Study the use of Cassava Tuber Powder as Replacement of Carbohydrate in the Diet of Genetically Improved Farmed Tilapia

Md. Abdul Halim


The experiment was conducted to determine the use of cassava tuber powder (CTP) as replacement of carbohydrate in pelleted feeds on the growth, survivability, and production of genetically improved farmed tilapia (GIFT) (Oreochromis niloticus) for 56 days in 15 recirculatory aquaria in Wet Laboratory at the Department of Aquaculture, Bangladesh Agricultural University, Mymensingh. For the experiment, 600 fingerlings (initial weight of 1.30 ± 0.10 g) were released at the same stocking density (40 fingerlings per aquarium). Five different treatments such as T1, T2, T3, T4, and T5 (control) each with three replications were used. Diets were formulated containing different levels of CTP, T1: 10%, T2: 15%, T3: 20%, T4: 25%, and T5: 0% CTP (control). Feeds were supplied at 6% body weight twice daily. The final weight (g), weight gain (g), percentage weight gain (%), specific growth rate (SGR) (%/day), and average daily weight gain of tilapia varied significantly (P < 0.01). Highest feed conversion ratio (FCR) (2.15 ± 0.09) was found in T5, and the lowest FCR (2.08 ± 0.08) was found in T3. The highest protein efficiency ratio (PER) (1.99 ± 0.012) was found in T2, and the lowest PER (1.54 ± 0.20) was found in T1. The highest survival rate (88.80 ± 0.61) was found in T4, and lowest survival rate (83.91 ± 1.52) was found in T5 (control). The growth performance was found significantly (P < 0.01) higher in T3 followed by T2, T4, T1, and T5. The present research findings suggested that diet formulated by CTP as replacement of carbohydrate might be used to prepare quality feed to enhance the growth, production, and survivability of GIFT (O. niloticus) and to reduce pressure on starch of wheat and rice.

Aus. & NewZe J. Soci Busi. Env. Sus. Vol 5(2), October 2019, P 70-76



Cassava Tuber Powder; Carbohydrate; Genetically Improved Farmed Tilapia; Feed Conversion Ratio; Protein Efficiency Ratio; Growth Performance

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