. 2022 May 21;101(8):101970. doi: 10.1016/j.psj.2022.101970

Table 2.

Effect of Bacillus species–fermented products and essential oils on growth performance of broilers.

								P value
	C¹	A	SYN	EO	SYN+ EO	SEM	P value	SYN	EO	SYN × EO
Body weight (g/bird)
1 d	46.1	46.2	47.3	47.3	47.2	0.39	0.753	0.570	0.581	0.560
35 d	1,896.5	1,966.7	1,974.7	1,936.8	1,973.9	15.18	0.446	0.113	0.574	0.559
Average daily gain (g/d/bird)
1–14 d	25.3^b	26.8^ab	27.1^ab	24.8^b	28.2^a	0.34	0.003	< 0.001	0.614	0.198
15–35 d	71.2	73.6	73.7	73.3	72.9	0.68	0.808	0.530	0.693	0.397
1–35 d	48.3	50.2	50.4	49.1	50.6	0.38	0.262	0.045	0.570	0.707
Average daily feed intake (g/d/bird)
1–14 d	31.1^ab	32.9^ab	32.5^ab	30.4^b	33.9^a	0.37	0.011	0.002	0.607	0.122
15–35 d	102.6	98.9	101.4	105.5	102.3	1.78	0.869	0.462	0.540	0.738
1–35 d	66.9	65.9	66.9	67.9	68.1	0.91	0.956	0.950	0.496	0.982
Feed conversion ratio
1–14 d	1.2	1.2	1.2	1.2	1.2	0.01	0.430	0.316	0.365	0.985
15–35 d	1.4	1.3	1.4	1.4	1.4	0.03	0.891	0.344	0.908	0.864
1–35 d	1.3	1.3	1.3	1.3	1.3	0.02	0.897	0.227	0.811	0.873

^a-b

Means in the row without common superscripts are significantly different (P ≤ 0.05).

C = Basal diet; A = Basal diet plus enramycin (10 mg/kg); SYN = Basal diet plus Bacillus species–fermented products; EO = Basal diet plus essential oils; SYN+EO = Basal diet plus Bacillus species–fermented products and essential oils.