鲤鱼斜管虫病是由于鲤斜管虫大量寄生于鱼体表和鳃所至，刺激寄主分泌大量粘液，使寄主体表和鳃组织被破坏，严重影响鱼的呼吸。病鱼食欲减退，体质瘦弱。鱼体常与其他物体摩擦，致使表皮发炎、坏死脱落。鱼苗患病时，有时有拖泥症状。在水温适宜时，斜管虫迅速繁殖， 2～ 3 Carp oblique pipe worm disease is due to a large number of parasitic tube carp parasites in the fish body surface and gills to stimulate the host secretion of a large number of mucus, the host body surface and gill tissue is damaged, seriously affecting the respiration of fish. Sick fish loss of appetite, physical thinness. Fish often rub with other objects, resulting in epidermis inflammation, necrosis. When the fry is sick, sometimes there are symptoms of dragging mud. When the water temperature is appropriate, the rapid propagation of inclined tube insects, 2 ~ 3