Table 8.
Effect of ANE and residual effect of ZnO on colonic and caecal Salmonella counts and on colonic bacterial populations on d 34 (Least-square mean values ± SEM)
| Bacterial group, logGCN/g digesta | Treatment1 | SEM | P-value | ||
|---|---|---|---|---|---|
| Control | ZnO-residual | ANE | |||
| Caecal digesta | |||||
| Salmonella enterica | 6.16 | 6.30 | 6.28 | 0.093 | 0.536 |
| Colonic digesta | |||||
| Total bacteria | 11.98 | 11.95 | 11.87 | 0.051 | 0.324 |
| Lactobacillus spp. | 10.97 | 11.07 | 11.28 | 0.146 | 0.324 |
| Bifidobacterium spp. | 7.12ab | 6.85b | 7.49a | 0.159 | 0.025 |
| Enterobacteriaceae | 7.35a | 6.49b | 6.66b | 0.210 | 0.017 |
| B-CoA | 8.08 | 8.18 | 8.12 | 0.112 | 0.809 |
| Prevotella spp. | 11.62 | 11.57 | 11.58 | 0.075 | 0.884 |
| Salmonella enterica | 7.15 | 7.17 | 6.98 | 0.098 | 0.321 |
ANE, Ascophyllum nodosum extract; ZnO, Zinc oxide; GCN, Gene copy number; B-CoA, Butyryl-CoA:acetate CoA-transferase
a,bMean values within a row with different lowercase superscript letter indicate significant differences between dietary treatments (P < 0.05)
1A total of 12 replicates were used per dietary treatment (replicate = pig)