Table 11.
Effects of fat source and dietary FFA content on the histomorphology of the distal jejunum mucosa.
| Item | Villus height, μm | Crypt depth, μm | VH:CD ratio1 |
|---|---|---|---|
| Experimental diet | |||
| S10 | 841.3 | 111.3 | 7.69 |
| S20 | 867.5 | 125.6 | 7.11 |
| S30 | 884.0 | 128.5 | 6.79 |
| S45 | 888.7 | 142.1 | 6.40 |
| P10 | 826.5 | 123.5 | 6.73 |
| P20 | 848.6 | 135.9 | 6.44 |
| P30 | 855.0 | 144.1 | 6.20 |
| P45 | 827.3 | 137.7 | 6.03 |
| Fat source | |||
| Soybean | 870.9a | 126.1 | 7.00a |
| Palm | 840.7b | 135.9 | 6.35b |
| FFA content | |||
| 10% | 833.4 | 117.7b | 7.21a |
| 20% | 858.2 | 131.3ab | 6.77ab |
| 30% | 868.1 | 136.3a | 6.50ab |
| 45% | 861.1 | 139.5a | 6.21b |
| SEM2 | 18.32 | 7.22 | 0.33 |
| Effects, P-values | |||
| Fat source | 0.032 | 0.108 | 0.008 |
| FFA content | 0.459 | 0.030 | 0.027 |
| Fat source × FFA | 0.801 | 0.804 | 0.843 |
| Linear contrast3, P-values | |||
| Overall | - | <0.001 | 0.003 |
S = soybean; P = palm; FFA = free fatty acids.
a-b Means within each variable with more than 2 levels (experimental diet or FFA content) not sharing a common superscript differ according to Tukey's test (P < 0.05).
1
Villus height-to-crypt depth ratio.
2
Pooled standard error of the means.
3
Linear responses to dietary FFA content.