The effect of different dietary ratios of arginine, methionine, and lysine on the performance, carcass traits, and immune status of turkeys

The research hypothesis postulated that weight (BW) of turkeys (P = 0.001). Different dietary the optimal dietary inclusion levels and ratios of lysine Arg levels had no influence on the growth performance of (Lys), arginine (Arg), and methionine (Met) can increase turkeys, but the lowest level decreased dressing yield the growth potential of hybrid turkeys and limit meta- (P = 0.001), and the highest level increased the perbolic disorders that weaken immune function. The centage of breast muscles in the final BW of turkeys experiment was carried out in a full rearing cycle, from 1 (P = 0.003). The lowest Arg level (90% of Lys content) to 16 wk of age, in a two-factorial randomized design with undesirably increased the concentration of the proin-3 levels of Arg and 2 levels of Met (90, 100 and 110% of flammatory cytokine IL-6 (P = 0.028) and decreased Arg, and 30 or 45% of Met, relative to the content of globulin concentration (P = 0.001) in the blood plasma dietary Lys), with 6 groups of 8 replicates per group and of turkeys. The higher dietary Met level (45% of Lys 18 turkeys per replicate. In the first and second month of content) increased plasma albumin concentration rearing, a significant dietary Arg-by-Met interaction was (P = 0.016). It can be concluded that higher dietary noted for daily feed intake and body weight gain, and a levels of Met (45 vs. 30% of Lys content) and Arg (100 more beneficial effect was exerted by higher Met content and 110 vs. 90% of Lys content) have a more beneficial and medium Arg content. Throughout the experiment, effect on the growth performance and immune status of the higher dietary Met level increased the final body turkeys.