Download MORPHOLOGY ESOPHAGEAL TONSILS DUCKS BETWEEN 25

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MORPHOLOGY ESOPHAGEAL TONSILS DUCKS BETWEEN 25 AND
120 DAYS
VT Khomych, Doctor of Veterinary Science SI USENKO, researcher
Morphometric parameters esophageal tonsil increases with age ducks. Lymphoid
tissue of the body in ducks all age groups represented all levels of structural
organization, indicating its full morphofunctional maturity. Area immune formations in
the esophageal mucosa tonsil with age ducks decreases. Content diffuse lymphoid
tissue to 30-day age increases, and in older birds - is reduced. With increasing age
ducks content peredvuzlykiv and primary lymphoid nodules and reduced secondary
contrary - increases.
Ducks, immune formation, esophageal tonsils,
peredvuzlyky, primary and secondary lymphoid nodules.
diffuse
lymphoid
tissue
All immune formation, are associated with the mucous membrane of the digestive
system, including esophageal tonsils (SM) birds belonging to the peripheral immune
organs. Under the influence of the mucous membrane antigen immune formation ready
to make a local immune defenses and inform the body of the features of these antigens.
Under their influence, T- and B-cells in these organs are differentiated on effector cells,
which provide specific immunity [3, 4].
Structure and development of CM relatively well studied in chickens [2, 7].
Species-bridge this formation in other species of domestic birds isolated, incomplete
and contradictory [5, 6]. Data on the formation of esophageal tonsil ontogeny ducks in
the literature available to us we have found.
The aim - to study the morphology of esophageal tonsil ducks between 25 and
120 days.Morphometric indexes of an esophageal tonsil increase with age of ducks.
Lymphoid tissue of this organ in all age groups of birds is presented by all levels of
structural organization that testifies to its full morphological and functional maturity. The
area of lymphoid tissue in a mucosa of an esophageal tonsil decreases with age of
ducks. The content of diffuse lymphoid tissue increases to 30 day age, and at elder bird
– decreases. The content of prenodules and primary lymphoid nodules decreases, and
secondary on the contrary – increases with age of ducks.
Ducks, immune educations, esophageal almond, diffusion lymphoid fabric,
prenodules, primary and secondary lymphoid nodules.