Table 4.
Effects of dietary substitution of ZnSO4 by low levels of ZnMet on serum metabolites and hematological indices of 37- to -79-d-old piglets 1.
| Item | Control | ZnSO4+ZnMet, mg/kg | SEM | p-Value | p-Value | ||||
|---|---|---|---|---|---|---|---|---|---|
| 100 + 0 | 75 + 12.5 | 50 + 25 | 25 + 37.5 | 0 + 50 | Linear | Quadratic | |||
| TP, g/L | 56.04 | 57.02 | 57.52 | 55.74 | 60.20 | 0.755 | 0.533 | 0.129 | 0.224 |
| ALB, g/L | 35.95 | 36.44 | 34.62 | 34.82 | 36.42 | 0.549 | 0.661 | 0.838 | 0.545 |
| BUN, mmol/L | 3.28 | 3.52 | 3.72 | 3.86 | 3.54 | 0.123 | 0.748 | 0.120 | 0.042 |
| ALP, IU/L | 82.17 | 82.00 | 81.83 | 80.33 | 84.20 | 2.117 | 0.986 | 0.811 | 0.830 |
| TG, mmol/L | 0.26 | 0.21 | 0.25 | 0.21 | 0.19 | 0.019 | 0.712 | 0.135 | 0.337 |
| LDH, IU/L | 563 | 570 | 577 | 577 | 588 | 18.214 | 0.587 | 0.171 | 0.407 |
| WBC, 109/L | 6.36 b | 6.78 ab | 7.54 a | 6.88 ab | 6.76 ab | 0.122 | 0.041 | 0.433 | 0.044 |
| LYM, 109/L | 2.29 b | 2.46 b | 3.05 a | 2.24 b | 2.07 b | 0.078 | 0.021 | 0.423 | 0.045 |
| MID, 109/L | 1.32 | 1.36 | 1.28 | 1.32 | 1.30 | 0.072 | 0.997 | 0.992 | 0.992 |
| GRA, 109/L 2 | 3.76 | 3.64 | 3.84 | 3.56 | 3.44 | 0.062 | 0.190 | 0.078 | 0.121 |
a, b Means within a row with different superscripts differ significantly (p < 0.05). 1 Values are means and pooled SEMs, n = 7. 2 TP, total protein; ALB, albumin; BUN, blood urea nitrogen; ALP, alkaline phosphatase; TG, triglyceride; LDH, lactic dehydrogenase; WBC, white blood cell; LYM, lymphocyte; MID, intermediate cell; GRA, granulocyte.