M.M. Fathi, A. Zein El-Dein, S.A. El-Safty and Lamiaa M. Radwan
International Journal of Poultry Science 6 ( 4 ): 236 - 241 , 2007
E.A. Deif, A. Galal, M.M. Fathi and A. Zein El-Dein
International Journal of Poultry Science 6 ( 12 ): 901 - 911 , 2007
Kh. Roushdy, A. Zein El-Dein, M.M. Fathi, U.M. Ali and Heba M. Assy
International Journal of Poultry Science 7 ( 11 ): 1045 - 1053 , 2008