Table 4.

Effects of dietary treatments on pig performance in the newly weaned pig experiment (Least-square mean values ± SEM)

	Treatment1				SEM	Time, d			SEM	Treatment effect	Time effect	Treatment × Time effect
	Control	ZnO	Low ANE	High ANE		7	14	21
Final BW, kg	15.0b	16.2a	14.5b	15.2b	0.31	9.0C	11.3B	15.2A	0.16	< 0.001	< 0.001	0.432
ADG, kg/d	0.29b	0.37a	0.29b	0.32b	0.016	0.09C	0.32B	0.54A	0.014	0.001	< 0.001	0.644
ADFI, kg/d	0.50b	0.56a	0.50b	0.51b	0.015	0.20C	0.55B	0.80A	0.013	0.003	< 0.001	0.166
G:F ratio	0.51b	0.62a	0.51b	0.61a	0.034	0.43C	0.59B	0.68A	0.029	0.017	< 0.001	0.186

ANE, Ascophyllum nodosum extract; ZnO, Zinc oxide; BW, Body weight; ADG, Average daily gain; ADFI, Average daily feed intake; G:F; Gain to feed ratio

^A,B,CMean values within a row with different superscript capital letter indicate significant differences between days (P < 0.05)

¹A total of 12 replicates were used per dietary treatment (replicate = pen)