Lymphoid tissue of the Peyer's patch of the duck ileum
Journal Title: Бюлетень "Ветеринарна біотехнологія" - Year 2018, Vol 32, Issue
Abstract
Introduction. Lymphoid tissue is associated with tunica mucosa of the digestive canal forming immune formation. They are one of the first components of immune protection, constantly exposed to the antigens that enter into the animals’ organism with food and water. In immune (lymphoid) organs of the digestive canal of waterfowl (geese, musky ducks), lymphoid tissue can be located not only in their tunica mucosa, but also in tunica muscularis and tunica serosa. 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 goal of the work was to study the peculiarities of localization of lymphoid tissue in the Peyer’s patch of the ileum of ducks. Materials and methods. The samples for the study were taken from broiler ducks of the Blagovarskiy cross at the age of 1, 5, 10, 15, 20, 25, 30, 60, 90, 120, 150, 180, 210, 240 days (4–6 ducks of each age). The ducks were kept in conditions close to the industrial complexes and fed with standard feed in accordance with the age. Ducks were not vaccinated against infectious diseases. Result of research and discussion. Only one Peyer’s patch is defined in a duck ileum. Its length increases to 120-day-old birds (1.49 ± 0.06 cm), and the largest width – up to 150-day-old (1.26±0.05 cm). Lymphoid tissue, which determines the functional features of immunogenesis organs, in the Peyer's patch of the ileum appears from the one-day age of ducks. Its maximum development is noted at the 210-day age of the bird (71.64 ± 1.03%). The presence of all levels of the structural organization of lymphoid tissue including the diffuse lymphoid tissue, prenodules form, primary and secondary lymphoid nodules, 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 the Peyer's patch of ileum is reached in the 20-day-age duck. Conclusions and prospects for further research. 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 ileum is reached in the 20 days-age of duck.
Authors and Affiliations
Tatyana Mazurkevych, Iryna Vyshkovska, Natalia Hudz
Keywords
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- EP ID EP406057
- DOI 10.31073/vet_biotech32(2)-43
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