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Method for promoting maturation of pampus argenteus gonads

A technology for maturation and gonads, applied in the field of promoting the maturation of silver pomfret gonads, can solve the problems of ineffective gonadotropin development, strong stress response, broodstock death, etc., achieves good application prospects, promotes synchronous development, reduces Effects of stressful stress

Inactive Publication Date: 2014-09-03
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the living habits of silver pomfret itself, the stress response is strong, and the conventional injection method is easy to cause the death and injury of broodstock, which leads to the ineffective effect of gonadotropic development.
Therefore, there are still many difficulties in promoting the gonad development of silver pomfret through conventional injection methods.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Specifications of broodstock pond: round shape, inner diameter 6m, depth 1.5m, bottom of the pond is pot-shaped, central sewage, water level maintained at 85cm.

[0026] Water temperature control: In this test stage, the water temperature is kept at 18±0.5°C by means of boiler heating.

[0027] Illumination control: During the test period, when the surface light intensity of the broodstock pond is greater than 700lx, the light intensity is controlled at 600~650lx by laying a sunshade net above the pond.

[0028] Feed composition: the protein content of the test is 44%, wherein the addition ratio of fish meal in the feed is 45%; the fat content is 13%, wherein the addition ratio of marine fish oil in the feed is 8%; the content of vitamin E in the feed is 400mg / kg.

[0029] Water flow rate: place a water pump at the bottom of the broodstock pond, and place the water outlet of the water pump above the water surface close to the pool wall through the water pipe. The powe...

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PUM

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Abstract

The invention relates to a method for promoting maturation of pampus argenteus gonads, comprising controlling specifications, a water level, a water temperature, light, and feed nutrient compositions of a parent fish pond, and a flow rate of water in the parent fish pond. The method of the invention reduces stressed sexual coercion caused by actions such as injecting and the like, improves the survival rate of parent fish, and promotes synchronous development of gonads. Nutrients required by gonad development can be satisfied to a maximum degree by nutrient enrichment, maturation of the gonads is accelerated and development quality of the gonads is improved.

Description

technical field [0001] The invention belongs to the field of fish gonad development, in particular to a method for promoting the development and maturation of silver pomfret gonads. Background technique [0002] Silver pomfret (Pampus argenteus), also known as white pomfret, is a marine economic fish widely distributed in the southeast coast of my country, with high nutritional value and market demand. In recent years, due to overfishing and the deterioration of the sea water environment, the germplasm resources of silver pomfret have shown obvious signs of decline. Therefore, carrying out research on artificial breeding of silver pomfret is not only beneficial to the protection of the current germplasm resources, but also has important social significance for promoting the diversified development of fish farming in my country. In recent years, researchers have overcome the bottleneck of artificial breeding and breeding of silver pomfret, but it is still difficult to achiev...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 彭士明施兆鸿孙鹏尹飞王建钢
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI