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Method for cage culture of spotted maigre

A technology for cage culture and yellow croaker, which is applied in fish farming, application, climate change adaptation, etc., to achieve good quality, reduce breeding costs, and have economic value

Inactive Publication Date: 2008-10-29
MARIN & FISHERY INST ZHEJIANG OCEAN UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, there are no public reports on the production of seawater cage culture by using the compensated growth mechanism of marine cultured croaker for efficient feeding, reducing the amount of feed to reduce production costs, and improving fish quality.

Method used

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Embodiment Construction

[0019] Seawater net cage culture is located in natural harbors, which itself has the conditions such as water temperature and salinity required for cultivating yellow croaker. The present invention proposes to use fish compensation growth benefits to raise yellow croaker in seawater cages. Innovative and reasonable feeding methods, different fish body weights, the starvation time of the resulting compensation growth mechanism is not the same, therefore, the feeding method proposed in the present invention is aimed at different body weights of croakers, including feeding methods , daily feeding amount, feeding frequency and appropriate breeding density, the specific examples are as follows:

[0020] 1. Feeding method of yellow croaker with body weight in the range of 10-100 grams

[0021] Stocking density: 80-800 fish / cubic meter, starvation for 4 days-feeding for 36 days-starvation for 4 days-feeding for 36 days, and cycle breeding management; Take samples every 10 days to me...

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Abstract

The invention relates to a cultivation method of spotted maigre in seawater cage culturing industry, which pertains to the technical field of agriculture mariculture. By utilizing different starvation time produced by compensation growth mechanism of spotted maigre with different weight, the invention puts forward different feeding methods for spotted maigre with different weight; the feeding methods include daily feeding amount, feeding frequency and stocking density which is suitable with the feeding frequency. The feed utilization rate of feed by adopting the method of the invention is improved by 13.7 percent; labor cost and feed cost of the cultivation is reduced, the fat content of the cultured spotted maigre is 5 percent to 10 percent lower than that of conventional cultivation, while the protein content is increased by 10 percent to 15 percent, which is conducive to human health, and the output value is increased by 28.3 percent; the cultivation method of the invention has good economic benefit, is an innovative seawater cage culturing method and can be applied for popularization.

Description

[0001] The invention relates to a culture technique for raising croaker in net cages in the seawater culture industry, and belongs to the technical field of agricultural seawater culture. Background technique [0002] Compared with algae, shellfish and shrimp culture, my country's marine fish cage culture started relatively late, but it has developed rapidly. Productive cage culture started in Guangdong in the late 1970s and 1980s. In recent years, due to the serious shortage of marine fish resources and the entry into force of the China-Japan and China-Korea Fishery Agreements, seawater fish cage culture has become a major fishery industry in coastal provinces and cities in my country. Structural adjustment, fisherman's priority development industry. In addition, with the development of markets in Southeast Asia, Hong Kong, Macao and Taiwan and the improvement of the living standards of the domestic people, the demand for fresh and high-quality marine fish is increasing, which...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 楼宝史会来毛国民吴祖杰骆季安郑代明
Owner MARIN & FISHERY INST ZHEJIANG OCEAN UNIV
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