The disease control programmes in aquaculture
must include examination of diseases and mortalities in holistic manner
and consider various factors such as stocking densities, environment (turbidity,
temperature, pH, salinity, dissolved oxygen of water and redox potential
of soil), rate of water exchange, presence of bottom dwelling algae, the
type of feed and its rate of consumption by the shrimps, phytoplankton
bloom, physiological status of shrimps, etc. Thesse factors considered
together go on long way in management of disease problems. Most of the
disease control methods are based on preventive measures. They are : |