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Fig. 4. Milk energy output (MEO) of shaved (filled circles; N=20) and
unshaved control (open circles; N=20) mice plotted against maternal
body mass (A), litter size (B) and litter growth (C). Maternal body mass
refers to day 15 of lactation. Litter growth is defined as the difference
between litter mass on day 18 and day 6 of lactation. Only the correlation
between MEO and litter growth is significant (for statistical details, see
Results). The fitted line represents reduced major axis regression for the
pooled data (N=40), described by y=58.9+2.4x.