Fig. 4. (A,B) Essential free amino acid (EAA) concentrations (µmol g^-1 wetmass) in shrimps fed diet 1, in (A) tail-muscle and (B) whole-animal tissue before and at various times (h) after feeding. (C,D) EAA concentrations in shrimps fed diet 3 in (C) tail-muscle and (D) whole-animal tissue before and at various times (h) after feeding. Values are means ± S.E.M. at each time interval (N=5). Values with the same letter (across columns) are not significantly different at the P<0.05 level. The tryptophan concentration was 0.1 µmol g^-1 wetmass and is not included in the figure.

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