Because the nutritional value and economic value of the California perch are very high, so the California perch in the country's breeding range increased in a large area, but with the increase of high-density culture of California perch, the breeding environment gradually deteriorated, and its disease problems are becoming more and more serious, the following to introduce to you about the California perch parasite-related problems.
1. California perch wheelworm
Wheelworms mainly parasitize the gills of fish, the surface of the fish body, etc. The main impact is the California perch fry, a large number of parasites can cause the fish body to swim slowly, slow response, poor feeding, severe can lead to a large number of fry death, wheelworm adult stage, will induce bacterial infection. Prevention and control recommendations: use wheelworm special fish medicine car static mixture internal, check every 2-3 days, early detection and early treatment, otherwise it will bring great economic losses to farmers.
2. Oblique tubeworm
Bulbophyllum incategories predominates in fish gills, at the surface of the body. The parasites of the oblique tubeworm are mainly manifested as slow swimming, but also on the side or floating water, and in severe cases, it will lead to rotten gills, causing infection and the phenomenon of hanging dirty, resulting in death. Prevention and control recommendations: use the special fish herb to repel parasites, because the intracula is more difficult to deal with, so after the insecticide needs to be checked again, if there is still and production, it needs to be used again.
3. Ringworms
Ringworms mainly parasitize the gills of fish, and there will be more mucus when the gills are opened, resulting in parasites infecting diseased fish with difficulty breathing, whitish gills, and slow swimming. Prevention and control recommendations: Use Che Jing mixture to take internally, Che Jing paralyzes the parasite's nervous system, so that the worm body loses adhesion and vitality.
4. Anchorhead bream
Anchorhead loach mainly parasitizes at the surface of the fish body, when a small amount of anchorhead bream parasitizes in the fish body is, there are no obvious symptoms, and a large number of parasitism can lead to irritability in the fish, loss of appetite and induce bacterial infection. Prevention and control recommendations: use the special insect repellent fish medicine Maosporang qing for anchor head loach, and take it internally in the mixture. Maosporine has the characteristics of blocking the nerve conduction and energy metabolism of parasites, affecting the protein metabolism of insects;