Minerals to Cows

Minerals to Cows

Dr. Ken McMillan

DTN/The Progressive Farmer

The amount of minerals in forages varies tremendously over the year. Lower levels and availability of calcium and magnesium in lush spring grasses, combined with a cow’s peak need for calcium and magnesium, may mean an increase in cases of milk fever (low calcium), grass tetany (low magnesium) or a combination of both (what I call lactation tetany).

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