Most dairymen and stockmen realize that cattle have established requirements for several mineral elements. Animals require these minerals because each element participates in one or more of the chemical functions that keep the body operating and producing normally.
Our objectives in mineral supplementation is then to make sure we provide all of the necessary mineral elements for the biological functions of the cow. No matter what kind of feed ingredient or supplement we provide, we want to know it will benefit biologically and that we will realize some economic benefit for our efforts. When it comes to deciding which mineral supplements to use in livestock feeding, two criteria need to be considered: Biological efficacy and economic efficiency.