Histochemical studies on gut associated lymphoid tissue of pig (Sus scrofa)

In the present study, in the duodenum, goblet cells and glands of lamina propria showed strong reaction for PAS-AB whereas glands of lamina propria and submucosa showed strong PAS reaction and the connective fibers of submucosa and lamina propria showed moderate reaction for PAS-AB. In the jejunum, the goblet cells of villous epithelium showed strong positive reaction for PAS and PAS-AB whereas glands of lamina propria also showed strong PAS-AB reaction. In ileum, goblet cells showed strong reaction to PAS and PAS-AB whereas glands of lamina propria, connective tissue of lamina propria and inter follicular connective tissue of submucosa showed strong positive reaction for PAS-AB and moderate reaction to PAS. In ileocaecal patch, colon, rectum, the glands of lamina propria showed strong reaction for PAS and PAS-AB and the connective tissue of lamina propria and submucosa of ileocaecal patch and connective tissue of submucosa of rectum showed moderate reaction for PAS-AB. But, other areas were devoid of acid mucopolysaccharides in the colon in the present study.