P. W. Waldroup, J. H. Kersey and M. T. Kidd
International Journal of Poultry Science 1 ( 4 ): 74 - 77 , 2002
A. Corzo, M. T. Kidd and S. C. Burgess
Journal of Animal and Veterinary Advances 3 ( 8 ): 517 - 521 , 2004