. 2022 Jul 29;101(11):102087. doi: 10.1016/j.psj.2022.102087

Table 2.

Effects of dietary EO supplementation on growth performance of yellow-feather broilers.

						P-value
Items	CON	EO200	EO400	EO600	SEM	Treatment	Linear	Quadratic
D 1–2,139
IBW	38.65	38.39	38.49	38.90	0.091	0.167	0.252	0.053
ADFI, g/d	31.81^b	33.80^a	34.34^a	34.47^a	0.28	<0.001	<0.001	0.005
ADG, g/d	21.77^b	23.57^a	24.00^a	23.79^a	0.24	<0.001	<0.001	0.002
BW, g	496.09 ± 14.54^b	533.35±17.08^a	538.52±12.42^a	539.36 ± 7.55a	5.09	<0.001	<0.001	0.002
FCR	1.46	1.44	1.43	1.45	0.01	0.439	0.542	0.145
D 22–42
ADFI, g/d	96.67^ab	93.78^c	98.51^a	94.63^bc	0.58	0.009	0.723	0.582
ADG, g/d	49.07^b	50.25^b	52.22^a	49.68^b	0.37	0.011	0.149	0.005
BW, g	1,535.13 ± 30.21^b	1,577.88 ± 38.37^a	1,614.99 ± 34.62^a	1,585.84 ± 22.26^a	10.77	0.001	0.002	0.009
FCR	1.97^a	1.87^b	1.89^b	1.91^b	0.01	0.005	0.042	0.004
D 43–48
ADFI, g/d	148.87^a	141.51^b	145.18^ab	141.74^b	1.18	0.019	0.019	0.4
ADG, g/d	58.52	58.34	57.85	57.20	0.40	0.69	0.246	0.785
FBW, g	1,878.17 ± 22.55^c	1,925.92 ± 37^b	1,972.36 ± 24.08^a	1,926.17 ± 33.13^b	9.16	0.001	0.004	0.002
FCR	2.55	2.43	2.51	2.46	0.02	0.105	0.262	0.309
D 1–48
ADFI, g/d	75.94	73.72	75.37	74.35	0.37	0.139	0.327	0.403
ADG, g/d	38.44^b	39.53^a	39.97^a	39.31^ab	0.19	0.017	0.041	0.013
FCR	1.98^a	1.87^b	1.89^b	1.89^b	0.01	<0.001	<0.001	<0.001

Abbreviations: ADFI, average daily feed intake; ADG, average daily gain; BW, body weight; FBW, final body weight; FCR, feed conversion ratio; IBW, initial body weight.

CON, basic diet; EO200, basic diet contain 200 mg/kg essential oils; EO400, basic diet contain 400 mg/kg essential oils; EO600, basic diet contain 600 mg/kg essential oils.

^a,b,c

Mean value within a role with no common superscript differ significantly in the treatment (P < 0.05).