TABLE 3.
Effect of interval before soil incorporation on decimal reduction values (D values) for zoonotic agents present in livestock wastes spread onto an arable sandy loam soil in late spring 2001a
| Waste type | Treatment | D value (days) for:
|
Mean | |||
|---|---|---|---|---|---|---|
| Salmonella sp. | E. coli O157 | Listeria sp. | Campylobacter sp. | |||
| Dairy cattle FYM | Immediate | 2.18 | 2.31 | 2.94 | 2.91 | 2.59 |
| Delayed | 1.04 | 5.06 | 2.59 | 0.98 | 2.42 | |
| Unincorporated | 1.12 | 1.04 | 3.44 | 1.13 | 1.68 | |
| Dairy cattle slurry | Immediate | 3.98 | 1.62 | 1.37 | 4.03 | 2.75 |
| Delayed | 1.11 | 0.89 | 0.88 | 0.86 | 0.94 | |
| Unincorporated | 0.89 | 0.99 | 0.88 | 0.91 | 0.92 | |
| Poultry broiler litter | Immediate | 1.28 | 1.05 | 1.00 | 1.11 | 1.11 |
| Delayed | 0.76 | 0.66 | 0.81 | 1.15 | 0.84 | |
| Unincorporated | 1.66 | 0.75 | 0.97 | 0.79 | 1.04 | |
| Pig FYM | Immediate | 2.90 | 1.00 | 1.32 | 1.58 | 1.70 |
| Delayed | 1.28 | 0.95 | 0.78 | 0.74 | 0.94 | |
| Unincorporated | 1.33 | 0.67 | 0.93 | 0.79 | 0.93 | |
| Pig slurry | Immediate | 2.44 | 4.89 | 1.13 | 1.03 | 2.37 |
| Delayed | 1.89 | 0.97 | 0.66 | 0.63 | 1.04 | |
| Unincorporated | 0.79 | 1.76 | 0.84 | 2.26 | 1.41 | |
a
Values were calculated from measurements of bacterial decline over the 16 days immediately after waste spreading. FYM is a mixture of fecal material and bedding.