Table 3.
Mean values of intestinal morphometry in the duodenum and jejunum of piglets at 14 and 35 days of experiment
| Variable | Treatment1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||
| Day 14 | Day 35 | |||||||||
|
|
|
|||||||||
| NC | PC | BT | SEM | p-value* | NC | PC | BT | SEM | p-value* | |
| ------------------------------ Duodenum --------------------------------- | ----------------------------------- Duodenum --------------------------------------- | |||||||||
| VH (μm) | 447 | 386 | 341 | 20.49 | 0.098 | 508 | 413 | 425 | 26.61 | 0.335 |
| CD (μm) | 422a | 393ab | 303b | 20.51 | 0.025 | 460 | 400 | 417 | 22.66 | 0.595 |
| VH:CD | 1.06 | 1.00 | 1.14 | 0.06 | 0.692 | 1.12 | 1.06 | 1.06 | 0.07 | 0.926 |
| VW (μm) | 154 | 152 | 131 | 6.13 | 0.24 | 173 | 153 | 216 | 18.99 | 0.390 |
| VD (μm2) | 38.35 | 33.35 | 32.00 | 2.72 | 0.667 | 31.70 | 22.75 | 27.70 | 2.75 | 0.451 |
| ------------------------------------ Jejunum ------------------------------------ | ----------------------------------------- Jejunum ------------------------------------ | |||||||||
| VH (μm) | 343 | 379 | 341 | 20.95 | 0.749 | 433 | 376 | 406 | 26.19 | 0.710 |
| CD (μm) | 358 | 333 | 303 | 12.53 | 0.218 | 363 | 314 | 314 | 12.69 | 0.215 |
| VH:CD | 1.01 | 1.14 | 1.14 | 0.09 | 0.817 | 1.22 | 1.2 | 1.32 | 0.09 | 0.876 |
| VW (μm) | 160 | 135 | 131 | 7.5 | 0.23 | 153 | 136 | 158 | 7.25 | 0.464 |
| VD (μm2) | 43.25 | 32.70 | 35.00 | 5.23 | 0.73 | 18.75 | 22.00 | 26.75 | 2.11 | 0.328 |
SEM, standard error of the mean; VH, villus height; CD, crypt depth; VH:CD, villus height:crypt depth; VW, villus width; VD, villus density.
1)
NC, negative control: basal diet; PC, positive control: basal diet + colistin sulfate; BT, basal diet + butyrate- and tannin-based additive.
*
Diet effect.
a,b
Different letters in the same row are statistically different (p<0.05) according to Tukey’s test.