Table 4. Effect of dietary supplementation of salicylic acid additive on blood profile in lactating sows
| Items | CON | TRT1 | SEM | p-value |
| Initial |
| Red blood cell (106/μL) | 6.8 | 6.7 | 0.30 | 0.372 |
| Fe (μg/dL) | 152.2 | 143.8 | 6.00 | 0.298 |
| Hb (mg/dL) | 12.9 | 12.4 | 0.48 | 0.282 |
| Hematocrit (%) | 48.1 | 47.9 | 1.42 | 0.170 |
| TIBC (μg/dL) | 566.2 | 550.8 | 9.22 | 0.068 |
| After farrowing |
| Red blood cell (106/μL) | 6.6 | 5.9 | 0.45 | 0.186 |
| Fe (μg/dL) | 150.8 | 164.8 | 21.00 | 0.525 |
| Hb (mg/dL) | 12.8 | 12 | 0.57 | 0.191 |
| Hematocrit (%) | 40.3 | 42.6 | 6.06 | 0.709 |
| TIBC (μg/dL) | 521 | 474.2 | 62.29 | 0.078 |
| Finish |
| Red blood cell (106/μL) | 6.8 | 5.9 | 0.80 | 0.538 |
| Fe (μg/dL) | 114.5 | 141.8 | 18.00 | 0.147 |
| Hb (mg/dL) | 13.3 | 12.2 | 1.40 | 0.675 |
| Hematocrit (%) | 50.5 | 43.9 | 5.30 | 0.502 |
| TIBC (μg/dL) | 505 | 443.8 | 34.00 | 0.044 |
CON, corn soy bean meal based basal diet; TRT1, basal diet supplement with 0.05% SA; Fe, iron; Hb, hemoglobin; TIBC, total iron binding capacity; SA, salicylic acid.