در عادت پذيري برغذاي كنسانتره در حوضچه ها فايبر گلاس )Huso huso Linnaeus 8571( اثر وزن اوليه فيل ماهيان جوان

Effect of initial body weight of beluga (Huso huso Linnaeus, 1758) juveniles on adapting to concentrated feed, reared in fiberglassʹs basins

The beluga juveniles with 5.10,1 5,20,25 and 30 grams initial body weight in 6 treatments each one with three replications (N 150 fishes) were reared. 1 he fishes transferred in 18, 2*2 m fiberglassʹs basins fed with concentrated feed set in a completely randomized design. The total body weight and length measured and the mortality in each basin counted and then the length and weight coefficient variation of fishes were calculated after 45 days experiment period. The mean of each parameter compared with Duncanʹs test. The results indicated that the fishes with 20 grams and more in initial body weight adapted better than the fishes with lower than 20 grams. Likewise the fishes with 20 grams and more initial body weight adapted to concentrated feed without any mortality.