Hens immunogenesis organs morphology in extreme conditions of non-infectious aetiology

Henimmune organs morphological characteristics in extreme conditions of non-infectious aetiology - transport and low-temperature stress, limbs mechanical trauma, alimentary cachexiais studied in the article. The development of thymus accidental involution which degree depends on the extreme factor character and its influence duration is established. Lymphoid structures premature involution in bursa of Fabricius and spleen is defined.