Effect Of Protein Levels On Growth Performance And Survival Rate Of Mono Sex Nile Tilapia Under Biofloc System
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Abstract
The current study was conducted to evaluate the "effect of protein levels on growth performance and survival rate of monosex Nile Tilapia under biofloc system". This study was done to assess the optimum level of biofloc meal inclusion in the diet of mono-sex Nile tilapia. The experiment was conducted over a period of 60 days. Growth sampling was done at every fortnight with all the stocked animals from each tank by taking total length and body weight. For this t experiment, four isonitrogenous and isoenergetic experimental dietswere formulated viz., C, T1, T2 and T3. A control diet (C), without biofloc was comparedagainst three prepared diets formulated with different level of biofloc at 15% (T1), 30% (T2) and45% (T3) by manipulating fish meal and soybean meal levels. Commercial diet (T4) was also used to compare the experimental diets. The growth performance such as of feed conversion ratio (FCR), feed efficiency ratio (FER), protein efficiency ratio (PER), specific growth rate (SGR), average weight gain and survival were assessed and statistically analysed.The results showed that among the biofloc meal-containing meals, T1 (15% Biofloc) produced the best results in terms of average body weight growth, FCR, SGR, PER, and FER.
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