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Method for lightening stress response of juvenile plectorhinchus niger in manual operation

A technology of stress response and manual operation, which is applied in application, fish farming, climate change adaptation, etc. It can solve problems such as stabbing operators, surface injuries of fish, and physiological dysfunction of aquatic animals.

Inactive Publication Date: 2012-08-15
MARICULTURE INST OF SHANDONG PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this fish is lively by nature and is highly irritable when it encounters external stimuli; it struggles and jumps strongly after leaving the water, and there are sharp spines on the dorsal fin, anal fin, and gill cover, which are very easy to stab each other, and it is difficult for handling, individual marking, Manual operations such as immunization injections and physiological experiments have brought great difficulties
Most of the above operations are carried out directly. The stress response of the black perch not only makes various operations very inconvenient, but also causes surface injuries to the fish and induces diseases.
[0003] In addition, the stress response can inhibit the immune function of aquatic animals, and aquatic animals that are often in a state of stress have physiological dysfunction and are more susceptible to diseases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In August 2009, in the seed cultivation workshop of Yantai Baijia Aquatic Products Co., Ltd. located in Huangshanguan Town, Longkou City, Yantai, the water temperature was 22-23°C, salinity 29-30, pH 8.0-8.2, DO>6mg / L For seawater, a 20L plastic storage box is used as a container, and the volume of seawater is 10L, and a small amount of air is used. The juveniles of black rock perch have a total length of 55.2 mm ± 6 mm (average total weight 3.17 g) and are fasted for one day.

[0018] Use 2-phenoxyethanol produced by BASF Chemical Company in Germany, and calculate according to the concentration of 250 μL / L, then 2.5 mL of 2-phenoxyethanol should be added to 10 L of seawater.

[0019] Use a net to fish the juvenile black rock perch into the 2-phenoxyethanol seawater solution. Within 3 minutes, the juvenile fish lie on the bottom of the tank, and then perform operations such as growth measurement, immunization injection, individual labeling or experiments. Bass juvenile...

Embodiment 2

[0022] In September 2009, in the seedling cultivation workshop of Yantai Baijia Aquatic Products Co., Ltd. located in Huangshanguan Town, Longkou City, Yantai, seawater with a water temperature of 21°C, a salinity of 29-30, a pH of 8.0-8.2, and a DO>6mg / L was used , with a 200LPVC tank as a container, with a seawater volume of 100L, and a small amount of air. The juveniles of black rock perch have a total length of 99.0mm±7mm (average total weight 14.9g), and they are fasted for one day.

[0023] Using 2-phenoxyethanol produced by BASF Chemical Company in Germany, calculated according to the concentration of 350 μL / L, then 35 mL of 2-phenoxyethanol should be added to 100 L of seawater.

[0024] Use a net to fish the juvenile black perch into the seawater solution of 2-phenoxyethanol. Within 3 minutes, the juveniles lie on the bottom of the tank, and then they can perform operations such as growth measurement, immunization injection, individual labeling and experiments. The ju...

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PUM

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Abstract

The invention relates to a technology for lightening fish stress response, in particular to a method for lightening the stress response of juvenile plectorhinchus niger in manual operation. The method comprises the following steps of: firstly, stopping bait for the juvenile plectorhinchus niger for one day so as to empty foods in intestine and stomach of the fish body; secondly, calculating the required dosage of 2-phenoxyethanol according to the concentration of 250-350 microliter / L, dissolving the required dosage of 2-phenoxyethanol in a container filled with sea water, and stirring for evenly dissolving the 2-phenoxyethanol; thirdly, fishing the juvenile plectorhinchus niger into the sea water solution of the 2-phenoxyethanol for 3 minutes, wherein when the juvenile plectorhinchus niger lie down at the bottom of a water tank, all kinds of production and experiment operations can be carried out; and after finishing the operations, shifting the juvenile plectorhinchus niger into the common sea water. Remarkably, the invention is greatly convenient for manual operations, such as conveying transportation, individual marking, immunity injection, physiological experiment and the like, the juvenile plectorhinchus niger does not catches diseases, and the manual operation is fast and safe.

Description

technical field [0001] The invention relates to a technology for alleviating the stress response of fish, in particular to a method for alleviating the stress response in the manual operation of juvenile black perch. Background technique [0002] Black stone perch is an offshore reef-loving bottom fish, distributed in the western part of the North Pacific Ocean, and distributed in the Bohai Sea, the Yellow Sea and the East China Sea in my country, especially in the Yellow Sea and the Bohai Sea. The black rock perch is large in size, delicate in meat quality, high in taste, wide in seed sources, strong in disease resistance, low temperature resistant, and fast in growth. It is currently an important cage cultured fish species in the northern coast of my country. However, this fish is lively by nature and is highly irritable when it encounters external stimuli; it struggles and jumps strongly after leaving the water, and there are sharp spines on the dorsal fin, anal fin, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 官曙光关健刘洪军刘梦侠王其翔高翔
Owner MARICULTURE INST OF SHANDONG PROVINCE
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