TABLE 6.
Multiple linear equation of different Zn sources a .
| Age | Dependent variable | Regression equation b | R 2 | p-value |
|---|---|---|---|---|
| Day 7 | Tibia Zn | Y = 257 + 11.70X1 +13.55X2 + 10.01X3 | 0.739 | <0.001 |
| Pancreas Zn | Y = 57.7 + 1.088X1 +1.365X2 + 1.077X3 | 0.598 | <0.001 | |
| Pancreas MT | Y = 2.57 + 0.312X1 +0.556X2 + 0.451X3 | 0.620 | <0.001 | |
| Pancreas MT mRNA | Y = 0.97 + 0.066X1 +0.074X2 + 0.065X3 | 0.710 | <0.001 | |
| Day 14 | Tibia Zn | Y = 348 + 1.578X1 +1.730X2 + 1.348X3 | 0.678 | <0.001 |
| Pancreas Zn | Y = 37.1 + 0.257X1 +0.294X2 + 0.259X3 | 0.421 | <0.001 | |
| Pancreas MT | Y = 1.79 + 0.059X1 +0.093X2 + 0.074X3 | 0.747 | <0.001 | |
| Pancreas MT mRNA | Y = 1.14 + 0.076X1 +0.121X2 + 0.068X3 | 0.579 | <0.001 |
MT, metallothionein.
a
The regression analyses were based on all observations in different treatments (n = 8 for each treatment).
b
Y represents respective dependent variable, including tibia Zn (μg/g, ash basis), pancreas Zn (μg/g, fresh basis), pancreas MT (ng/g protein), or pancreas MT mRNA abundance (relative fold-change); X1, X2, and X3 represent supplemental Zn intake (mg) from zinc sulfate (ZnSO4), zinc-bismethionate (Zn-Met), and zinc-bisglycinate (Zn-Gly), respectively.