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Nutritional control method for broodstock reproduction of highly feminized seedlings of half-smooth tongue sole in the Yellow River estuary

A semi-smooth tongue sole and nutritional regulation technology, which is applied in fish farming, climate change adaptation, application, etc., can solve the problems of no academic papers published, and the ratio of males and females troubles farmers, so as to save breeding costs, solve the problem of mothering rate, The effect of promoting development

Active Publication Date: 2021-06-11
利津县双瀛水产苗种有限责任公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Semi-smooth tongue sole seedling cultivation is mainly based on industrial workshop cultivation. So far, the problem of sex ratio of semi-smooth tongue sole seedlings has been bothering farmers, and no relevant academic papers have been published

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1 environmental conditions

[0035] 1.1 selection

[0036] Choosing sufficient water source, no pollution, convenient drainage, sufficient groundwater source, convenient transportation, strong electricity and region of freshwater water sources.

[0037] 1.2 Water quality conditions

[0038] The water source water quality meets the provisions of GB / 11607, and cultivates water in accordance with NY5052.

[0039] 2 kinds, seedlings penetrating facilities

[0040] Reservoir, sedimentation tank, sand filter (sand filter can), oxygenation facilities, lifting temperature facilities, pilgrimage tank, seedling breeding pool.

[0041] 3 parents selection

[0042] 3.1 Source

[0043] First, wild fish in natural sea districts, can be used as a broth after cultivation of artificial domestication and nutrition. Second, individuals with fast growth rate and excellent growth properties in artificial breeding populations.

[0044] 3.2 appearance

[0045] Normal body color, strong physical...

Embodiment 2

[0103] Method for breeding high-paper seedlings in the Yellow River mouth, including: parental sources and selection, daily management,

[0104] (1) Parental source and selection: The 3-4-year-old half-slip tongue (female) that has been breed once has been propagated, a total of 1000 tails, in order to ensure the purity of the fish, the acquisition of wild semi-sliding tongue 500 tail, all over 2kg, Each pool is 100kg weight in weight.

[0105] (2) Daily management: Monitoring indexes include temperature, salinity, dissolved oxygen, pH, ammonia nitrogen and other conventional water quality indicators, record the daily change and quarter change of various physicochemical indicators and adjust, maintain the stability of water quality, Double-tooth hawning silkworm is feeding. Water is filled with water, the water is clear and transparent; water temperature: 23 ° C; salinity: 28-32 ‰; pH: 7.8-8.6; dissolved oxygen: 6mg / l or more; ammonia nitrogen: less than 0.1 mg / L;

[0106] (3)...

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Abstract

The invention relates to the technical field of half-smooth tongue sole reproduction, in particular to a method for breeding highly feminized fry of half-smooth tongue sole broodstock in the Yellow River estuary by nutritional regulation. Including the source and selection of parents, breeding of broodstock, artificial oxytocin insemination and hatching, and seed cultivation, the present invention optimizes the control mode, strengthens the nutrition of the double-toothed clamworm, and controls the temperature to lay eggs and fertilize them. The fertilization rate is 83.5%, and the hatching rate is 74.6% %, the ratio of male to female is 5:2. The invention solves the problem of the breeding rate of the farmers, greatly saves the breeding costs of the farmers, brings huge direct economic benefits to the farmers, and further promotes the development of the semi-smooth tongue sole industrialized breeding industry.

Description

Technical field [0001] The present invention relates to the technical field of semi-slip tongue breeding, in particular a method of nutrient-regulating the yellow-sliding tongue of the Yellow River. Background technique [0002] Half-slip tongue is an important economic seawater fish in northern my country. Its meat is delicate, delicious, nutritious, has always been a good product for my country's coastal consumers to visit, is favored, the northern default "Spring Flower Autumn" is referring to the fall Eating the meant food. In recent years, seawater fish farming has a big impact on the water wave of Daxai, and the price of marine fish is sluggish. Many marine fish have sluggish, and the half-slip tongue has been in high-grade fish, which is small in the market. The market demand is large, the capture is small, and the market demand cannot be met; although artificial breeding and development have been carried out for many years, due to the difficulty of breeding, the multi-mul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 杨建新徐扬涛陈守温王旭宋其峰张廷丽
Owner 利津县双瀛水产苗种有限责任公司
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