Use of artificial substrate in pond culture of freshwater prawn (Macrobrachium rosenbergii): a new approach regarding growth performance and economic return

摘要: An experiment was conducted for six months to evaluate the effects of artificial substrates on survival, growth and production Macrobrachium rosenbergii juveniles. The treatment T 1 contained locally available bamboo-made substrate both vertical horizontal 2 received no substrate. Juvenile prawns (0.40±0.13 g) were stocked at rate 19,760 ha -1 . water quality parameters range such as temperature, pH DO 22.06-33.45°C, 7.70-8.40 4.75-6.15 mgl respectively which significant difference ( P 0.05) than (56.87%). specific rate, food conversion ratio protein efficiency 1.19 % and  1.14 %, 3.15 4.39, 0.98 0.71 in not significantly different Thus survival prawn juveniles improved presence could be economically viable technique freshwater culture.