Implications of Restricting Cows to a Clover-free Diet in Order to Reduce the Strontium Content of Milk

Abstract

VOSE and Koontz¹ have suggested that because mixed legume-grass herbage contains a higher level of strontium than grass it would be desirable to restrict dairy cows to an all-grass diet if the level of strontium-90 in milk ever rose to a level giving cause for concern. In the same communication these authors report that the uptake of strontium by herbage is directly related to the uptake of calcium.