8Anthony N P,BalogJ M,Staudinger F B,et al.Effect ofa urease inhibitor and ceiling fans on ascites in broilers[J].Poultry Science, 1994,73:801 - 809.
9Mahadewn, Sauer F ,Erfle J D.Studies on bovine bacterial urease [J] J Anim Sci, 1976,42:745.
10Piatkowski B,Voigt J.Effect of phosphoric phenyl ester diarnide as inhibitor of the rumen urease of dairy cows.4.Feed intake and milk yield [J]. Archives Tierernahrung, 1981,31 : 181 - 185.
