(a) Haptoglobin blood concentrations in weaned pigs fed with or without b-glucan (25 animals per group) at the beginning (left columns) and at the end (right columns) of the experiment (means ± SD). Mean values sharing the same letter are not different (p > 0.05). Fig. 1 (b) Weekly recordings of haptoglobin blood concentrations from weaned pigs fed with or without b-glucan (4 animals per group, means ± SD). Mean values sharing the same letter are not different (p > 0.05)