. 2020 Oct 19;10:17704. doi: 10.1038/s41598-020-74754-x

Table 4.

Effects of treatments on growth performance of broiler chickens from 0 to 22 days of age.

Treatments	ADG² (g)			ADFI (g)			FCR (g/g)
Treatments	0–10	11–22	0–22	0–10	11–22	0–22	0–10	11–22	0–22
NC¹	26.25^b	58.95^b	85.20^b	24.93^a	74.79^b	99.37^b	0.950^a	1.269^b	1.170^b
PC	26.15^b	55.91^c	82.06^c	23.77^ab	88.18^a	111.95^a	0.909^a	1.578^a	1.364^a
AMP	27.05^ab	60.29^ab	87.34^ab	22.61^b	72.23^b	94.85^b	0.836^b	1.199^b	1.086^c
Antibiotic	27.78^a	61.94^a	89.72^a	24.64^a	75.26^b	99.90^b	0.888^ab	1.215^b	1.113^bc
SEM³	0.318	0.446	0.644	0.422	1.401	1.577	0.0164	0.0257	0.0181
P value	0.007	0.001	0.001	0.005	0.001	0.001	0.001	0.001	0.001

^a–cValues within a column with different letters differ significantly (P < 0.05).

¹NC: negative control group received corn-soybean meal diet without challenge and additives; PC: positive control group received NC diet experimentally challenged with necrotic enteritis; AMP: PC received group supplemented with 20 mg antimicrobial peptide/ kg diet; Antibiotic: PC received group supplemented with 45 mg antibiotic (bacitracin methylene disalicylate)/kg diet.

²ADG: average daily gain; ADFI: average daily feed intake; FCR: feed conversion ratio.

³SEM: standard error of means (results are given as means of 6 pens of 15 birds/treatment).