Table 5.
Effects of replacing medical zinc oxide with different ratio of inorganic:organic zinc or reducing crude protein diet with mixed feed additives on blood profiles in weaned piglets.
| Treatment | CON | T1 | T2 | T3 | T4 | T5 | SE | p-Value |
|---|---|---|---|---|---|---|---|---|
| Inorganic:Organic Zinc | 0 | 1000:0 | 850:150 | 700:300 | 500:500 | LP + MFA | ||
| Red blood cell, 106/μL | 6.90 | 6.86 | 6.97 | 6.56 | 6.44 | 6.24 | 0.27 | 0.328 |
| White blood cell, 103/μL | 18.2 | 17.9 | 18.8 | 19.6 | 22.1 | 22.3 | 2.5 | 0.731 |
| Lymphocyte, % z | 66.9 | 68.1 | 64.3 | 63.6 | 68.3 | 67.8 | 4.5 | 0.959 |
| Monocyte, % | 3.0 | 3.0 | 2.3 | 6.6 | 4.9 | 4.5 | 1.2 | 0.084 |
| Eosinophil, % | 0.84 | 0.85 | 1.18 | 1.16 | 1.28 | 0.76 | 0.27 | 0.657 |
| Basophil, % | 0.88 | 0.78 | 0.90 | 0.74 | 0.58 | 0.72 | 0.16 | 0.746 |
| Immunoglobulin G, mg/dL | 169.6 | 171.5 | 157.4 | 201.2 | 162.4 | 178.4 | 25.5 | 0.865 |
| Cholesterol, mg/dL | 80.4 | 80.8 | 85.4 | 74.0 | 87.2 | 85.0 | 5.4 | 0.561 |
| Glucose, mg/dL | 110.6 | 108.8 | 123.2 | 99.4 | 115.6 | 99.4 | 5.6 | 0.143 |
| Blood urea nitrogen, mg/dL z | 6.40 b | 6.20 b | 6.60 ab | 7.40 a | 6.60 ab | 5.20 c | 0.29 | 0.011 |
| Zinc, ug/dL x, z | 81.4 c | 142.3 a | 113.3 b | 109.0 b | 106.0 b | 79.7 c | 9.4 | 0.001 |
Abbreviation: CON, no additional added zinc oxide in diet; T1, CON +1000 mg zinc oxide; T2, CON + inorganic:organic zinc 850:150 mg/kg; T3, CON + inorganic:organic zinc 700:300 mg/kg; T4, CON + inorganic:organic zinc 500:500 mg/kg; T5, low-CP diet + 0.1% essential oil + 0.08% protease + 0.02% xylanase; SE, standard error. a–c Means within column with different superscripts differed significantly (p < 0.05). x contrast: CON vs. other treatments (p < 0.05). z Contrast: T4 vs. T1, T2, and T3 (p < 0.05).