Table 4. Log10 reductions in the concentration (copies g-1 compost dry weight) of 12 different antimicrobial resistance determinants from day 0 to day 99 in composted manure from cattlea.
| Resistance determinant | CON | DDG | CON C&D |
|---|---|---|---|
| erm(A) | -1.51 ± 0.37 | -1.28 ± 0.51 | -1.17 ± 1.28 |
| erm(B) | -1.71 ± 0.52 | -1.66 ± 0.31 | -1.50 ± 0.57 |
| erm(F) | -0.92 ± 1.38 | -0.28 ± 1.01 | -1.46 ± 0.87 |
| erm(X) | -1.00 ± 0.42 | -0.46 ± 0.4 | -0.42 ± 0.64 |
| tet(B) | -1.15 ± 0.23a | -0.45 ± 0.26b | -0.23 ± 0.62b |
| tet(C) | -1.94 ± 0.38b | 0.45 ± 0.47a | 0.01 ± 1.09a |
| tet(H) | -2.79 ± 0.62 | -1.86 ± 0.45 | -2.53 ± 1.46 |
| tet(L) | -0.97 ± 0.38 | -0.61 ± 0.29 | -0.88 ± 0.82 |
| tet(M) | -2.6 ± 0.58b | -1.63 ± 0.38a | -1.37 ± 0.60a |
| tet(W) | -1.55 ± 0.41 | -1.52 ± 0.30 | -1.87 ± 0.96 |
| sul1 | -0.66 ± 0.74 | -0.88 ± 0.43 | -1.47 ± 1.01 |
| sul2 | -1.37 ± 1.00 | -1.62 ± 0.47 | -2.41 ± 0.81 |
a CON, manure from cattle on a control diet of barley; DDG, manure from cattle fed dried distillers grains and solubles; CON C&D, manure from the control diet cattle amended with construction and demolition waste. Mean ± standard deviation (n = 6) with top and middle depths combined for analysis. Means with different lowercase letters and in bold in rows are significantly different from one another (P < 0.05).