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A new method of comprehensive matching for light culture of Penaeus vannamei

A technology of white shrimp and a new method, which is applied in the comprehensive supporting field of fresh-keeping Penaeus vannamei, can solve problems such as the influence of shrimp seedlings and low pH value, and achieve the effects of promoting active foraging, promoting growth and reducing mortality.

Active Publication Date: 2020-01-31
HUNAN UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under normal conditions, raising snail lions in Penaeus vannamei ponds will have a great impact, because snails are prone to release acidic substances at the bottom of the pond, making the pH value low for a long time, and affecting shrimp seedlings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Preparation of effervescent flaky Penaeus vannamei bait

[0026] (1) Preparation of microcapsule bait: Firstly, the raw materials of conventional bait for Penaeus vannamei were superfinely pulverized, and water was added to make a suspension, and then the suspension was mixed with 10 times the volume of chloroform ring with emulsifier Stir the hexane mixed solvent together for 25 minutes to form an emulsion, then add a cross-linking agent to the emulsion, continue stirring for 15 minutes, stop stirring, perform centrifugation, and disperse the sediment in a tween solution with a concentration higher than 40%, and then Then disperse in water, filter with 400-mesh nylon filter cloth, after repeated washing, filter dry, and air dry for later use;

[0027] (2) Preparation of effervescent tablets: the acidic components that make up the disintegrating agent are made into acidic granules according to the conventional method, and dried for later use; Mix and stir for 2 minu...

Embodiment 2

[0036] 1. Preparation of effervescent flaky Penaeus vannamei bait

[0037] (1) Preparation of microcapsule bait: Firstly, the raw materials of conventional bait for Penaeus vannamei were superfinely pulverized, and water was added to make a suspension, and then the suspension was mixed with 5 times the volume of chloroform ring with emulsifier Stir the hexane mixed solvent together for 20 minutes to form an emulsion, then add a cross-linking agent to the emulsion, continue stirring for 10 minutes, stop stirring, perform centrifugation, and disperse the sediment in a tween solution with a concentration higher than 40%, and then Then disperse in water, filter with 400-mesh nylon filter cloth, after repeated washing, filter dry, and air dry for later use;

[0038] (2) Preparation of effervescent tablets: the acidic components that make up the disintegrating agent are made into acidic granules according to the conventional method, and dried for later use; Mix and stir for 1 min, ...

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Abstract

The invention discloses a comprehensive matched new method for penaeus vannamei bred in fresh water. The method comprises the step that in the breeding pond of the penaeus vannamei, gurnards, catfishes and margarya melanioides are subjected to matching stocking, wherein the stocking size of the gurnards is 100 g-150 g per fish, the stocking rate is 10-15 per mu, the stocking size of the catfishes is 100 g-200 g per fish, the stocking rate is 20-30 per mu, and the stocking rate of the margarya melanioides is 50-100 kg per mu. Accordingly, the death rate of penaeus orientalis is effectively decreased, growth of the fishes is promoted while the penaeus orientalis bait utilization rate is increased, and the mouthfeel of fish meat is optimized.

Description

technical field [0001] The invention relates to the field of culture technology of Penaeus vannamei, in particular to a new comprehensive matching method for light culture of Penaeus vannamei. Background technique [0002] The meat of Penaeus vannamei is delicious, the processed meat rate can be as high as 67%, the suitable temperature range is 18-32 ℃, the suitable salt range is also wide, and it can grow under the condition of salinity 1-40‰. It is an excellent Dilution of cultured species. At present, the culture of Penaeus vannamei tends to be intensive, high-density, and high-yield, and requires a short breeding cycle. Under the conditions of large-scale intensive farming, the survival rate of Penaeus northern and southern shrimps in freshwater aquaculture is not high. The reason is the water quality of shrimp farming. The root cause of affecting the water quality of shrimp farming is the bait problem. Too much residual bait will lead to eutrophication of the water bo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/59A01K63/04A23K50/80C02F1/66
CPCA01K63/042C02F1/66C02F2209/06Y02A40/81Y02A40/818
Inventor 杨品红王文彬刘良国罗玉双韩庆
Owner HUNAN UNIV OF ARTS & SCI
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