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Fig. 1. Muscle free amino acid (FAA) concentrations in rainbow trout alevins
subjected to Experiment 1 treatments. (A) Examples of dispensable amino acids
(DAA) in relation to dietary levels. (B) Examples of indispensable amino acids
(IDAA) suggesting limitations in dietary peptide availability. (C) Amino acids
involved in the prolineornithinearginine pathway. Data given as
means ± S.D., two samples of 2 fish each were
assayed per tank, three tanks per treatment (N=3 per group), except
Free AA (N=2). The top graph (specific growth rate) is modified from
Dabrowski et al. (2003). The
lower parts of each figure (bars) show muscle concentrations of individual FAA
(y1 axis title to the left). The upper parts of each
figure (broken lines) indicate the level of each amino acid in the diets (g
100 g1; y2 axis title to the right).
Significant differences between treatments (P<0.05) are indicated
by differing letters. Figures with no letters next to the bars indicate
non-significant one-way ANOVAs.