Figure 1

Serum VA concentrations decreased immediately prior to parturition in gestating gilts. A Schematic diagram of the experimental design showing gilt PEDV infection and sample time points at post-infection day (PID) 0 [gestation day (GD) 96–97], 6–8 (GD 102–105) and 13–17 (GD 109–114) and B piglet PEDV challenge at 3–5 post-partum day (PPD) and sample time points at PPD 3–5 [PCD (post-challenge day) 0], PPD 8–14 (PCD 5–9), PPD 15–22 (PCD 12–17) and PPD 24–34 (PCD 21–29). C Pooled serum VA concentrations (ng/mL) in gilts pre and post-partum. Statistical analysis was performed using the two-way ANOVA with repeated measures and Bonferroni’s correction for multiple comparisons. Data are mean ± SEM.