Table 5.

Effects of probiotics and CMP on bacterial richness and diversity indices in the rumen of captive lambs.

Items	Control	Probiotics	CMP	Compound	SEM	P-value
OTU	720.00	590.25	720.20	676.80	24.96	0.254
Shannon index	4.38	4.32	4.76	4.41	0.07	0.132
Simpson index	0.05	0.05	0.02	0.05	0.01	0.332
Ace index	889.25	734.84	876.34	832.17	28.11	0.244
Chao index	888.21	732.47	880.92	833.63	28.70	0.237
coverage	0.9924	0.9938	0.9928	0.9931	0.00	0.278

Control: the basal diet (n = 4); probiotics: supplemented with 0.1% probiotics (consists of Bacillus licheniformis, Bacillus subtilis, and Lactobacillus plantarum at a ratio of 1:1:0.5) in the basal diet (n = 4); CMP: supplemented with 0.1% Chinese medicine polysaccharide in the basal diet, which come from the mixture of Lycium barbarum and Astragalus membranaceus in the ratio of 2:1, and in which the content of polysaccharides was 114.7 mg/g (n = 5); compound: supplemented with 0.1% probiotics and 0.1% Chinese medicine polysaccharides in the basal diet (n = 5).

OTU, operational taxonomic units, which were screened for further annotation, and sequences with > 97% similarity were assigned to the same OTUs.