Морфологія білкового відділу яйцепроводу гусок великої сірої породи в період яйцекладки

Abstract

Наведені результати гістологічних досліджень яйцепроводу гусок великої сірої породи в період яйцекладки. Визначені морфометричні показники і гістоструктурні особливості стінки білкового відділу органа упродовж репродуктивного циклу птиці.

Macro-microscopic structure of the wall of albumen-secreting region of the large gray geese oviduct during oviposition was studied. Were studied the oviducts of clinically healthy goose 10, 11, 12, and 13 months of age. Samples of the albumen-secreting region of the oviduct were selected according to a single scheme, fixed by 10 % of neutral formalin (aqueous solution) and pouring in paraffin. Histologic slides were stained with hematoxylin and eosin (by the Mallory, Brach, Shiff reagent and altsian blue. Were detected a gradual decrease of mass and length of the oviduct. Correspondingly, the length of the albumen-secreting region was shortened. The dynamics of the wall thickness of albumen-secreting region was characterized by an increase in the indicators by 49,7 %. The thickening of wall was due to the muscular membrane. Correspondingly, the correlation between the mucous membrane and muscle membranes was changed accordingly. Were exposed full-blood vessels of the microcirculation. The own plate of the mucous membrane contained simple branched tubular glands. The goblet cells and albumen-secreting cells were located abreast to ciliated cells of the epithelial layer. With help of histochemical reactions were showed the formation of dense layer of egg protein by the secret of the own plate glands and cells of the enveloping epithelium of the albumen-secreting region. The high level of differentiation of the secretory elements of the mucous membrane of oviduct is associated with the forming of local protection. The dynamics of the structural elements of albumen-secreting region was correlated with the egg productivity of poultry. Maximum indices of development and secretion of the glandular apparatus of mucous membrane of the albumen-secreting region of geese oviduct indicate a high level of hyperplastic and hypertrophic processes in the organ's wall.