about one week before the sweetfish are shipped. For example, the bait is white fish mixed with starch and flour, heated to 160C, dried and crushed to about 0.1cm and 0.5wm, and when the sweetfish are young, 0. 1 m, then 0.5
Feed m. In addition, feed for young fish generally has a protein content of about 45%, and for later adult fish, the protein content should be around 3%.
By lowering the content to around 0%, the appearance of natural fish can be maintained. As a disinfectant for bait containing a disinfectant, for example, 5 to 10% by weight of Bozan (Tanabe Pharmaceutical) mixed with salad oil can be sprayed, and for disinfecting the pond, common salt, malayaite green, etc. can be conveniently used.
発明の効果
従って本発明の方法によれば、主として井戸水が使用さ
れることにより、河川水を使用する必要がなくなったた
めに、これまで河川水の清流を利用できなかった地域で
も地下水による天然鮎の大量生産が可能となったもので
ある。Effects of the Invention Therefore, according to the method of the present invention, since well water is mainly used, there is no need to use river water, so even in areas where clear river water could not be used until now, it is possible to grow natural ayu using groundwater. This made mass production possible.
Claims (1)
させ、これに空気を混入し、消毒液含有餌を給餌するこ
とを特徴とする天然鮎の養殖方法。A method for cultivating natural sweetfish, which is characterized by introducing groundwater into an aquaculture pond that has been disinfected in advance, forming a water flow, mixing air into this, and feeding feed containing a disinfectant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63172179A JPH0223825A (en) | 1988-07-11 | 1988-07-11 | Culture of natural sweetfish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63172179A JPH0223825A (en) | 1988-07-11 | 1988-07-11 | Culture of natural sweetfish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0223825A true JPH0223825A (en) | 1990-01-26 |
Family
ID=15937042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63172179A Pending JPH0223825A (en) | 1988-07-11 | 1988-07-11 | Culture of natural sweetfish |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0223825A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111657193A (en) * | 2020-07-06 | 2020-09-15 | 宽甸乾洲渔业有限公司 | Fresh water domestication method and domestication bait for sweet fishes |
-
1988
- 1988-07-11 JP JP63172179A patent/JPH0223825A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111657193A (en) * | 2020-07-06 | 2020-09-15 | 宽甸乾洲渔业有限公司 | Fresh water domestication method and domestication bait for sweet fishes |
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