As shown in Table 3, there was a challenge by SIDT interaction
(g/kg body weight) (Fig. 1A). Increasing dietary SIDT increased the
while the relative body weight of challenged piglets was not affected by SIDT. E. coli challenge had no significant effect on the spleen and thymus gland weight or their relative body weight. The thymus weight of piglets fed 7.5 and 11.1 g/kg SIDT increased significantly (P