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The ratio of phosphorylation to total mTOR signal pathway factors in PA cells of dairy calves cultured at 120 min in the presence of 0–0.45 mM L-phenylalanine. (A) The immunoblots of phosphorylation forms and total of mTOR, S6K, 4EBP1. (B–D) The ratio of the phosphorylation to total mTOR, S6K, and 4EBP1, respectively. Error bar represents SEM, n = 3. Means followed by same or no letter did not differ (P > 0.05).
