Aquaculture Salt is one of the most commonly used drugs in aquaculture. In fact, it is sometimes referred to as the aspirin of aquaculture (Many forms of salt including edible salt, meat-curing,pickling, and rock salt). Of these, the most commonly used and least expensive form is the meat curing variety. When used properly, salt can treat many external parasites including Costia, Epistylis,Trichodina, Chilodonella, and the flukes Dactylogyrus and Gyrodactylus. Salt use to relieve stress during handling and transport.
A few general guidelines suggested before any salt treatment attempted:
- Use sensitive and accurate scales to calculate doses for treatment of small volumes of water contained in hauling or holding tanks. “Guesstimating”may only end in disaster
- Know the volume of your ponds, airways, tanks, etc.,beforehand. It is advisable to have those values in a convenient location for immediate use
- Perform a test treatment on a few fish before attempting a large-scale treatment. Salt, like other chemicals, reacts differently among different species and water qualities
- Prepare to remove fish or flush out salt baths with fresh water when fish show initial signs of stress.
Treatment procedures involve calculating the volume of water, salt dosage and choosing the treatment method.In the case of a specific disease, the corresponding rate of salt for applications needs to recalculated.
Use and Application of aquaculture salt:
The method of salt application depends on the disease organism, fish species, weight, and type of aquaculture unit. Treatment methods include short-term dips, prolonged baths, and indefinite treatments.
- Dip treatments involve exposing the fish to very strong solutions for short periods of time, usually 30seconds to one minute.
- Prolonged baths are useful for heating fish in small tanks . Strong solutions of salt added to the water. Fishes held in this salt solution with aeration from 30 to 60 minutes, or until they show signs of stress
Indefinite treatments used when transporting, handling fish, or when dealing with large volumes of water, such as ponds. Low concentrations of salt used indefinitely in ponds.
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