Table 1.

Parental handling and weight change statistics.

		Acute observations	Weight
Sex	Group	Parental handling	Weight change
Males	Control	446.0 ± 47.7	25.3 ± 1.0
	Low	408.8 ± 82.8	29.1 ± 1.5
	Medium	528.4 ± 98.7	27.0 ± 1.7
	High	434.4 ± 84.3	24.9 ± 1.1
Females	Control	423.5 ± 37.6	19.5 ± 0.8
	Low	425.2 ± 48.7	21.0 ± 1.2
	Medium	373.5 ± 52.0	19.9 ± 1.7
	High	290.5 ± 56.0	20.6 ± 1.8

Values represent empirical means ± SEM. Parental handling represents the total amount of parental contact received (e.g., licking, nursing) across two individual observations periods (seconds). Weight change represents the weight gain from day 1 of treatment to sacrifice (grams).