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1by Abdel-Aziz, A.S. (Cairo Univ., Giza (Egypt). Dept. of Animal Production), Egyptian Society of Animal Production, Cairo (Egypt) eng, Shafie, M.M., Barkawi, A.H., Ibrahim, S.A., Sadek, R.R., European Association for Animal Production, Rome (Italy) eng, International Office of Epizootics, Paris (France) eng
Published 1993Texto bibliotecaFAO IT