Biological prevention and control method for controlling prawn diseases through Tilapia

Abstract

The invention discloses a biological prevention and control method for controlling prawn diseases through Tilapia. The method of the invention realizes the prevention for infectious diseases of the prawn and the increase of prawn survival rate by introducing Tilapia to prawn cultivation zones. The method of the invention can prevent prawn diseases from propagating and becoming epidemic in healthy prawn community, reduce the workload of manually removing diseased and dead prawns, enhance the removal efficiency and the cultivation success rate and bring tremendous economical benefit to the culturist.

Description

technical field

[0001] The invention relates to the field of aquaculture, in particular to a biological prevention and control method for controlling prawn diseases through tilapia. Background technique

[0002] Shrimp is a pillar species of my country's aquaculture industry. It has developed rapidly in recent years. By 2009, the aquaculture output was 1.303 million tons, and the output value exceeded 30 billion yuan. Shrimp aquaculture has become the target industry of my country's agricultural industrial structure adjustment.

[0003] However, the problem of shrimp diseases is still the main bottleneck in the development of shrimp farming industry. The outbreak of infectious diseases of prawns has a certain relationship with the habit of cannibalism of prawns themselves. In the process of shrimp farming, due to the deterioration of environmental conditions, some prawns with weak constitution and poor disease resistance are the first to get sick or even die. Caused outbr...

Examples

Embodiment

[0024] 1. Comparing with the normal management method of prawn farming, after cultivating the water, put in about 1.0cm shrimp seedlings, 50,000 to 100,000 tails per mu. Since tilapia is not suitable for living in water bodies with a salinity greater than 15, the salinity of the aquaculture water body described in the present invention is within the range of 0-15. If the salinity of the aquaculture water is greater than 15, the salinity can be reduced by adding fresh water to control the salinity within the above range.

[0025] 2. Put tilapia in time. The prawns are cultured until about 20-30 days, and the tilapias are put in before the outbreak of prawn diseases. During the breeding process, often due to the reasons of the shrimp seedlings themselves, large-scale deaths occurred in the early stage of the breeding, and there was no need to stock the tilapia before. Therefore, after 20 to 30 days of breeding, tilapias are released after the shrimp fry are stable; the number ...

technical field

[0001] The invention relates to the field of aquaculture, in particular to a biological prevention and control method for controlling prawn diseases through tilapia. Background technique

[0002] Shrimp is a pillar species of my country's aquaculture industry. It has developed rapidly in recent years. By 2009, the aquaculture output was 1.303 million tons, and the output value exceeded 30 billion yuan. Shrimp aquaculture has become the target industry of my country's agricultural industrial structure adjustment.

[0003] However, the problem of shrimp diseases is still the main bottleneck in the development of shrimp farming industry. The outbreak of infectious diseases of prawns has a certain relationship with the habit of cannibalism of prawns themselves. In the process of shrimp farming, due to the deterioration of environmental conditions, some prawns with weak constitution and poor disease resistance are the first to get sick or even die. Caused outbr...

Examples

Embodiment

[0024] 1. Comparing with the normal management method of prawn farming, after cultivating the water, put in about 1.0cm shrimp seedlings, 50,000 to 100,000 tails per mu. Since tilapia is not suitable for living in water bodies with a salinity greater than 15, the salinity of the aquaculture water body described in the present invention is within the range of 0-15. If the salinity of the aquaculture water is greater than 15, the salinity can be reduced by adding fresh water to control the salinity within the above range.

[0025] 2. Put tilapia in time. The prawns are cultured until about 20-30 days, and the tilapias are put in before the outbreak of prawn diseases. During the breeding process, often due to the reasons of the shrimp seedlings themselves, large-scale deaths occurred in the early stage of the breeding, and there was no need to stock the tilapia before. Therefore, after 20 to 30 days of breeding, tilapias are released after the shrimp fry are stable; the number ...