Kharchenko L. The regularities of digestive system's morphofunctional organization in birds with different trophic specializations.

The objects are within the Aves of various taxonomic and trophic groups. The aim is to study the general regularity of morphofunctional organization of digestive system's within the Aves with different trophic specializations in aspect of adaptation to flight, type of a feed and a forage getting stereotype. The methods are anatomical, macro - microscopical, morphometrical, histological, histochemical, biochemical, statistical. The complex research (anatomical, histological, embryonic, biochemical) of digestive system's morphofunctional organization in birds with different trophic specializations is presented in thesis in comparative aspect. The significance of most important groups of factors connected with the peculiarities of locomotion - flight, feeding and foraging behavior, which influenced in the process of evolution the formation of digestive system's morphological organization in birds, is theoretically considered. Special attention is paid to detecting compensatory factors in birds' digestivesystem structure. The spheres of use are poultry-farming and training courses.