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Ecological method for breeding young shrimps of litopenaeus vannamei in outdoor water

A technology for vannamei and prawns, which is applied to the field of ecological seedling raising in outdoor water bodies of vannamei, can solve problems such as affecting the quality of shrimp fry, and achieve the effects of improving the success rate of breeding, ensuring quality and safety, and reducing breeding risks.

Active Publication Date: 2015-05-06
HAINAN HAIYI AQUATIC PROD SEED CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem that the indoor seedling raising of Litopenaeus vannamei seriously affects the quality of shrimp seedlings, the present invention provides an ecological seedling raising method of Litopenaeus vannamei in an outdoor water body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The ecological seedling method of outdoor water body of Litopenaeus vannamei, the specific steps are as follows:

[0039] (1) The water in the nursery pond is first treated by sand filtration, chlorine disinfection, neutralization and water transfer, and the fungus phase of the pond water is adjusted before releasing the larvae;

[0040] (2) The high-quality nauplii were 80,000 / m2 3 The density is put into the nursery pond water;

[0041] (3) Before the nauplii begin to turn into flea-like larvae, insert the sea algae into the water of the nursery pond, and at the same time insert the rotifers into the water of the nursery pond;

[0042] (4) In the flea larval stage, adjust the intensity of light and the amount of algal nutrients added to keep the density of kelp at 20,000 cells / ml without aging, and the density of rotifers at 5 / ml. If the density of rotifers is found to decrease , the external source is added.

[0043] (5) During the larval stage of mys shrimp, the ...

Embodiment 2

[0048] The ecological seedling method of outdoor water body of Litopenaeus vannamei, the specific steps are as follows:

[0049] (1) The water in the nursery pond is first treated by sand filtration, chlorine disinfection, neutralization and water transfer, and the fungus phase of the pond water is adjusted before releasing the larvae;

[0050] (2) The high-quality nauplii were 100,000 / m 3 The density is put into the nursery pond water;

[0051] (3) Before the nauplii begin to turn into flea-like larvae, put high-quality and pollution-free sea algae into the nursery water at a density of 8000 cells / ml, and at the same time, put high-quality and pollution-free rotifers at a density of 10 cells / ml. into the nursery pond water.

[0052] (4) In the flea larval stage, adjust the intensity of light and the amount of algal nutrients added to keep the density of thalli at 40,000 cells / ml without aging, and the density of rotifers at 20 / ml. If the density of rotifers is found to decr...

Embodiment 3

[0058] The ecological seedling method of outdoor water body of Litopenaeus vannamei, the specific steps are as follows:

[0059] (1) The water in the nursery pond is first treated by sand filtration, chlorine disinfection, neutralization and water transfer, and the fungus phase of the pond water is adjusted before releasing the larvae;

[0060] (2) The high-quality nauplii were 90,000 / m2 3 The density is put into the nursery pond water;

[0061] (3) Before the nauplii begin to turn into flea-like larvae, put high-quality, pollution-free kelp at a density of 7000 cells / ml into the nursery pond water, and at the same time, put high-quality, pollution-free rotifers at a density of 8 cells / ml into the nursery pond water.

[0062] (4) In the flea larval stage, adjust the intensity of light to 3000 lux; the amount of nutrient added is 25 g of sodium bicarbonate, 40 g of sodium nitrate, 4 g of potassium dihydrogen phosphate, 80 g of EDTA, and 4 g of sodium silicate per 10 t of seaw...

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Abstract

The invention provides an ecological method for breeding young shrimps of litopenaeus vannamei in outdoor water. The method is characterized in that an indoor cement floor is changed into an outdoor cement floor, wherein the inoculation density of algae is controlled to be 5000-8000cell / ml; the inoculation time is controlled to the time before nauplii begin to be changed into zoea under the inoculation density; the synchronization between growth and propagation of the algae and requirements of an ecological system on the density of the algae is ensured; an inoculation density of rotifers is 5-10 / ml, and the inoculation time is the time before the nauplii begin to be changed into the zoea, thereby ensuring that the growth and propagation of the rotifers are e synchronous with the requirements of the young shrimps; the inoculation time of artemia is acanthosoma; the water transparency is retained at 80-120cm; the artemia has the effect of purifying the water; the content of ammonia nitrogen in the overall water is smaller than 0.2, and the content of nitrite is smaller than 0.02; the food intake of the young shrimps and the rotifers are not affected. Through the balance control on a young shrimp rearing water ecological system in the whole production process, the young shrimps take endogenous high-quality natural baits as the major food all the time; the cultured young shrimps of the litopenaeus vannamei are excellent in nutrition, healthy and high in quality.

Description

technical field [0001] The invention relates to aquaculture, in particular to an ecological seedling raising method for outdoor water bodies of Litopenaeus vannamei. Background technique [0002] Since the reform and opening up, my country's fishery output has increased rapidly. The transformation of fishery structure from fishing-based to aquaculture-based has been accelerating, and the development of aquaculture has grown by leaps and bounds. The average annual growth rate of aquatic product production is 16%, of which the proportion of aquaculture production in the total fishery output has increased from 30% in 1980 to 56% in 1997, making it the only major fishery country in the world whose aquaculture output exceeds fishing output. [0003] Shrimp is the earliest export-oriented aquaculture species developed after my country's reform and opening up, and it occupies an important position in my country's aquaculture industry. In 2009, the national shrimp aquaculture prod...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCA01K61/59Y02A40/81
Inventor 李文涛于明超陈蜜海李志涛邵万固陈学贝
Owner HAINAN HAIYI AQUATIC PROD SEED CO LTD
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