Finding the suitable catfish species for cage aquaculture in a freshwater swamp | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 74, Volume 26, Issue 6, November and December 2022, Page 1285-1299 PDF (524.02 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejabf.2022.281969 | ||||
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| Author | ||||
| Mrityunjoy Kunda et al. | ||||
| Abstract | ||||
| The experiment was carried out for 94 days in the renowned Ratargul Freshwater Swamp Forest of Bangladesh in order to assess the production performance and economics among three locally high-demand catfish species with a view to selecting suitable species for cage culture. Magur (Clarias batrachus), pabda (Ompok pabda) and pangas (Pangasianodon hypophthalmus) were stocked in Treatment-1 (T1), Treatment-2 (T2) and Treatment-3 (T3), respectively at stocking densities of 40 fish/m3, 60 fish/m3 and 40 fish/m3, respectively with three replications each. The mean initial weights of fish were 25.35±0.55 g in T1, 15.45±0.30 g in T2, and 18.16±0.55 g in T3. Fishes were supplied with commercial floating starter feed at the rates of 10-5% live body weight of fish for the first month, and grow-out feed at the rate of 4% body weight from the second month to till the end of the experiment. Species were sampled monthly. Results show that the average individual harvesting weight of fish was 141.93±9.86 g in T1, 53.22±3.07 g in T2 and 363.75±12.09 g in T3 at the end of the experiment which was significantly different among the treatments. Total yield was found significantly higher in pangas (13.20±0.69 kg/m3) than magur (3.71±0.14 kg/m3) and pabda (2.86±0.27 kg/m3). Though there were no significant differences among the benefit-cost ratios for all the treatments, the highest was accounted for T3 (1.25±0.08), followed by T1 (1.22±0.05) and T2 (1.19±0.11). The findings of the present experiment suggest that pangas could be a suitable species followed by magur and pabda for cage farming in freshwater swamps. | ||||
| Keywords | ||||
| Cage culture; Ratargul Swamp Forest; Production performance; Profitability | ||||
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