Table 6.
Effects of different forms of zinc oxide on the blood profiles of weaned piglets (n = 20).
| Zn, Status, and Level | CON | ZnO | Chelate -ZnO |
Nano -ZnO |
SE | p-Value |
|---|---|---|---|---|---|---|
| Items | 0 | 2500 | 200 | 200 | trt | |
| WBC, 103/μL | 27.5 | 20.1 | 23.5 | 23.0 | 2.4 | 0.253 |
| RBC, 106/μL | 7.9 | 7.8 | 8.2 | 7.9 | 0.3 | 0.806 |
| Lymphocyte, % | 73.4 | 62.9 | 62.2 | 61.5 | 3.7 | 0.160 |
| Monocyte, % | 0.5 | 0.6 | 2.15 | 0.6 | 0.4 | 0.461 |
| Neutrophil, % | 23.7 | 24.7 | 31.0 | 37.6 | 3.0 | 0.518 |
| IgG, mg/dL | 189.0 | 229.0 | 191.0 | 219.0 | 13.0 | 0.128 |
| IgM, mg/dL | 19.3 | 20.0 | 19.3 | 23.0 | 2.6 | 0.663 |
| Zinc, ug/dL y,z | 164.9 b | 235.5 a | 165.3 b | 175.8 b | 9.6 | 0.007 |
Abbreviation: CON, no additional added zinc oxide in diet (negative control); ZnO, CON + 2500 ppm zinc oxide (positive control); chelate-ZnO, CON + zinc chelate; nano-ZnO, CON + nanoparticle size of zinc; SE, standard error; RBC, red blood cell; WBC, white blood cell; IgG, immunogloblin G; IgM, immunogloblin M. a,b Means within a row with different letters are significantly different at p < 0.05. y contrast: ZnO vs. chelate-ZnO (p < 0.05). z contrast: ZnO vs. nano- ZnO (p < 0.05).