Biological prevention and control method for controlling prawn diseases with clarias lazera

Abstract

The invention discloses a biological prevention and control method for controlling prawn diseases with clarias lazera. According to the method provided by the invention, clarias lazeras are added into a prawn culture zone, such that prawn infectious disease prevention is realized, and prawn survival rate is improved. With the method, prawn diseases can be prevented from spreading in healthy prawn populations; work load of artificially removing diseased and dead prawns is reduced; removing efficiency and culture success rate are improved; and higher economic benefit is brought to farmers.

Description

Technical field [0001] The invention relates to the field of aquaculture, in particular to a biological prevention and control method for controlling shrimp diseases by clarias catfish. Background technique [0002] Shrimp is the mainstay species of my country's aquaculture industry. It has developed rapidly in recent years. By 2009, its aquaculture output was 1.303 million tons, with an output value of more than 30 billion yuan. The amount of foreign exchange earned by exports ranked first in my country's aquatic product exports, reaching US$1.23 billion. Shrimp aquaculture has become the target industry of my country's agricultural industrial restructuring. [0003] However, the problem of shrimp diseases is still the main bottleneck for the development of shrimp aquaculture. The outbreak of prawn infectious diseases has a certain relationship with the habit of prawns to eat each other. In the process of prawn farming, due to the deterioration of environmental conditions, indiv...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a culture method for improving the survival rate of prawns according to the existing shrimp infectious diseases that spread quickly, and the removal of diseased shrimps is not thorough and timely.