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Cage culture method of speckled trout

A technology for cage culture and spotted trout, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of developing a cage culture method for spotted trout, lack of experience and technical solutions for feeding and daily management, etc. The effect of lowering temperature, saving investment and fast growth rate

Active Publication Date: 2013-12-18
MARICULTURE INST OF SHANDONG PROVINCE
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Problems solved by technology

However, so far, there has not been a technical solution for the cage culture method of spotted trout developed according to my country's sea conditions, especially there is no experience and technical solutions for reference in terms of feeding and daily management.

Method used

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Embodiment Construction

[0031] Speckled trout cage culture method of the present invention comprises the following steps:

[0032] 1. Fabrication and use of culture cages

[0033] Deep-water cages made of HDPE materials can be used. The perimeter of the cage is 30-100m, and the depth of the cage is 5-20m. Large-scale offshore farming. It is also possible to use a simple cage with a specification of length × width × depth of 2~4m×2~4m×3~5m, and the mesh of the cage is 0.3~0.5cm.

[0034] 2. Environmental conditions in the sea area

[0035] The physical and chemical factors of water quality in cage culture sea areas should meet the following requirements:

[0036] 2.1 Water quality: There is no pollution source on the sea surface near the breeding area, and the water quality is clear, meeting the national fishery secondary water quality standard.

[0037] 2.2 Wind and waves: subject to the anti-wind and wave specifications of the culture cages used, usually the maximum wave height does not exceed 5...

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PUM

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Abstract

The invention provides a cage culture method of the speckled trout. The method includes production and application of culture cages, satisfying the requirements of a culture zone environment, setting culture density, feed preparation, feeding, and daily management. The speckled trough is fed by means of periodic starvation; for example, feeding is stopped for one day after the speckled trough is fed continuously for 7 days; accordingly, feed conversion rate and speckled trough yield are increased. Astaxanthin is added to the feed, so that meat color of the speckled trout is improved evidently.

Description

Background technique [0001] Speckled trout is a kind of salmon trout, which is a cold-water anadromous fish. It is mainly distributed in North American countries. Because of its high yield, it is also cultured in large quantities in Norway, Chile and other countries. The suitable water temperature for spotted trout growth is 0-21 ℃, and the optimum growth water temperature is 10-18 ℃. It can survive in the range of salinity 0-33. It has strong stress resistance and fast growth rate. , It can grow to 2-3kg in 1 year, and 5kg in 2 years. [0002] Speckled trout has tender meat, unique taste, high nutritional value, few spines, and high meat yield. It is the first choice for making sashimi and smoked salmon. Spotted trout has high economic benefits, and its weight can reach 5 after 2 years of breeding. kg, calculated according to the current market price of 40 yuan / kg and the breeding cost of 15-20 yuan / kg, the profit per tail is more than 100 yuan; in the international market, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 高凤祥张少春房慧王雪郭文潘雷胡发文菅玉霞
Owner MARICULTURE INST OF SHANDONG PROVINCE
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