The effect of alfalfa (Medicago sativa) alcoholic extract on growth performance, feed intake, body composition and blood biochemical parameters of rainbow trout (Oncorhynchus mykiss)

This study was conducted to evaluate the effects of alfalfa (Medicago sativa) extract on growth performance, feed intake, body composition and some of the serum parameters of Rainbow trout (Oncorhynchus mykiss). In this study, a total of 240 rainbow trout were weighted average 8/36±0.2(g) and randomly distributed in four treatments (control), 0.5, 1, 1.5% of extract per (kg) of diet with three replications in plastic tanks. Fish were placed and fed with extract containing food for 60 days. During this time, physicochemical factors of water were measured. At the end of the period, growth index and serum parameters calculated. The results showed that growth performance in treatments that fed with 1% alfalfa extract had a significant difference compared to control treatment (p