Table 8.

Sample size calculations¹

Variable	Group size	SD2	Effect size	Sample size (n/trt)
ADG, kg	31 Pigs/pen	0.036	0.05	9
	11 Pigs/pen	0.032	0.05	7
ADFI, kg	31 Pigs/pen	0.042	0.07	6
	11 Pigs/pen	0.032	0.07	4
G:F	31 Pigs/pen	0.036	0.05	9
	11 Pigs/pen	0.038	0.05	10

¹ α = 0.05; power = 0.80.

²Estimates of SD associated with each group size (31 or 11 pigs/pen) obtained from current experiment (days 0–41 data was used).