Coefficient, standard error and significance levels of factors affecting returns from CST.
and grossmargin were significantly higher in the CST farms, followed
by MTTs and traditional ghers. Farmers gained more (P b 0.05) than
double net economic returns from adopting CST compared with MTT,
and four times more than traditional systems (Table 7). Therewas no difference
(P N 0.05) between MTT1 and MTT2 in terms of the various cost
items and returns. ANOVA results are shown in Table 7.
Shrimp farming contributed a high proportion of family income,
accounting for between 61% and 85% of the total when production of
prawn, fish and crabs was included