Livestock · September 2025 · 5 min read
Mineral supplementation is one of the most cost-effective investments in livestock health, yet it is frequently done poorly. Imbalances and deficiencies reduce fertility, growth, and immune function long before visible symptoms appear. Matching your mineral program to your forage base and species is essential.
Calcium and phosphorus are needed in the largest quantities, and their ratio matters as much as total amount. Cattle require a Ca:P ratio between 1.5:1 and 2:1. Grass-based diets are typically high in calcium and low in phosphorus, so supplemental phosphorus is often needed. Grain-heavy diets reverse this pattern and require calcium supplementation.
Salt is the most palatable mineral and drives free-choice consumption. Most livestock mineral mixes use salt as a carrier to regulate intake.
Key trace minerals include copper, zinc, selenium, and manganese. Regional soil deficiencies translate directly to forage deficiencies. Selenium is critically low in many regions of the eastern and northwestern United States.
Place mineral feeders in high-traffic areas near water and shade where livestock congregate. Monitor consumption by weighing feeders weekly. Target intake for beef cattle is typically 2–4 ounces per head per day. If consumption is too low, the mineral may be unpalatable or poorly located. If consumption is excessive, salt content may be too low to regulate intake.
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