Method for cultivating epinephelus lanceolatus fries

A breeding method, the technology of saddle grouper, which is applied in fish farming, climate change adaptation, animal feed, etc., can solve the problems of cannibalism of fish fry, lack of attention, and impact on seedling production, so as to reduce cannibalism and The effect of cannibalism

Inactive Publication Date: 2021-04-16
海南青利水产繁殖有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The deficiency of above-mentioned technical scheme is: do not pay attention to juvenile stage, the cannibalism phenomenon of fry
Since the density of artificial seedlings is much higher than that of natural breeding in the wild, if the nursery personnel do not pay attention to this, it may cause most of the fry to be eaten by the same kind, which will seriously affect the output of seedlings.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of cultivation method of saddle grouper fry, is characterized in that: it comprises the following steps:

[0040] s1, environmental conditions for raising seedlings;

[0041] Among them, the environmental conditions for raising seedlings in step 1 include the cement cultivation pond and the environmental quantity of the cultivation. The requirements for the cement cultivation pond are: a rectangular cement pond with an area of ​​15 to 35m 2 , a circular arc angle, a smooth wall at the bottom of the pond, and a depth of 1.3 to 1.5 square meters. m; the environmental requirements for seedling cultivation are: dissolved oxygen 4-6mg / L, pH value 7.8-8.5, salinity 28-35, water temperature 24-35°C, light intensity 2000-15000lx, indoor controllable dimming facilities, seedling room Good ventilation. Lay plastic hoses around the cement cultivation pool, branch out the trachea every 3 meters, connect the aerated stones and put them into the cement cultivation pond to inf...

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Abstract

The invention relates to the technical field of aquaculture, in particular to a method for cultivating epinephelus lanceolatus fries. The method comprises the steps that seedling environment conditions are selected; seedling raising preparation work is carried out; egg laying density is arranged; feeding management is carried out; and the water quality is regulated and controlled. In the feeding management, when individuals with the body length exceeding 19 mm are found at the juvenile stage of 18-29 days old, chironomidae larvae are put at the density of 1 piece/ml, firstly, the chironomidae larvae are put at the juvenile stage, and the chironomidae larvae act in water to attract the attention of fries and prey the fries, so that the phenomenon that the same kind of fries are disable is relieved; and then, the juvenile fishes of various body types are physically isolated through screening, and the phenomenon that the juvenile fishes kill one another is further relieved.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for cultivating saddle grouper fry. Background technique [0002] A Chinese patent discloses a method for industrialized artificial breeding of saddle grouper, patent No. 200910247115.X, which records: 1. Environmental conditions for seedling raising, 2. Preparation for seedling raising, 3. Egg laying density, 4. Feeding management, 5. Water quality control. The beneficial effect of the present invention is: adopting the saddle grouper seedling raising method of the present invention has the advantages of fast growth of fry, high survival rate and little influence by external natural conditions. [0003] The deficiency of above-mentioned technical scheme is: do not pay attention to juvenile stage, the phenomenon of cannibalism of fry. [0004] Compared with other marine fishes, the saddle grouper is more serious about killing and devouring each other. When the body...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/95A23K50/80A23K10/20
CPCY02A40/81
Inventor 杨薇刘青利刘扬高刘扬溪刘扬山刘扬峰
Owner 海南青利水产繁殖有限公司
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