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A kind of silver pomfret ecological breeding method

A silver pomfret, ecological technology, applied in the field of silver pomfret ecological nursery, can solve the problem of high seedling mortality

Active Publication Date: 2022-02-15
NINGBO UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved in the present invention is to provide a silver pomfret ecological seedling raising method, thereby effectively solving the problem of high seedling mortality in the silver pomfret seedling raising process

Method used

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Experimental program
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Embodiment Construction

[0029] Describe technical method of the present invention in detail below by embodiment:

[0030] A method for ecological breeding of silver pomfret, specifically comprising: the step of collecting fertilized eggs, the step of indoor hatching, the step of fry cultivation and the step of artificial feed transition cultivation;

[0031] 1) Collect fertilized eggs

[0032] Use the drainage method to collect fertilized eggs, put a 200-mesh mesh bag on the drain, put the mesh bag in a foam box, adjust the drainage size with a valve, the drainage speed will not be too fast, and the fertilized eggs will be broken. When the drainage reaches a height of 40cm , start to add water and drain to 20cm, collect the eggs in the pool; wash the collected fertilized eggs with clean seawater 2-3 times, put the collected eggs in a small bucket with a height of 0.5m and a volume of 200L Precipitate dead eggs, repeat the precipitation twice, fertilized eggs are treated with 200-mesh fishing net and...

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Abstract

The invention relates to the technical field of aquaculture, in particular to a method for ecological breeding of silver pomfret. Specifically include: the steps of collecting fertilized eggs, hatching, fish fry cultivation and artificial feed transition cultivation. Adding probiotics and live algae water to the water body, combined with a reasonable feeding method of natural bait, reduces the amount of water change and the frequency of sewage absorption, provides a stable growth and development environment for silver pomfret fry, and greatly reduces the number of fry in the early stage of breeding mortality rate. At the same time, in the later stage of silver pomfret breeding, the use of probiotics combined with natural bait improved the adaptability of juvenile fish to artificial bait, reduced the elimination rate of juvenile fish in this period, reduced production costs, and improved seedling survival rate and Seedling raising and breeding density finally overcome the problem of silver pomfret large-scale seedling raising.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a silver pomfret ecological breeding method. Background technique [0002] Silver pomfret is one of the main marine economic fishes in my country. Its meat is delicious and has high nutritional value and market demand. Therefore, domestic researchers began to carry out the artificial breeding of silver pomfret one after another. At present, Ningbo University has made a breakthrough in the breeding of silver pomfret and completed the large-scale breeding work. However, the difficulty of artificial breeding of silver pomfret is still relatively large, mainly due to the following problems: in the process of silver pomfret breeding, it was found that the hatching rate of silver pomfret eggs was low and it was difficult to distinguish live and dead eggs, and a large number of dead eggs led to poor water quality. Dead eggs will also breed bacteria, and a large number o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A01K61/17A23K10/22A23K10/30A23K20/158A23K50/80
CPCA01K61/10A01K61/17A23K10/22A23K10/30A23K20/158A23K50/80Y02A40/81Y02A40/818
Inventor 胡佳宝王亚军徐善良陶顺顺徐万土徐芳君杨阳顾玮玮匡思雯张曼孙弋博
Owner NINGBO UNIV
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