Age-related micromorphology of the thymus in broiler chickens

The organs of immunity have a leading place in increasing the resistance and stress resistance of animals. One of the central organs of immunogenesis in birds is the thymus. The article describes the macromorphology of the thymus gland in broiler chickens of the cross "Isa" (Habbard Isa JV) Ultra and Flex 1-, 7-, 14-, 21-, 41 - daytime ages. The dynamics of the absolute and relative mass of the thymus and age-related changes in linear parameters of the thymus in chickens are determined.