TY - DATA AU - Youssef,Ahmed Mohammed Mohammed Dief TI - Effect of ultraviolet exposure on productive, reproductive, physiological performance and immune response of laying Hens CY - 2021. KW - Hens KW - Physiology KW - Ultraviolet lamps KW - Ultraviolet radiation KW - Physiological effect KW - Immunology KW - Effect of ultraviolet radiation on KW - Eggs KW - Quality N1 - Thesis (Ph.D.) -- Ain Shams University, 2021; Includes bibliographical references (Leaves 80-97) UR - http://nile.enal.sci.eg/thesis/6364.pdf ER -