A study on ground reality of freshwater fish farming in biofloc tank in West Bengal, India
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Authors
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Prasenjit Mali
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Swagat Ghosh
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Gadadhar Dash
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T. Jawahar
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Supratim Chowdhury
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Sudhir Kumar Das
Abstract
Introduction of land-based biofloc technology has brought huge changes in concept of fish farming. The practice of biofloc farming is gaining popularity amidst COVID-19 situation. For the present study on biofloc tank farming in West Bengal, 110 biofloc farmers who had harvested at least one crop, were selected through simple random sampling method, from a list of 390 biofloc farmers from 13 districts of West Bengal. Data were collected from the selected respondents during the last quarter of 2020, according to a structured interview schedule on every minute aspect on culture strategies, technical issues, profit gain and prospect. Oreochromis niloticus was found to be the most cultured species followed by Anabas cobojius, Catfishes Heteropneustes fossilis and Clarias batrachus, Pangasianodon hypophthalmus and Labeo bata. Majorities of the respondents were found young, educated, least experienced and small scale investors. Disease outbreaks and mass mortalities were found very common to all. Disease prevention strategies and therapeutic measurements were found quite unsatisfactory. Most respondents failed to achieve their expected profit. Only 13.6% farmers were found to be highly satisfied, whereas, 62.7% were dissatisfied but continue the culture and 23.7% were highly disappointed. Synchronizing C:N ratio with microbial dynamics by the famers was found to be the major gap in technical knowhow.Â
Key words Biofloc culture, Freshwater fish, West Bengal
References
1. Ahmad, I., Babitha Rani, A. M., Verma, A. K. and Maqsood, M.
2. Biofloc technology: An emerging avenue in aquatic
3. animal healthcare and nutrition. Aquaculture
4. International, 25: 1215–1226. DOI 10.1007/s10499-
5. -0108-8
6. Avnimelech, Y. 2006. Bio-filters: The need for a new
7. comprehensive approach. Aquaculture Engineering, 34:
8. –178.
9. Avnimelech, Y. 2009. Biofloc technology - a practical guide
10. book. The World Aquaculture Society, Baton Rouge,
11. Louisiana, United States. 182 p.
12. Azim, M. E. and Little, D. C. 2008. The biofloc technology
13. (BFT) in indoor tanks: Water quality, biofloc
14. composition, and growth and welfare of Nile tilapia
15. (Oreochromis niloticus). Aquaculture, 283: 29-35.
16. doi:10.1016/j.aquaculture.2008.06.036
17. de Oliveira, E. G., Pinheiro, A. B., de Oliveira, V. Q., da Silva, A.
18. R. M., de Moraes, M. G., Rocha, I. R. C. B., de Sousa, R.
19. R. and Costa, F. H. F. 2012. Effects of stocking density
20. on the performance of juvenile pirarucu (Arapaima
21. gigas) in cages. Aquaculture, 370–371: 96–101.
22. Ekasari. J., Rivandi, D. R., Firdausi, A. P., Surawidjaja, E. H,
23. Zairin Jr, M., Bossier, P. and De Schryver, P. 2015.
24. Biofloc technology positively affects Nile tilapia
25. (Oreochromis niloticus) larvae performance.
26. Aquaculture, 441: 72-77. https://doi.org/10.1111/
27. are.12784
28. M’balaka, M., Kassam, D. and Rusuwa, B. 2012. The effect of
29. stocking density on the growth and survival of improved
30. and unimproved strains of Oreochromis shiranus.
31. Egyptian Journal of Aquatic Research, 38: 205–211.
32. Zaki, M. A. A., Alabssawy, A. N., Nour, A. E. M., El Basuini, M.
33. F., Dawoode, M. A. O., Alkahtani, S. and Abdel-Daim,
34. M. M. 2020. The impact of stocking density and dietary
35. carbon sources on the growth, oxidative status and stress
36. markers of Nile tilapia (Oreochromis niloticus) reared
37. under biofloc conditions. Aquaculture Reports, 16:
38. https://doi.org/10.1016/j.aqrep.2020.100282
39. Randall, D. and Tsui, T. K. 2002. Ammonia toxicity in fish.
40. Marine Pollution Bulletin, 45: 17–23.
41. Wang, C., Pan, L., Zhang, K., Xu, W., Zhao, D. and Mei, L.
42. Effects of different carbon sources addition on
43. nutrition composition and extracellular enzymes
44. activity of bioflocs, and digestive enzymes activity and
45. growth performance of Litopenaeus vannamei in zero
46. exchange culture tanks. Aquaculture Research, 47:
47. –3318.
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