Author/Authors :
Akbari، Mohammad نويسنده , , Zakipour، Eshagh نويسنده Dept. of Fisheries, Faculty of Natural Resources, Universityof Zabol, IR Iran , , Sourinejad، Iman نويسنده Dept. of Fisheries, Faculty of Marineand Atmospheric Sciences and Technologies, , , Azimi Rad، Mahmood نويسنده Dept. of Fisheries, Faculty of Natural Resources, University of Tehran, IR Iran. , , Efatpanah، Eiraj نويسنده Head of Yosefpours FishBreeding and Culture Center, Guilan Province, IR Iran ,
Abstract :
Growth performance, food efficiency and body composition of pikeperch (Sander lucioperca) were
investigated with 1 or 2 g/kg L-carnitine added to the diet. Control diet did not contain L-carnitine. Two
hundred pikeperch fingerlings (1.63 g, mean weight) were stocked in each 1 m3 concrete tank and fed
equally 6 meals per day for 6 weeks.Higher increment in body weight (5.92 ± 0.37 g), the highest specific
growth rate (3.75 ± 0.17) and food efficiency (98.04 ± 4.56), the highest crude protein (64.53 ± 0.84), the
lowest crude lipid (21.59 ± 0.23) and significant (P < 0.05) lowering in food conversion ratio (1.02 ± 0.05)
were obtained with 2 g/kg L-carnitine diet. The greatest survival rate (84.88 ± 0.92) occurred when
fingerlings were fed with 1 g/kg L-carnitine. Both treatments with L-carnitine showed lesser rate of
cannibalism than in control (1.25± 0.09). Use of dietary L-carnitine improved growth performance and
body composition of pikeperch fingerlings.
