As already explained, disease prevention on the fish farm is better than cure . All efforts should thus be directed to applying good management practices.
FISH CULTURE AND REARING METHODS
Composite Fish Culture. Maximum exploitation of the aquatic resources through the introduction of selected varieties of compatible fish to achieve high productivity is called composite fish culture or polyculture.Cage Culture.Integrated Fish Culture.Lacustrine Fisheries.Sewage Fisheries.
What is RAS in fish farming?
Recirculatory Aquaculture System (RAS) is a technology where water is recycled and reused after mechanical and biological filtration and removal of suspended matter and metabolites. This method is used for high- density culture of various species of fish, utilizing minimum land area and water.These are the components of RAS
RAS systems recycle 97-99 percent of their water and create virtually no discharge to natural water bodies, either marine or fresh water.