نوع مقاله : مقاله پژوهشی
1 گروه شیلات، دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان. اصفهان، ایران.
2 گروه شیلات، دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان، اصفهان، ایران.
3 گروه صنایع غذایی، دانشگاه صنعتی اصفهان، اصفهان، ایران.
عنوان مقاله [English]
This study was carried out to investigate the effect of pistachio green hull extract (PGHE) on growth, survival and body composition of rainbow trout. The experiment was performed in a completely randomized design with five treatments and three replications (14 fish in each replicates). Fish with 18.06±0.93 g initial weight, were fed with the diets (3% of biomass per day) for 8 weeks. The diets contained 0, 0.5, 1.5, 4.5 and 9 g PGHE/Kg were made. The total phenolic content of PGHE were 21.52 mg gallic acid/ gr dry matter. Results did not show any significant differences (P>0.05) in SGR (Specific Growth Rate), FCR (Feed Conversion Ratio), survival, hepatosomatic index and body composition (moisture, protein, lipid, ash) among the different treatments. The maximum condition factor (1.24±0.02) was observed in fish treated with 1.5 g PGHE/Kg in the diet, being significantly different from control group (p<0.05). The results showed that using different level of pistachio hull ethanolic extract had no negative impact on growth factors, survival and body composition of fish.