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Method for preparing freshwater crayfish culture nutrient water regulating agent

A technology for freshwater crayfish and nutrition, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of low efficiency of aquaculture environment improvement and single composition of water quality regulators, etc. To achieve the effect of inhibiting the immersion of germs, maintaining the balance of micro-ecology, and promoting transformation and absorption

Inactive Publication Date: 2019-01-11
浦江县酉泽水产科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water quality regulator used in this invention has a single component, and the efficiency of improving the aquaculture environment is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A preparation method of a nutrient water-adjusting agent for freshwater crayfish cultivation, comprising fermentation of microbial inoculum, cultivation of chlorella and loading, the specific steps are as follows:

[0016] Fermentation of microbial agents: place photosynthetic bacteria, yeast and Bacillus subtilis on potato sugar agar medium for slant culture; inoculate photosynthetic bacteria, yeast and Bacillus subtilis obtained after slant culture on photosynthetic bacteria, yeast Bacteria and Bacillus subtilis seed bottle culture medium are propagated, photosynthetic bacteria, saccharomycetes and Bacillus subtilis seed bottle bacterial liquid are according to the volume ratio 2:1:2, inoculate fermentation bottle with 5% inoculum mixed culture and obtain photosynthetic bacteria-yeast Bacteria-Bacillus subtilis mixed fermentation bacteria liquid, and adding protective agent; photosynthetic bacteria can degrade ammonia nitrogen, hydrogen sulfide and some harmful substan...

Embodiment 2

[0022] A preparation method of a nutrient water-adjusting agent for freshwater crayfish cultivation, comprising fermentation of microbial inoculum, cultivation of chlorella and loading, the specific steps are as follows:

[0023] Fermentation of microbial agents: place photosynthetic bacteria, yeast and Bacillus subtilis on potato sugar agar medium for slant culture; inoculate photosynthetic bacteria, yeast and Bacillus subtilis obtained after slant culture on photosynthetic bacteria, yeast Bacteria and Bacillus subtilis seed bottle culture medium are propagated, photosynthetic bacteria, saccharomycetes and Bacillus subtilis seed bottle bacteria solution are inoculated with 6% inoculum amount to ferment bottle mixed culture according to the volume ratio 2:2:3 to obtain photosynthetic bacteria-yeast Bacteria-Bacillus subtilis mixed fermentation broth, and adding protective agent;

[0024] The protective agent added in the fermentation of the above-mentioned microbial bacterial ...

Embodiment 3

[0029] A preparation method of a nutrient water-adjusting agent for freshwater crayfish cultivation, comprising fermentation of microbial inoculum, cultivation of chlorella and loading, the specific steps are as follows:

[0030] Fermentation of microbial agents: place photosynthetic bacteria, yeast and Bacillus subtilis on potato sugar agar medium for slant culture; inoculate photosynthetic bacteria, yeast and Bacillus subtilis obtained after slant culture on photosynthetic bacteria, yeast Bacteria and Bacillus subtilis seed bottle culture medium are propagated, photosynthetic bacteria, saccharomycete and Bacillus subtilis seed bottle bacterial liquid are according to the volume ratio 2:3:4, inoculate fermentation bottle with 7% inoculum mixed culture to obtain photosynthetic bacteria-yeast Bacteria-Bacillus subtilis mixed fermentation broth, and adding protective agent;

[0031] The protective agent added in the fermentation of the microbial agent is 10% by mass percentage o...

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PUM

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Abstract

The invention discloses a method for preparing a freshwater crayfish culture nutrient water regulating agent. The method comprises the steps of microbial agent fermentation, chlorella culture and loading, the microbial agent fermentation step is characterized by placing photosynthetic bacteria, saccharomycetes and bacillus subtilis on a potato sugar agar medium for slant culture; performing inoculation on the photosynthetic bacteria, saccharomycetes and bacillus subtilis obtained by slant culture to a photosynthetic bacteria, saccharomycetes and bacillus subtilis seed bottle culture medium forexpanding propagation, obtaining photosynthetic bacteria, saccharomycetes and bacillus subtilis mixed fermenting bacteria liquid through mixed culture by inoculation of a fermentation bottle, and adding a protective agent; wherein the protective agent is a combination of skim milk, xanthan gum, trehalose, sorbitol and tea polyphenol. The method has the beneficial effects that the water regulatingagent has the advantages of good fixation effect of the microbial strain and microalgae, has long time preservation in a water body, and has good antibacterial effect, can enhance the immunity of freshwater crayfish, reduces the feed coefficient, and increases digestibility of the feed.

Description

technical field [0001] The invention relates to the technical field of freshwater crayfish cultivation, in particular to a preparation method of a nutritional water-adjusting agent for freshwater crayfish cultivation. Background technique [0002] Crayfish are also called Procambarus clarkii, red crayfish and freshwater crayfish. It is shaped like a shrimp and has a hard shell. The adult is about 5.6-11.9 cm long, dark red, the carapace part is nearly black, and there is a wedge-shaped stripe on the back of the abdomen. The juvenile body is uniform gray, sometimes with black ripples. Claw long and narrow. The middle part of the carapace is not separated by mesh-like spaces, and there are obvious grains on the carapace. The forehead sword has side thorns or the end of the forehead sword has nicks. It is a freshwater economical shrimp. It is widely welcomed by people because of its delicious meat. [0003] The increasing development of aquaculture has improved people's li...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34C02F101/16C02F101/10
CPCC02F3/322C02F3/34C02F2101/101C02F2101/16C02F2103/20
Inventor 孙弋博
Owner 浦江县酉泽水产科技有限公司
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