Table 7. Immune responses of weaned pigs from sows fed diets supplemented with spray-dried plasma1).
| Item | Dietary treatments | SEM | p-value | |
|---|---|---|---|---|
| CON2) | SDP2) | |||
| Day 1 postweaning | ||||
| WBC (× 103/μL) | 12.91 | 13.42 | 1.46 | 0.412 |
| TNF-α (pg/mL) | 320.24 | 358.90 | 57.21 | 0.847 |
| TGF-β1 (pg/mL) | 1,121.44 | 1,077.46 | 117.21 | 0.765 |
| CRP (ng/mL) | 87.53 | 76.54 | 14.94 | 0.546 |
| Cortisol (ng/mL) | 1.34 | 1.18 | 0.10 | 0.387 |
| Day 3 postweaning | ||||
| WBC (× 103/μL) | 16.09 | 13.44 | 2.20 | 0.341 |
| TNF-α (pg/mL) | 449.80 | 344.11 | 38.32 | < 0.10 |
| TGF-β1 (pg/mL) | 1,071.75 | 1,024.15 | 158.32 | 0.687 |
| CRP (ng/mL) | 126.60 | 103.58 | 17.30 | 0.541 |
| Cortisol (ng/mL) | 1.88 | 1.40 | 0.16 | < 0.05 |
| Day 7 postweaning | ||||
| WBC (× 103/μL) | 16.95 | 16.15 | 1.25 | 0.741 |
| TNF-α (pg/mL) | 388.84 | 370.12 | 41.89 | 0.601 |
| TGF-β1 (pg/mL) | 836.48 | 718.33 | 41.89 | < 0.05 |
| CRP (ng/mL) | 112.28 | 78.41 | 15.50 | < 0.10 |
| Cortisol (ng/mL) | 1.74 | 1.56 | 0.11 | 0.230 |
1)
Values are presented as the least squares mean of 6 replicates.
2)
CON, control sow diet based on corn and soybean meal; SDP, CON + 1% spray-dried plasma.
WBC, white blood cells; TNF-α, tumor necrosis factor-α; TGF-β1, transforming growth factor-β1; CRP, C-reactive protein.