Method for efficiently purifying artemia used in shrimp breeding period

A technology of purification treatment and nursery stage, applied in chemistry, animal husbandry, etc., can solve the problems of increasing the risk of disease outbreaks in shrimp seedlings, and achieve the effect of reducing the probability of disease

Pending Publication Date: 2022-07-05
ZHEJIANG INST OF FRESH WATER FISHERIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most shrimp nursery companies only disinfect Artemia eggs, and feed them directly as bait after hatching to nauplii (about 24-30h). According to the microbial diversity results of the Artemia hatching system carried out in the early stage, The enrichment of microorganisms during hatching, especially the high abundance of Vibrio, tends to increase the risk of disease outbreaks during the breeding of shrimp fry

Method used

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  • Method for efficiently purifying artemia used in shrimp breeding period
  • Method for efficiently purifying artemia used in shrimp breeding period
  • Method for efficiently purifying artemia used in shrimp breeding period

Examples

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Effect test

Embodiment 1

[0033] A method for efficiently purifying and treating Artemia for shrimp seedling breeding period, comprising the following steps:

[0034] (1) Take out the frozen Artemia eggs and place them at room temperature for 2 days to wake up the dormant eggs.

[0035] (2) Load it into a 120-mesh nylon sieve mesh, and wash it with water repeatedly.

[0036] (3) Move into the formalin solution whose mass concentration is 200mg / kg, soak and disinfect for 30min (or soak for 30min with a mass concentration of 300mg / kg sodium hypochlorite solution (available chlorine content is 10%), and use large soda to neutralize after soaking residual chlorine).

[0037] (4) Put the sterilized eggs into the hatching tank (pool) at a rate of 3g per liter of water for hatching, keep the water temperature at 27°C and the salinity at 2, and carry out vigorous ventilation, and hatch the larvae after 18h.

[0038] (5) Separation of nauplii: First, stop breathing for 10 minutes, and use a 150-mesh Artemia c...

Embodiment 2

[0042] A method for efficiently purifying and treating Artemia for shrimp seedling breeding period, comprising the following steps:

[0043] (1) Take out the frozen Artemia eggs and place them at room temperature for 3 days to wake up the dormant eggs.

[0044] (2) Load it into a 120-mesh nylon sieve mesh, and wash it with water repeatedly.

[0045] (3) Move into the formalin solution whose mass concentration is 200mg / kg, soak and disinfect for 30min (or soak for 30min with a mass concentration of 300mg / kg sodium hypochlorite solution (available chlorine content is 10%), and use large soda to neutralize after soaking residual chlorine).

[0046] (4) Put the sterilized eggs into the hatching tank (pool) at a rate of 3.5g per liter of water for hatching, keep the water temperature at 28°C and the salinity at 3, and carry out vigorous ventilation, and hatch the larvae after 20h.

[0047] (5) Separation of nauplii: First, stop breathing for 10 minutes, and use a 150-mesh Artemia...

Embodiment 3

[0051] A method for efficiently purifying and treating Artemia for shrimp seedling breeding period, comprising the following steps:

[0052] (1) Take out the frozen Artemia eggs and place them at room temperature for 3 days to wake up the dormant eggs.

[0053] (2) Load it into a 120-mesh nylon sieve mesh, and wash it with water repeatedly.

[0054](3) Move into the formalin solution whose mass concentration is 200mg / kg, soak and disinfect for 30min (or soak for 30min with a mass concentration of 300mg / kg sodium hypochlorite solution (available chlorine content is 10%), and use large soda to neutralize after soaking residual chlorine).

[0055] (4) Put the sterilized eggs into the hatching tank (pool) at the ratio of 4g per liter of water for hatching, keep the water temperature at 30°C and the salinity at 3, and carry out vigorous ventilation, and hatch the larvae after 24h.

[0056] (5) Separation of nauplii: First, stop breathing for 10 minutes, and use a 150-mesh Artemia...

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Abstract

The invention discloses a method for efficiently purifying artemia used in a shrimp breeding period, and belongs to the field of biological bait purification treatment. The method comprises the following steps: (1) pretreating artemia cysts, and hatching larvae; and (2) separating and collecting nauplii, soaking and disinfecting the nauplii for 15-30 minutes by using strong chlorine concentrate with the mass concentration of 0.5-1.5 ppm before feeding the shrimps in the breeding period, and then washing the nauplii so as to feed the shrimps in a separated manner. According to the method, vibrio and other pathogens possibly carried in the biological bait can be remarkably removed, and the risk of disease outbreak in the shrimp fry breeding process is effectively reduced.

Description

technical field [0001] The invention relates to the field of biological bait purification and treatment, in particular to a method for efficiently purifying and treating Artemia for shrimp seedling breeding period. Background technique [0002] Artemia, also known as brine shrimp or artemia, is a typical non-selective filter-feeding small crustacean widely distributed in high-salt water bodies such as coastal solar salt pans and inland salt lakes. Artemia has the advantages of high nutritional value, easy preservation of dormant eggs, and simple hatching operation. It is widely used in aquatic breeding, especially shrimp breeding, and is an important biological bait for shrimp breeding. my country is a big country in aquaculture, and the demand for Artemia eggs in my country ranks first in the world, accounting for about 50% of the total global demand. At present, most of the Artemia eggs circulating in the market come from inland salt lakes in China, the United States, Rus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/033A61L2/18A61L101/44A61L101/06A61L101/32
CPCA01K67/033A61L2/0088A61L2101/44A61L2101/06A61L2101/32
Inventor 徐洋程海华高强李喜莲孟纪伦徐宾朋黄振远慎佩晶
Owner ZHEJIANG INST OF FRESH WATER FISHERIES
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