Words from a Wet Vet – fish health management Archives

To investigate if KHV genomic DNA is present in koi exposed to KHV infection, 10 healthy fish were investigated from a koi population with a history of a KHV outbreak. Please make sure if you purchase Koi, you know of its reputable source and that you have a quarantine system in place. Later, you could get or spread an infection that those antibiotics cannot cure. The role of surgical decompression remains investigational. Two of the biggest health concerns among koi breeders are the koi herpes virus (KHV) and Rhabdovirus carpio, which causes spring viraemia of carp (SVC). Two of the biggest health concerns among koi breeders are the koi herpes virus (KHV) and Rhabdovirus carpio, which causes spring viraemia of carp (SVC). Two of the biggest health concerns among koi breeders are the koi herpes virus (KHV) and Rhabdovirus carpio, which causes spring viraemia of carp (SVC).

Two of the biggest health concerns among koi breeders are the koi herpes virus (KHV) and Rhabdovirus carpio, which causes spring viraemia of carp (SVC). Two of the biggest health concerns among koi breeders are the koi herpes virus (KHV) and Rhabdovirus carpio, which causes spring viraemia of carp (SVC). Two of the biggest health concerns among koi breeders are the koi herpes virus (KHV) and Rhabdovirus carpio, which causes spring viraemia of carp (SVC). However, caution is urged in handling affected carp because as they decompose, they become susceptible to multiple secondary bacterial infections that can cause illness in humans. Text is available under the CC BY-SA 4.0 license; additional terms may apply. Two of the biggest health concerns among koi breeders are the koi herpes virus (KHV) and Rhabdovirus carpio, which causes spring viraemia of carp (SVC). To investigate if KHV genomic DNA is present in koi exposed to KHV infection, 10 healthy fish were investigated from a koi population with a history of a KHV outbreak.


Genomic DNA sequences were used to optimize a rapid real-time TaqMan PCR assay to detect and quantify KHV DNA as found in the tissues of virus-exposed fish. But the really frustrating thing, is that when any symptoms manifest, the fish may already have the disease. When these sores erupt on or close to the lips or inside the mouth, they are commonly called cold sores or fever blisters. Furthermore, fish then seem to be more susceptible to secondary infections by bacterial, parasitic or fungal pathogens which may cause further mortality within the population. This virus has also been named koi herpesvirus, koi herpes-like virus, and cyprinid herpesvirus 3. There were few consistent internal signs in either outbreak. All KHV mutants were replication competent in cultured cells.

Koi are usually held in closed circuit systems to ensure good health, many of the skills and knowledge refer to the ability of the hobbyist, to create optimal  filtering systems and thus an optimum water quality . Approximately 50% of the hybrids examined at 25 d after intraperitoneal injection with either CyHV-2 or CyHV-3 possessed viral genomic DNA, as detected by polymerase chain reaction assays. According to an information sheet published by the University of Florida, KHV has an 80 to 100 percent mortality rate. The organism is stable on a dry swab. You might recall that people and critters can be infected with things called “viruses”. Another juicy treat for your Koi are prawns. Another juicy treat for your Koi are prawns.

The Koi Herpes Virus or KHV is no joke. Koi originated back in 800AD where they were bred for food by isolated farmers in what is now the Niigata Prefecture, North West of Tokyo. Koi Herpes Virus Treatment Use this information at your own risk. The fish had been purchased 1 hour before from Ray Abell (And had been in quarantine for 7 weeks.) This fish had been in pond with Bill’s infected fish for that 1 hr. While hybrids of koi × goldfish were partly resistant to mortality following infection by immersion, most koi × crucian carp hybrids died after bath infection. Keeping your cold sores, my sky dry and without your body at all times. Department of Natural Resources officials say the koi herpes virus is not harmful to humans or other fish.

Ideally the temperature of the quarantine tank water should be 23º C (or 2º –3º C greater than the temperature of the pond water if the pond water is 23º C or greater). This is not small-pox, but herpes which is not transmitted to humans. Japanese Koi fish are hardy fish, possibly only goldfish can compare with them. The koi hobby has been rocked by a fearsome virus which everyone seems to be getting with their new fish lately. It can be easily recognized by frayed fins. Wisconsin DNR evaluated water conditions and did not discover any factor of temperature, dissolved oxygen, etc that might have caused the die off.

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