Evaluation of different dietary energy levels on some growth performance, survival and body composition of narrow clawed crayfish (Astacus leptodactylus)
Subject Areas : New Technologies in Aquaculture Development
Keywords: Growth indices, Diet, energy level, Astacus leptodacthylus, Keywords: Narrow clawed crayfish,
Abstract :
Abstract In this study, three practical diets containing three levels of digestible energy 300, 370 and 450 Kcal/100g and 30% crude protein for rearing of Astacus leptodactylus was prepared. Effects of these diets were determined on growth index, survival and body composition. In this experiment, it used three treatments each had three repetitions. The crayfish rearing was done for 60 days in 9 fiberglass tank with 110-liters capacity. Average of initial weight of the crayfish was 17±2.3g. Results indicate the highest SGR, PER, NPU, WG. Survival and protein of body composition occurred in the diet with 370 kcal/100 g energy which has no significant difference.
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