MORPHOLOGY ESOPHAGEAL TONSILS DUCKS BETWEEN 25 AND 120 DAYS

Анотація

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.