Spring Viremia of Carp (SVC)
Type:
Viral
>> caused by the SVC virus usually at low temperatures (40-65
deg F)
>>
Rhabdovirus carpio is the scientific name of the virus
>>
this virus suppresses the immune system of the fish, making
the fish vulnerable to secondary pathogenic invasions
>>
easily spreads from fish to fish
Symptoms:
>> lethargy and uncoordinated movement
>> bulging eyes, skin hemorrhages
>> bloated appearance due to fluids in the abdomen
>> bloody mucus trailing from vent and within the intestine
>> may also exhibit tiny hemorrhages of the muscle, swim bladder,
and gut cavity lining
Remedies:
>> SVC infections are of international concern so deaths from
this disease must be reported accordingly
>>
SVC has no known cure, but many experts believe that the
chances of a fish surviving its attack is greatly increased by
keeping under control all parasitic and bacterial infections
that may occur concurrently with the SVC
>>
studies have shown the SVC virus not being able to survive
above 83 deg F, so experts recommend raising the water
temperature to 86 deg F for 5-7 days before treating the sick
koi
>>
the water temperature may then be gradually decreased by a
maximum of 2 deg F per day until it is down to 80 deg F, at
which point treatment of the secondary infections of the koi
may be initiated and sustained until all symptoms are
eradicated |