Summit Dairy MagMix

Summit Dairy MagMix

Summit Dairy MagMixSummit Magmix™ is a loose mix of minerals and salt formulated to provide a supplementary source of sodium and magnesium to assist milk production in dairy cows and to aid in the prevention of grass staggers, particularly at times of increased magnesium requirements such as calving and lactation. Flavour boosted with molasses and edible meal for enhanced palatability.

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Features & Benefits

  • Can be fed on its own or added to silages and grains for mineral supplementation
  • All the benefits of Multimix plus magnesium helps prevent grass staggers and milk fever
  • Convenient and suitable for use when extra magnesium supplementation is required
  • Trace Minerals for animal health

Dose Rates

  • 70g per lactating cow per day
  • 35g per dry dairy cow per day

1 x 25kg bag = 357 cows (based on recommended dose rate of 70g per lactating cow per day)

Content – Active Elemental Loading

Sodium Chloride 89.2% Iodine 94 mg/kg
Sodium 34.8% Iron 89 mg/kg
Calcium 2.79% Cobalt 65 mg/kg
Copper 1250 mg/kg Selenium 3 mg/kg
Zinc 580 mg/kg


The Dairy Mineral range is specifically designed for New Zealand pastoral dairy systems to provide an essential source of trace minerals (Se, Co, Zn, I, Cu, Mg) with salt as a carrier. Mineralised salt products are a cost-effective, simple and successful way of preventing mineral deficiencies and maintaining healthy high producing dairy cows.

Whether the farm is set up for delivery via trough, drench or feed there is a product available. The dry mineral mixes (Multimix, Multimag) can be added to silages and grain feeds or fed on their own in feed troughs. The soluble mineral mixes (Liquimag, Liquimin) can be drenched or added to water troughs via manual application or automatic dispensing systems.

Salt– Common salt (sodium chloride) is an essential constituent of an animal’s diet. Because many New Zealand pastures are deficient in sodium, some form of supplementation is often necessary. The benefits of sodium supplementation have long been proven, most recently through a trial conducted near Rotorua by AgResearch in 1999-2000. Dairy cows supplemented with 35gm/day salt achieved an extra 12.8% in milk production. Milk yield responses occurred immediately and continued through the trial.1
Sodium is routinely expelled from the body in milk, urine, faeces, sweat, and saliva. Sodium should be available to farm animals every day and because of this, is a convenient carrier of other minerals.

Magnesium– Magnesium deficiency is common in dairy cows during late winter and spring. Clinical magnesium deficiency or grass staggers occurs when there is a low concentration of magnesium in the blood. This can occur due to low magnesium concentrations (and high pasture concentrations of potassium) in fast-growing spring herbage, low absorption in the animal coupled with the high demands of pregnancy and lactation.

A magnesium deficiency can result in milk fever through its indirect influence on calcium absorption via the parathyroid hormone. When blood calcium concentrations drop, parathyroid hormone secretion increases to increase calcium absorption.

A deficiency in magnesium causes a reduction in this parathyroid response resulting in milk fever.

1 AgResearch trials at Te Waikite Valley, 2000, Mike O’Conner and Martin Hawke

Salt BlocksElements

New Zealand dairy cows grazing pasture are most susceptible to deficiencies of cobalt, copper, iodine, and selenium.

Zinc supplementation is also important for immunity and hoof health.

Trace mineral deficiencies may induce problems such as abortions, retained placentas, mastitis, and infertility.

Some more mineral specific problems are as follows:

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