Molybdenum and Copper Metabolism of Farm Animals

Abstract

IN a recent communication from Australia by Dick and Bull¹, the view was expressed that “an increase in the molybdenum content of the pasture may possibly explain the seeming anomaly of a copper deficiency in sheep, for example, grazing on pastures which show by ordinary chemical analysis a copper concentration within normal limits”. Since the references are to work in Britain in connexion with a disease of lambs known as swayback, the following may be of interest.