author(s)
Md. Samsul Alam and Mohammad Nurul Alam

abstract
A study was conducted on development of the giant freshwater prawn Macrobrachium rosenbergii broodstocks in farmed conditions in Bangladesh. The post larvae (PL) were stocked in nine farms at an average density of 13263 Post larvae/hectare and fed with commercial feed until maturity. For complete maturation and spawning, the male and female prawns were stocked at a ratio of 1 male: 3 females in the month of January and fed with the commercial feed supplemented with cod liver oil. Out of the nine farms, brood prawns were successfully developed in three farms with good fecundity. Overall, the fecundity ranged from 8223 to 56853 with a mean of 30201±3026 and showed strong correlation with the size of the prawn. This study concludes that good quality M. rosenbergii broods can be produced in culture ponds by proper stocking, feeding and water quality management.