Table 1.
Strain | 24 h | 48 h | 72 h |
---|---|---|---|
NCTC11168 | 7.59 ± 0.02 | 7.24 ± 0.26 | 6.62 ± 0.25 |
NAL1 | 6.60 ± 0.08** | 6.22 ± 0.20* | 6.01 ± 0.06ns |
NAL2 | 6.25 ± 0.04**** | 6.06 ± 0.03* | 6.03 ± 0.02ns |
NAL3 | 6.01 ± 0.06*** | 5.97 ± 0.20** | 5.90 ± 0.19* |
CIP1 | 6.36 ± 0.22* | 6.34 ± 0.23* | 5.90 ± 0.34ns |
CIP2 | 6.05 ± 0.04**** | 5.95 ± 0.05* | 5.91 ± 0.06ns |
CIP3 | 6.49 ± 0.03**** | 6.44 ± 0.10* | 6.23 ± 0.17ns |
LD50 was calculated for each strain LD50 for each strain at 24 h, 48 h and 72 h post inoculation and averaged over three replicates. Data is expressed as mean Log LD50 (±SD) (n = 3). Statistically significant differences were calculated using the Welch two sample t-test, * denotes p ≤ 0.05.