High potassium and grass tetany

In the past, it was believed by many that grass tetany in cattle was primarily a result of a magnesium deficiency in soils and forages. But grass tetany, milk fever, and possible downer cow syndrome, according to more recent studies, is more likely to be a result of forages that are high in potassium. When cool season grasses freeze, sodium, calcium and magnesium decrease while potassium…