Histological and histochemical studies on the small intestine of domestic pig (Sus scrofa domesticus)
| dc.contributor.advisor | Gahlot, Parveen Kumar | |
| dc.contributor.author | Deswal, Navreet | |
| dc.date.accessioned | 2024-03-19T12:15:33Z | |
| dc.date.available | 2024-03-19T12:15:33Z | |
| dc.date.issued | 2023-06-06 | |
| dc.description.abstract | Ten pigs of 8 to 10 months of age were used to study the histology and histochemistry of the small intestine. The villi were of different shapes and sizes were present throughout the length of small intestine. They were short and leaf shaped in initial portion of the intestine but gradually increased in height and was finger shaped towards the jejunum and again gradually decreased in height towards the ileo-caecal junction. The epithelium was simple columnar with goblet cells. The number of goblet cells increased towards ileum. Histochemical studies of the goblet cells in the epithelium showed presence of glycogen and both acidic and neutral mucopolysaccharides but there was predominance of acidic mucopolysaccharides. Hyaluronic acid and sialmucins were also demonstrated in goblet cells by Alcian blue stain (pH 2.5). The enterochromaffin cells were present in all segments of intestine and there number was more in cranial duodenum.. The intestinal glands were simple tubular gland lined with columnar epithelium and were consisted of columnar, goblet, enterochromaffin cells. The intestinal glands showed presence of glycogen and both acidic and neutral mucopolysaccharides but there was predominance of acidic one especially in goblet cells. The activity towards the Alcian Blue was also strong in intestinal glands of the small intestine. The Brunner’s glands were tubulo-alveolar and mucus in nature. They were present in submucosa of duodenum and there number was decreased from cranial to caudal portion of duodenum. Histochemical studies of Brunner’s glands showed moderate to strong reaction with the PAS but the reaction was strong towards the luminal surface for neutral mucosubstance. Brunner’s glands also showed weak activity towards alcian blue stain. The lymphoid nodules were present on the anti-mesenteric part of the intestine. These lymphatic nodules were locate from caudal jejunum to all segments of ileum. The lymphatic nodules or Peyer’s patches were of various shapes and sizes. Their shape varied from round to oval but their size mostly small to medium. The Peyer’s patches along with follicle associated epithelium (FAE) were observed in caudal jejunum and entire ileum. The lymphatic nodules were having lightly germial center packed with lymphocytes, lymphoblasts, macrophages and plasma cells. The darkly stained peripheral zone called corona was having densely packed lymphocytes. | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810207566 | |
| dc.language.iso | English | |
| dc.pages | 72 + v | |
| dc.publisher | LUVAS Hisar | |
| dc.sub | Veterinary Anatomy | |
| dc.theme | Histological and histochemical studies on the small intestine of domestic pig (Sus scrofa domesticus) | |
| dc.these.type | M.V.Sc. | |
| dc.title | Histological and histochemical studies on the small intestine of domestic pig (Sus scrofa domesticus) | |
| dc.type | Thesis |