Freshwater fish sepsis, the disease is mainly harmful to carp, crucian carp, silver carp, bighead carp, tuantou bream, mandarin, snakehead, carp and other fish, from summer flowers, fish species to adult fish can be infected. It is not only intensive ponds that are diseased

Freshwater fish sepsis, the disease is mainly harmful to carp, crucian carp, silver carp, bighead carp, tuantou bream, mandarin, snakehead, carp and other fish, from summer flowers, fish species to adult fish can be infected. Diseases occur not only in intensive ponds, but also in cages, nets, reservoirs and fish farming. The order in which this disease causes dead fish is generally: silver carp, crucian carp, grass, bighead carp, carp, bream...

When the water temperature continues to be above 28 °C in the high temperature season and the water temperature conditions that remain above 25 °C after the high temperature season, it is most likely to break out and endanger fish of various sizes.

The epidemic time is from March to November, and June to September is the high incidence season of the disease; The most suitable water temperature for the onset is 25 to 32 °C; It is endemic at water temperatures ranging from 9 to 36 °C, especially above 24 °C, and the condition eased after the water temperature dropped in October.

It is generally believed that a variety of pathogenic pathogens are a kind of conditional pathogenic bacteria, only under certain conditions will cause fish disease, water temperature and climate mutations, water quality deterioration, parasitic infections, low immunity of fish body is an important cause of disease outbreaks.