Preliminary Study on the Effect of Bacillus amyloliquefaciens TL on Cecal Bacterial Community Structure of Broiler Chickens

Table 5

Difference in the abundance of nine bacterial genera among the control, antibiotic, and probiotic groups, as determined on day 35 (n = 8).

Taxa	Relative abundance			value
Genera	C	P	A	P vs. C	A vs. C	P vs. A
	(Mean% ± SD)	(Mean% ± SD)	(Mean% ± SD)
Faecalibacterium	3.29 ± 0.005	8.34 ± 0.015	9.25 ± 0.020			n.s.
Bacteroides	9.72 ± 0.015	5.93 ± 0.015	7.77 ± 0.016	n.s.	n.s.	n.s.
Lactobacillus	5.20 ± 0.005	4.31 ± 0.002	6.91 ± 0.022	n.s.	n.s.	n.s.
Oscillospira	2.16 ± 0.002	2.55 ± 0.002	2.17 ± 0.002	n.s.	n.s.	n.s.
Ruminococcus	1.24 ± 0.001	1.24 ± 0.001	1.50 ± 0.000	n.s.	n.s.	n.s.
Parabacteroides	7.06 ± 0.003	1.49 ± 0.006	0.74 ± 0.003			n.s.
Bilophila	1.815 ± 0.007	0.375 ± 0.003	0.127 ± 0.001			n.s.
Mucispirillum	0.84 ± 0.007	1.88 ± 0.011	0.16 ± 0.000	n.s.
Treponema	1.30 ± 0.001	0.174 ± 0.000	0.32 ± 0.001			n.s.

n.s. means not significant (); significant (). C = control group; A = chlortetracycline group; P = Bacillus amyloliquefaciens TL group.