Fig. 5. Distribution of protein content (mg protein ind^–1) in whole embryos (embryonic body plus yolk sac; A), and in the embryonic body and yolk fractions (B) of chorionated (chorion intact) and dechorionated (egg case removed) rainbow trout 3 days before hatch to 3 days after hatch. (C) The values for the embryonic body shown in B but on a different scale, in order to highlight the differences in protein content (mg protein ind^–1) between chorionated and dechorionated embryos. Embryos were dechorionated 3 days before hatching (–3 days). Negative numbers indicate days before hatch, time 0 indicates when hatching started and positive numbers indicate days post-hatch. Values are expressed as means ± s.e.m. (N=8). *Significant difference from chorionated value (P<0.05).