Key points of disease prevention in cultured Penaeus vannamei

Penaeus vannamei, also known as Penaeus vannamei, has an average life span of more than 32 months and has a high yield, so it is very popular among farmers. So, what are the key points of disease prevention in breeding Penaeus vannamei? Let's get to know it together.

1. Select the environment

Choosing a good culture environment is the primary factor to prevent the occurrence of diseases. The culture area should choose places with sufficient water source, clean water quality, leeward to the sun, quiet and no noise, far from the urban area and far from the traffic line. determine the area of the culture pond according to the number of culture, or vice versa, but it needs to be equipped with storage and disinfection ponds equal to the area of the culture pond, and there should be a good drainage system in the shrimp pond. It is convenient for water exchange and disinfection in the later stage, and oxygen supply equipment should be prepared to prevent insufficient dissolved oxygen in water.

2. Clear the silt and clear the pond

First of all, it is necessary to clean up the silt in the shrimp pond according to the changing characteristics of the four seasons, because after raising the shrimp pond for a period of time, the bottom of the shrimp pond will accumulate a large amount of silt, which is the favorite environment for bacteria. If these silt and bacteria are not treated in time, it will lead to poor water quality in the shrimp pond, which is the basic condition for the survival of white shrimp. The poor water quality will greatly affect the growth environment of white shrimp. As a result, it is easy to cause diseases of white prawns, so according to the changes of the four seasons, choose a reasonable time to clean up the pond thoroughly, clean up all the silt and bacteria at the bottom of the pond, and improve the living environment of shrimp.

3. Stocking density

In many cases, the outbreak of a large number of diseases of Penaeus vannamei is due to over-dense feeding, reasonable control of breeding density, in order to better control the breeding density, avoid over-concentration of breeding, and reduce the contact between white shrimp and the transmission of bacteria, the shrimp groups should be raised in batches. Now the common culture method is to put a certain number of grids in the shrimp ponds and put the white shrimp groups into the grid in batches to raise separately. In this way, we can not only find sick shrimp in time, deal with it in time, avoid diseases caused by infectious diseases, but also better control and management.

4. Master the growth situation

In the process of culture, it is necessary to make a schedule for inspection and inspection, inspect regularly every day to see if there are any anomalies, inspect some white shrimp during each inspection, analyze and check the situation of white shrimp, and if the existence of diseased shrimp is found, the disease should be judged according to its growth status and symptoms, and all white shrimp should be checked in time according to the disease. Isolate all the diseased shrimp, dissect the diseased shrimp, find out the cause of the disease, and then take corresponding control to the remaining white shrimp to improve the control ability of white shrimp and reduce the mortality caused by the disease.

The above are the key points of disease prevention in the culture of Penaeus vannamei. Have you learned them all?