Length Weight Relationship and Condition Factor of Giant Freshwater Prawn Macrobrachium rosenbergii (De Man, 1879) Based on Developmental Stages, Culture Stages and Sex

Length-weight relationship and condition factor of Macrobrachium rosenbergii (De Man, 1879) were investigated for different culture phases, developmental stages and sexes in the present study. Regression lines differed among the culture phases, developmental stages as well as between sexes. Significant difference in the slope was observed among different culture phases with nursery animals showing significantly lower slope. The most significant variation in the slope was observed among different developmental stages. Sex wise comparison also exhibit highly significant variation between male and female. Therefore, separate interconversional equations were derived for different culture phases, developmental stages and sexes to simplify management during culture. Additionally, condition factor was also found to be varying significantly between different culture phases, developmental stages and between sexes.