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Farmfact 1-60

Mineral Supplementation for Maize Silage

Grazed pasture generally contains sufficient or surplus minerals for the lactating dairy cow, although supplementation with magnesium (Mg) and with trace elements during spring is recommended. However, many farmers are using maize silage as a supplement to pasture in situations where cows would otherwise be underfed.

Maize silage is a high quality forage supplement. However, it is particularly low in sodium (Na), calcium (Ca) and phosphorus (P), and can be used as an effective carrier to supplement cows with Mg.

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