The Effect of Mixed Tocopherols on Milk and Butterfat Production of the Dairy Cow

Abstract

An experiment was set up in which a preparation containing 1 gm of mixed tocopherols was fed to milch cows to determine its effect upon milk and butterfat production. The results indicate definitely that the inclusion in the ration of 1 gm of mixed tocopherols per cow daily does not influence the milk or butterfat yield, and neither does it affect the per cent of butterfat present in the milk. These data do not substantiate the work of Harris et al. ('47), at least when the mixed tocopherols are fed under the conditions prevailing during the present experiment.