Table 4.

Effects of essential oil supplementation on apparent total tract digestibility of nutrients in weaned piglets on day 28 in the experiment ¹.

Item	CON	AB	EO	SEM	p-Value
Gross energy	0.79 b	0.80 ab	0.81 a	0.001	0.04
Dry matter	0.81	0.81	0.81	0.005	0.65
Crude protein	0.75 b	0.78 a	0.78 a	0.008	0.04

CON = basal diets; AB = basal diets supplemented with 20 mg/kg colistin sulfate and 40 mg/kg zinc bacitracin; EO = basal diets supplemented with 100 mg/kg essential oil blend.¹ Values are means of six observations per treatment, and different superscripts within a row indicate a significant difference (p ≤ 0.05).