Because the pancreas is relative to most animals including humans, the goal of this comparative study was to investigate the features and histological structure of three species of ruminants' pancreas. Hematoxylin and eosin combined and Periodic Acid Schiff stain were used to stain the tissue samples using the paraffin procedure. The pancreas is surrounded by a thin connective tissue capsule composed primarily of blood vessels and a few collagen fibers, as well as adipose tissue, which contributes a significant amount to the septa. Tubulo-acinar units with centero-acinar cells were separated by a thin connective pad to make up the exocrine secretory units. They are made up of simple pyramidal cells that converged toward a central narrow lumen and rested on a basal lamina supported by thin fibers. The intercalated duct, intralobular duct, and interlobular duct are the three types of ducts in the pancreas. The Langerhans islets appear as a pale region within the secretory units, oval or irregular in shape, with some being small and others being enormous. In various species, physical variances in the distribution of endocrine cells may result in differences in the requirement for and interaction of hormones with one another.

Camel; Cow; Sheep; pancreas; beta cells; glucagon; insulin; islet cells.