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Fig. 2. Changes of litter mass gain during the course of 15-day lactation exposed
to 23°C and 5°C. Values are means ± s.e.m. (N=8). The
litter in the cold decreased mass gain from days 12 to 15, compared to that in
the warm, which showed a relative constant mass gain. Different letters (a or
b) above hatched bars indicate significant differences (P<0.05) in
measurements within the warm group during the course of acclimation, and
different letters (A, B, C) above solid bars indicate significant differences
(P<0.05) within the cold-exposed group.
***P<0.001.