A kind of medicament and using method for preventing and treating freshwater melon worm disease in net cage culture

Abstract

The invention relates to a drug for control of ichthyophthiriasis disease in cage net culture and an application method. The drug for control of ichthyophthiriasis disease in cage net culture comprises the following raw materials by weight: 1-2% of deltamethrin (2.5% deltamethrin missible oil), 10-20% of kerosene and the balance of middle and fine sand with the particle size 0.25-0.50mm. The application method is as follows: after ichthyophthiriasis disease is confirmed, the ichthyophthiriasis disease is treated as follows: spraying the drug one time a day to each net cage net according to the amount of 1kg / 25m<2>, continuously using for one treatment course of 3-7 days, after the treatment course is completed, continuously observing for 3 days, and repeating one treatment course if the ichthyophthiriasis disease is found by microscopic examination. The drug for control of ichthyophthiriasis disease in cage net culture is simple and practical, low in cost and less in use amount, the treatment survival rate on early and middle stage ichthyophthiriasis disease is more than 70%, in especially, the early stage treatment survival rate is more than 90%, the drug has a certain effect on the treatment of serious infected ichthyophthiriasis disease, the survival rate is about 40% by cooperation of disinfection measures, and the effect is obvious.

Description

technical field [0001] The invention belongs to the technical field of aquaculture disease prevention and control, in particular to a medicament and a use method for cage culture to prevent and control freshwater melon worm disease. Background technique [0002] Cage aquaculture is a common aquaculture method that uses large and medium-sized waters such as rivers, lakes, and reservoirs to set up cages for fish farming. It is characterized by small land occupation, easy management, high output per unit area, and high efficiency. However, due to the open environment of the water body, the breeding density is high, and it is easily affected by external factors, resulting in the outbreak of various diseases. [0003] The freshwater melon worm parasitizes the host without strict selection and can infect almost all freshwater fish. Fish infected with the freshwater melon worm can usually see white cysts on the body surface and gills, and in severe cases, the whole body and gill f...

AI Technical Summary

Problems solved by technology

The use of simple chemical drugs and Chinese herbal medicines is relatively large in the flowing water environment of cages, which will not only pollute the environment, but also have high price and cost, and the effect is not obvious. delayed treatment