Table 2.
Effect of parity number and sample collection time on the chemical compositions of colostrum from Large-White × Landrace sows.
| Item | Parity Number | Time (h) 1 | SEM | p-Value | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | ≥5 | 0 1 | 6 | 24 | Parity | h | P × h | ||
| DM 2, % | 28.1 a | 25.5 b | 23.9 b | 24.3 b | 25.2 b | 29.3 a | 24.0 b | 22.9 b | 0.351 | 0.001 | <0.001 | 0.454 |
| Protein, % | 14.6 | 13.6 | 12.8 | 12.5 | 14.0 | 18.3 a | 13.5 b | 8.7 c | 0.293 | 0.150 | <0.001 | 0.625 |
| Fat, % | 8.0 a | 7.0 ab | 6.1 b | 6.9 ab | 6.1 b | 6.1 b | 5.5 b | 8.8 a | 0.223 | 0.029 | <0.001 | 0.505 |
| Lactose, % | 3.9 a | 3.3 b | 3.5 b | 3.6 ab | 3.5 b | 3.0 c | 3.5 b | 4.2 a | 0.065 | 0.024 | <0.001 | 0.441 |
| NFS 3, % | 20.1 a | 18.5 b | 17.8 b | 17.4 b | 19.0 ab | 23.1 a | 18.5 b | 14.1 c | 0.268 | 0.015 | <0.001 | 0.469 |
| SCC 4, (×103/mL) | 5217 | 5718 | 3398 | 9397 | 2117 | 4229 | 5132 | 6139 | 1.069 | 0.323 | 0.742 | 0.447 |
1 Colostrum samples obtained at 0 h (immediately after the birth of the first piglet), 6 and 24 h. 2 DM, dry matter. 3 NFS, non-fat solids. 4 SCC, somatic cell count. a–c Means within the same row with different superscripts differ significantly at p < 0.05.