Magnesium sulfate is a compound containing magnesium. It is a small white oblique or oblique columnar crystal, odorless and bitter. However, in feed, it is often used as an additive to supplement magnesium in livestock.

Feed grade magnesium sulfate is used as a magnesium supplement in feed processing. Magnesium is an indispensable factor in the bone building process and muscle contraction in livestock and poultry, and is an activator of various enzymes in livestock and poultry, and plays an extremely important role in the metabolism and nerve function in livestock and poultry. If the livestock and poultry lack magnesium, it will lead to material metabolism and nerve dysfunction, supply imbalance, affect the growth and development of livestock and poultry, and even lead to death.