Table 5.
Effect of calcium and non-phytate phosphorus (nPP) on the apparent ileal digestibility (AID) of calcium and phosphorus, the ileal disappearance of phytate phosphorus (PPdisp) and normalised relative abundance of transporter mRNA at day 8
(Least-square mean values and pooled standard errors)
| Dietary treatments*… | HH | HL | LH | LL | sem | P |
|---|---|---|---|---|---|---|
| n | 8 | 8 | 16 | 16 | ||
| Ca AID (%) | 22⋅72b | 46⋅78a | 22⋅07b | 49⋅64a | 1⋅69 | <0⋅001 |
| P AID (%) | 48⋅34b | 55⋅68a | 47⋅16b | 56⋅57a | 1⋅08 | <0⋅001 |
| PPdisp (%) | 23⋅07b | 31⋅84a | 19⋅35b | 33⋅19a | 2⋅79 | 0⋅002 |
| mRNA expression | ||||||
| n | 12 | 12 | 12 | 12 | ||
| Calb1 | 0⋅76b | 1⋅06a,b | 0⋅92b | 1⋅34a | 0⋅09 | <0⋅001 |
| ATP2B1 | 0⋅96 | 1⋅12 | 0⋅93 | 1⋅11 | 0⋅09 | 0⋅248 |
| SLC8A1 | 0⋅84 | 1⋅26 | 0⋅85 | 1⋅45 | 0⋅28 | 0⋅321 |
| SLC34A2 | 0⋅91 | 0⋅96 | 0⋅96 | 1⋅19 | 0⋅10 | 0⋅213 |
| SLC20A1 | 1⋅26 | 1⋅26 | 1⋅60 | 1⋅37 | 0⋅15 | 0⋅327 |
| Protein expression | ||||||
| n | 6 | 6 | 6 | 6 | ||
| Calb1 | 1⋅31 | 1⋅32 | 0⋅70 | 0⋅79 | 0⋅86 | 0⋅453 |
| SLC20A1 | 2⋅23 | 0⋅82 | 1⋅37 | 0⋅79 | 2⋅08 | 0⋅081 |
H, high nPP and Ca; L, low nPP and Ca.
a,b Least-square mean values within a row with unlike superscript letters were significantly different (P < 0⋅05).
* See Table 2.