Abstract
Currently, the occurrence of diseases in the digestive system in swine has increased. Environmental stress and gastric bacteria were associated with body imbalance and stress ulcer, which are related to pathological changes in the stomach. This study aimed to investigate stomach histological characteristics of beta-agonist free, hygienic, and natural swine in different farming methods. Three types of swine’s stomachs were bought from three different farms. The samples in each part of the stomach, including the fundus, body, antrum, and pylorus, were processed through histopathological techniques and dyed with haematoxylin and eosin. The results showed that in the fundus of the stomach, beta agonist-free swine had the thinnest mucosa and submucosa layers with the highest number of inflammatory cells in both layers (p < 0.001, all). The hygienic swine showed thehighest amount of red blood cells in the body, antrum, and pylorus of the stomachs (p < 0.001). In conclusion, we showed the histological characteristics of stomachs in three kinds of swine, which presents swine stomach health status. This could be information for consumers.