JPH0833441A - Method for improving hatching rate of fertilized egg of fishes and shellfishes - Google Patents
Method for improving hatching rate of fertilized egg of fishes and shellfishesInfo
- Publication number
- JPH0833441A JPH0833441A JP6192806A JP19280694A JPH0833441A JP H0833441 A JPH0833441 A JP H0833441A JP 6192806 A JP6192806 A JP 6192806A JP 19280694 A JP19280694 A JP 19280694A JP H0833441 A JPH0833441 A JP H0833441A
- Authority
- JP
- Japan
- Prior art keywords
- shellfishes
- fishes
- fertilized eggs
- hypochlorous acid
- seawater
- 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
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000012447 hatching Effects 0.000 title claims abstract description 16
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 10
- 235000015170 shellfish Nutrition 0.000 title claims abstract description 8
- 235000013601 eggs Nutrition 0.000 claims abstract description 36
- 239000013535 sea water Substances 0.000 claims abstract description 24
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 244000052769 pathogen Species 0.000 claims abstract description 7
- 235000014102 seafood Nutrition 0.000 claims description 17
- 150000003839 salts Chemical class 0.000 claims description 5
- 230000004720 fertilization Effects 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 10
- 239000000460 chlorine Substances 0.000 abstract description 10
- 229910052801 chlorine Inorganic materials 0.000 abstract description 10
- 238000007598 dipping method Methods 0.000 abstract 1
- 238000005868 electrolysis reaction Methods 0.000 description 6
- 230000001954 sterilising effect Effects 0.000 description 6
- 238000009360 aquaculture Methods 0.000 description 4
- 244000144974 aquaculture Species 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 208000035473 Communicable disease Diseases 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 241000123826 Lutjanus campechanus Species 0.000 description 1
- 241001282110 Pagrus major Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003911 water pollution Methods 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
【０００１】[0001]
【産業上の利用分野】この発明は、魚介類の養殖におい
て、魚介類受精卵の孵化率を向上させる方法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for improving the hatching rate of fertilized eggs of seafood in the culture of seafood.
【０００２】[0002]
【従来の技術】一般に、魚介類の受精卵を採取し、これ
を孵化し、孵化した稚魚を成長させる養殖方法は広く行
なわれている。しかし、近年、水域の汚染が激しくなる
とともに水域から採取した水にはウイルス、細菌、原生
動物など病原生物が含まれるようになり、この水域から
採取した水を使用して魚介類を養殖すると魚介類に上記
病原生物による感染症が発生し、死亡することがあっ
た。2. Description of the Related Art In general, a method of aquaculture in which fertilized eggs of seafood are collected, hatched, and the hatched fry are grown is widely used. However, in recent years, water pollution has become more severe, and the water collected from the water now contains pathogenic organisms such as viruses, bacteria, and protozoa. Infectious diseases caused by the above-mentioned pathogenic organisms have occurred in some species, resulting in death.
【０００３】そのため、従来から養殖用水槽で使用する
水に薬剤を投与したり、塩素剤を投与したりして養殖用
水槽の水を殺菌したり、または紫外線を照射して水を殺
菌することにより魚介類の感染症を予防または治療して
いた。養殖用水槽の水の殺菌方法の内でも薬剤投与によ
る殺菌方法は薬剤が高価であるためにコストがかかりす
ぎ、また紫外線による殺菌方法は十分な殺菌効果が得ら
れない。そのためコストが低くかつ優れた殺菌効果のあ
る塩素剤（例えば、液体塩素、サラシ粉、次亜塩素酸カ
ルシウムなど）を投与する殺菌方法が広く行なわれてい
る。Therefore, it is necessary to sterilize the water in the aquaculture aquarium by administering a chemical or chlorine agent to the water used in the aquaculture aquarium, or to sterilize the water by irradiating ultraviolet rays. Was used to prevent or treat seafood infectious diseases. Among the methods for sterilizing water in the aquarium for aquaculture, the sterilization method by administering the drug is too expensive because the drug is expensive, and the sterilization method by ultraviolet rays cannot obtain a sufficient sterilizing effect. Therefore, a sterilization method in which a chlorine agent having a low cost and an excellent bactericidal effect (for example, liquid chlorine, powdered coconut powder, calcium hypochlorite, etc.) is administered is widely used.
【０００４】[0004]
【発明が解決しようとする課題】しかし、該塩素剤投与
による殺菌方法は大きくなった稚魚や成魚等の飼育時に
おける感染対策には有効であるが、魚介類の受精卵が病
原生物に感染することに対する対策としては適当ではな
く、その理由として従来の稚魚または成魚の感染予防に
使用する塩素剤を含んだ水に魚介類受精卵を浸漬する
と、受精卵に悪影響を及ぼし、受精卵の孵化率で低下
し、したがって漁獲量が減少するという結果をもたらし
ていた。However, although the sterilization method by the administration of the chlorine agent is effective as a countermeasure against infection during the breeding of grown-up fry and adult fish, fertilized eggs of seafood infect pathogenic organisms. If the fertilized eggs of seafood are immersed in water containing a chlorine agent used to prevent infection of conventional fry or adult fish, the fertilized eggs will be adversely affected and the hatching rate of the fertilized eggs will not be appropriate. , Resulting in a decrease in catch.
【０００５】[0005]
【課題を解決するための手段】そこで、本発明者等は、
かかる従来の課題を解決すべく研究を行った結果、
（１） 塩水または海水を電気分解すると、塩水または
海水中に次亜塩素酸が生成し、この電気分解により生成
した次亜塩素酸を含む水に魚介類の受精卵を浸漬する
と、受精卵に悪影響を与えることなく受精卵に付着した
病原生物を死滅させることができる、（２） 上記次亜
塩素酸の含有量は塩水または海水に通電する電気量を制
御することにより適量を精度よく調整することができ
る、などの知見を得たのである。Therefore, the present inventors have
As a result of research to solve such conventional problems,
(1) When salt water or seawater is electrolyzed, hypochlorous acid is generated in salt water or seawater, and when fertilized eggs of seafood are immersed in water containing hypochlorous acid generated by this electrolysis, fertilized eggs are formed. It is possible to kill the pathogenic organisms attached to the fertilized egg without adversely affecting it. (2) The content of the above hypochlorous acid can be adjusted accurately by controlling the amount of electricity applied to salt water or seawater. It was possible to obtain such knowledge.
【０００６】この発明は、かかる知見に基づいてなされ
たものであって、塩水または海水を電気分解して次亜塩
素酸を含有する水を作成し、この次亜塩素酸を含有する
水に魚介類受精卵を浸漬し、該受精卵に付着した病原生
物を死滅させる魚介類受精卵の孵化方法に特徴を有する
ものである。The present invention has been made on the basis of the above findings, in which salt water or seawater is electrolyzed to prepare water containing hypochlorous acid, and the water containing hypochlorous acid is added to the seafood. It is characterized by a method for hatching a fertilized fish and shellfish egg by immersing the fertilized egg in the fertilized egg and killing the pathogenic organism attached to the fertilized egg.
【０００７】この発明の魚介類の養殖における魚介類受
精卵の孵化率向上方法を実施するための装置を図面によ
り説明する。An apparatus for carrying out the method for improving the hatching rate of fertilized eggs of seafood in the culture of seafood according to the present invention will be described with reference to the drawings.
【０００８】図１は、この発明の魚介類受精卵の孵化率
向上方法を実施するための装置の概略図である。図１に
おいて、１は受精卵の収容槽、２は受精卵の収容槽１に
次亜塩素酸を供給するための電解槽、３は電解槽の電源
装置、４は塩素計、５はポンプ、６，６' は海である。FIG. 1 is a schematic view of an apparatus for carrying out the method for improving the hatching rate of fertilized eggs of seafood according to the present invention. In FIG. 1, 1 is a fertilized egg storage tank, 2 is an electrolysis tank for supplying hypochlorous acid to the fertilized egg storage tank 1, 3 is an electrolytic cell power supply device, 4 is a chlorine meter, 5 is a pump, 6,6 'is the sea.
【０００９】ポンプ５で汲み上げた海水を電解槽２で電
気分解し、微量の次亜塩素酸を生成させ含有した海水を
収容槽１に供給し、収容槽１に電気分解された海水が貯
った時点で受精卵を収容槽１に収容する。収容槽１には
塩素計４が設置してあり、供給された海水中の次亜塩素
酸濃度を検出する。この塩素計４は電源装置３に接続さ
れており、電源装置３は電解槽２に接続されていて、塩
素計４により検出された電気分解海水中の次亜塩素酸濃
度に応じて電源装置３から供給される出力電流を制御す
ることができるようになっている。したがって、海水の
次亜塩素酸濃度が所定の濃度になるように電源装置３か
ら供給される電流値をセットすることができるようにな
っている。The electrolyzed seawater pumped by the pump 5 is electrolyzed in the electrolyzer 2 to generate a small amount of hypochlorous acid, and the contained seawater is supplied to the storage tank 1. The electrolyzed seawater is stored in the storage tank 1. At that time, the fertilized egg is stored in the storage tank 1. A chlorine meter 4 is installed in the storage tank 1 and detects the concentration of hypochlorous acid in the supplied seawater. The chlorine meter 4 is connected to the power supply device 3, which is connected to the electrolysis tank 2, and the power supply device 3 according to the concentration of hypochlorous acid in the electrolyzed seawater detected by the chlorine meter 4. It is possible to control the output current supplied from the. Therefore, the current value supplied from the power supply device 3 can be set so that the hypochlorous acid concentration of seawater becomes a predetermined concentration.
【００１０】[0010]
【実施例】受精後２０時間経過した真鯛の神経胚期の受
精卵を無作為に５０粒づつ取り出し、これら真鯛の受精
卵を、海水を電気分解して得られた表１に示される濃度
の次亜塩素酸を含む海水の入った収容槽に表１に示され
る時間浸漬し、ついでこれを海水温度が２０℃に保持さ
れた恒温槽に移し、孵化した稚魚を計数した。本試験を
２回繰り返し、その結果を表１に示した。[Examples] Fifty fertilized eggs of the red sea bream at the embryonic stage 20 hours after fertilization were randomly taken out, and the fertilized eggs of the red snapper were electrolyzed from seawater to obtain the concentrations shown in Table 1. It was dipped in a storage tank containing seawater containing hypochlorous acid for the time shown in Table 1, and then transferred to a constant temperature tank in which the seawater temperature was kept at 20 ° C., and the number of hatched fry was counted. This test was repeated twice, and the results are shown in Table 1.
【００１１】[0011]
【表１】 [Table 1]
【００１２】表１に示される結果から、実施例１〜１５
および実施例１７〜１９の電気分解による次亜塩素酸を
含有した海水で受精卵を浸漬処理すると孵化率がいずれ
も８０％以上となるに対し、浸漬処理しない従来例では
孵化率が８０％未満であるところから、この発明の方法
によると魚介類の受精卵の孵化率が向上することがわか
る。From the results shown in Table 1, Examples 1 to 15
When the fertilized eggs are soaked in seawater containing hypochlorous acid by electrolysis of Examples 17 to 19 and the hatching rate is 80% or more, the hatching rate is less than 80% in the conventional example which is not soaked. From the above, it is understood that the hatching rate of fertilized eggs of seafood is improved by the method of the present invention.
【００１３】しかし、比較例１６および２０に見られる
ように、次亜塩素酸を１．０ppm および２．０ppm 含有
した海水中に２４時間浸漬すると孵化率が低下するとこ
ろから次亜塩素酸を０．５ppm を越え２ppm 以下含有す
る海水を用いると浸漬処理の時間的制限を受け、この時
の浸漬処理時間は１時間以内が好ましいことがわかる。However, as seen in Comparative Examples 16 and 20, hypochlorite was reduced to 0 because the hatching rate was lowered when it was immersed in seawater containing 1.0 ppm and 2.0 ppm of hypochlorous acid for 24 hours. It is understood that the use of seawater containing more than 0.5 ppm and 2 ppm or less limits the time of the immersion treatment, and the immersion treatment time at this time is preferably within 1 hour.
【００１４】しかし、次亜塩素酸を０．０５〜０．５pp
m の範囲内で含有する電気分解海水に受精卵を浸漬する
と浸漬時間の制限を受けずに浸漬処理を行うことができ
るので、正確な浸漬時間調整を行なう必要がなく、受精
卵孵化率向上の作業がやりやすくなるので一層好ましい
こともわかる。However, hypochlorous acid is added in an amount of 0.05 to 0.5 pp.
When fertilized eggs are immersed in electrolyzed seawater contained within the range of m, the immersion process can be performed without being limited by the immersion time. It can be seen that it is more preferable because the work becomes easier.
【００１５】[0015]
【発明の効果】この発明によると、次亜塩素酸を含有し
た海水を電気分解により得ることができるから、次亜塩
素酸の含有量を通電する電流量により精度よく調整する
ことができ、受精卵の孵化率を向上させて養殖魚介類の
漁獲量をふやすことができるという優れた効果を奏する
ものである。According to the present invention, since seawater containing hypochlorous acid can be obtained by electrolysis, the content of hypochlorous acid can be accurately adjusted by the amount of current to be passed. It has an excellent effect that the hatching rate of eggs can be improved and the catch of cultured seafood can be increased.
【図１】この発明の魚介類受精卵の孵化率向上方法で使
用する装置の概略図である。FIG. 1 is a schematic view of an apparatus used in the method for improving the hatching rate of fertilized seafood eggs of the present invention.
１ 受精卵の収容槽 ２ 電解槽 ３ 電源装置 ４ 塩素計 ５ ポンプ ６ 海水 ６' 海水 1 Fertilized egg storage tank 2 Electrolysis tank 3 Power supply device 4 Chlorine meter 5 Pump 6 Seawater 6'Seawater
Claims (2)
を浸漬し、該魚介類受精卵に付着した病原生物を死滅さ
せることを特徴とする魚介類受精卵の孵化率向上方法。1. A method for improving the hatching rate of fertilized seafood eggs, which comprises immersing the fertilized seafood eggs in water containing hypochlorous acid to kill the pathogenic organisms attached to the fertilized seafood eggs.
たは海水を電気分解して得られた次亜塩素酸を含有する
水であることを特徴とする請求項１記載の魚介類受精卵
の孵化率向上方法。2. The fertilization of fish and shellfish according to claim 1, wherein the water containing hypochlorous acid is water containing hypochlorous acid obtained by electrolyzing salt water or seawater. How to improve egg hatchability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6192806A JPH0833441A (en) | 1994-07-25 | 1994-07-25 | Method for improving hatching rate of fertilized egg of fishes and shellfishes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6192806A JPH0833441A (en) | 1994-07-25 | 1994-07-25 | Method for improving hatching rate of fertilized egg of fishes and shellfishes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0833441A true JPH0833441A (en) | 1996-02-06 |
Family
ID=16297306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6192806A Pending JPH0833441A (en) | 1994-07-25 | 1994-07-25 | Method for improving hatching rate of fertilized egg of fishes and shellfishes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0833441A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004046204A1 (en) * | 2002-11-21 | 2004-06-03 | Stichting Dutch Polymer Institute | Process for the radical (co)polymerization of a compound comprising at least one non-aromatic c=c double bond |
| JP2005143329A (en) * | 2003-11-12 | 2005-06-09 | Japan Science & Technology Agency | Method for sterilizing animals and phytoplankton, and method for cultivating rotifer using the sterilization method |
| JP2007259808A (en) * | 2006-03-29 | 2007-10-11 | Japan Carlit Co Ltd:The | How to improve hatchability of fertilized eggs |
| KR102533565B1 (en) * | 2022-08-25 | 2023-05-17 | 대봉엘에프 영어조합법인 | Method of aquaculturing fish using eletrolytic mixed oxidant |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05236843A (en) * | 1992-02-27 | 1993-09-17 | Toyo Eremento Kogyo Kk | Method for treating fish egg |
| JPH06153744A (en) * | 1992-09-25 | 1994-06-03 | Riyouyou Sangyo Kk | Method for diminishing parasite of fishes and bacterium and removing living thing attached to crawl net |
-
1994
- 1994-07-25 JP JP6192806A patent/JPH0833441A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05236843A (en) * | 1992-02-27 | 1993-09-17 | Toyo Eremento Kogyo Kk | Method for treating fish egg |
| JPH06153744A (en) * | 1992-09-25 | 1994-06-03 | Riyouyou Sangyo Kk | Method for diminishing parasite of fishes and bacterium and removing living thing attached to crawl net |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004046204A1 (en) * | 2002-11-21 | 2004-06-03 | Stichting Dutch Polymer Institute | Process for the radical (co)polymerization of a compound comprising at least one non-aromatic c=c double bond |
| JP2005143329A (en) * | 2003-11-12 | 2005-06-09 | Japan Science & Technology Agency | Method for sterilizing animals and phytoplankton, and method for cultivating rotifer using the sterilization method |
| JP2007259808A (en) * | 2006-03-29 | 2007-10-11 | Japan Carlit Co Ltd:The | How to improve hatchability of fertilized eggs |
| KR102533565B1 (en) * | 2022-08-25 | 2023-05-17 | 대봉엘에프 영어조합법인 | Method of aquaculturing fish using eletrolytic mixed oxidant |
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