روند رشد ميگوي ببري سبز (Penaeus semisulcatus) در استخرهاي پرورش ميگوي سايت حله استان بوشهر

Growth model of Penaeus semisulcatus in a semi-intensive culture in Boushehr Heleh site

This experiment was conducted to determine the growth model of Penaeus semisulcatus shrimp and effect of important physicochemical parameters of water on the growth of this shrimp during 109 days. Shrimps reared in three 0.4 ha ponds with density of 25 post larva per meter square in the shrimp research center Heleh Boushehr in summer, 2002. Biological and non-biological parameters recorded during farming period were total length and weight, water temperature, pH, transparency, depth, dissolved oxygen and salinity. There is a correlation between non-biological independent variables and dependent variable (specific growth ratio). According to multi regression (Backward) method, decreasing transparency, increasing depth, decreasing salinity and constancy water pH had the highest effect (r=%99) on Penaeus semisulcatus growth. The mean harvest rate, mean weight and feed conversion ratio in three Penaeus semisulcatus ponds were 903.33kg per 0.4ha, 12.22gr and 1.33, respectively.