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    Effect of Stocking Densities on Growth and Production Performance of Bheda (Nandus nandus) in Pond Aquaculture
    (2023) Haque, Prof. Dr. Md. Rezoanul; Das, David Rintu; Sarkar, Roman; Begum, Nasima; Pandit, Debasish; Jaman, Asma
    The current study's goal was to look at how stocking densities affected Bheda (Nandus nandus) growth and production over the course of a 120-day period. Three treatments were T 1 (20,000 fish ha -1 ), T 2 (30,000 fish ha -1 ), and T 3 (40,000 fish ha -1 ), each with three replicates. Those fishes were fed daily with commercial sinking feed and a live food mixture at 9-3% fish body weight up to harvest- ing. Temperature, dissolved oxygen, pH, and other water quality indicators were measured every two weeks, along with the growth performance of Bheda fish. T2 had the highest yield of Bheda (3439.08±207.31 kg ha -1 ), followed by T 3 (3422.78±224.42 kg ha -1 ), and T1 (3136.62±150.00 kg ha-1 ). The harvesting weight (g), individual weight gain (g), individual percent (%) weight gain (g), SGR (% per day), and survival rate (%) of fish were significantly higher (p<0.05) in T1 , followed by T2 and T3 , respectively, where combined production of fishes was significantly higher at T2 followed by T3 and T 1 . Net profit and benefit-cost ratio were significantly higher in T1 than T2 and T3 . Based on the re- sults of this experiment, it can be concluded that stocking density of Bheda fingerlings at the rate of 20,000 fish ha -1 in T 1 showed the highest production performance for profitable pond aquacul- ture. However, further research on the standardisation of stocking density with economic profitabil- ity of this fish at the on-station or on-farm level in ponds may be required before widespread dis- semination of this culture technology to farmers, particularly in Bangladesh and elsewhere.