by using a slope-ratio bioassay model , the relative biological availability of endogenous and added zinc in milk-based formula was estimated to be 0.86 and that of soy-based formula 0.67 ( zinc sulphate = 1.00 ) with corresponding 95 % fiducial limits being 0.82 to 0.91 and 0.62 to 0.71 .
C0043481
zinc
C0078794
zinc sulphate