-
Causes and Prevention Methods of Spring Viremia in Koi Farming
Spring viremia of koi is mainly caused by koi rhabdovirus, and is a common disease in koi keeping. It only becomes prevalent in spring when the climate gradually warms (water temperature 13 to 20°C). Symptoms: It mainly affects koi over one year old; fry and broodstock are rarely infected....
-
How to raise koi so they grow fast? Causes of Chilodonella and treatment methods
Chilodonella symptoms: During the fry stage, it mainly damages the skin and fin rays. In adult fish, besides attacking the skin, it also heavily infests the gills, oral mucosa and nostrils. When the fish body and gill filaments are irritated by large numbers of pathogens, it causes excessive mucus secretion, which glues the gill lamellae together...
-
Causes and Treatment Methods of Koi Carp Gill Rot Disease
Symptoms of gill disease (1) Commonly known as "open skylight", the gill filaments rot and carry mud; in severe cases, the cartilage at the ends of the gill filaments is exposed, the inner epidermis of the operculum is congested, and the central epidermis is often corroded into a round transparent small hole. (2) Gill mold disease caused by fungi: the gills of diseased fish appear pale...
-
Symptoms, causes, and treatment methods of white head and white mouth disease in koi
Causes of white head and white mouth disease in koi. White head and white mouth disease can also be caused by a massive invasion of Trichodina. Symptoms: sick fish move slowly, body color is slightly dark, and the top of the head and area around the mouth turn white. Taking tissue from the affected area to make a slide and examining it under a microscope, you can see clusters of parasitic flower bacteria constantly swinging, or you can see groups of Trichodina moving. The pigment in the skin of the forehead and around the mouth of the sick fish disappears, appearing white.
条件筛选