Right Now Mineral Bronze supplement because the grass is dormant, right now. Levels of phosphorus, coppyer, and most other minerals decrease in forage as it matures. Forage intake parallels this decline. The high nutrient density of the Bronze formula provides the right fortification during late lactation and the dry period. Excellent mineral nutrition before calving helps improve immune status and health of both cows and calves. | Right Now Mineral Bronze Livestock Feed | Size 50 lbs