. 2023 Sep 5;13:14612. doi: 10.1038/s41598-023-41743-9

Table 2.

Live weight, weight gain per period (WG), feed intake (FI), and feed conversion ratio (FCR) of broilers in the period of 1 to 42 days of age.

Variable	Control¹	OFS_0.75	OFP_1.0	OFP_1.5	Sal	Sal_VIR	Sal_OFS_0.5	Sal_OFP_1.0	SEM	Prob²
1–14 days (pre-infection)
BWG	32.50^ab	32.38^ab	32.60^ab	33.06^a	32.51^ab	33.47^a	32.07^b	32.47^ab	0.11	***
FI	36.70	36.96	36.73	37.27	36.80	37.07	36.30	36.62	0.10	ns
FCR	1.13^ab	1.14^a	1.13^ab	1.13^ab	1.13^ab	1.11^b	1.13^ab	1.13^ab	0.002	*
14–21 days (7 days post-infection)
BWG	52.91^b	53.48^b	53.0^b	53.45^b	63.09^a	65.00^a	62.91^a	64.00^a	0.75	*
FI	83.35^b	83.86^b	82.67^b	80.34^b	92.19^a	92.90^a	90.46^a	91.54^a	0.73	*
FCR	1.58^a	1.57^a	1.54^ab	1.51^abc	1.46^bc	1.43^c	1.44^c	1.43^c	0.009	*
21–28 days (14 days post-infection)
BWG	85.51^c	87.98^bc	88.54^bc	90.04^ab	91.55^ab	95.62^a	92.40^ab	93.00^ab	0.63	*
FI	138.70	140.75	140.21	142.20	142.90	145.11	142.17	142.89	0.61	ns
FCR	1.62^a	1.60^ab	1.58^abc	1.58^abc	1.58^abc	1.52^c	1.54^bc	1.54^bc	0.006	*
28–42 days (final period)
BWG	120.13	121.46	122.76	120.79	123.23	123.11	124.61	125.06	0.47	ns
FI	212.29	211.01	211.55	208.06	211.91	209.48	212.71	212.48	0.75	ns
FCR	1.77^a	1.74^ab	1.72^b	1.72^b	1.72^b	1.70^b	1.71^b	1.70^b	0.004	*
1–42 days (total period)
BWG	73.95^d	74.85^d	75.53^bc	75.20^c	77.69^abc	78.96^a	78.11^ab	78.68^a	0.30	*
FI	120.01	120.09	119.91	118.87	122.39	121.85	121.78	122.11	0.36	ns
FCR	1.62^a	1.60^ab	1.59^bc	1.58^bcd	1.58^cde	1.54^f	1.59^def	1.55^ef	0.003	*

Means of 22 birds per pen, 10 replicates per treatment, 220 birds per treatment. Birds will be challenged orally at 14 days of placement with a coccidiosis inoculum.

SEM standard errors of the mean.

¹NC: without AGP or another additive, PC: virginiamycin 16 ppm and salinomycin 66 ppm, PC2: salinomycin 66 ppm, NC_FOP_1.5: NC + functional oil powder, NC_FOS_0.75: NC + functional oil spray, PC2_FOP_1: PC2 + functional oil powder, PC2_FOS_0.5: PC2 + functional oil spray (PC2_FOS_0.5), NC_FOP_1: NC + functional oil powder.

²Probabilities, means with different letters differ statistically by Tukey: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05.