Table 5.

Effects of dietary cinnamon powder on the performance (BWG, AFI, FCR, and FE) of broiler chickens during the starter period (1–21 days of age).

Parameters	Treatment 1
Period (days)	NC	PC	2000CN	4000 CN	6000 CN	SEM 3	p-Value
BWG (g)
1–7	13.63 2ab	15.01 a	14.46 ab	13.38 b	13.74 ab	0.21	0.104
1–10	20.63 b	23.48 a	22.43 ab	21.06 b	20.98 b	0.328	0.037
1–14	26.36 2b	29.34 a	29.32 a	26.44 b	27.37 ab	0.415	0.004
1–21	34.24 b	37.48 a	37.71 a	34.23 b	34.97 b	0.501	0.003
AFI (g)
1–7	20.58	21.4	19.7	20.4	20.08	0.254	0.196
1–10	20.3	21.13	19.49	21.2	19.48	0.365	0.384
1–14	23.84	24.75	24.28	24.41	22.95	0.389	0.539
1–21	36.04	38.32	36.53	36.9	35.82	0.474	0.3
FCR (g/g)
1–7	1.51	1.43	1.37	1.53	1.49	0.026	0.245
1–10	0.99	0.9	0.87	1.02	0.94	0.023	0.246
1–14	0.91	0.85	0.83	0.93	0.85	0.015	0.131
1–21	1.05 a	1.03 ab	0.97 b	1.08 a	1.03 ab	0.012	0.027
FE (g/g)
1–7	0.66	0.7	0.74	0.66	0.69	0.011	0.18
1–10	1.03	1.12	1.16	1.02	1.08	0.023	0.298
1–14	1.11	1.19	1.23	1.09	1.19	0.021	0.134
1–21	0.95 b	0.98 ab	1.04 a	0.93 b	0.98 ab	0.011	0.026

¹ NC: negative control group = commercial feed, no additives by cinnamon powder; PC: positive control group = commercial feed, treated by antibiotic Colimox powder (mixture of amoxicillin and colistin at 200 and 150 mg/kg, respectively); 2000, 4000, and 6000 mg/kg treated groups = commercial feed, treated by cinnamon powder; ² mean of eight replicates per treatment; ³ SEM, standard error of mean for treatments effect; ^a,b mean values within rows with different superscripts are significantly different (p < 0.05); BWG: body weight gain; AFI: average feed intake; FCR: feed conversion ratio; and FE: feed efficiency.