extremely significantP < 0.01
For the IM and FM groups, the difference was extremely significant ( P < 0.01) for the ACE and Chao 1 indexes, but not significant for the Simpson and Shannon indexes.
For the IM and FM groups, the difference was extremely significant ( P < 0.01) for the ACE and Chao 1 indexes, but not significant for the Simpson and Shannon indexes.
The results show that there was a decreasing trend in the number of microbial species (OTUs) detected over the three stages.