Table 3.
Summary of 16S rRNA OTU data and α-diversity values (Evenness Index, Shannon Index, and Faith’s Phylogenetic Diversity Index) in association with statistical test
| Observed OTUs | Evenness Index | Shannon Index | Faith PD Index | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number | SD | Pielou_e | SD | Value | SD | Value | SD | |||||
| HFC | 676 | 75 | 0.883 | 0.016 | 28.557 | 2.228 | 8.299 | 0.234 | ||||
| HFH | 798 | 144 | 0.915 | 0.003 | 32.970 | 2.997 | 8.799 | 0.241 | ||||
| SIC | 716 | 85 | 0.899 | 0.007 | 31.547 | 1.685 | 8.521 | 0.190 | ||||
| SIH | 733 | 88 | 0.918 | 0.008 | 31.916 | 1.421 | 8.725 | 0.180 | ||||
| Kruskal-Wallis (pairwise) | ||||||||||||
| H | p value | q value | H | p value | q value | H | p value | q value | H | p value | q value | |
| HFC vs HFH | 2.45 | 0.11 | 0.69 | 6.81 | 0.009 | 0.013 | 4.18 | 0.028 | 0.084 | 4.81 | 0.028 | 0.084 |
| SIC vs SIH | 0.99 | 0.75 | 0.75 | 6.81 | 0.009 | 0.013 | 2.45 | 0.117 | 0.140 | 0.098 | 0.754 | 0.754 |
Each index is reported as mean ± standard deviation of the calculated value for each animal within the experimental group. The statistical comparison was considered only between the experimental groups of the same breed through Kruskal-Wallis test
HFC, Holstein-Friesian cows; HFH, Holstein-Friesian heifers; SIC, Simmental cows; SIH, Simmental heifers