Supplementation of amylase combined with glucoamylase or protease changes intestinal microbiota diversity and benefits for broilers fed a diet of newly harvested corn

Table 9 The number of OTUs and sample richness and diversity of cecal microbiota

Treatments	OTUs per sample	Good’s coverage	Chao1 (richness)	Shannon (diversity)	Simpson (diversity)
Control	595	0.995	581.59	5.89	0.95
Enzyme A	568	0.995	631.27	5.78	0.96
Enzyme B	537	0.995	571.41	5.45	0.94
Enzyme C	555	0.996	586.81	5.72	0.95
Enzyme D	546	0.996	524.78	5.86	0.95
Enzyme E	529	0.996	492.43	5.64	0.94

Enzyme A (1,500 U/g α-amylase); Enzyme B (Enzyme A + 300 U/g amylopectase + 20,000 U/g glucoamylase); Enzyme C (Enzyme B + protease 10,000 U/g); Enzyme D (Enzyme C + 15,000 U/g xylanase); Enzyme E (Enzyme D + 200 U/ g cellulase + 1,000 U/g pectinase)

ISSN: 2049-1891