A comparative study of the antigenic properties of tissues in animals of various species at different stages of development

Summary Antigenic properties of the heart tissues of chicken embryo of 5, 6, 12, 14, 18 days, of mature chickens, reptiles (Naotrix natrix) and amphibia (Rana ridibunda) were comparatively studied by the complement fixation test. With the development of the chicken embryo antigenic properties of the heart tissues approach more and more those of the mature chicken. In the more early embryonic periods they resemble those of the grass snake and frog. With the development of the chicken embryo this similarity becomes less and less pronounced.Presented by N. N. Zhukov-Verezhnikov, Active Member of the USSR Academy of Medical Sciences