Magox® — Magnesium Oxide for Animal Nutrition

To assure the most efficient animal nutrients, Premier Chemicals has sponsored extensive Magnesium nutrition research at eighteen universities and independent testing facilities for more than thirty years. As a result, feed formulators are more aware of current animal requirements for magnesium and the differences in bioavailability of various Mg sources.

Magnesium has always been essential in animal diets for normal appetite, growth and reproduction. Since forages and grains are often deficient in Magnesium, a supplemental source with high biological availability is important to assure top animal performance. Magnesium Oxide (MgO) is the source most widely used in the feed industry due to its high concentration of Magnesium.

Adequate magnesium is also vital in the prevention of grass tetany in cattle and sheep. This condition occurs frequently during grazing in the spring and fall. Supplementing the forage with a mineral mixture containing readily available MgO provides the best protection against grass tetany.

MgO is also a very important component of rumen buffers and other dairy supplements. These additives are commonly used with higher producing cows that are fed extremely concentrated rations. When combined with sodium bicarbonate, MgO helps to improve the low butterfat content while maximizing milk production.

Rations for feedlot cattle and swine include magnesium oxide as a nutritional source of Magnesium. Some feeders report that magnesium supplements are even effective in reducing irritability - especially with swine and horses.

Today, many feed blocks are made with reactive grades of MgO to aid in their hardening process. In this case, MgO is essential to assure proper block curing and to avoid over-consumption by the animals.

Premier Chemicals has a wide variety of feed grade magnesium oxides to choose from:

MAGOX® Regular Feed Grade 54% Mg MAGOX® Feed Grade 100 52% Mg
  • Moderate Reactivity
  • Quick Solubility
  • Proven Biological Availability
  • Moderate Reactivity
  • Quick Solubility
  • Proven Biological Availability
MAGOX® 98 HR 58% Mg MAGOX® 93 HR 54% Mg
  • Feed Block Grade
  • Very High Reactivity
  • Feed Block Grade
  • Consistently High Reactivity
  • Fine 325 Mesh Sizing