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Method for inducing pseudo milters of gynogenesis spotted maigre

A technology of gynogenesis and yellow croaker, which is applied in the field of aquatic biology, can solve the problems that cannot meet the needs of marketization of croaker fry

Active Publication Date: 2015-01-21
MARINE FISHERIES RES INST OF ZHEJIANG
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Artificial gynogenesis has laid the foundation for the full feminization of fish, but only a very small amount of seedlings can be obtained through the method of gynogenesis, which cannot meet the market demand of yellow croaker fry. The research has important theoretical value and application value for the large-scale breeding of all-female seedlings
[0004] The full feminization of yellow croaker can well solve the problems encountered in the process of seedling breeding and cage culture. The key to the full feminization of fish is to produce fertile pseudo-male fish. Literature reports on fish pseudomale

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0023] (1) Raise the gynogenesis yellow croaker induced by the sperm of the sea bream to the age of 20 days;

[0024] (2) During the breeding period, the stocking density and the bottom area of ​​the water body should be controlled according to the age of the yellow croaker: at the age of 20-39 days, the stocking density should be 50 fish per 300L water body, and the bottom area of ​​the water body should not be less than 0.8m 2 ; At 40-69 days old, the stocking density is 50 fish per 500L water body, and the bottom area of ​​the water body should not be less than 1.25m 2 ;70-90 days old is 50 fish per 1000L water body, and the bottom area of ​​the water body should not be less than 2.00m 2

[0025] (3) From the age of 21 days, the gynogenetic yellow croaker was soaked in methyltestosterone solution every day, and the concentration of methyltestosterone solution was 2ppb (that is, 2ml of methyltestosterone mother solution was added for every 100L of aquaculture water), and th...

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Abstract

The invention discloses a method for inducing pseudo milters of gynogenesis spotted maigre and belongs to the technical field of aquatic biology. The pseudo milters of the spotted maigre can be obtained by using male hormone for induction during the breeding process of the gynogenesis spotted maigre, and the male hormone is methyltestosterone. The method is reasonable in design, the methyltestosterone is utilized for induction, induction steps are scientifically and reasonably limited, the finally obtained male rate of the gynogenesis spotted maigre can reach more than 86%, and theoretical and technical guidance is provided for qualitative breeding of the gynogenesis spotted maigre.

Description

technical field [0001] The invention belongs to the technical field of aquatic organisms, and in particular relates to a method for inducing gynogenesis of yellow croaker pseudo-male. Background technique [0002] It belongs to the order Perciformes, Sciaenidae, and Nibea. It is distributed in the Yellow Sea, the Bohai Sea, the East China Sea and the South China Sea in my country. It is a warm water middle and lower layer fish. . It grows fast, has strong disease resistance, tender meat, unique taste and delicious taste. Its swim bladder is a precious traditional Chinese medicine supplement with high edible value and medicinal value. [0003] In the process of cultivating yellow croakers in cages, it was found that female croakers are 30% heavier than males, and with the growth of crocodiles, the gap between males and females will further increase (Xu Dongdong et al., Modernization of Fisheries, 2010); Huang In the process of artificial fry raising, it was found that when t...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 陈睿毅楼宝徐冬冬刘海金詹炜毛国民徐麒翔马涛
Owner MARINE FISHERIES RES INST OF ZHEJIANG
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