showed a trendP = 0.053
The results showed that the Shannon index and Simpson index exhibited significant differences ( p < 0.05) between the CN and FCF groups; the Chao1 index showed a trend for difference ( P = 0.053) in the jejunum content ( Figure 4A ), whereas in the cecum content, significant differences ( p < 0.05) were observed for all alpha diversity values (including ACE, Chao1, Shannon, and Simpson index) between the CN and FCF groups ( Figure 4B ).