C.E. White, F.D. Lopez and L.R. McDowell
Journal of Animal and Veterinary Advances 3 ( 2 ): 74 - 80 , 2004
D.O. Umesiobi, U. Kalu, U. Ogundu, M.U. Iloeje, D.C. Anyanwu and L.R. Mcdowell
Journal of Animal and Veterinary Advances 3 ( 2 ): 81 - 84 , 2004
G. Valle, L.R. McDowell, D.L. Prichard, P.J. Chenoweth, D.L. Wright, G. Martin, W.E. Kunkle and N.S. Wilkinson
Journal of Animal and Veterinary Advances 2 ( 6 ): 338 - 342 , 2003