8AUcn P C, Danforth H D, Morrid V L, et al. Interaction of dietary flaxsecd with coccidia infections in chickens[J]. Poultry Science, 1997,76:822-827.
9Danforth H D, Allen P C , Levander O A. The effect of highn-3 fatty acid diets on the ultrastructural dcvelopment of Eimeria tenella [J]. Parasitol Res, 1997, (83):440-444.
10Allen P C, Danforth H D, Augustine P C. Dietary modulation of avian coccidiosis[J]. Int J Parasitol, 1998,28:1131-1140.