Method for preventing and treating amylovorous protomyxozoan disease of juvenile pristipomoides sieboldii

By combining stepwise medicated baths with curcumin and formaldehyde solutions with physical water flow removal, the highly pathogenic problem of dinoflagellate disease in juvenile striped sawfish was solved, achieving efficient, safe, and environmentally friendly prevention and control, significantly reducing mortality and increasing survival rates.

CN122375518APending Publication Date: 2026-07-14JIANGSU COASTAL DEV & INVESTMENT CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU COASTAL DEV & INVESTMENT CO LTD
Filing Date
2026-06-04
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Current technologies are ineffective in preventing and controlling Amylodinosis in juvenile striped sawfish, especially during hot seasons when water quality deteriorates, leading to the rapid spread of highly pathogenic parasites. This results in rapid infection and high mortality. Existing drug treatments also present problems such as poor safety, drug resistance, and environmental pollution.

Method used

A stepwise medicated bath of curcumin and formaldehyde solution combined with physical water flow removal method was adopted. By using specific concentrations and operating parameters, curcumin and formaldehyde solution were used for medicated baths in sequence, combined with counterclockwise water flow and oxygen supply through nano-trachea, to achieve comprehensive attack and gill filament repair of Amylodinium ovalis.

Benefits of technology

It significantly improves the cure rate, reduces the mortality rate of juvenile fish, increases the survival rate to over 95%, reduces the toxic stress response of drugs to fish, is environmentally friendly, easy to operate, and has significant economic benefits.

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Abstract

This invention discloses a method for preventing and controlling Amylodinosis in juvenile striped sawfish, comprising: observing the state of juvenile striped sawfish in the culture pond; if juveniles are found huddled together or swimming on the bottom or surface of the pond, and confirmed by microscopic examination to be infected with Amylodinosis, draining the culture pond to 1 / 2 full for the first time and stopping the water intake; first, administering a medicated bath with 0.75-1.5 mg / L curcumin while maintaining oxygenation; then, filling the pond to full capacity for the first time, followed by a second drainage; subsequently, administering a second medicated bath with 80-110 ppm formaldehyde solution by spraying the entire pond while maintaining oxygenation; after filling the pond to full capacity for the second time, draining it to 1 / 2 full and restoring normal water flow; stopping feeding during the medicated bath; repeating the above medicated bath steps the next day. It uses a specific concentration of curcumin and formaldehyde solution for synergistic treatment, combined with specific drainage, water inflow control and oxygenation operations, to remove the starchy dinoflagellates and vortices attached to the gills, fins and body surface of juvenile striped sawfish by the force of the water flow, thereby improving the survival rate of diseased juvenile fish.
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