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. 2001 Mar 31;42(1):139–150. doi: 10.1186/1751-0147-42-139

Figure 3.

Figure 3

Serum concentrations of vitamins A and E (mg/l, LSM ± SEM) in blood samples taken one month before expected calving (-1), at calving (0), and one month after calving (+1) from ten dairy cows. Samples with different letters within each parameter differ significantly (p < 0.05).