عنوان مقاله [English]
نویسندگان [English]چکیده [English]
This study surveys on the effects of L-lysine and methionon amino acids on growth performance, survival rate and body composition of Rainbow trout (Oncorhynchus mykiss). Fish with initial average weight 105.23 + 6.33 g in 5 treatments fed with different levels of Lysine (1 and 3 %) and methionine ( 1 and 2%) for 8 weeks. The results showed that the treatment which fed 2 % methionine had the best growth performance, the most amount of protein observed in the carcase of the fish which fed L-Lysine and he most lipid content observed in treatment which fed 2 % methionin too.