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Cultivating method for black sea bream fry and fingerling

A cultivating method and fingerling technology, which are applied to a field of cultivating black snapper fry and fingerlings, can solve the problems of farmers' losses and risks, difficulty in ensuring the number of seedlings, etc., and achieve the effects of easy manual adjustment and improvement of the breeding level.

Inactive Publication Date: 2004-03-03
汪首开
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that it is difficult to guarantee the number of seedlings, which will bring unnecessary losses and risks to farmers

Method used

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Embodiment Construction

[0006] Now the cultivation method and characteristics of black sea bream fry and fingerlings are described as follows: the cultivation method of black sea bream fry and fingerlings is divided into fry generation and cultivation; cultivation and growth of fingerlings. The first stage is the production and cultivation method of fry, which is characterized in that live fish of black sea bream are selected as brood fish in coastal fishing or fishing sea areas. The surface scale integrity glands are well developed, and the male and female broodstock are placed in a clean indoor seawater fish pond with a water depth of about 30 cm at a ratio of 1:2. While putting in the broodstock, 30PPM potassium permanganate was fully stirred and soaked for 30 minutes, and then the valve was opened to drain water. The water is drained and fed in until there is no potassium permanganate color, and then the drain valve is closed. Then raise the water level to 1.5 meters and start the aerator in the...

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Abstract

The present invention relates to sea fish cultivation. The cultivation process for black sea bream fry and breeding fish includes two stages of cultivating fry and growing breeding fish. The cultivation process includes the selection of the first generation of breeding fishes from the hooked fishes; cultivation of parent fishes in indoor cement pool containing sea water with male to female fish ratio being 1:2, hatching fish egg at artificial slow water flow condition inside indoor live box to obtain fry; and growing breeding fish in both indoor cement pool containing sea water and outdoor soil pool containing sea water. The said process is also suitable for yellow croaker and has easy-to-regulate growth condition.

Description

technical field [0001] The invention relates to the field of seawater aquaculture, and relates to a method for cultivating black sea bream fry and fingerlings. Background technique [0002] At present, most of the black snail fry for breeding are caught naturally, and the advantage is that the fry have strong adaptability to growth. The disadvantage is that it is difficult to guarantee the number of seedlings, which will bring unnecessary losses and risks to farmers. Contents of the invention [0003] The object of the present invention is to provide society with methods for cultivating black sea bream fry and fingerlings. The growth conditions of black sea bream fry and fingerlings cultivated and grown in seawater earthen ponds are consistent with the growth conditions of natural seedlings with strong growth adaptability. Because the fish fries cultivated in seawater earthen ponds are not affected by natural conditions (with the exception of irresistible disasters), the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 汪首开
Owner 汪首开
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