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Fig. 4. Embryonic body dry mass (mg) in chorionated (chorion intact) and
dechorionated (chorion removed) rainbow trout embryos 6 days before hatch to 3
days after hatch. Embryos were dechorionated 6 days before hatching (6
days). Embryonic body dry mass is the dry mass of the embryo only, separated
from the yolk. Negative numbers indicate days before hatch, time 0 indicates
when hatching started and positive numbers indicate days post-hatch. Values
are means ± s.e.m. (N=8, with each value consisting of a
pooled dry mass of 5 embryos). *Significantly different from chorionated
values (P<0.05).