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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 control effect, complicated operation, low safety and easy pollution of the environment in the existing agents for the prevention and treatment of saprolegniasis

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

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preparation example Construction

[0022] Such as figure 1 Shown, the preparation method of the compound dry powder of the embodiment of the present invention comprises the following steps:

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

[0024] S102: Mix the lichens of Usnea longissima, Litmus smutii, Litmus and snow tea in a set ratio, pulverize them with a Chinese herbal medicine grinder, pass through an 80-mesh sieve, and fully mix them to make a powder; The four kinds of dried lichens can also be pulverized by a Chinese herbal medicine pulverizer, passed through an 80-mesh screen, and then sampled according to the set ratio, fully mixed, and then made into a powder. .

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

[0026] Make it soluble in 20 times of 95% ethanol and then sprinkle it. Dosage: According to the concentration of...

Embodiment 1

[0034]Embodiment 1 Aquaculture saprolegniasis control 1, using method: 95% ethanol soaking 4 hours of preparation mass 20 times, directly splashing in the water body, concentration is 0.4ppm. The mass ratios of the four kinds of medicinal lichens in the formula are: Usnea longissima 50, Litmus nigra 30, Lichen 15, Snow tea 5.

[0035] Select crucian carp culture pond in Hongze County, Jiangsu Province and be respectively: control group 30 mus, prevention group 25 mus, treatment group 40 mus.

[0036] The control group, prevention group and treatment group were respectively set up in the same farm. The control group and the prevention group were respectively selected in the ponds that had not yet developed the disease in the season of high incidence of the disease. The treatment group was sampled before the test, and it was confirmed as fungal saprolegniasis through visual diagnosis and separation microscope inspection, and ponds with an incidence rate of more than 30-60% were...

Embodiment 2

[0038] Embodiment 2 Prevention and treatment of Saprolegniasis in aquaculture 2. Use method: soak in 95% ethanol for 5 hours, and directly sprinkle it into the water body with a concentration of 0.3 ppm. The mass ratios of the four medicinal lichens in the formula are: Usnea longissima 55, Litmus smutii 25, Litmus 15, Snow tea 5.

[0039] Selecting intensive grass carp ponds in Hongze County, Jiangsu Province is respectively: 50 mu of control groups and 60 mu of treatment groups. A control group and a treatment group were set up in the same farm. The control group was selected from ponds that had not yet developed diseases during the season of high disease incidence. The treatment group was sampled before the test, and the fungal saprolegniasis was confirmed by visual diagnosis and separation microscope, and ponds with an incidence rate of more than 40% were selected.

[0040] The test results showed that in the control pond, the average incidence rate was 40-60% and the mor...

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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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