Table 2. Bacterial species richness and diversity estimators in fecal microbial communities across location1 and tolerance groups2.
| BBCFL | UPRS | P-value3 | |||||
|---|---|---|---|---|---|---|---|
| Diversity Parameter | HT | LT | HT | LT | T | L | T*L |
| Ace (richness) | 9473.9b (557.9) | 9245.1b (557.9) | 12074a (557.9) | 9187.8b (588.0) | 0.009 | 0.031 | 0.025 |
| Chao (richness) | 6620.9b (318.7) | 6506.2b (318.7) | 8127.3a (318.7) | 6418.1b (335.9) | 0.008 | 0.035 | 0.019 |
| Npshannon (diversity) | 5.80a (0.16) | 5.29b (0.16) | 5.98a (0.16) | 5.06b (0.17) | <0.001 | 0.918 | 0.209 |
| Shannon (diversity) | 5.71a (0.17) | 5.20b (0.17) | 5.90a (0.17) | 4.97b (0.17) | <0.001 | <0.889 | 0.213 |
| Simpson (evenness) | 0.018bc (0.014) | 0.057ab (0.014) | 0.017c (0.015) | 0.062a (0.014) | 0.005 | 0.9 | 0.85 |
1BBFLC, Butner Beef Cattle Field Laboratory (Bahama, NC, USA); UPRS, Upper Piedmont Research Station (UPRS; Piedmont, NC, USA)
2HT, High Tolerance; LT, Low Tolerance
3P, Tolerance group (HT or LT); L, Location (BBCFL or UPRS); L*T, interaction between T and L
a,b,c Least-squares means of alpha diversity values lacking common superscripts are statistically different (P<0.05) based on Tukey’s test
Numbers within parentheses represent standard error measurements.