by Wahbah, M.A, Kotb, M.H, Farag, Y.A, Selim, A.M.S. (Ministry of Agriculture, Cairo (Egypt). Animal Reproduction Research Inst.)
Published in Zagazig veterinary journal (1996)

by El Chahidi A.A, Farag Y.A, Kholeaf Z.M
Published in Egyptian Journal of Veterinary Science (1983)

by Farag Y.A, Elchahidi A.A, Rakha A.M
Published in Egyptian Journal of Veterinary Science (1977)

by Aziz, M.A, El-Abdin, Y.Z, Farag, Y.A
Published in Egyptian journal of veterinary science (1975)

by El-Chahidi, A.A, El-Azab, A.I, Rakha, A.M, Farag, Y.A
Published in Egyptian journal of veterinary science (1979)

by El Chahidi A.A, Rakha A.M, El Azab A.I, Farag Y.A
Published in Egyptian Journal of Veterinary Science (1978)

by el Din Ibrahim, M.S, Farag, Y.A, Zein el Abdin, Y
Published in Egyptian journal of veterinary science (1977)

by Kholeaf Z.M, Farag Y.A, Rakha A.M, Abul Fadle W.S
Published in Egyptian Journal of Veterinary Science (1977)

by Ibrahim M.S, Farag Y.A, Zein El Abdin Y
Published in Egyptian Journal of Veterinary Science (1976)

by Aziz M.A, Zein El Abdin Y, Farag Y.A
Published in Egyptian Journal of Veterinary Science (1975)

by Kamel, A.M.R, Bassiony, M.M, Farag, Y.A. (Ministry of Agriculture, Cairo (Egypt). Animal Production Research Inst.), Farid, A
Published in Egyptian Journal of Agricultural Research (Egypt) (1996)

by Salem S.F, El Gibaly S.M, Farag Y.A, El Mola A.A, El Molla A.H
Year of Publication 1984

by Wahbah M.A, Rakha A.M, El Sergany M.A, Farag Y.A, Kholeaf Z.M
Published in Egyptian Journal of Veterinary Science (1981)

by Wassef N.A, Farag Y.A, Gouda F.F, El Sawah H.M, Saad Z
Published in Agricultural Research Review (1981)

by El-Chahidi, A.A, El-Azab, A.I, Rakha, A.M, Farag, Y.A. (Ministry of Agriculture, Cairo (Egypt). Animal Health Research Inst.)
Published in Egyptian Journal of Veterinary Science (Egypt) (1977)