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Preparation method for algae-culturing agent for aquaculture

A technology of using algae-cultivating agent and aquaculture, applied in the preparation and application of organic fertilizers, fertilizers made from biological wastes, etc., can solve the problems of environmental factors, single effect, and no development, etc. The effect of accelerating growth and reproduction and enhancing metabolic function

Inactive Publication Date: 2016-11-09
HOHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, by adding traditional fertilizers such as quicklime, urea, superphosphate, fermented chicken manure, livestock and poultry manure, or adding water quality regulators such as yeast powder or EM microbial agent, there is a certain effect of cultivating algae, but the existence or effect of these substances Single, does not have the defects of building a good and stable algae phase, or is greatly affected by environmental factors, and the algae cultivation effect is unstable.

Method used

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  • Preparation method for algae-culturing agent for aquaculture
  • Preparation method for algae-culturing agent for aquaculture
  • Preparation method for algae-culturing agent for aquaculture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The attapulgite at the particle size of Example 1 has strong cohesiveness under extrusion conditions, and the contained toxic elements such as mercury, lead, and arsenic are respectively lower than the national standards.

[0030] Take 10kg of dry chicken manure, pass through a 10-mesh sieve, mix well, and add 40mL of EM active calcium solution. The method is to dilute the EM active calcium solution, spray evenly on the mixed dry chicken manure, adjust the water content to about 40% with chlorine-free water, and carry out airtight anaerobic fermentation at 35°C for 5 days. Take 5.5kg of the above-mentioned anaerobic fermented chicken manure, 2kg of fish meal, 1.5kg of bean cake, 0.5kg of spirulina dry powder, and 0.5kg of EM solid bokashi, first crush the above raw materials respectively, pass through a 60-mesh sieve, mix well, and evenly spray 1% The EM stock solution is controlled at about 40% water content, stacked and fermented at room temperature for 25 days, and d...

Embodiment 2

[0032] Take 10kg of dry chicken manure, pass through a 20-mesh sieve, mix well, and add 50mL of EM active calcium solution. The method is to dilute the EM active calcium solution, spray evenly on the mixed dry chicken manure, adjust the water content to about 40% with chlorine-free water, and carry out airtight anaerobic fermentation at 30°C for 6 days. Take 5.0kg of the above-mentioned anaerobic fermented chicken manure, 2.5kg of fish meal, 1.5kg of bean cake, 0.5kg of spirulina dry powder, and 0.5kg of EM solid bokashi. %EM stock solution, so that the water content is controlled at about 40%, stacked and fermented at room temperature for 23 days, and dried until the mass water content is less than or equal to 30%. Then add 200 grams of attapulgite clay through a 200-mesh sieve to the above-mentioned fermentation material, mix evenly, granulate with a granulator, the particle diameter is 5.0mm, and dry at 50°C, with a mass water content of about 12%.

Embodiment 3

[0034] Take 10kg of dry chicken manure, pass through a 10-mesh sieve, mix well, and add 30mL EM active calcium solution. The method is to dilute the EM active calcium solution, spray evenly on the mixed dry chicken manure, adjust the water content to about 40% with chlorine-free water, and carry out airtight anaerobic fermentation at 25°C for 5 days. Take 5.0kg of the above-mentioned anaerobic fermented chicken manure, 2.0kg of fish meal, 2.0kg of bean cake, 0.5kg of dry spirulina powder, and 0.5kg of EM solid bokashi. %EM stock solution, so that the water content is controlled at about 40%, stacked and fermented at room temperature for 24 days, and dried until the mass water content is less than or equal to 30%. Then add 200 grams of attapulgite clay through a 200-mesh sieve to the above-mentioned fermentation material, mix evenly, granulate with a granulator, the particle diameter is 5.0mm, and dry at 50°C, with a mass water content of about 12%.

[0035] The algae cultivatio...

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Abstract

The invention discloses a preparation method for an algae-culturing agent for aquaculture. According to the method, chicken manure, bean cake, fish meat and other organic materials and an EM active calcium solution with powerful functions are subjected to co-fermentation by employing a micro-ecology theory according to the growth characteristic of algae, during fermentation, a large amount of ionic-state and chelated-state algae somatomedin, nutritive salts, trace elements and minerals, and a special mixing and pelletizing technology is employed for preparing the algae-culturing agent. Concrete steps of the preparation method comprise (1) anaerobic fermentation; (2) aerobic fermentation; and (3) pelletization. The prepared algae-culturing agent for aquaculture possesses advantages of comprehensive nutrition, good algae culturing effect and the like, and is applicable to growth of algae in water of breeding fish, shrimps, crabs and shells and improvement of water quality.

Description

technical field [0001] The invention belongs to the category of aquaculture, and in particular relates to an algae cultivator suitable for algae growth and water quality improvement in fish, shrimp, crab and shellfish culture water and a preparation method thereof. Background technique [0002] Among all photosynthetic organisms, microalgae have the strongest photosynthetic ability and fast growth and reproduction speed. Under the conditions of nitrogen, phosphorus and other nutrients and suitable light conditions, they can quickly form a population advantage in the water body and achieve rapid growth. Reduce the concentration of nitrogen and phosphorus in the water body and increase the effect of dissolved oxygen in the water body. At the same time, microalgae are easily ingested by zooplankton and filter-feeding animals, which can promote the circulation of nutrients, reduce the feed coefficient, and improve the survival rate of farmed animals. Therefore, microalgae not o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05F15/00C05F17/00
CPCC05D9/00C05F1/002C05F9/04C05F17/50C05G3/00C05G5/12C05F3/00C05F5/006C05F11/00C05F11/08Y02W30/40
Inventor 邵孝侯秦恒基邵雅璐徐达灵毛欣宇杨绪常婷婷廖林仙
Owner HOHAI UNIV
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