Lymphoid tissue of the peyer's patch of the duck duodenum

Authors

  • О. V. Pʼyatetska National University of Life and Environmental Sciences of Ukraine image/svg+xml
  • T. A. Mazurkevych National University of Life and Environmental Sciences of Ukraine image/svg+xml

Abstract

Mucous associated lymphoid tissue has a special place in the immune system, forming the first protective barrier against antigens that enter the body with food and air. In this context, the localization of lymphoid tissue and its structure in the immune formations of the intestinal wall of waterfowl requires a more detailed study. The aim of the research was to study the peculiarities of localization of lymphoid tissue in the Peyer's patch of the duodenum. Accepted methods of morphological studies were used to perform the work.

Only one Peyer’s patch is defined in a duck duodenum. Its length and largest width increased to 150-day-old birds and are respectively 2,4 ± 0,06 and 1,20 ± 0,03 cm. Lymphoid tissue, which determines the functional features of immunogenesis organs, in the Peyer's patch of the duodenum appears from the one-day age of ducks. Its maximum content is noted at the 150-day age of the bird (56,86 ± 0,95 %). The presence of all levels of the structural organization of lymphoid tissue testifies to its morphofunctional maturity, that is, the ability to give a complete immune response to the action of antigen. The complete morphofunctional maturity of the lymphoid tissue of Peyer's patch of duodenum is reached in the 15 days-age of duck.

Keywords: ducks, intestine, small intestine, duodenum, Peyer’s patch, lymphoid tissue, diffuse lymphoid tissue, prenodules, primary lymphoid nodules, secondary lymphoid nodules

References

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Published

2017-12-01

Issue

No. 273 (2017)

Section

Article

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