Prevention and Treatment Methods for Fish Louse Disease in Ayu Farming
Pathogen The pathogen is the fish louse. Symptoms The fish louse parasitizes the body surface and gills of ayu, sucking the blood of the ayu and causing the fish to gradually become emaciated. When feeding, the fish louse pierces the fish's skin with its mouth spines and mandibles, creating many wounds that then become infected with microorganisms, causing death. Prevention and treatment ① Before stocking, the fish pond is cleared with quicklime while still holding water, killing adult lice, larvae and egg masses in the water. ② Bathe the fish in a 30 ppm formalin dilution for 12 hours, for 3 consecutive days. ③ Use trichlorfon 0.
Pathogen The pathogen is the fish louse. Symptoms The fish louse parasitizes the body surface and gills of ayu, sucking the blood of the ayu and causing the fish to gradually become emaciated. When feeding, the fish louse pierces the fish's skin with its mouth spines and mandibles, creating many wounds that then become infected with microorganisms, causing death.
Prevention and treatment
① Before stocking, the fish pond is cleared with quicklime while still holding water, killing adult lice, larvae and egg masses in the water.
② Bathe the fish in a 30 ppm formalin dilution for 12 hours, for 3 consecutive days.
③ Spray trichlorfon at 0.2 ppm to 0.5 ppm over the whole pond, once a day, for two consecutive treatments.