Vol. 8, Special Issue 2, Part E (2024)

Abstract: In this research, the stomach of pigs in all postnatal groups was a "C" shaped organ with two curvatures viz., greater and lesser, and a conical diverticulum projecting caudally. Stomach mucosa showed four distinct zones i.e., pars oesophagea, cardiac, fundic, and pyloric regions which were visible from 21 days onwards. The internal surface had rugae seen from group I onwards. Pars oesophagea, was whitish followed by a light grey colored cardiac region. The fundic region appeared reddish-brown and lacked mucosal folds, while the pyloric region was pinkish-white with few mucosal folds and a prominent bulge known as "torus pyloricus."This study revealed that the mean length of greater, lesser curvatures, and average width of the flaccid stomach, increased with age. In G-I, II, and III, the width at fundic region was higher than the cardiac diverticulum and pyloric sphincter. The average weight of a flaccid stomach and the capacity of the stomach showed an increase with age. Overall, the size of the stomach increases in all age groups for weight, volume, and length. Studied.