1Tamil Nadu Jayalalithaa Fisheries University, M.G.R Fisheries College and Research Institute, Ponneri-60 1204, Tamil Nadu, India
2ICAR-Krishi Vigyan Kendra, Tamil Nadu Jayalalithaa Fisheries University, Sikkal-611 108, Tamil Nadu, India
*Corresponding Author: P. Yuvarajan, Tamil Nadu Jayalalithaa Fisheries University, M.G.R Fisheries College and Research Institute, Ponneri-60 1204, Tamil Nadu, India. Email: yuvarajandono@gmail.com
Online published on 17 March, 2023.
Biofloc technology (BFT) is an ecofriendly aquaculture production system. In this, various carbon sources being used for floc production. However, the cheapest carbon source would make it economically feasible. In this context, the present study used purified distillery spent wash (DSW) as a carbon source to evaluate its viability on biofloc composition and carcass quality of GIFT strain.
Nursery trial was conducted in high density poly ethylene (HDPE) outdoor lined pond (0.01 ha) for period of 30 days (8th January to 7th February 2018). In both BFT and control system, proximate composition and fatty acid profile of GIFT tilapia were analyzed at the end of the trial by following the standard method.
Dried microbial floc encompassed 16.61±1.2% of crude protein and 15.3±0.01% of linoleic acid. The Whole-body composition of GIFT was not significantly (P>0.05) varied in between biofloc and control. Significantly (P<0.05) rich fatty acids found in biofloc fed GIFT whole body except stearic acid, behenic acid and docosahexaenoic acid. In the present study, DSW did not show much effect on carcass quality but showed better growth performance of GIFT strain in the BFT system.
Distillery spent wash, Eicosapentaenoic acid, GIFT tilapia, Low protein diet, Nursery biofloc system, Outdoor lined pond
