Microstructural organization of the pancreas of a domestic pig

The mammalian pancreas is a gland of a mixed type of secretion. Its composition morphologically distinguishes two parts that perform different functions – exocrine and endocrine. In many diseases, there are pronounced disturbances in their work, which has a significant impact on the state of the body. Literature data concerning the microscopic organization of pancreatic tissues do not allow us to recreate a complete picture of its architectonics. The latter is necessary for understanding the physiological processes occurring in the body of animals and predicting the outcome of diseases associated with the defeat of this organ. Considering the above, we set a goal – to establish the features of the microstructural organization of the pancreas in a domestic pig. Pancreatic tissue samples obtained from five sexually mature meat-fed pigs at the age of eight months, during slaughter, were used for the research. The selected material was subjected to fixation in a 10.0% solution of neutral formalin during the day. Further processing of the selected samples in order to obtain histological sections of tissues was carried out according to generally accepted methods. based on histomorphological studies, it was found that the pancreas of a domestic pig by the type of its structure belongs to parenchymal organs, and by the type of its structural organization to complex alveolar-tubular glands. Two closely interacting parts were found in its composition. The first of them – exocrine – is represented by pancreatic acinuses and a system of excretory ducts. The second is endocrine – pancreatic islets (islets of Langerhans). At the same time, the exocrine part occupies a larger volume of the parenchyma of the organ, in comparison with the endocrine. Both of the above parts have clear morphological differences.

1. Drozdova, L. I. Morphogenesis of the pancreas of sows with an industrial type of feeding and maintenance / L. I. Drozdova, L.I., A.V. Puzyrnikov // In the collection: Topical issues of veterinary medicine. Materials of the International scientific and Practical conference dedicated to the 100th anniversary of the Department of Veterinary Microbiology, Infectious and Invasive Diseases of the Faculty of Veterinary Medicine of the IVMiB. Omsk, 2020. pp. 292-300.

2. Zelenevsky, N. V. International veterinary anatomical nomenclature in Latin and Russian. Nomina Anatomica Veterinaria : textbook / N. V. Zelenevsky. Saint Petersburg : Lan, 2013. – 400 p.

3. Pilov, A. H. Changes in the structure of the thyroid gland in sheep under endemic conditions / A. H. Pilov, A.V. Prusakov, A.V. Yashin, V. D. Radnatarov // Bulletin of the Buryat State Agricultural Academy named after V.R. Filippov. 2021. No. 4 (65). pp. 77-83.

4. Repina, E. F. Morphological changes in the structure of the pancreas of experimental animals under toxic effects and preventive correction / E. F. Repina, G. V. Timasheva, N. Y. Khusnutdinova, S. S. Baygildin, D.O. Karimov, G. F. Mukhammadieva, Ya. V. Valova, L. A. Musina // Occupational medicine and human ecology. 2021. No. 3 (27). pp. 143-152.

5. Smirnova, E. M. Methodology of statistical analysis in research on veterinary morphology / E. M. Smirnova, N. V. Zelenevsky, A. V. Prusakov // Hippology and veterinary medicine. 2021. No. 1 (39). pp. 172-177.

6. M. Stekolnikov, A. A. Horse anatomy : textbook for university students studying in the specialty 36.05.01 Veterinary Medicine (qualification "veterinarian"); in the areas of training 36.03.01 VSE (qualification (degree) "bachelor"); in the field of training 36.03.02 Animal science (qualification (degree) "bachelor") / A. A. Stekolnikov, F. I. Vasilevich, N. V. Zelenevsky, I. B. Duguchiev, M. V. Shchipakin, A.V. Prusakov; under the general editorship of N. V. Zelenevsky. – Saint Petersburg : Prospect Nauki, 2018. – 592 p. – ISBN 978-5-906109-78-1.

7. Yashin, A.V. Non-infectious pathology of cattle in farms with industrial technology/ A.V. Yashin, A.V. Prusakov, I. I. Kalyuzhny, S.P. Kovalev, S. N. Kopylov, V. N. Dinisenko, V. D. Radnatarov, A. A., Elenshleger, G. V. Klyakov// textbook for SPO. Saint Petersburg: Lan, 2021. – 220 p.