Zaheer Ahmed, S. Inayat, K. Naeem and S.A. Malik
International Journal of Poultry Science 2 ( 6 ): 449 - 453 , 2003
J. Z. Khawaja, K. Naeem, Z. Ahmed and S. Ahmad
International Journal of Poultry Science 4 ( 1 ): 39 - 43 , 2005