Figure 1.
Figure 1.

Plot of predicted serum 25(OH)D3 response to daily vitamin D3 intake of gestating sows (Exp. 1) based on the observed serum 25(OH)D3. The equation used for predicted values was serum 25(OH)D3, ng/mL (±SE) = 35.1746 ± 5.56 + (0.002353 ± 0.00024 × dietary vitamin D3, IU/d) − (0.0000000156 ± 0.0000000034 × dietary vitamin D3, IU/d2).