Table 6.
Effect of treatment on ileal morphology and E. coli attachment in weaned pigs challenged with F18 ETEC
| Treatment1 | ||||||
|---|---|---|---|---|---|---|
| Item | NC | PC | DFM1 | DFM2 | SEM | P-value |
| Villus height, µm | 344.41a | 253.82b | 206.92c | 256.05b | 14.56 | <.001 |
| Crypt depth µm | 199.43 | 177.95 | 160.44 | 172.83 | 10.53 | 0.074 |
| VH:CD2 | 1.74a | 1.48ab | 1.29b | 1.54ab | 0.11 | 0.046 |
| Attachment, % | 0.00 | 14.80 | 33.33 | 0.00 | 5.72 | 0.102 |
1NC (n = 10); PC (n = 9); DFM1 = PC + direct-fed microbial 1 (n = 8; three strains of Bacillus amyloliquefaciens; 7.5 × 105 cfu/g of feed); DFM2 = PC + direct-fed microbial 2 (n = 7; two strains of B. amyloliquefaciens and one strain of Bacillus subtilis; 1.5 × 105 cfu/g of feed). Supplementation rates were based on manufacturer’s recommendations (Danisco Animal Nutrition).
2Villus height:crypt depth ratio.
a-cMeans with differing superscripts indicate a significant (P < 0.05) difference.