Preserve silage by stimulating the beneficial, naturally occurring ensiling bacteria.

Available pack sizes: 20, 200, 1,000 L.
Available at leading rural retailers, or call 1800 359 559 or contact your sales rep to purchase.

A biological silage preservative activates the ensiling bacteria to preserve good quality maize and reduces the yeasts and fungi that can spoil it.

SilageKing is a mixture of fermentation extracts, nutrients and microbial stimulants that delivers dual-action benefits for feed quality, including:

  • Activating beneficial ensiling bacteria on forage to produce the lactic and acetic acids required to properly ensile grass and cereal
  • Inhibiting the growth of microbes such as yeasts and fungi that use up valuable energy in the forage, are responsible for heating of opened bales and silage pits, and can produce mycotoxins that affect animal health.

SilageKing comes in an easy-to-store and apply liquid, requiring no dilution prior to application through one of our custom Ascot Pump applicators with in-cab control and volume monitor.

Alternatively, you can contact a BioStart Team Member to discuss your specific application needs.

BioStart SilageKing works best with good silage-making practices, including:

  • Harvesting your crop when the whole plant matter is between 25–35%.
  • Tightly compacting and securing your pit silage stack with a weighted cover quickly to exclude air.


Feed more cows per bale
Trials reveal how Biostart SilageKing improves both the preservation
and quality of baled grass silage
Read more


Directions for use

Application rate
SilageKing Liquid

Standard round bales: 90 mL/bale

Pit silage: 150 mL/wet tonne


Material Safety Data Sheet

SilageKing Liquid

Label information

Download the product label here.

Handling precautions

When applying product avoid contact with eyes and skin. Wear protective clothing, gloves and goggles. Flush the liquid applicator thoroughly with water after use. Clean out the granule applicator with compressed air.  Do not eat or drink while using products. Wash hands and face before meals and after work. Wash protective clothing after use.

Storage instructions

Store out of direct sunlight and below 30°C, otherwise, product efficacy may be affected.

Empty container disposal

Triple rinse and return to an approved recycling centre.

Label information

Download the product label here.

Empty container disposal

Triple rinse and return to an approved recycling centre.