. 2023 Feb 22;12(3):433. doi: 10.3390/antibiotics12030433

Table 5.

Effects of C. butyricum on serum immune parameters (g/L) of broiler chickens.

Item	Treatment ¹					SEM ²	p Value	Response to CB
Item	CON	AM	CBL	CBM	CBH	SEM ²	p Value	Linear	Quadratic
21 days
IgA	1.02	0.89	0.94	0.99	0.99	0.026	0.619	0.882	0.610
IgG	6.61 ^ab	5.91 ^b	7.27 ^a	6.91 ^ab	7.65 ^a	0.172	0.009	0.089	0.911
IgM	0.90	0.76	0.90	0.99	0.95	0.027	0.069	0.360	0.803
39 days
IgA	1.25 ^a	0.86 ^b	1.05 ^ab	1.09 ^ab	0.96 ^ab	0.040	0.019	0. 035	0.621
IgG	7.65 ^ab	6.42 ^b	7.63 ^ab	8.34 ^a	7.54 ^ab	0.186	0.015	0.808	0.303
IgM	0.95	0.85	0.98	0.86	0.82	0.022	0.091	0.031	0.462

^a,b Means within a row with different letters differ (p < 0.05). Results are given as means, n = 6. ¹ The broilers were fed with CON, the basal diet; AM, the basal diet with 150 mg/kg of aureomycin; CBL, the basal diet with C. butyricum at 2 × 10⁸ CFU/kg; CBM, the basal diet with C. butyricum at 4 × 10⁸ CFU/kg; and CBH, the basal diet with C. butyricum at 8 × 10⁸ CFU/kg. ² SEM, standard error of the mean.