Diagnostic Testing for Koi Herpes Virus

Diagnostic Testing for Koi Herpes Virus

Protecting Valuable Koi Stocks

Koi Herpes Virus (KHV) is a distressing and deadly disease of common carp (Cyprinus carpio) and all its wild and ornamental varieties including mirror, leather, ghost and koi.

Within a carp stocked water, the disease is spread through fish to fish contact. However, poorly disinfected fishing tackle, fishery management equipment and even contaminated water, can transfer the virus between unconnected carp habitats.

Visual and Behavioural Changes

KHV infection shows itself as patches of white or brown dead tissue on the fish’s gills. Skin elsewhere on the fish might appear rough and flaking. A loss of protective mucus makes virus-infected carp feel dry when handled. Behavioural changes can include lethargy and hanging still in the water. KHV damage to a fish’s gills makes getting enough oxygen from the water stressful, so KHV affected fish may gather near aeration points such as inlets or fountains. Tissue damage leaves koi carp vulnerable to secondary invasion by parasitic fungi and bacteria.

As spring approaches, and water temperatures rise toward the virus’s activating temperature of 16-degree centigrade, carp fisheries and ornamental stocks – including mirror carp, leather carp, koi and ghost koi, risk large-scale mortalities of up to 100%.

Halting the movement of Infectious Stock 

The Fish Health Inspectorate (FHI), Part A of the UK Government’s Centre for Environment, Fisheries and Aquaculture (Cefas) requires notification whenever KHV is suspected in carp stocked waters. In response, the FHI may temporarily suspend access to the affected water and halt the movement of potentially infectious stocks and equipment. After mortalities have ceased, FHI may prohibit restocking with carp species until after the following summer. This is to ensure that seasonally warming water doesn’t provoke a renewed outbreak. Even so, there is no guarantee that replacement stock won’t pick up an infection from surviving fish.

There is no treatment or cure for KHV, and because the virus may persist in fish surviving any outbreak of the virus, only careful biosecurity-management and constant monitoring offer any protection against potentially devastating infection.

FASTest Koi HV is a 15-minute pond-side test giving a clear colour-change signal if Koi Herpes Virus is detected. Based on specific monoclonal antibody technology, the long shelf life kit requires no refrigerated storage.

To find out more about our large range of veterinary diagnostic test kits visit our website: www.vetlabsupplies.co.uk or Telephone: 01798 874567

COVID-19 Update

As the impact of COVID-19, is being felt around the world, the well-being of our employees and their families is of the highest importance to us.

By putting the safety of our employees first, we have reduced our on-site staff to a minimum and we will endeavour to maintain our business operations to the highest standard possible.

We are carefully monitoring and following official guidance from the UK Government, Public Health England, WHO and CDC guidelines and in line with these; we are currently operating business as usual.

We are monitoring our stock levels on a daily basis ensuring a fair distribution of our products. We are fully committed to maintaining the supply of products during these unprecedented times.

We are open for orders from Monday through to Thursday and closing on Fridays:

Friday Closure:  For any technical queries, orders or enquiries please do one of the following:
• Email: info@vetlabsupplies.co.uk.
• Fax: 01798 874787
• Telephone & leave a message: 01798 874567

We will endeavour to contact you on Friday and Monday if it is non-urgent.

If you require any further information, please contact Vetlab Supplies Ltd Customer Services on 01798 874567 or email info@vetlabsupplies.co.uk.

Thank you to all our customers and suppliers for their support during these temporary measures.

Stay Safe