Biofloc Technology (BFT) for farming of fish in land locked areas

Madhu, Rema and Madhu, K and Bhaskaran, Binoy and Abhilash, K S and George, Veena and Ali, Liyakhath and Mohan, Mrudhula and Harikrishna, N H (2025) Biofloc Technology (BFT) for farming of fish in land locked areas. In: Training programme on Cage, Pen, Ornamental fish, Biofloc, Mussel and Oyster culture for Tribal Department officials, Scheduled Tribes (STS) Promoters and Farmers. CMFRI Training Manual Series No. 47/2025 . ICAR- Central Marine Fisheries Research Institute, Kochi, pp. 26-30.

Text CMFRI Training manual Series No 47_2025_CH 5_Rema Madhu.pdf Download (2MB)

Abstract

Biofloc technology (BFT) is an innovative aquaculture system that focuses on maintaining a healthy and sustainable aquatic environment for the production of food fishes in captivity. The basic principle of BFT is the retention of waste (such as uneaten feed, feces, and other organic matter) and its conversion into natural food called biofloc which consist of a mixture of suspended organic matter, microorganisms, and small particles, through the activity of microbes, particularly bacteria, algae, and other microorganisms within the culture system. This is done by beneficial bacteria under constant aeration and addition carbon sources. The organic matter undergo aerobic decomposition and maintain high levels of microbial floc in suspension in biofloc tank or fertilized ponds (Avnimelech et al.,1986, Avnimelech1999, 2007).

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