TY - BOOK AU - Idris,Attia Amin Mohamed TI - Effect of injection of vitamin A and testosterone on the sexual behaviour and semen qualities of buffalo and friesian bulls PY - 1977/// KW - Vitamin A KW - Physiological effect KW - Testosterone KW - Sexual behavior in animals KW - Bulls KW - Physiology N1 - Thesis (M.S)--Cairo University, 1977; Includes bibliographical references (leaves 130-153); Microfiche; ASUNET; Ain Shams University; 3 microfiches : negative ER -