Application of tannin in killing and prevention of in-vitro parasites of aquaculture animals

A technology for ectoparasites and aquatic animals, applied to medical preparations containing active ingredients, drug combinations, organic active ingredients, etc., can solve the problems of melon worms without significant curative effect, environmental pollution, drug residues, etc., to achieve extermination Remarkable effect, good dissolution effect, less residue effect

Inactive Publication Date: 2017-11-07
ZHEJIANG INST OF FRESH WATER FISHERIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most effective drugs to treat this parasite are mercurous nitrate and malachite green, and these two drugs have carcinogenic effects, so they have been banned
With the prohibition of these two drugs, formaldehyde, copper sulfate, potassium permanganate, bronopol, etc. are mainly used for the prevention and treatment of this parasite at home and abroad at present, but these drugs have no significant curative effect on the small melon worm. The use has brought problems such as drug residues, environmental pollution, and drug resistance, so there is an urgent need for drugs with specific effects on melon worms

Method used

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  • Application of tannin in killing and prevention of in-vitro parasites of aquaculture animals
  • Application of tannin in killing and prevention of in-vitro parasites of aquaculture animals
  • Application of tannin in killing and prevention of in-vitro parasites of aquaculture animals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 25g of tannic acid, stir and dissolve in water, weigh 10g of surfactant Tween-20, weigh 10g of penetrant, weigh 5g of synergist, add the remaining amount of water, mix and stir evenly to obtain the insecticide .

Embodiment 2

[0029] Weigh 30g of tannic acid, stir and dissolve in water, weigh 5g of surfactant Tween-20, weigh 10g of penetrant, weigh 5g of synergist, add the remaining amount of water, mix and stir evenly to obtain the insecticide .

Embodiment 3

[0031] Weigh 28g of tannic acid, stir and dissolve in water, weigh 10g of surfactant Tween-20, weigh 10g of penetrant, weigh 5g of synergist, add the remaining amount of water, mix and stir evenly to obtain the insecticide .

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PUM

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Abstract

The invention discloses the application of tannic acid in killing and preventing ectoparasites of aquatic animals, and further, the application of tannic acid in killing and preventing external freshwater melon worms and seawater-stimulated Cryptocaryon of aquatic animals. Low toxicity, non-toxic to aquatic animals, less residue.

Description

technical field [0001] The invention belongs to the technical field of application of chemical products, in particular to the application of tannic acid in killing and preventing ectoparasites of aquatic animals. Background technique [0002] Tannic acid, also known as tannic acid, exists in many trees and fruits, and its structural formula is: [0003] [0004] Tannic acid has a wide range of uses. It has been used in medicine to treat pharyngitis, tonsillitis, hemorrhoids and skin herpes, etc. It can be used internally to prevent diarrhea and intestinal bleeding. Tannic acid can form precipitation with metals, alkaloids and glycosides (see glycosides), and has a detoxifying effect on these substances. Tannic acid can be used for tanning, ink making, paper and silk gluing, boiler descaling, etc. It can also be used as a mordant, a clarifying agent for beer and wine, and a coagulant for rubber, etc., but it has little effect on killing parasites. Not yet reported. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K31/7024A61P33/14
CPCA61K31/7024
Inventor 姚嘉赟徐洋袁雪梅沈锦玉潘晓艺尹文林蔺凌云
Owner ZHEJIANG INST OF FRESH WATER FISHERIES
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