Table 5.
Relative mRNA expressions of nutrient transporters in the jejunum of pigs fed diets differing in fibre content and viscosity*
| Fibre content | CSB | DDGS | SEM† | P ‡ | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Viscosity | CEL | MCMC | HCMC | CEL | MCMC | HCMC | F | V | F × V | |
| Sugar transporters§ | ||||||||||
| GLUT2 | 1·00 | 1·03 | 1·02 | 0·92 | 0·96 | 0·98 | 0·05 | 0·17 | 0·74 | 0·94 |
| GLUT5 | 0·99 | 1·00 | 0·96 | 0·97 | 0·96 | 0·88 | 0·09 | 0·50 | 0·66 | 0·92 |
| SGLT1 | 1·00 | 1·04 | 0·98 | 0·90 | 1·01 | 0·98 | 0·07 | 0·41 | 0·56 | 0·70 |
| Amino acid transporters|| | ||||||||||
| TAT1 | 1·00 | 1·04 | 0·98 | 0·90 | 1·00 | 0·99 | 0·08 | 0·48 | 0·63 | 0·74 |
| b0,+AT | 1·00 | 1·01 | 1·00 | 0·86 | 1·00 | 0·95 | 0·08 | 0·34 | 0·65 | 0·75 |
| B0AT1 | 1·00 | 1·05 | 0·98 | 0·83 | 1·03 | 0·98 | 0·10 | 0·48 | 0·53 | 0·07 |
| LAT2 | 1·00 | 1·05 | 0·97 | 0·91 | 1·01 | 1·00 | 0·08 | 0·66 | 0·65 | 0·74 |
| CAT1 | 1·00 | 1·04 | 0·97 | 0·89 | 1·00 | 0·97 | 0·07 | 0·39 | 0·53 | 0·70 |
| ASCT2 | 1·00 | 1·12 | 0·96 | 0·88 | 1·01 | 0·97 | 0·09 | 0·32 | 0·33 | 0·71 |
| PEPT1 | 1·00 | 1·11 | 1·03 | 0·90 | 1·06 | 1·03 | 0·07 | 0·43 | 0·21 | 0·77 |
Two basal diets: maize–soyabean meal (MSBM) or MSBM plus 30 % distillers dried grains with solubles (MSBM + DDGS) with three levels of viscosity (i.e. CEL, non-viscous cellulose; MCMC, medium-viscosity carboxymethylcellulose; HCMC, high-viscosity carboxymethylcellulose).
Standard error of the mean.
Factorial arrangement of treatments fibre (F), viscosity (V) main effects with eighteen and twelve observations, respectively, and fibre and viscosity interaction (F × V) with six observations per treatment.
GLUT2 = solute carrier family 2 member 2 (SLC2A2), GLUT5 = solute carrier family 2 member 5 (SLC2A5), SGLT1 = sodium-dependent glucose cotransporter 1 (SLC5A1).
ASCT2, alanine, serine, cysteine transporter 2 (SLC1A5); AT1, T-type amino acid transporter 1 (SLC16A10); b0,+AT, b(0,+)-type amino acid transporter 1 (SLC7A9); B0AT1, B(0,+)-type amino acid transporter 1 (SLC6A19); CAT1, cationic amino acid transporter 1 (SLC7A1); LAT2, large neutral amino acids transporter small subunit 2 (SLC7A8); PEPT1, peptide transporter solute carrier family 15 member 1 (SLC15A1).