Table 4.
Item | Treatmentb | Pooled SEM | Contrastc | |||||
---|---|---|---|---|---|---|---|---|
Control | LPS | LPS + Low GLP-2 | LPS + High GLP-2 | 1 | 2 | 3 | ||
Duodenum | ||||||||
Villus height, μm | 438 | 335 | 420 | 438 | 8 | <0.001 | <0.001 | <0.001 |
Crypt depth, μm | 242 | 257 | 264 | 237 | 3 | 0.094 | 0.415 | 0.027 |
VCR | 1.81 | 1.31 | 1.60 | 1.85 | 0.04 | <0.001 | <0.001 | <0.001 |
Jejunum | ||||||||
Villus height, μm | 341 | 284 | 322 | 353 | 7 | 0.001 | 0.019 | <0.001 |
Crypt depth, μm | 210 | 207 | 227 | 212 | 3 | 0.708 | 0.017 | 0.477 |
VCR | 1.63 | 1.38 | 1.43 | 1.67 | 0.03 | 0.005 | 0.607 | 0.002 |
Ileum | ||||||||
Villus height, μm | 306 | 239 | 259 | 324 | 6 | <0.001 | 0.041 | <0.001 |
Crypt depth, μm | 199.5 | 205.3 | 209.9 | 209.0 | 1.8 | 0.259 | 0.377 | 0.863 |
VCR | 1.54 | 1.16 | 1.24 | 1.56 | 0.03 | <0.001 | 0.237 | <0.001 |
aGLP-2 = Glucagon-like peptide 2; LPS = Escherichia coli lipopolysaccharide; VCR = Villus height/Crypt depth ratio
bControl: piglets injected with sterile saline on d 14 postweaning; LPS: pigs challenged by LPS on d 14 postweaning; LPS + Low and LPS + High GLP-2: piglets pretreated with GLP-2 at doses of 2 and 10 nmol/kg BW per day for the first 7 d after weaning were challenged by LPS on d 14 postweaning. The data were obtained 24 h after injection with LPS and 15 d post-weaning
cContrast: (1) control v. LPS; (2) LPS v. LPS + Low GLP-2; (3) LPS v. LPS + High GLP-2; Values are means of ten replicates