Fig. 5.

Histological analysis of porcine jejunum as influenced by weaning age. Results show representative jejunal sections from 35-day-old pigs previously subjected to different weaning ages. A: weaning at 15 days old. B: weaning at 18 days old. C: weaning at 23 days old. D: lamina propria cell counts. Notice the increased cellularity of the lamina propria in jejunum from early-weaned pig compared with jejunum from pigs weaned at older ages. Values are means ± SE (n = 6 pigs per weaning age treatment). ^a,b,cSignificantly different (P < 0.05) by ANOVA.