Cellular composition of lymph nodes of parenchyma of lymph nodes of rabbits of meat direction

Keywords: lymphoid parenchyma; cytoarchitectonics; small, medium, large lymphocytes; macrophages; somatic and visceral lymph nodes; lymph nodulus.

Abstract

Intensive technologies for growing animals are accompanied by a decrease in the impact on them of biotic and abiotic factors and an increase in the dependence of the body on artificially created living conditions. An important criterion for the effectiveness of animal husbandry is animal health, which depends primarily on the state of their immune system, in particular the structural and functional state of the lymphoid organs. Lymph nodes are the peripheral organs of the lymphoid hematopoiesis and immunological protection, which are placed in the direction of passage of the lymphatic vessels, and function as biological filters of the lymph. Somatic (popliteal and submandibular) and visceral (caudal mesentericals and caudal mediastinal) lymph nodes of rabbits of the 90-day age in meat- producing. On histological preparations stained with azur II - eosin, cytoarchitectonics of separate functional zones of the parenchyma (units of the deep cortex (center, peripheral part), primary lymph nodes, lymph nodes with centers (light center, mantle zone) medullary cords were established. The lymph nodes of rabbits are represented by a cluster of compartments, which include structurally functional areas: paracortical, lymph nodes with adjacent parenchyma territories, and medullary cords that are distinguished by the specificity of cellular composition. Determined that the cytogram of individual functional areas of the lymph nodes differs depending on the localization of the lymph nodes (somatic or visceral). It has been found that the main cells of each functional zone of the parenchyma are lymphocytes (small, medium and large), plasma, reticular cells, macrophages and other cells. The main cell population in all functional areas is determined by lymphocytes 67.5–85.5 %. In both somatic and visceral lymph nodes the predominant forms are small lymphocytes, the total number of which ranges from 42 to 45 %.

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Abstract views: 426
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Published
2019-12-18
How to Cite
Gavrilin, P. M., & MyroshnychenkoІ. І. (2019). Cellular composition of lymph nodes of parenchyma of lymph nodes of rabbits of meat direction. Theoretical and Applied Veterinary Medicine, 7(4), 245-250. https://doi.org/10.32819/2019.74042