Fig. 3

Effects of fiber sources on serum immunoglobulins in sows. a-b Serum immunoglobulins on d 110 of gestation and d 21 of lactation. Date were presented as mean ± SEM, n = 6. Different letters mean significant differences (P < 0.05). IgA, immunoglobulin A; IgG, immunoglobulin G; IgM, immunoglobulin M; CON, control diet; SBP, sugar beet pulp diet; WB, wheat bran diet