I found this on "The Beef Site," about minerals which is real informative about ingredients you should look for in your mineral bag. The companies do not always list the information that we need on the bag; but it is important to find out.
This article tells explains how each nutrient is beneficial to cattle, such as copper, zinc, selenium, etc......
http://www.thebeefsite.com/articles/1549/mineral-and-vitamin-nutrition-for-beef-cattle
This article tells explains how each nutrient is beneficial to cattle, such as copper, zinc, selenium, etc......
http://www.thebeefsite.com/articles/1549/mineral-and-vitamin-nutrition-for-beef-cattle