We suggest that salt-mineral mixes contain 10 to 15 percent magnesium. Some simple mixtures that may be suitable for preventing grass tetany are shown in Table I . Immediate Treatment Cattle afflicted with grass tetany need immediate treatment. The most common treatment is an intravenous injection of at least 500 cc of a dextrose solution containing both magnesium and calcium. Consult your local veterinarian regarding recommended preparations and dose rates.
Some veterinarians prefer to inject magnesium sulphate intravenously.
Decreasing losses from grass tetany depends on using one or more of the suggested preventive management practices, and timely treatment of affected animals. Table I. High magnesium salt-mineral mixtures for reducing hypomagnesemia. Kenneth R. Bolen, Director of Cooperative Extension, University of Nebraska, Institute of Agriculture and Natural Resources.