Amino Acid Metabolism in Gilthead Seabream Is Affected by the Dietary Protein to Energy Ratios

Figure 3

Proportion (%) of the total recovered ¹⁴C-protein (protein), ¹⁴C-lysine (Lys), and ¹⁴C-methionine (Met) that were retained in the Free (A) and Bound (B) fractions of muscle in gilthead seabream juveniles fed LowP/E or HighP/E diets. Values are presented as mean ± standard deviation ( fish for each diet and tracer). (A, B) Significant differences in the metabolic fate of the distinct amino acids at each dietary treatment;denotes significant differences between dietary treatments (). Absence of letters denotes no significant differences.

(a) Free fraction

(b) Protein-bound fraction