Effect of High Dietary Tryptophan on Intestinal Morphology and Tight Junction Protein of Weaned Pig
Table 5
Effect of dietary tryptophan supplementation on intestinal morphology.
Item
Dietary L-tryptophan (%)
ZTS
LTS
HTS
SEM
P value
Duodenum
Villus height (μm)
384.79
386.67
428.00
9.90
0.15
Crypt depth (μm)
126.09
134.39
152.00
7.98
0.44
VH/CD
3.09
3.08
2.95
0.14
0.90
Goblet cell (unit)
20.00
24.57
19.33
1.57
0.22
Lymphocyte count (unit)
259.88
243.29
241.17
9.15
0.46
Jejunum
Villus height (μm)
350.99
299.48
336.06
12.34
0.22
Crypt depth (μm)
7.80
0.02
VH/CD
0.12
0.004
Goblet cell (unit)
10.75
14.75
11.13
1.04
0.142
Lymphocyte count (unit)
281.13
302.13
296.38
8.20
0.34
Ileum
Villus height (μm)
266.96
309.95
300.11
8.72
0.1
Crypt depth (μm)
106.77
104.78
138.73
7.48
0.12
VH/CD
0.14
0.09
Goblet cell (unit)
23.71
20.13
17.29
2.03
0.24
Lymphocyte count (unit)
257.57
304.25
299
11.07
0.1
Values with different letters within the same row are different (P < 0.05). ZTS: zero Trp supplementation (0% Trp); LTS: low Trp supplementation (0.15% Trp); HTS: high Trp supplementation (0.75% Trp).
