Device for collecting parasites in large yellow croaker culture pond and method for eliminating them

Abstract

The invention provides a parasite collection device in a large yellow croaker culture pond and a parasite elimination method and relates to culture of large yellow croakers. The parasite collection device in the large yellow croaker culture pond is provided with a net cover and a base plate, wherein the size and shape of the bottom of the net cover are the same as those of the base plate; the net cover covers the base plate; and a plate edge is arranged on the base plate. The parasite elimination method in the large yellow croaker culture pond comprises the following steps: putting a flocculating agent into the base plate of the parasite collection device in the large yellow croaker culture pond and adding disinfection water; after the flocculating agent is dissolved to a gel shape, covering the net cover of the parasite collection device in the large yellow croaker culture pond; vertically putting the whole parasite collection device in the large yellow croaker culture pond into the large yellow croaker culture pond; lifting the whole parasite collection device in the large yellow croaker culture pond every day at fixed time; opening the net cover and putting the whole base plate into a disinfection pond for soaking, so as to eliminate parasites of each phase; and after washing the base plate by a high-pressure water gun, putting the flocculating agent again and collecting excrement in the large yellow croaker culture pond and the parasites of each phase again.

Description

technical field [0001] The invention relates to large yellow croaker culture, in particular to a device for collecting parasites in a large yellow croaker culture pond and a method for eliminating them. Background technique [0002] Large yellow croaker is the "national fish" of our country. It used to be the most important fishing target in our country in the 1950s and 1960s. Later, due to the overfishing of human beings, the resources of wild large yellow croaker have seriously declined, and it has been difficult to form a large yellow croaker fishing season. . By the end of the 1980s, the artificial breeding of large yellow croaker first made a breakthrough in the Ningde area of ​​Fujian, and the cage culture technology in natural sea areas was becoming more and more perfect. Large yellow croaker farming has gradually become one of the important industries in Ningde. However, due to poor water exchange conditions in the Sandu Bay area, large yellow croaker farming is to...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of parasites in indoor cultured seawater fish, most farmers adopt chemical disinfecting methods, such as acetic acid, copper sulfate ferrous sulfate mixture, formaldehyde, Chinese herbal medicine compound, etc. The biggest disadvantage of these methods is that the drugs themselves are poisonous. These are banned drugs for aquaculture; secondly, due to the large water body for aquaculture, the amount of drugs applied is large and the cost is high; third, the drugs have a certain killing effect on parasites and also cause great damage to fish, and more importantly, Parasites develop a degree of drug resistance that eventually renders chemical eradication ineffective

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