Table 2.

Effects of essential oils and protease on growth performance of weaned pigs¹.

Item	CON	EO	PRO	EO + PRO	P-value
					EO	PRO	EO × PRO
BW, kg
Initial	6.74 ± 0.11	6.73 ± 0.10	6.74 ± 0.17	6.74 ± 0.25	0.994	0.988	0.953
Wk 1	7.19 ± 0.10	7.22 ± 0.14	7.20 ± 0.15	7.24 ± 0.27	0.845	0.933	0.983
Wk 2	8.82 ± 0.09	8.93 ± 0.20	8.94 ± 0.23	8.89 ± 0.31	0.872	0.859	0.730
ADG, g/d
Wk 1	63.8 ± 10.7	69.9 ± 13.3	74.8 ± 6.7	70.8 ± 4.5	0.825	0.603	0.603
Wk 2	233 ± 11	244 ± 15	247 ± 13	236 ± 8	0.966	0.705	0.476
ADFI, g/d
Wk 1	108 ± 5	110 ± 6	115 ± 4	105 ± 8	0.632	0.774	0.391
Wk 2	365 ± 16	389 ± 20	389 ± 22	348 ± 19	0.655	0.749	0.104
G:F
Wk 1	0.57 ± 0.07	0.62 ± 0.09	0.63 ± 0.07	0.72 ± 0.12	0.462	0.403	0.829
Wk 2	0.65 ± 0.03	0.63 ± 0.03	0.64 ± 0.04	0.69 ± 0.05	0.760	0.418	0.399

CON = pigs fed basal diet; EO = pigs fed basal diet supplemented with 300 mg/kg essential oils; PRO = pigs fed basis diet supplemented with 500 mg/kg protease; EO + PRO = pigs fed basal diet with 300 mg/kg essential oil and 500 mg/kg protease; EO × PRO = interaction between EO and PRO; BW = body weight; ADG = average daily gain; ADFI = average daily feed intake; G:F = gain to feed ratio; Wk = week.

¹Values are means ± SEM (n = 8).