KOFASIL® S ready to use!

Heterofermentative bacterial preparation for improving the aerobic stability of silage

Perfectly hygienic silage for farm animals and biogas plants

When silage is exposed to air, its quality can deteriorate, as valuable, easily digestible nutrients are broken down by yeasts and moulds. There is also a risk of mycotoxins forming. Signs of the growth of these micro-organisms are an increase in the temperature of the silage and typical discolorations (blue-green, red) in the form of mould nests or hot spots.

This particularly affects well-fermented, high-energy silo maize, but silage made of grass and whole cereal plants may also display signs of heating on exposure. Ensiling mistakes such as poor compaction, ensiling forage that has been harvested late, or insufficient turnover increase the risk of such processes. This can be avoided by applying good farming practices and using KOFASIL S.

KOFASIL S contains a specially selected non-GM strain of the lactic acid bacteria Lactobacillus buchneri. In addition to lactic acid, this also forms a certain amount of acetic acid which inhibits yeasts and moulds, which improves the storage life of silage kept in non-airtight conditions where heating on exposure could occur without the use of inoculant.

KOFASIL S is recommended for protecting the quality of various types of silage used in animal feed. 

  • Prevents mould growth and production of mycotoxins

  • Avoids feed and energy losses

Range of application

Kofasil S can be used for silage made from Maize, Maize ear products, whole cereal plants and grass.


Lactobacillus buchneri DSM 13573 (min. 1 x 10^11 CFU/g) 

Storage life:

The product will keep for 6 months from the date of manufacture if stored in sealed original aluminium bags at room temperature (max. 20 °C), and for 18 month in a freezer (-18 °C).

Once the product is dissolved in water it must be used within 24 hours.

Application rate:

1 g/t forage

Inoculation rate:

Min 100,000 CFU Lactic Acid Bacteria/Gram of Forage.

Classification according to EU feed additive legislation:

The bacterial strain used in KOFASIL S has been authorised according to the COMMISSION IMPLEMENTING REGULATION (EU) No 1119/2012 of 29

November 2012 in the category technological additives, functional group silage additives for all animal species. It has been assigned the identification number 1k20733.

Quality Assurance


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