Grass tetany

Grass tetany (hypomagnesemia) is a major health problem of cattle and sheep in temperate climates. It is caused by a deficiency of utilizable magnesium (Mg). This nutritional disorder includes a number of clinical diseases known as grass tetany, grass staggers, crested wheatgrass poisoning, wheat pasture poisoning, winter tetany, transport tetany, pasture flush staggers, and in calves, a disorder called milk tetany. The problem occurs in the United Kingdom, western Europe, South Africa, Argentina, New Zealand and the USA