Magnesium is an essential nutrient for all animals, serving a variety of vital functions within the body for normal appetite, production and reproduction. It is especially crucial for ruminants, in particular lactating dairy cows.
Magnesium supplementation is needed to prevent hypomagnesaemia (grass tetany-staggers) and milk fever (when calcium is also low) in beef (and dairy) cows from calving to peak milk production. Magnesium is needed to activate calcium absorption-resorption and so the two are neatly intertwined
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