Disinfection is the process,
which involves the elimination of most pathogenic microorganisms (excluding
bacterial spores) on inanimate objects. Chemicals used in disinfection are
called disinfectants. Different disinfectants have different target ranges, not
all disinfectants can kill all microorganisms. The act of disinfecting using
specialized cleansing techniques that destroy or prevent growth of organisms
capable of infection.
Thebasic goal in disinfection is interruption of the infection transmission mechanism by disinfecting various objects (water, food products, objectsof everyday use, and the like).
Disinfect method of fish
There are
three basic techniques for treating fish. They are as follows:
1. Adding
drugs to the water (Water-borne drugs): Drugs may be added to the water in
three different ways-
a. Dip
method: In this technique, a concentrated chemical solution is made up in tank.
Fishes or eggs are placed in hand net or trays and dipped into solution for few
seconds. This method is used for disinfection of raceways and aquaria for
control of the disease.
b. Bath
method: The most common method of administrations therapeutic agents to fish is
bathing in water-soluble compounds. This may carried out in ponds or tanks.
Where the water is static during treatment and the fish are left in solution
for certain period. Fish suffer from many external diseases (parasitic, fungal
and bacterial) can be treated by this method. There are three types from bath
treatments. The difference between these bath treatments is the concentration
of the chemical applied and the period of time that the fish are in contract
with chemical.
i. Dip bath: The fish is
dipped into a concentrated chemical bath for a short period of time, often less
than one minute. Prolonged exposure to the chemical at the high concentration
delivered in a dip would be fatal to the fish. Because of fatalities can easily
result from an improperly administered dip treatment, and because diseased >>DOWNLOAD FULL<<
