[The effect of Mecadox on the immune response and on various chicken lymphatic organs]

Through 35 days Mecadox was admixed to feed rations for chicken, 40 days of age, and inhibited immunogenesis which, generally, is reflected in lowering of antibody titre and gamma globulin level as well as in quantitative variation of the differential leucocyte count. Change of immune reactivity in chicken treated with Mecadox and deviation from the normal are attributable to changes in the organs which are responsible for immunological processes (thymus and bursa), such as reduction of ascorbic acid levels in the adrenal gland.