Ontogenesis of the bursa of fabrisicusin broiler chickens

Studies of the fabricia bag, conducted in healthy chickens of the cross "Isa" (HabbardIsa JV) Flexi Ultra of the production stock of birds on 1, 7, 21, 41 days of development, showed that in ontogenesis there are periodic changes in the morphology of the organ. At maturation of the bird there is an increase in the size of lymph nodes, as well as differentiation of cell reproduction centers in them.