Table 10.

Relative abundances of intestinal bacteria at genus level of Ningdu yellow chickens %.

Items	Additive amount of TCP					SEM	P value
	0.0%	0.2%	0.4%	0.6%	0.8%		ANOVA	Linear	Quadratic
Bacteroides	23.14	32.64	33.27	34.22	28.05	1.643	0.152	0.328	0.033
Rikenellaceae	11.26	15.22	13.97	14.49	14.60	1.118	0.844	0.456	0.619
UCG-001 PrevotellaceaeUCG-001	4.36	4.33	4.36	8.35	3.96	0.724	0.257	0.533	0.566
Fusobacterium	4.64	1.93	0.27	0.30	0.08	0.719	0.199	0.025	0.043
UCG-004	0.71	0.02	3.37	0.97	0.06	0.473	0.222	0.917	0.433
Methanobrevibacter	3.27	1.25	0.98	3.46	2.40	0.530	0.517	0.899	0.652
Phascolarctobacterium	1.00	2.00	2.52	2.32	3.35	0.339	0.265	0.027	0.090
Anaerobiospirillum	0.03	0.11	0.05	0.26	1.30	0.272	0.562	0.154	0.235
Desulfovibrio	2.84	2.61	2.46	1.30	1.13	0.308	0.245	0.021	0.072
Prevotellaceae_Ga6A1_group	0.57	0.04	1.70	0.16	0.05	0.264	0.320	0.628	0.645

Values are the means and SEM of 12 broilers (2 broilers per replicate).

Abbreviations: SEM, standard error of the mean; TCP, traditional Chinese prescription.