Table 5.
Effects of dietary supplementation of different selenium sources and levels on serum biochemical indexes of laying hens.
| Parameters | Basal Diet | SY-L | SY-H | SS-L | SS-H | P-Values | ||
|---|---|---|---|---|---|---|---|---|
| S | L | S × L | ||||||
| ALB, g/L | 24.58 ± 1.74 | 25.80 ± 4.67 | 26.52 ± 4.28 | 24.08 ± 2.95 | 25.90 ± 2.38 | 0.453 | 0.410 | 0.712 |
| TP, mg/ml | 54.71 ± 3.13 | 58.17 ± 7.75 | 59.75 ± 5.71 | 55.56 ± 3.89 | 57.45 ± 3.32 | 0.302 | 0.144 | 0.450 |
| BUN, mmol/L | 5.32 ± 1.12 | 5.55 ± 0.66 | 5.75 ± 0.29 | 5.42 ± 1.24 | 5.35 ± 1.10 | 0.589 | 0.818 | 0.931 |
Note: SY-L, 0.3 mg/kg selenium yeast; SY-H, 0.5 mg/kg selenium yeast; SS-L, 0.3 mg/kg sodium selenium; SS-H, 0.5 mg/kg sodium selenium; ALB, albumin; TP, total protein; BUN, blood urea nitrogen; S, selenium sources; L, selenium levels; S × L, the interaction of selenium sources and levels.