JPH0622411B2 - Sea urchin artificial mating method - Google Patents
Sea urchin artificial mating methodInfo
- Publication number
- JPH0622411B2 JPH0622411B2 JP63254400A JP25440088A JPH0622411B2 JP H0622411 B2 JPH0622411 B2 JP H0622411B2 JP 63254400 A JP63254400 A JP 63254400A JP 25440088 A JP25440088 A JP 25440088A JP H0622411 B2 JPH0622411 B2 JP H0622411B2
- Authority
- JP
- Japan
- Prior art keywords
- sea urchin
- sea
- electric field
- electrodes
- spawning
- 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.)
- Expired - Lifetime
Links
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
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ウニの放精，放卵を人為的に促進して交配を
行うウニの人工交配方法に関する。TECHNICAL FIELD The present invention relates to an artificial mating method for sea urchins, which artificially promotes sperm and spawning of sea urchins for mating.
一般に、バフンウニの人工交配を行う場合、人為的にウ
ニの放精，放卵を行わせる必要があり、従来第５図に示
すような方法が採られている。In general, when artificially mating Bahun sea urchins, it is necessary to artificially spawn and spawn sea urchins, and the conventional method shown in FIG. 5 has been adopted.
即ち、ウニの生殖口は背面側の肛門周辺にあるため、肛
門と反対側の口の部分の殻を割つて開口(Ｓ)を形成し、
ビーカ(1)に装着された漏斗(2)に、肛門を下にしてウニ
を配設し、上向きの開口(Ｓ)に石けん水や希釈水酸化ナ
トリウム水溶液などの弱アルカリ性溶液を滴下し、ウニ
の生殖巣を刺激して放精，放卵を促している。That is, since the genital opening of the sea urchin is around the anus on the back side, the shell of the mouth part on the side opposite to the anus is split to form an opening (S),
In the funnel (2) attached to the beaker (1), the sea urchin is placed with the anus facing down, and a weak alkaline solution such as soapy water or diluted sodium hydroxide aqueous solution is dripped into the upward opening (S). It stimulates the gonads of the cat and stimulates ejaculation and spawning.
従来の技術で説明したものでは、ウニの口の部分に開口
(Ｓ)を形成する為に殻を割る作業が必要となり、しかも
この作業を慎重に行わなければならず、手間がかかり、
大量の交配を行う場合に長時間を要するという問題点が
ある。In the one described in the conventional technique, the sea urchin mouth has an opening.
Work to break the shell is required to form (S), and this work must be done carefully, which is troublesome and
There is a problem that it takes a long time to perform a large amount of mating.
そこで、本発明は前記の点に留意してなされ、大量のウ
ニの放精，放卵を促進し、大量のウニの交配を容易に行
えるようにすることを目的とする。Therefore, the present invention has been made with the above points in mind, and it is an object of the present invention to promote the ejaculation and spawning of a large amount of sea urchins and facilitate the mating of a large amount of sea urchins.
前記目的を達成するために、本発明では、水槽内に配設
された１対の電極に電圧を印加して前記両電極間に２〜
５V/cmの電界強度の電界を形成し、前記電界中にウニを
設けたことを特徴としている。In order to achieve the above-mentioned object, in the present invention, a voltage is applied to a pair of electrodes arranged in a water tank so that 2 to be applied between both electrodes.
It is characterized in that an electric field having an electric field strength of 5 V / cm is formed and sea urchin is provided in the electric field.
以上のように構成されているため、水槽内の２〜５V/cm
の電界強度の電界中にウニを配設することによつて、ウ
ニが電界による適度な電気刺激を受け、ウニの放精，放
卵が促進される。2-5V / cm in the water tank because it is configured as above
By disposing the sea urchin in the electric field having the electric field strength of 1, the sea urchin receives an appropriate electric stimulation by the electric field, and the ejaculation and spawning of the sea urchin are promoted.
このとき、水槽内の両電極間に大量のウニを配設して
も、これらのウニに対して同じように電気刺激が与えら
れるため、これらのウニの放精，放卵が同時に促進さ
れ、大量のウニの交配が容易に行える。At this time, even if a large amount of sea urchins are arranged between both electrodes in the water tank, the same electric stimulation is given to these sea urchins, so that the sperm and spawning of these sea urchins are simultaneously promoted, It is easy to cross a large amount of sea urchins.
実施例について第１図ないし第４図を参照して説明す
る。An embodiment will be described with reference to FIGS. 1 to 4.
人工交配装置の概略構成を示す第１図において、(3)は
水槽であり、一定流量の海水が注入され、水槽(3)の上
端から海水がオーバフローし、水槽(3)内に海水が満充
填されている。In Fig. 1 showing the schematic structure of the artificial mating device, (3) is a water tank, into which a constant flow of seawater is injected, and seawater overflows from the upper end of the water tank (3), so that the water tank (3) is filled with seawater. It is filled.
(4)は水槽(3)内の海水中に配設された１対の平板状電
極、(5)は両電極(4)に電圧を印加して両電極(4)間に電
界を形成する電源、(6)はバフンウニであり、両電極(4)
間の水槽(3)の底部に配設されている。(4) is a pair of flat plate electrodes arranged in seawater in the water tank (3), and (5) applies a voltage to both electrodes (4) to form an electric field between both electrodes (4). Power supply, (6) is a buffalo sea urchin, both electrodes (4)
It is arranged at the bottom of the water tank (3) in between.
ところで、このように両電極(4)間の電界中にウニ(6)を
配設すると、電界による電気刺激によつてウニ(6)が放
精，放卵するが、電界強度を最適値に調整しないと、ウ
ニ(6)が全く放精，放卵せず、或いはウニ(6)が死滅する
ことがあるため、ウニ(6)の放精，放卵を促進する電界
強度の最適値を実験的に求めた。By the way, if the sea urchin (6) is placed in the electric field between both electrodes (4) in this way, the sea urchin (6) will ejaculate and spawn by electrical stimulation by the electric field. If not adjusted, the sea urchin (6) may not sperm or spawn at all, or the sea urchin (6) may die, so the optimum value of the electric field strength that promotes sperm and spawning of the sea urchin (6) should be set. It was determined experimentally.
いま、第１図に示す構成において、両電極(4)の間隔を1
8cmとし、電源(5)の印加電圧を変化させたときの電圧と
ウニ(6)の反応との関係は第２図に示すようになり、印
加電圧が１０V以下ではウニ(6)の反応は全くなく、10〜
40Ｖではウニ(6)は管足を引込めて動かし、ほぼ36Ｖを
こえると、管足を引込めて動きを停止すると共に、放
精，放卵し、90Ｖ以上になるとウニ(6)は死滅した。Now, in the configuration shown in FIG. 1, set the interval between both electrodes (4) to 1
The relationship between the voltage and the reaction of the sea urchin (6) when the applied voltage of the power supply (5) is changed to 8 cm is as shown in Fig. 2. When the applied voltage is 10 V or less, the reaction of the sea urchin (6) Not at all, 10 ~
At 40V, sea urchins (6) move by retracting the tube legs, and when it exceeds approximately 36V, the tube legs retract and stop moving, and sperm and spawn. At 90V or higher, sea urchins (6) die. did.
従つて、電極間隔が１８cmのときに、印加電圧36〜90Ｖ
がウニ(6)の放精，放卵を促進する条件となり、この条
件を電界強度で表わすと２〜５V/cmとなり、２〜５V/cm
のときにウニ(6)の放精，放卵を効果的に促進すること
ができる。Therefore, when the electrode interval is 18 cm, the applied voltage is 36 to 90 V
Is a condition that promotes sperm and ovulation of sea urchin (6). When expressed in terms of electric field strength, this condition is 2-5V / cm, 2-5V / cm
At this time, it is possible to effectively promote the sperm and spawning of sea urchin (6).
また、異なる電極間隔に対しても、前記と同様に印加電
圧を変化させてウニ(6)が放精，放卵するときの印加電
圧条件を求めたところ、電極間隔が20cmの場合には、第
３図中のハツチングに示すように、印加電圧が40〜100
Ｖのときにウニ(6)の放精，放卵が促進され、この印加
電圧の条件を電界強度で表わすと、２〜５V/cmとなり、
さらに電極間隔が30cmの場合には第４図中のハツチング
に示すように、印加電圧が60〜150Ｖのときにウニ(6)の
放精，放卵が促進され、この印加電圧の条件を電界強度
で表わすと、やはり２〜５V/cmとなる。Also, for different electrode intervals, the applied voltage was changed in the same manner as above to determine the applied voltage conditions when the sea urchin (6) sperm and ovulate, and when the electrode interval was 20 cm, As shown by the hatching in Fig. 3, the applied voltage is 40-100
At V, the ejaculation and spawning of sea urchin (6) is promoted, and the condition of the applied voltage is 2 to 5 V / cm when expressed by the electric field strength.
Further, when the electrode interval is 30 cm, as shown by the hatching in Fig. 4, when the applied voltage is 60 to 150 V, the ejaculation and spawning of the sea urchin (6) are promoted. When expressed in terms of strength, it is still 2-5 V / cm.
従つて、水槽(3)内の両電極(4)間に大量のウニ(6)を配
設しても、これらのウニ(6)に対して、２〜５V/cmの電
界強度の電界による電気刺激をほぼ一様に与えることが
できるため、各ウニ(6)の放精，放卵を同時に促進する
ことができ、従来のようなウニの殻を割る作業が不要と
なり、大量のウニ(6)の交配を容易に行うことができ
る。Therefore, even if a large amount of sea urchins (6) are arranged between both electrodes (4) in the water tank (3), an electric field with an electric field strength of 2 to 5 V / cm is applied to these sea urchins (6). Since the electrical stimulation can be applied almost uniformly, it is possible to accelerate the sperm and spawning of each sea urchin (6) at the same time. The mating of 6) can be easily performed.
本発明は、以上説明したように構成されているので、以
下に記載する効果を奏する。Since the present invention is configured as described above, it has the effects described below.
水槽内において、大量のウニに対して，２〜５V/cmの電
界強度の電界による電気刺激をほぼ一様に与えることが
できるため、これらのウニを死滅させることもなく、各
ウニの放精，放卵を同時に促進することが可能となり、
従来のようなウニの殻を割る作業が不要となり、大量の
ウニの交配を容易に行うことができる。In the aquarium, a large amount of sea urchins can be electrically stimulated almost uniformly by an electric field with an electric field strength of 2 to 5 V / cm. ， It becomes possible to promote spawning at the same time,
Eliminating the work of breaking sea urchin shells that is required in the past makes it possible to easily cross a large amount of sea urchins.
第１図ないし第４図は本発明のウニの人工交配方法の１
実施例を示し、第１図は人工交配装置の分離斜視図、第
２図は印加電圧とウニの反応との関係を示す図、第３図
及び第４図は動作説明図であり、それぞれ異なる電極間
隔における印加電圧と電界強度との関係図、第５図は従
来例の斜視図である。 (3)……水槽、(4)……電極、(6)……バフンウニ。1 to 4 show a method 1 for artificially mating sea urchin of the present invention.
Fig. 1 shows an embodiment, Fig. 1 is an isolated perspective view of an artificial mating device, Fig. 2 is a diagram showing the relationship between the applied voltage and the reaction of sea urchin, and Figs. 3 and 4 are operation explanatory diagrams, which are different from each other. FIG. 5 is a diagram showing the relationship between the applied voltage and the electric field strength in the electrode interval, and FIG. 5 is a perspective view of a conventional example. (3) …… Aquarium, (4) …… Electrode, (6) …… Bafununi.
Claims (1)
加して前記両電極間に２〜５Ｖ／cmの電界強度の電界を
形成し、前記電界中にウニを設けたことを特徴とするウ
ニの人工交配方法。1. A voltage is applied to a pair of electrodes arranged in a water tank to form an electric field having an electric field strength of 2 to 5 V / cm between the electrodes, and a sea urchin is provided in the electric field. A method for artificially mating sea urchins characterized by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63254400A JPH0622411B2 (en) | 1988-10-07 | 1988-10-07 | Sea urchin artificial mating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63254400A JPH0622411B2 (en) | 1988-10-07 | 1988-10-07 | Sea urchin artificial mating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02100624A JPH02100624A (en) | 1990-04-12 |
| JPH0622411B2 true JPH0622411B2 (en) | 1994-03-30 |
Family
ID=17264452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63254400A Expired - Lifetime JPH0622411B2 (en) | 1988-10-07 | 1988-10-07 | Sea urchin artificial mating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0622411B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101720695A (en) * | 2009-12-14 | 2010-06-09 | 大连水产学院 | Method and isolated plant for hatching abalone fertilized ova by electric field excitation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596471B2 (en) * | 1976-08-06 | 1984-02-10 | ミシユラン・エ・コンパニ−（コンパニ−・ゼネラ−ル・デ・ゼタブリスマン・ミシユラン） | Electrochemical power generation method and power generation device |
| JPS60217833A (en) * | 1984-04-14 | 1985-10-31 | 浜口計器工業株式会社 | Egg discharge method of shellfishes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596471U (en) * | 1982-07-06 | 1984-01-17 | 西山 利明 | Fish and shellfish aquaculture spawning promotion device |
-
1988
- 1988-10-07 JP JP63254400A patent/JPH0622411B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS596471B2 (en) * | 1976-08-06 | 1984-02-10 | ミシユラン・エ・コンパニ−（コンパニ−・ゼネラ−ル・デ・ゼタブリスマン・ミシユラン） | Electrochemical power generation method and power generation device |
| JPS60217833A (en) * | 1984-04-14 | 1985-10-31 | 浜口計器工業株式会社 | Egg discharge method of shellfishes |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02100624A (en) | 1990-04-12 |
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