Koi Herpes Virus short for KHV is a deadly virus that can cause 80-100 percent mortality in common carp. The first outbreak of Koi Herpes Virus was reported in 1998 and confirmed in 1999 in Israel. Since then, other cases in the United States, Europe and Asia and has been confirmed.
The signs of KHV are often non-specific. You need to monitor a Koi Fish, if your koi to remain near the surface swimming slowly, exhibits respiratory distress, has Gill lesions, hasGill marbled with red and white patches, bleeding gills, has sunken eyes, pale patches or blisters on the skin and uncoordinated swimming. The KHV seems to spread in the same way as most of herpes viruses: direct contact with infected fish, with fluids from infected fish and / or water or mud from infected systems. Once a fish were exposed to the virus, there will always be a carrier. There is no known cure for Koi Herpes Virus. The mortality of koi herpes virus relatedusually occurs between 18 ° C and 27 ° C. Almost no casualties in less than 18 ° C, and there has been no reported outbreaks of the disease over 30 ° C.
How do you find Koi Fish has KHV? You will need the help of a specialist in fish health and fish disease diagnostic laboratory. There are direct and indirect methods.
Direct methods include: virus isolation and identification (it is growing the virus or not), and PCR techniques (it means testing forthe presence of KHV genes).
Indirect tests for KHV are ELISA tests for antibodies, which can be detected by the fish against the herpes virus this test that looks prepared to give a fish infected with KHV. This indirect test can not determine whether the fish or infected with a virus so that it is not recommended as a primary diagnostic tool.
As I mentioned earlier, there is no known treatment for KHV and the mortality is very high. When your koi fishwith koi herpes virus diagnosed, unfortunately, you have no other choice than to have the depopulation (it means) the elimination of the entire population. This approach should have contacted the infected fish by disinfection of all materials and systems, are respected.
Here you will find free information and pictures about Koi Fish at Koi site.
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