A positive correlation coefficient
indicates that an increase in the corresponding variable will increase the
risk of WSSV incidence. On the contrary, a negative correlation
coefficient implies that an increase in the level of that variable will
reduce the risk of WSSV occurrence. Factors correlated (Pb0.1) with
WSSV incidence using the entire dataset were high MPR, presence of
adjacent farms, sharing of water source with other farms, having the
same receiving and water source, water change dependent on tide
(tidal), sludge removal, stocking density, and feeding the shrimp with
live molluscs and planktons. High MPR, presence of adjacent farms,
sharing of water source with other farms, having the same receiving and
water source, pond size, stocking density, and feeding with live molluscs
and planktons were correlated to WSSV incidence in monoculture
farms. Climate, sludge removal, pond flushing, lime application, fry
analysis, and feeding commercial pellets, or molluscs and planktons to
the shrimp were correlated to WSSV in polyculture farms.