6ChapmanHD, CherryTE, DanforthHD, etal.Sustainable coccidiosis control in poultry production :the role of live vaccines. Int J Parasitol, 2002, (32) :617-629.
7Wallach M G, MencherD, Yarus S,et al. Eimeria maxima:identification of gametocyte protein antigens.ExpParasitol, 1989, (68) :49-56.
8Wallach M, Halabi A, Pillemer G, et al.Maternal immn nization with gametocytes antigens as a means of provid ing protective immunity against Eimeria maxima in chickens Infect Immun, 1992,60(5):2 036-2 039.
9Wallach M. The development of a maternally-based,sub unit vaccine, COXABIC,against coccidiosis in chickens. Ⅷth International Coccidiosis Conference.Australia, 2002.1 481.
