Only one factor related to culture method was associated to WSSV
infection: stocking density was a WSSV risk factor in monoculture
farms. The higher the stocking density the greater the odd of an
infection. Stocking density has a negative unstandardized coefficient
which implies that an increase in stocking density will reduce risk of
WSSV. However, stocking density is negatively correlated with WSSV;
thus, an increase in stocking density will increase the risk of WSSV.