Fig. 4.

Maternal behavior of dams of control (C) and selected (S1, S2) lines. Top: % of total observation time spent in contact with the litter when fed a LF (A) or HFS diet (B). Bottom: average time spent to retrieve a pup during the pup-retrieving test (C) and number of “move-aways” (D). A move-away was scored each time the dam was within 1 cm of a displaced pup and then moved away by a distance greater than her body length. LF (open bars) and HFS (black bars). Tukey post hoc test: #P < 0.05, S1 or S2 vs. C; $P < 0.05, S1 vs. S2. Values are expressed as means ± SE.