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Low-salinity artificial brooding and fresh-water culturing method for fugus

A freshwater aquaculture and low-salinity technology, applied in fish farming, application, climate change adaptation, etc., can solve the problems of overfishing and resource reduction by fishermen, and achieve the effect of tender meat, rich nutrition, and significant economic benefits

Inactive Publication Date: 2002-08-14
虞建辉
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] Takifugu flavidus (Takifugu flavidus) is an aquatic product with high economic value. It has high protein content, tender meat and rich nutrition. It is an important economic fish for coastal people's consumption and foreign trade export. The oriental porpoise comes from offshore fishing. Due to high prices for many years, fishermen have overfished and overfished, resulting in a sharp decrease in resources and the gradual miniaturization of individuals.

Method used

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Examples

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Embodiment

[0017] A low-salinity artificial seedling raising and freshwater culture method for puffer chrysanthemum, comprising the following steps in sequence:

[0018] (1) Breeding of broodstock: Select the chrysanthemum yellow puffer that has reached the age of 2, and place it in a salinity of 12‰~8‰ (example 12‰, 10‰, 8‰), pH7.0~8.5 (example 7.0, 7.4, 7.7, 8.0, 8.2, 8.5), water temperature 16-24°C (Example 16, 18, 20, 22, 24°C) in ponds, the bait uses rotifers (or eel feed, surimi, fish meal, the above-mentioned bait can also contain Vitamins and / or vegetable oils), the daily feeding amount is about 4-6% of the broodstock weight (for example 4%, 5%, 6%);

[0019] (2) Artificial insemination and hatching: first inject hormones into the broodstock to induce labor, and the injections are divided into two times, and inject LRH-A to the female broodstock for the first time 2 15~30μg / Kg (Example 15, 20, 25, 30μg / Kg), male broodstock exempted from injection, after 4-7 hours (Example 4, 5, ...

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Abstract

A low-solinity artificial brooding and fresh-water culturing method for tawny puffer includes such steps as culturing parent fish, artificial insemination, artificial brooding, culturing minnow, and culturing in fresh water. Its advantages include unique method, simple operation, and high quality of tawny puffer.

Description

Technical field: [0001] The invention relates to a freshwater culture method for seawater fish. Background technique: [0002] Takifugu flavidus (Takifugu flavidus) is an aquatic product with high economic value. It has high protein content, tender meat and rich nutrition. It is an important economic fish for coastal people's consumption and foreign trade export. The oriental porpoise comes from offshore fishing. Due to high prices for many years, fishermen have overfished and overfished, resulting in a sharp decrease in resources and the gradual miniaturization of individuals. Invention content: [0003] The object of the present invention is to provide a low-salinity artificial seedling raising and freshwater culture method of puffer chrysanthemum, which can form large-scale production. [0004] Technical solution of the present invention is: [0005] A low-salinity artificial seedling raising and freshwater culture method for puffer chrysanthemum, characterized in tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 虞建辉
Owner 虞建辉
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