Study on growth, survival and intactness of sub-adult to adult mud crab aquaculture under low saline earthen pondsin the coastal areas of Bangladesh

To assess the growth, survival and intactness of mud crabanexperiment was conducted for a period 120 days from July to October 2021 in farmers ponds Betbunia village under Paikgacha upazilla at Khulna Districts, Bangladesh. The crab Juvenile collected adjacent Shibsha River stocked pond 0.01 ha area with stocking density 1 m2,2m2, 3 m2in T1,T2 T3 treatments 2 replications each. Fresh choppedtilapiafish fed feed adjusted periodically accordance growth performance. Production physico-chemical parameters were recorded analyzed according standard methodsduring culture period. Among these salinity has significant (p<0.05) role on crab.After rearing, obtained average final weight 97.8±13.86g, 94.22±9.25gand 117.77±14.34g; estimated yield 371.56 kg/ha, 433.12 kg/ha 376.56 38%, 46% 32% T1, T2 respectively.Results findings present study suggested that poor level cannibalism is potential constraints inthe aquaculturein coastal areas