What are the causes of crayfish white spot disease? How to treat it?

In recent years, the market price of crayfish is still considerable. It is understood that the price of crayfish will rise to 40 yuan a catty in 2017, and the price trend will be stable in 2018, keeping it at about 20-30 yuan a catty. Attract a lot of novice farmers breeding lobster to make money, crayfish breeding process is the most likely disease is white spot disease, so what are the causes of crayfish white spot disease? How to cure it? To introduce you as follows:

I. Introduction to crayfish white spot disease

1. Symptoms of white spot disease

Crayfish weak grass, reduced activity, reduced food intake, fluid accumulation in the body, easy peeling of skull shell, white color of hepatopancreas, rapid increase in mortality, related symptoms indicate that crayfish has suffered from white spot disease.

2. Time of onset of white spot disease in crayfish

White spot disease usually occurs in May of each year, which is the outbreak period of white spot disease in lower lobster. It is mainly caused by the decay of aquatic plants, abnormal weather, deterioration of substrate and excessive density.

II. What are the causes of crayfish white spot disease?

1. The first cause of white spot disease of crayfish is that there are too many shrimps in the pond and no timely treatment of pond separation;

2. The second reason for the occurrence of white spot disease in crayfish is that the feed is fed late and the quantity is insufficient;

3. The third cause of white spot disease of crayfish is that young shrimp are stocked in the season of disease, and the fishing and transportation are not standardized;

4. The fourth reason for the occurrence of white spot disease of crayfish is that the stocking time of seedlings in the same pond is too long, especially a small number of supplementary seedlings in the breeding pond;5. The fifth reason for the occurrence of white spot disease of crayfish is that the water grass planting in the pond is not standardized and the water quality is turbid;

6. The sixth cause of white spot disease of crayfish is small-eye cage fishing, shrimp sorting after catching shrimp back to the pond;

7. The seventh cause of crayfish white spot disease is stress response, which is one of the important causes of disease.

The above 7 points are the main reasons for the occurrence of white spot disease in crayfish.

Third, how to treat crayfish white spot disease?

1. Sprinkle quicklime or calcium dihydrogen phosphate in time to improve water quality;

2. Change water or flush water into shrimp ditch in time to buffer the deterioration of water quality;

3. Treatment of white spot disease of crayfish by feeding with allicin or antibiotics;

4. Go to the agricultural materials store to consult staff or consult experienced crayfish farming experts to see what agents can be purchased to treat white spot symptoms.

The above 4 points are the introduction of crayfish white spot disease treatment.

IV. What are the prevention and control measures for crayfish white spot disease?

1. Thorough disinfection of the pond every year, iodine preparation is the most ideal;

2. stocking healthy and high-quality seedlings and controlling seedling density;

3. Feeding concentrate feed in advance to improve the disease resistance of shrimp;

4. Regulate the quality of aquaculture water, regularly sprinkle chlorine preparations or microbial preparations;

5. Transplant and cultivate good aquatic plants to improve the bottom quality of culture pond.

The above 5 points are the introduction of crayfish white spot disease prevention measures.

Summary: The above content is the introduction of the causes and treatment methods of crayfish white spot disease introduced by the soil flow network, hoping to help farmers in need. This article is integrated into the Internet.