E. O. Oviedo-Rondon, C. A. Fritts and P. W. Waldroup
International Journal of Poultry Science 1 ( 5 ): 119 - 126 , 2002
P. W. Waldroup and E. O. Oviedo-Rondon
International Journal of Poultry Science 1 ( 5 ): 106 - 113 , 2002