Compound dry powder and preparation method thereof

A dry powder and compound technology, which is applied in the field of compound dry powder and its preparation, can solve the problems of poor control effect, easy pollution of the environment, complicated operation, etc., and achieve the effect of preventing and controlling saprolegniasis, convenient use, and moderate cost

Inactive Publication Date: 2015-03-25
INST OF MICROBIOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the embodiment of the present invention is to provide a compound dry powder and its preparation method, aiming to solve the problems of poor

Method used

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  • Compound dry powder and preparation method thereof
  • Compound dry powder and preparation method thereof
  • Compound dry powder and preparation method thereof

Examples

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Example Embodiment

[0022] Such as figure 1 As shown, the preparation method of the compound dry powder in the embodiment of the present invention includes the following steps:

[0023] S101: It is composed of the following components by weight percentage: Usnea longissima 40%-60%, Litmus sphaerocarpa 20%-40%, Litmus 10%-20%, Snow tea 2%-10%;

[0024] S102: Mix the naturally dried usnea longum, litmus black, litmus and lichen body of snow tea according to the set ratio, pulverize with a Chinese herbal medicine grinder, pass through an 80-mesh screen, and mix thoroughly to make a powder; The four kinds of dry lichens can also be crushed by a Chinese herbal medicine pulverizer, and after passing through an 80-mesh net, samples are taken according to the set ratio and mixed thoroughly to make a powder. .

[0025] The use method of the compound dry powder in the embodiment of the present invention:

[0026] Dissolve in 20 times 95% ethanol and then sprinkle. Dosage: According to the concentration of 0.2ppm...

Example Embodiment

[0034] Example 1 Prevention and control of water mold in aquaculture 1. Use method: soak in 95% ethanol of 20 times the quality of the preparation for 4 hours, and directly sprinkle into water with a concentration of 0.4 ppm. The mass ratios of the four medicinal lichens in the formula are: Usnea longissima 50, Litmus nigra 30, Litmus 15 and Xuecha 5.

[0035] Crucian carp breeding ponds were selected in Hongze County, Jiangsu Province: 30 mu in the control group, 25 mu in the prevention group, and 40 mu in the treatment group.

[0036] Set up the control group, the prevention group and the treatment group in the same farm. The control group and the prevention group were selected in the ponds where the disease was not yet onset during the season of high incidence. The treatment group took samples before the test, and confirmed it as fungal saprolegnia through visual diagnosis and separation microscopy, and selected ponds with an incidence of 30-60% or more.

[0037] The test result...

Example Embodiment

[0038] Example 2 Aquaculture Water Mould Prevention and Control II. Usage: Soak in 95% ethanol for 5 hours, and directly splash into the water body with a concentration of 0.3 ppm. The mass ratios of the four medicinal lichens in the formula are: Usnea 55, Litmus nigra 25, Litmus 15, and Xuecha 5.

[0039] The intensive grass carp ponds selected in Hongze County, Jiangsu Province were: 50 mu in the control group and 60 mu in the treatment group. Set up the control group and the treatment group in the same farm. The control group was selected in the ponds where the disease was not yet onset during the high-incidence season. The treatment group took samples before the test, and confirmed it as fungal saprolegnia through visual diagnosis and separation microscopy, and selected ponds with an incidence of more than 40%.

[0040] The test results showed that the average incidence rate was 40-60% and the mortality rate was 20-40% in the control pond during the disease-prone season; the ...

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Abstract

The invention discloses compound dry powder and a preparation method thereof. The compound dry powder disclosed by the invention is composed of the following components in percentage by weight: 40-60% of usnea longissima, 20-40% of cladonia amaurocraea, 10-20% of litmus, and 2-10% of vermiculate thamnolia thallus. The preparation method of the compound dry powder disclosed by the invention comprises the following steps of: mixing and crushing usnea longissima, cladonia amaurocraea, litmus and vermiculate thamnolia thallus, and sieving through a 80mesh sieve so as to obtain the compound dry powder. The compound dry powder, containing lichen secondary metabolites including usnic acid, thamnolic acid and atranorine as effective components, is a medicine, which is definite in formula, proper in cost, safe, high-efficiency and convenient to use; saprolegniasis frequently occurring in aquaculture can be effectively prevented and controlled; the compound dry powder, containing the lichen secondary metabolites including usnic acid, thamnolic acid and atranorine as the effective components, accords with food and drug safety requirements and is a novel safe and high-efficiency medicine for preventing and controlling saprolegniasis; furthermore, the adopted lichens are easy to obtain; and the compound dry powder is safe and harmless to people, livestock and cultured aquatic organisms in a used dosage range.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a compound dry powder and a preparation method thereof. Background technique [0002] Saprolegniasis, also known as Dermatomyucosis, is a common aquaculture disease caused by oomycetes and filamentous fungi. The most important pathogens are Oomycota and Oomycetes ( Species of the genera Saprolegnia and Achlya in the order Saprolegniales, Saprolegniaceae, Oomyctes. For a long time, the prevention and control of saprolegniasis has been the most difficult problem in the prevention and control of fish diseases. Traditionally, oomycetes belong to the fungi kingdom, and in the field of aquaculture, they are generally classified as fungal diseases. Fungal diseases are difficult to cure. Saprolegniasis is prevalent in breeding areas at home and abroad. The oomycete that causes saprolegniasis exists widely in freshwater waters, and has a wide range of adaptability to te...

Claims

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Application Information

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IPC IPC(8): A61K36/09A61K9/14A61P31/10
Inventor 郭守玉
Owner INST OF MICROBIOLOGY - CHINESE ACAD OF SCI
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