. 2023 Mar 16;14:1138903. doi: 10.3389/fmicb.2023.1138903

Table 3.

Effects of Bacillus subtilis DSM29784 treatment group on the growth performance of broilers.

Items	Ctr	SNE	BS	ER	SEM	p-Value
1 ~ 21d
BW(g)	551.97	526.47	535.92	547.04	12.664	0.214
ADG(g/d)	24.14	22.95	23.38	23.92	0.607	0.225
ADFI(g/d)	41.99	42.34	42.06	42.22	1.146	0.99
F:G	1.74^b	1.85^a	1.80^ab	1.77^ab	0.037	0.057
Mortality (%)	1.67^b	7.50^a	5.00^ab	2.50^b	0.013	0.001
22 ~ 63d
BW (g)	2676.99^a	2215.68^c	2508.00^b	2600.14^a	32.366	<0.001
ADG (g/d)	50.60^a	40.22^c	46.95^b	48.88^ab	0.725	<0.001
ADFI (g/d)	140.53^a	124.18^b	136.29^ab	135.49^ab	4.843	0.019
F:G	2.78^b	3.09^a	2.90^ab	2.77^b	0.096	0.012
Mortality (%)	3.38^b	8.97^a	6.14^ab	4.21^ab	0.019	0.039
1 ~ 63d
ADG (g/d)	41.78^a	34.46^c	39.10^b	40.56^a	0.515	<0.001
ADFI (g/d)	102.09^a	89.92^b	98.88^a	100.27^a	2.822	0.002
F:G	2.44	2.61	2.53	2.47	0.064	0.082
Mortality (%)	5.00^c	15.83^a	10.83^b	6.67^bc	0.017	<0.001

ADG, average daily gain; ADFI, average daily feed intake; F:G, feed:gain ratio. ^a,b,cMean values within the same row with unlike superscript letters were significantly different (p < 0·05). SEM = standard error of mean. Each value represents the mean ± SEM of 6 replicates (n = 6). Ctr group, basal diet in control group; SNE group, basal diet + SNE (20-fold dose coccidiosis vaccine) + 1 ml of Clostridium perfringens (2 × 10⁸ cfu/ml coinfection); BS group, basal diet +1 × 10⁹ colony-forming units (cfu)/kg BS diet + SNE; ER group, basal diet +10 mg/kg enramycin (ER) + SNE.