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Fig. 6. Litter mass (A) and pup body mass (B) as a function of asymptotic food
intake for mice at 30°C raising 6-15 pups (filled circles; N=61).
Data for mice raising 1-5 pups are also shown (open circles; N=6).
Litter mass and pup body mass refer to day 14 of lactation. Pup body mass is
the litter mass divided by litter size. Asymptotic food intake is the mean
value for days 9-13 of lactation. The relationships are described by
y=4.58+4.33x (A) and y=1.25+0.36x (B).