Diagnosis and prevention of viral enteritis and bacterial enteritis in fish

Diagnosis and prevention of viral enteritis and bacterial enteritis in fish

The intestinal walls of diseased fish were all red. However, viral enteritis also has oral cavity, top of the head, operculum, orbit, fin, muscle and other filling phenomena, which do harm to large grass carp fingers. this disease belongs to grass carp hemorrhagic disease. On the other hand, bacterial enteritis has no hyperemia such as muscle and fin, which is characterized by enlarged abdomen, red and swollen anus, light yellow mucus outflow from the anus under light pressure, which harms one-year-old grass carp and herring species.

Methods for the prevention and treatment of viral enteritis: one is to inject live vaccine against grass carp hemorrhagic disease during stocking. The second is to use 30 kilograms of quicklime per mu and sprinkle the whole pool continuously the next day.

Methods for the prevention and treatment of bacterial enteritis: sprinkle the whole pool with 1ppm bleached and powdered water, and at the same time take 20g of fish per 100kg of fish every day or directly feed 500g of live fish per 100kg of fish every day for three consecutive days.