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Secondary debonding method for acipenser dabryanus

A secondary debonding and Dabry's sturgeon technology, which is applied in the field of artificial breeding, can solve the problem of unsatisfactory primary debonding effect and achieve the effects of reducing the probability of block occurrence, stabilizing water flow and reducing artificial stimulation

Inactive Publication Date: 2014-11-19
FISHERIES INST SICHUAN ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a secondary debonding method for Dabry's sturgeon for the problem of unsatisfactory primary debonding effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A secondary debonding method for Dabry's sturgeon. After hatching the fertilized eggs of Dabry's sturgeon to the gap-like blastopore stage-wide neural plate stage, after hatching at 18°C ​​for 46 hours, the fertilized eggs are introduced into the container, and the mass Concentration of 8% talcum powder, gently stir with goose feathers in the same direction for 15 minutes, after cleaning, put it into the sturgeon incubator to continue hatching.

Embodiment 2

[0015] A secondary debonding method of Dabry's sturgeon. After the fertilized eggs of Dabry's sturgeon are hatched to the gap-like blastopore stage-wide neural plate stage, they are incubated at 18°C ​​for 50 hours, then the fertilized eggs are introduced into the container, and a mass concentration of 10% talcum powder, then gently stir in the same direction for 25 minutes, and then directly put it into the sturgeon incubator to continue hatching.

Embodiment 3

[0017] A secondary debonding method of Dabry's sturgeon. After the fertilized eggs of Dabry's sturgeon are hatched to the gap-like blastopore stage-wide neural plate stage, they are incubated at 18°C ​​for 54 hours, and the fertilized eggs are introduced into the container, and the mass concentration is added. It is 17% milk powder, then the goose feathers are gently stirred in the same direction for 30 minutes, and then put into the sturgeon incubator to continue hatching.

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Abstract

The invention relates to the technical field of artificial breeding, in particular to a secondary debonding method for acipenser dabryanus. The method includes the steps of placing fertilized eggs in a container after the fertilized eggs of acipenser dabryanus are hatched to the gap-shaped blastopore period-wide neural plate period and are hatched for 46 hours to 54 hours at the temperature of 18 DEG C, adding talcum powder with the mass concentration of 8% to 12% or milk powder with the mass concentration of 13% to 17%, stirring the mixture in the same direction for 15 minutes to 30 minutes, and placing the fertilized eggs in a sturgeon hatching device directly or after washing the fertilized eggs to continue to be hatched. By means of the method, stability of water flow in the hatching process is ensured, man-made stimulation of the critical period of fertilized egg hatching is reduced, the probability of fertilized egg blocking is greatly lowered, the probability of blocky water molds is lowered, the loss ratio of live eggs is decreased, and the hatchability is improved.

Description

technical field [0001] The invention relates to the technical field of artificial breeding, in particular to a secondary debonding method for Dabry's sturgeon. Background technique [0002] Dabry's sturgeon is a first-class national key protected animal and is currently in an extremely endangered state. Artificial propagation technology has become the main means to restore Dabry's sturgeon resources. In the process of artificial reproduction, according to the characteristics of fish eggs, the selection of appropriate hatching methods and hatching conditions is reproduction. [0003] Mature eggs of Acipenser dabryi are spherical, taupe or light yellow, opaque; the eggs are viscous and sinking eggs, and the mature egg membranes are divided into three layers, the outermost layer is the radial membrane, and the middle and inner layers are vitelline membranes. Eggs appear sticky 6 to 13 minutes after fertilization, and the stickiness of fertilized eggs reaches the maximum after...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 刘亚龚全赖见生赵刚杜军刘光迅李强周波何斌林珏李华苏旭涛
Owner FISHERIES INST SICHUAN ACADEMY OF AGRI SCI
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