Fish electronarcosis method

A technology of electric anesthesia and fish, which is applied in the field of anesthesia for live fish, can solve the problems of physiological index influence, inapplicability, and long time consumption, and achieve the effect of no aftereffect, fast anesthesia, and fast fish

Inactive Publication Date: 2007-11-21
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
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Problems solved by technology

Because drug anesthesia takes a long time, and the physiological indicators in the body of fish will also be affected after being anesthetized, such as cortisol, glucose, lactate and other concentrations will change. can interfere with normal food intake over time, resulting in long-term negative effects on growth and development
[0003] Although the electric shock fishing method used in fishing technology has anesthesia effect on fish, electric shock fishing does not take into account the long-term effect on fish anesthesia, so it cannot be applied in scientific research and production practice

Method used

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  • Fish electronarcosis method

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Embodiment Construction

[0008] The best way to implement the present invention is illustrated below in conjunction with the accompanying drawings:

[0009] The technical scheme of the present invention needs to be equipped with a water tank 1, can select the water tank of different specifications according to the size of anesthetized fish, as the tank is long at 30cm~300cm; The tank width is at 15cm~60cm; A piece of metal mesh electrode 2 is arranged at both ends of the water tank 1, the longitudinal distance of the metal mesh electrodes 2 at both ends can be adjusted by being slightly larger than the length of the fish body 4, and the metal mesh electrodes 2 at both ends are respectively connected to the DC power supply 3 with adjustable current and voltage. The positive and negative poles become the anesthesia tank for electric anesthesia of fish; keep a certain water depth in the anesthesia tank, put the anesthetized fish 4 into the anesthesia tank, adjust the longitudinal distance of the metal mes...

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Abstract

The present invention is electric live fish anesthetizing method and solves the technological problem of providing one kind of fast fish anesthetizing method with less side effect on fish. The technological scheme of the present invention includes providing one water trough, setting metal net electrodes connected separately to the positive and negative poles of an adjustable DC power source on two ends of the water trough, setting fish inside the electric anesthetizing trough, maintaining current of 0.4-0.5 A depending on the fish size and variety, and regulating voltage in 0-36 V to reach electric field strength of 0.4-0.5 V / cm so as to anesthetize fish in 10 sec. The present invention is suitable for scientific research and practical production.

Description

technical field [0001] The invention relates to a method for anesthetizing a living fish. Background technique [0002] In scientific research and production practice, in order to facilitate the operation of live fish and reduce the injury of the operated object, it is necessary to anesthetize the fish. For a long time, fish anesthesia technology has used MS-222, clove oil and other drugs to anesthetize, and the drugs affect the central and peripheral nerves of fish to achieve the effect of anesthesia. It takes a long time for drug anesthesia to achieve anesthesia effect, and it takes a long time for fish to recover after being anesthetized. Fish generally have to go through five reaction behavior stages to achieve complete anesthesia, that is, slight sedation stage, deep sedation stage, partial loss of balance stage, complete loss of balance stage, and loss of responsiveness stage. For example, it takes 4-7 minutes to anesthetize the sturgeon with 100mg / L MS-222, and it t...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 庄平章龙珍李长松张涛冯广朋黄晓荣赵峰
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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