EN 15789:2021

Animal feeding stuffs: Methods of sampling and analysis - Detection and enumeration of Saccharomyces cerevisiae used as feed additive EN 15789:2021

Publication date:   May 16, 2022

General information

60.60 Standard published   Nov 24, 2021


CEN/TC 327 Animal feeding stuffs - Methods of sampling and analysis

European Norm

65.120   Animal feeding stuffs



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This document specifies general rules for the enumeration of Saccharomyces cerevisiae in feeding stuffs (additives, premixtures and compound feeds excluding mineral feeds) that contain Saccharomyces cerevisiae as a single microorganism component or in a mixture with other microorganisms. Applying the method to premixtures and compound feeds with critical amounts of copper demands a special procedure (see Annex A). The document is not applicable to mineral feeds, which are defined as complementary feeding stuffs composed mainly of minerals and containing at least 40 % crude ash (Regulation (EC) 767/2009) [3].
There are different categories of feed samples:
a) Additives containing about 1010 colony forming units (CFU)/g;
b) Premixtures containing about 1011 CFU/kg;
c) Compound feeds, meal or pellets which contain about 109 CFU/kg.

Related legislation

Legislation related to this standard


Regulation (EC) No 882/2004 of the European Parliament and of the Council of 29 April 2004 onofficial controls performed to ensure the verification of compliance with feed and food law, animal health and animal welfare rules

Life cycle


EN 15789:2009


EN 15789:2021
60.60 Standard published
Nov 24, 2021