Summit Salt Only Blocks – Rock and Harvest 20kg

Lack of sodium can be a production limiting issue. It is easily fixed with salt.

Summit Rock Salt Block

Summit Rock Salt Block 20kg is a salt block without added minerals or flavouring. The compact blocks are easy to stack, handle and dispense. Summit Rock Salt Block can be used all year round with all stock classes. Raw salt used in the block is from fresh seawater, evaporated using sun and wind. The raw salt contains traces of ocean minerals. Summit Rock Salt Block is available in 20kg cartons.


Summit Harvest Salt Block

Summit Harvest Salt Block 20kg is a salt block without added minerals of flavouring, available in Safety Slings, 30 x 20kg blocks per sling.



MineralSummit Rock Salt Block 20kgSummit Harvest Salt Block 20kg
ApplicationMake blocks freely available all year roundMake blocks freely available all year round
Animal exclusionsNoneNone
Packaging20kg cartonsSafety Slings (30x20kg blocks per sling)

Dose Rates: make salt blocks freely available as required

  • 20kg blocks – sheep, goats, camelids – 1 block per 50 head, 1 block should last +50 days, consumption 5-10g/head/day
  • 20kg blocks – cattle, deer – 1 block per 10 head, 1 block should last +50 days, consumption 15-25g/head/day


  • For animal treatment only.
  • Make sure animals have access to fresh water when feeding salt.
  • Do not exceed the recommended dose rates.

Sodium and Production

Salt is lost in milk, urine, faeces, sweat and saliva. And it is not insignificant – a cow milking 20 litres/day can lose the equivalent of 35g of salt in the milk each day. Pasture can be low in sodium and bulk feeds are often deficient. The benefits of sodium supplementation have been demonstrated in NZ and overseas.

Animals have a strong appetite for salt but individual salt needs will vary. Factors influencing needs include:

  • Sodium and chloride levels in the pasture
  • Sodium and chloride levels in the water
  • The production cycle – growth, reproduction and lactation will increase requirements
  • Temperature/humidity – sweating will increase sodium requirements
  • Potassium levels in the diet – animals will try to balance high potassium feeds with additional salt to maintain fluid balance
  • Low sodium levels in bulk feeds
Summit Rock Salt and Harvest Salt Blocks are a cost effective way of supplementing salt required to maintain production.

Summit recommends:

  • Salt in some form should be available at all times all year around
  • Salt blocks should be available at all times when grazing Lucerne
  • More salt is available to lactating, young and growing animals
  • More salt is available when feeding fibrous feeds
  • Salt blocks should be available when grazing pasture recently fertilized with potassium


All salt is soluble. Summit Salt Block formulations improve water shedding. Trials prove Summit Salt Blocks last nearly 4 times longer than rock salt and require twice as much rainfall before being broken down when exposed to weather elements.  View our Salt Block weathering study results.


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