Tocopherol Concentration and Oxidative Stability of Milk from Cows Fed Supplements of d or dl-α-Tocopheryl Acetate

In a Latin square changeover feeding trial, cows were fed d - or dl -α-tocopheryl acetate at 0.0025% of tocopherol in the dry matter intake, which provided respective average daily intakes of α-tocopherol (and IU of vitamin E) of 400mg (596 IU) and 390mg (429 IU). The d supplement gave a significantly higher concentration ( µ g/g lipid) of tocopherols in the milk (P