Both Chlorovibrio and Flavivibrio are harmful, but Chlorovibrio is more harmful. The infection route of Vibrio is mainly oral transmission, followed by entering the body of aquatic animals through body surface wounds and gills. In fact, Vibrio is present in the food eaten by many aquatic animals, such as lugworms. In the mother shrimp stage, if you feed it silkworms, it will be easily infected with Vibrio. There are also Vibrio bacteria in Artemia worms. When feeding Artemia worms to aquatic animals, Vibrio must be controlled.

1. Which one is harmful, Chlorovibrio or Flavivibrio

1. Chlorovibrio and Flavivibrio are both harmful, but Chlorovibrio is more harmful. The infection route of Vibrio is mainly oral transmission, followed by entering the body of aquatic animals through surface wounds and gills. To prevent Chlorovibrio and Flavivibrio, you can splash lime water throughout the pond. This is a good method to use when Vibrio exceeds the standard. When the number of Vibrio in the water environment exceeds the theoretical threshold, but the number of total heterotrophic bacteria in the water reaches more than 30 times the number of Vibrio, it is still safe for aquatic animals, but Bdellovibrio and Bdellovibrio must be regularly sprayed Clostridium butyricum and other beneficial bacteria.

2. The food of many aquatic animals may carry Chlorovibrio and Flavivibrio. Taking shrimp as an example, if shrimps are fed lugworms during their mother stage, they will be easily infected with Vibrio. For this reason, it is recommended to use microbial agents to control the number of Vibrio in the shrimp mother pond and wash the eggs at the same time, which can improve the survival rate of the hatched larvae in later cultivation.

3. If artemia is used to cultivate shrimp larvae, Vibrio must be controlled at this time. At this stage, correct chemical control methods must be used, otherwise it may affect the development of intestinal cells of shrimp larvae, causing the shrimp to have symptoms of large areas of "jejunum and empty stomach".

2. What impact does Chlorovibrio have on fish?

1. Chlorovibrio causes vibriosis in fish, which is the most common bacterial disease in seawater fish. disease. The most common symptom of vibriosis is skin ulcers on the surface of fish. In the early stage of infection, the body color will also fade in patches, and the fish will have a loss of appetite and swim slowly on the water surface; in moderate infection, the base of the fish's fins will appear. Spot-like bleeding may occur on the , trunk, etc.

2. When preventing and controlling Chlorovibrio, special attention should be paid to the development and transformation of the fish liver and pancreas in the first 30-40 days. If the liver transfer is smooth and the liver function is complete, the immunity of the fish body will be good. , less susceptible to Vibrio infection. Even if there is a small amount of Vibrio in the pool water, the fish may not become sick.

3. When fish are found to have early symptoms of Vibrio infection, such as dark color and spots on the body, this indicates that the condition is beginning to worsen. At this time, the EM bacteria must be sprayed in time to protect the liver and intestines, kill the Vibrio in the hepatopancreas and intestines, and avoid further infection.